Two subcategories can bulk transport be divided are A. exocytosis and endocytosis
Two types of bulk transport systems are exocytosis and endocytosis, and they need the expenditure of energy or ATP. In the process of exocytosis, materials are generally exported out of the cell through secretory vesicles.
Hence, Bulk transport is two types firstly Exocytosis the process that involves expulsion of materials from the cell with the help of a carrier vesicle known as exocytotic vesicle. Other one is Endocytosis that is process in which the cells absorb materials such as proteins from outside by engulfing them.
Hence , A is the correct option
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what is it called when a bunch of genes work together to create characteristics?
The phenomenon of a group of genes working together to create a particular characteristic is called gene expression.
Gene expression is the process by which the genetic code in a gene is used to direct the synthesis of a functional gene product. This product can be a protein, RNA molecule or other type of molecule, which in turn plays a role in various cellular processes and ultimately determines the characteristics of an individual. The regulation of gene expression is a complex process that involves the interaction of many different factors, including transcription factors, epigenetic modifications, and environmental factors. The coordinated action of many genes is often necessary to produce complex traits such as eye color, height, or the ability to digest lactose. Overall, gene expression is a fundamental process in biology that underlies the development and function of all living organisms.
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macrophages that reside in tissues express several types of receptors that are broadly referred to as what types of receptors?
Two different types of receptors are expressed by macrophages in tissues. They are broadly referred to as phagocytic and signaling receptors, thus the correct option is B.
Macrophages are effector cells of the innate immune system that release both pro-inflammatory and antibacterial mediators in addition to phagocytosing microorganisms. Additionally, macrophages are crucial in the elimination of sick and damaged cells due to their programmed cell death. Typically, macrophages consume and break down foreign substances, tumor cells, debris, and dead cells. They assist the body in maintaining homeostasis by acting as phagocytes, trophic, regulatory, and repair cells in response to both internal and external disturbances.
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The complete question is:
Macrophages that reside in tissues express two types of receptors. They are broadly referred to as _______ and ______ receptors.
A) death; neutralizing
B) phagocytic; signaling
C) activating; inhibitory
the fatty substances produced by certain glial cells that coat the axons of neurons to insulate, protect, and speed up the neural impulse is the .
The fatty substances produced by certain glial cells that coat the axons of neurons to insulate, protect, and speed up the neural impulse is called myelin.
Myelin is a complex substance composed of lipids and proteins that forms a sheath around the axon of a neuron. This sheath serves as an insulator and provides a protective layer around the nerve fiber.
The glial cells responsible for producing myelin are known as oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system. These cells wrap around the axons of neurons, forming a spiral of myelin that covers the entire length of the axon.
Myelin serves several critical functions in the nervous system. First and foremost, it provides insulation around the axon, allowing electrical signals to travel quickly and efficiently along the length of the neuron. This speeds up the neural impulse and helps to ensure that signals are transmitted accurately and without interference.
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Why are proteins (and therefore the process of translation!) important to living organism?
Answer:
Explanation:
Proteins are essential to living organisms because they perform a wide range of functions that are critical for life. Proteins are involved in almost all cellular processes, including structural support, metabolic reactions, signaling, and regulation. They also play key roles in maintaining the integrity of cells and tissues, facilitating the transport of molecules across cell membranes, and generating energy. Additionally, some proteins function as enzymes, which catalyze important chemical reactions in the body.
The process of translation, by which the genetic information in RNA is used to produce proteins, is a crucial step in the production of functional proteins. Translation takes place in the ribosome, where ribosomal RNA and transfer RNA work together to assemble the amino acid sequence of a protein. This process is critical because without functional proteins, cells, and organisms could not carry out their functions. Proteins are therefore essential to the survival and growth of living organisms.
what is the developmental stage of an embryo in which a single layer of cells is surrounded by a space filled with fluid called
The developmental stage of an embryo in which a single layer of cells is surrounded by a space filled with fluid is called a blastula.
During early embryonic development, the fertilized egg undergoes a series of cell divisions, forming a ball of cells called a morula. As the cells continue to divide and differentiate, a fluid-filled cavity called the blastocoel begins to form within the ball of cells, creating a hollow sphere called a blastula. The blastula is made up of a single layer of cells, called the blastoderm, which surrounds the blastocoel.
