Answer:
Caucasians are more lactose persistent because they come from a long line of people who have been able to adapt to the lactose in milk. They have a mutation in their DNA that allows them to break down the lactose into glucose and galactose, which are then used for energy by the body.
During dna replication, which enzyme removes the rna primers and then fills in the gap?.
During DNA replication DNA polymerase I removes the RNA primers and replaces them with DNA nucleotides. completing DNA replication Gaps are filled by DNA pol I by adding dNTPs.
What is DNA replication ?DNA replication can be defines as the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information. So An enzyme are called DNA polymerase next begins replicating the DNA by matching bases to the original strand. Once synthesis is complete, the RNA primers are replaced with DNA, and any gaps between newly synthesized DNA segments are sealed together with enzymes.
Therefore DNA polymerase I removes the RNA primers and replaces them with DNA nucleotide.
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pls answer this asap
Suggest why the temptation of baby food must be controlled by enzymes added .?
The temptation of baby meals needs to be controlled through enzymes introduced because enzymes manually modify the metabolism of a mobile, they have a tendency to be carefully controlled.
Enzymes play foremost roles in baby meal production, ranging from improving the flavor, solubility, and digestibility of vitamins in infant foods. Enzymes have additionally been used to produce a few useful elements that are added to infant foods.
That is distinctly crucial in keeping homeostasis, permitting cells to respond in controlled methods to changes in each internal and outside condition. Inhibition of particular enzymes with the aid of drugs also can be medically beneficial.
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You have been asked to draw a Bohr model of the element carbon. How would you arrange the dots that represent electrons?
A.
They would be embedded in a solid core.
B.
They would be in rings around the nucleus.
C.
They would be located in a central nucleus.
D.
They would be spread evenly in the shape of a cloud.
You have been asked to draw a Bohr model of the element carbon. How would you arrange the dots that represent electrons?.... They would be in rings around the nucleus.
What is nucleus ?
Protons, which have a positive charge, and neutrons, which have no electrical charge, make up the nucleus. Quarks are subatomic particles that make up protons and neutrons.
A small, positively charged nucleus and negatively charged electrons orbit each other to form an atom in the Bohr Model. Here's a closer look at the Rutherford-Bohr Model, also known as the Bohr Model.
Hence the correct answer is B. They would be in rings around the nucleus.
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which of the following organisms is a heterotroph? which of the following organisms is a heterotroph? kelp cyanobacteria intestinal bacteria pond algae
The gram-negative bacteria known as cyanobacteria are special because they can perform photosynthesis, releasing oxygen into the atmosphere and fixing nitrogen.
A heterotrophic system is what?With heterotrophic feeding, organisms must obtain their nourishment from other species in order to survive. They are unable to manufacture their own food, just like green plants.
Which types of algae are heterotrophic?Heterotrophic microalgae may develop in the dark by utilising organic compounds as carbon and energy sources, in contrast to autotrophic microalgae, which rely on photosynthesis for growth energy. In order to grow, mixotrophic microalgae can utilise both light energy and provided organic carbons.
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What did scientists find in the bottom of the flask?
glucose
lipids
amino acids