The blastula is an important stage in embryonic development, as it marks the transition from the earlier stages of cleavage and morula formation to the later stages of gastrulation and organogenesis. During gastrulation, the blastula folds in on itself to form a structure known as the gastrula, which gives rise to the three primary germ layers that eventually differentiate into all of the body's tissues and organs.
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14) Besides being prescribed to humans, explain one other ways antibiotics are being used.
15) How was NFL football player Daniel Fells affected by bacteria and antibiotic resistance?
16) What was Alexander Fleming’s contribution to science?
1) Use evidence from the passage and “Rise of the Supergerms” to explain why it is important to search for new antibiotics.
2)According to the passage above, why is it beneficial to study bacteria found in nature to try to discover new antibiotics?
3) Explain the problem the scientists were trying to solve in developing the iChip.
4) Why do you think it is important that bacteria be placed in individual pits in the iChip?
5) Why is the discovery of text actin so important in the fight against antibiotic-resistant bacteria? Use evidence to support the passage and “Rise of Supergerms” to support your answer.
Antibiotics have different mechanisms of action, but they usually target bacteria vital processes such as protein or cell wall sysnthesis.
What the Tetracycline binds?Tetracycline binds to the 30s and 50s subunits of the ribosome blocking the introduction of new amino acids to the peptide chain being synthetised. Without protein synthesis cells cannot divide, helping the immune system to kill them.
Penicillin inhibits the enzyme involved in the final step of cell wall biosynthesis interrupting bacteria cell division. Bacteria have developed different strategies for the movement of material genetic other than the vertical transmission in mitosis.
Therefore, Antibiotics have different mechanisms of action, but they usually target bacteria vital processes such as protein or cell wall sysnthesis.
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daptomycin is an antibiotic that binds to the bacterial membrane and allows ions to freely flow through the membrane. how would this kill a cell?
Daptomycin is an antibiotic that binds to the bacterial membrane, causing depolarization of the membrane potential and rapid efflux of potassium ions from the cell.
This Daptomycin disrupts the integrity and function of the bacterial membrane, ultimately leading to cell death. Specifically, the increased permeability of the membrane leads to leakage of cellular contents, including ions and other molecules. The loss of intracellular contents disrupts essential cellular processes, Daptomycin which ultimately leads to cell death. Additionally, the loss of potassium ions can lead to a reduction in the proton motive force, which is required for ATP production, and can also trigger the release of bacterial membrane enzymes, causing further damage to the cell.
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In Avery, MacLeod, and McCarty'\'s experiments, homogenates from heat-killed bacteria were treated with different enzymes, and then the ability of those homogenates to transform bacteria was assayed. Under which condition would transformation not occur?
The transformation of the bacteria in Avery, MacLeod, and McCarty's experiment would not occur when the homogenates from heat-killed bacteria were treated with the enzyme DNase.
Avery, MacLeod, and McCarty's experiment (which was reported in 1944) was an experiment that demonstrates that DNA is the substance that causes bacterial transformation. From their experiment, we know that the transformation of the bacteria would not occur when the homogenates from heat-killed bacteria were treated with the enzyme DNase. This is because DNase breaks down DNA, which is the genetic material that is responsible for transformation. Without any intact DNA, the bacteria cannot be transformed.
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The zygote is a single cell and human adult has about 100 trillion cells. Approximately how many divisions should the zygote undergo to form the adult, considering the fact that one cell division leads to the formation of two cells?
Answer: 47 Divisions
Explanation:
We developed from a single-celled zygote by the process of mitosis and meiosis. The cells continued to divide until you were a multicelled organism. It would take 47 divisions to become an organism with 100 trillion cells.
What does this symbol represent in terms of life cycles, and why is it drawn this way? O Sporophyte: It is a simple way of drawing the many spores within the sporophyte. O Multicellular organism: It is a simple way of drawing many cells to represent a multicellular life stage. O Spore: It is drawn this way to distinguish it from gametes, which are also single-celled. O Cell with cytoskeleton: It is drawn to show microtubules. O Nucleus with chromosomes: It is drawn to show two sets of chromosomes, making it diploid.
Multicellular organism: it is a simple way of drawing many cells to represent a multicellular life stage.
What is a Multicellular organism?
An organism with numerous cells is said to be multicellular. Technically, "multicellular" refers to more than one because the word "multi" is used to describe multiples of something.
The division of labor and cellular specialization enables the development of multicellular creatures. Cells become proficient at a single task and rely on other cells to do other tasks. To ensure an organism functions properly, all cells collaborate.
The following are crucial traits of multicellular organisms:
Complex organisms, multicellular organisms are made up of several cells.They can be seen with the unaided eye.They have unique organ systems and organs.Since they are eukaryotes, they have structures that are bound to membranes.To learn more about Multicellular organisms visit;
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baboons and colobuses are the only old world monkeys included in this phylogenetic tree. what species or group of species is most closely related to the old world monkeys? please select all correct answers.
The species or group of species that are most closely related to the old world monkeys are Option G, H, and I: Orangutan, human and Chimpanzee respectively.
Because the two species are so closely related, human and chimp DNA are remarkably similar. From a single progenitor species that existed six or seven million years ago, humans, chimpanzees, and bonobos all descended. Their DNA, which is passed down from generation to generation, changed as humans and chimpanzees eventually evolved from a shared ancestor.
A taxon in biology is a collection of one or more populations of an organism or populations of organisms that taxonomists consider to be a single entity (backformation from taxonomy; plural taxa). A taxon is typically known by a particular name and assigned a particular grade, while neither is necessary.
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waves of muscular contractions that propel food along the gastrointestinal tract are called ___
Waves of muscular contractions that propel food along the gastrointestinal tract are called Peristalsis
What exactly is peristalsis, and where does it occur?Peristalsis is the wave-like movement of the muscles that lining your digestive tube. Peristalsis is the movement of food through your digestive system. It begins in your throat when you swallow and continues through your oesophagus, stomach, and intestines as you digest.
Motilin is a hormone that is secreted cyclically during fasting by entero-endocrine cells (Mo cells) in the upper small intestine. Motilin increases gastric and small intestinal motility, causing undigested food to migrate into the large intestine.
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What lymphatic organs filter the blood?
The lymphatic organs include the lymph nodes, tonsils, spleen, and thymus. An organ that serves as a blood filter is the spleen, which is situated close to the stomach.
It eliminates red blood cells that are stale, broken, or aberrant and stores some white blood cells as well. A gland in the chest called the thymus aids in the creation of T-cells, which are vital for protecting the body against infection. In the back of the throat, the tonsils serve as a filter to collect and hold foreign substances including bacteria, viruses, and other poisons.
Last but not least, the lymph nodes are tiny glands with a bean-like structure that are distributed throughout the body and function as filters to capture and exterminate bacteria, viruses, and other undesirable organisms.
Additionally, they create white blood cells that aid the body in infection defence. Together, the lymphatic organs support the immune system and defend the body against infection.
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what is the tissues that cover external and internal body surfaces?
The epithelium is a kind of bodily tissue that forms the coating on all of your body's internal and exterior surfaces, lines body cavities and hollow organs, and is the main tissue in glands.
Depending on where it is in your body, epithelial tissue has a range of roles, including protection, secretion, and absorption. The organs in your body are made up of four different types of tissue:
Epithelial.Connective.Muscular.Nervous.Epithelial cells make up epithelial tissue. Depending on where they are in your body and what tasks they perform, the cells might have varied forms and organised in a single layer or numerous layers.
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True or False statement, in appositional growth, chondrocytes within cartilage divide and secrete new matrix.
Option B, In appositional growth of cartilage, new chondrocytes and new matrix are added on the outside of the tissue.
Appositional growth is one of the mechanisms by which cartilage grows. During appositional growth, chondrocytes in the outer layer of the cartilage, also known as the perichondrium, divide and differentiate into new chondrocytes. These new cells secrete additional extracellular matrix, including collagen and proteoglycans, on the surface of the existing tissue. As a result, the cartilage grows by the addition of new cells and matrix on the outside of the tissue. This is in contrast to interstitial growth, where chondrocytes within the tissue proliferate and add more matrix from the inside. Both mechanisms of growth are important for maintaining Appositional growth the structural and functional properties of cartilage in various parts of the body.
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In appositional growth of cartilage,
a) chondroblasts within the tissue proliferate and add more matrix from the inside.
b) new chondrocytes and new matrix are added on the outside of the tissue.
c) osteoblasts replace the chondroblasts.
d) the tissue becomes vascularized in order to grow.
e) the cartilage is replaced with another kind of connective tissue.
Put the phases of the cardiac cycle in the correct order, starting after ventricular filling. isovolumetric contraction, ventricular ejection, isovolumetric relaxation ventricular ejection, ventricular relaxation, isovolumetric contraction
Option (D) isovolumetric contraction, ventricular ejection, and isovolumetric relaxation in the correct order, beginning after ventricular filling. The length of the cardiac cycle is proportional to the heart rate.
The duration of the cardiac cycle increases as the heart rate decreases and decreases as the heart rate increases. One cardiac cycle lasts 0.8 seconds at a normal heart rate of 75 beats per minute. Systole accounts for 13 of the cardiac cycle duration at rest, while diastole accounts for 23. When the heart rate increases (for example, during intense muscle work), the duration of diastole decreases much more than the duration of systole.
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the equilibrium potential of k ions in nerve cells is about -90 mv. the membrane potential of typical neurons at rest is -70 mv. what would happen if the permeability of the membrane to k increased compared to a typical neuron?
if the permeability of the membrane to k increased compared to a typical neuron, then this Increasing the permeability of a resting neuronal membrane to K+ will make the membrane potential more negative inside with respect to outside.
permeability can be defined as the about how easily a molecule can pass through the cell membrane between the internal cytoplasm and external interstital fluid and membrane potential is the charge difference inside neuron and outside environment.
This easy flow of potassium ion is due tothe membrane which is permeable to potassium at rest and due to the open non-gated channels, potassium will be able to flow across the membrane very easily.
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why is it logical to observe that wind-pollinated species usually grow in dense stands containing many individuals of the same species?
It makes sense for wind-pollinated plants to grow in dense numbers as they need dense stands of the same species to thrive and because the great majority of wind pollen does not find an adequate ovule.
Wind pollinates many of our most prevalent plant species, including grasses, conifers, and food plants like wheat, rice, and corn.
The wind, which came into existence before insects and creates tiny, inconspicuous flowers, physically transports pollen. Yet, there are a number of drawbacks to wind pollination as well: There is a lot of pollen produced by these plants, but the majority of it does not find an adequate ovule. unpredictable wind direction and speed. Wind-pollinated plants often require dense stands of the same species to survive..
Some of this wind-borne pollen was ingested by early insects, which later evolved over millions of years into the bees and other pollinators we see today.
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What is the name of the scientists who determined the structure of DNA?
The discovery in 1953 of the double helix, the twisted-ladder structure of deoxyribonucleic acid (DNA), by James Watson and Francis Crick marked a milestone in the history of science and gave rise to modern molecular biology.
They quickly gained revolutionary understanding of the genetic code and protein synthesis as a result of their discoveries. It supported the development of innovative and potent scientific methods in the 1970s and 1980s, particularly recombinant DNA research, genetic engineering, rapid gene sequencing, and monoclonal antibodies, which served as the foundation for the multibillion dollar biotechnology industry that exists today. The mapping of the human genome, the development of modern forensic science, and the as-yet unrealized promise of gene treatment are all examples of significant recent scientific advancements that were all sparked by Watson and Crick. Not only has the double helix changed biology, but it has also become a cultural icon, appearing in jewelry, toys, sculptures, and other works of art.
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___________ leave the blood and enter tissues to fight off pathogens and invaders.
For the purpose of fending off infections and intruders, white blood cells leave the plasma and go into tissues. The ideal choice is d).
What would be tissue and what does it do?Tissues are groups of cells that function as a cohesive block and share a common structure. The body processes give it shape and help to store energy and retain heat. Connective tissue, parenchyma cells, muscle tissue, and nervous tissue are the four different types of tissues.
Why is tissue so crucial?They indicate a level of order and cell differentiation in living things. The activities of tissues include respiration, digesting, and transportation. Tissues are therefore essential for multicellular organisms.
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The Complete Question :
___________ leave the blood and enter tissues to fight off pathogens and invaders.
a. Platelets
b. Capillaries
c. Red blood cells
d. White blood cells
a double-stranded dna oligonucleotide and a double-stranded rna oligonucleotide of identical sequence (substituting u for t) are both present in an aqueous solution near neutral ph. apart from the presence of u in rna versus t in dna, how will their helical structures differ?
In terms of their helical structures, DNA and RNA differ in several ways. Firstly, DNA typically forms a double-stranded helix, with the two strands held together by hydrogen bonds between complementary base pairs.
These base pairs consist of adenine (A) paired with thymine (T), and cytosine (C) paired with guanine (G). In contrast, RNA typically forms a single-stranded helix, although it can fold back on itself to form double-stranded regions. RNA also contains the base uracil (U), which pairs with adenine (A) in a similar manner to thymine (T) in DNA.
In terms of the specific question posed, a double-stranded DNA oligonucleotide and a double-stranded RNA oligonucleotide of identical sequence (substituting U for T) would differ primarily in their helical structure due to the difference in base pairing. In RNA, uracil (U) would pair with adenine (A), while in DNA, thymine (T) would pair with adenine (A).
This difference in base pairing would affect the overall shape of the molecule, as well as the stability of the helix. In particular, the hydrogen bonding between uracil (U) and adenine (A) is weaker than that between thymine (T) and adenine (A), meaning that the RNA helix may be less stable than the DNA helix.
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what is the difference between a negative feedback system and a positive feedback system?
A equilibrium state (or stable equilibrium) is maintained by the control centre turning the effector "on and off" in a negative feedback system; in a positive system, the actuator continually increasing its output.
Positively and negatively feedback react differently to change: good feedback intensifies change, whilst negative input slows it down. This implies that positive comments will lead to more of a given product, such as more apples, contractions, or platelets that coagulate. Positive feedback loops magnify or intensify changes, which tends to push a system out of balance and increase its instability. Negative feedbacks have the tendency to muffle or dampen changes, which serves to keep a system in an equilibrium condition and increase stability.
(What is the difference between a negative feedback system and a positive feedback system?
In a negative feedback system, the control center raises or lowers the set point until the signals from the sensor stop; in a positive feedback system, the set point remains constant.
In a negative feedback system, the control center signals the effector to go "on and off" to maintain a steady state (or stable equilibrium); in a positive feedback system, the effector keeps increasing its output.
In a negative feedback system, the organism is most likely experiencing a disease state. In a positive feedback system, the organism is most likely healthy.
In a negative feedback system, the consequences of the action can harm the animal; in a positive feedback system, the animal is not harmed.)
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what is the most frequently broken bone in the body
Clavicle. One of the body's bones that is most frequently broken is the clavicle, also known as the "collarbone."
Treatment and riskThe majority of children's fractures occur here, in fact. As newborns move through the delivery canal, they are at risk for developing clavicle fractures.The course of treatment for a clavicle fracture depends on where the break occurs and how severe it is. If the break is nondisplaced, meaning the edges of the bones are in contact, the treatment is to wear an arm sling for a few weeks to allow the bone to heal. Surgery is frequently necessary when a fracture is dislocated, which means the edges are not aligned.For more information on clavicle kindly visit to
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in eukaryotes, where do general transcription initiation factors bind?promoter
In eukaryotic cells, the universal transcription factor complex TFIID is crucial for the start of transcription. It works by tethering the TBP component protein to the "TATA box" sequence upstream of the transcriptional initiation.
A DNA transcription unit encoding for a protein may also comprise coding sequences that will be translated into the protein, in addition to regulatory sequences that direct and regulate the synthesis of the protein. The regulatory sequence that comes before (or "upstream" from") the coding sequence is known as the five prime untranslated region (5'UTR), whereas the regulatory sequence that comes after (or "downstream from") the coding sequence is known as the three prime untranslated region (3'UTR).
The complete question is:
In eukaryotes, where do general transcription initiation factors bind?
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Does epistasis require two or more loci?
Yes, in order to create a particular phenotype, epistasis requires interactions between two or more loci (genes). When a gene mutation has unintended consequences, this is known as epistasis in genetics.
A sort of genetic interaction known as "epistasis" occurs when the activity of one gene (locus) depends on the presence of one or more additional genes (loci). In other words, the presence or lack of additional genes affects the phenotypic expression of a single gene. Since the interaction between the genes takes place at the genotype level, epistasis therefore necessitates the presence of at least two loci. The expression of the hypostatic gene may be improved or concealed by the epistatic gene. Based on the specifics of the interaction between the implicated genes, epistasis may be divided into many categories.
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true or false The ENERGY STAR program encourages manufacturers to reduce the amount of electricity used by computers and related devices.
The sentence is true. The energy star program pushes manufacturers to lower the electricity consumption of computers and related equipment.
What precisely is electricity?
The motion of charged particles like electrons results in the generation of electricity, a type of energy. It frequently supplies power for electrical equipment such as lamps, computers, televisions, and other gadgets. Electric trains and electric cars are examples of vehicles that can run on electricity. It is utilised in a number of sectors, including healthcare, agriculture, and manufacturing. Many energy sources, including as coal, natural gas, nuclear energy, hydropower, and wind, are used to produce electricity. Modern life is impossible without electricity since it provides the power required for numerous daily tasks.
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In guinea pigs, black coat color (B) is dominant over white coat color (b) and short hair (S) is dominant over long hair (s). Based upon the dihybrid cross shown, what is the genotype and phenotype for letter X? BbSs; white coat, long hair BbSs; black coat, short Bbss; white coat, short
Answer:
I believe it would be BbSs: black coat, short
Explanation:
what did went’s experiments with the gelatin block demonstrate?
Experiments with the gelatin block demonstrate that plants cannot be induced to bend during growth unless they are exposed .
Plants cannot be induced to bend during growth unless they are exposed to an indirect source of light. Light induces the coleoptile to produce a diffusible substance that moves to the growing region of a plant where it stimulates cells to elongate.
Experiment demonstrated the existence of auxin in plants. His interest gradually shifted to environmental influences on plant growth. At Caltech he was the first to examine the significance of hormones in plant development and growth .This signal, a hormone now known as auxin, moves down the dark side of the plant to stimulate faster growth on that side, causing the plant to curve toward the light.
This whole experiment of basically related to provide knowledge about plants the growth ,parts there behaviour with different atmosphere .
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Transcription is similar to DNA replication, in that:
a. an RNA transcript is synthesized discontinuously, and the pieces are then joined together
b. it uses the exact enzyme as that used to synthesize RNA primers during DNA replication
c. the newly-synthesized RNA remains paired to the template DNA nucleotide
d. polymerization occurs only in the 5'-to-3' direction
The correct answer is option d. Transcription is similar to DNA replication in that polymerization occurs only in the 5'-to-3' direction.
Transcription is comparable to DNA replication in that it requires the creation of RNA from a DNA template, much like DNA replication. The RNA polymerase enzyme catalyses the 5'-to-3' polymerization of nucleotides throughout both procedures.
During transcription, RNA polymerase attaches to a gene's promoter region and then creates a corresponding RNA transcript using the template DNA nucleotide. Contrary to DNA replication, transcription happens in fragments, with freshly generated RNA bits being linked.
Additionally, during DNA replication, certain enzymes are utilised to create RNA primers; these primers are not needed during transcription.
The freshly generated RNA also stays coupled to the template DNA nucleotide throughout transcription, but the DNA double helix's two strands are separated during DNA replication.
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Woolly mammoths became extinct around 4,000 years ago. A recent study conducted by scientists found that the last generations of woolly mammoths were plagued by harmful gene mutations. Some of the mutations caused them to have softer fur that didn’t protect them from the cold, a diminished sense of smell, and digestive problems.
A species potential for evolution is based on four factors:
the potential for a species to increase in number
the heritable genetic variation of individuals in a species due to mutation and sexual reproduction
organisms competing for limited resources such as food or water in their environment
the proliferation of those organisms that are better able to survive and reproduce in the environment
In two to three paragraphs, explain why the last generations of woolly mammoths couldn’t meet these factors to evolve in a changing environment. Also explain how data such as the fossil record and DNA evidence can identify the factors that can lead to the evolution of a species.
Answer:
Explanation:
The last generations of woolly mammoths were unable to meet the four factors for evolution because they were plagued by harmful gene mutations. These mutations caused a decrease in their fur density and thickness, making them vulnerable to the cold, as well as a decrease in their sense of smell and digestive problems. These traits made it difficult for them to find food and survive in their environment, leading to a decrease in population numbers.
Data such as fossil records and DNA evidence can be used to identify the factors that can lead to the evolution of a species. The fossil record provides a timeline of a species' physical characteristics and adaptations over time, while DNA evidence provides information about genetic changes and mutations. Both sources of data help scientists understand how species have evolved over time and why some species have become extinct. In the case of the woolly mammoths, the fossil record and DNA evidence revealed that harmful gene mutations were a significant factor in their extinction. By understanding the evolutionary factors that led to the extinction of the woolly mammoths, scientists can better understand how to protect other species from a similar fate.
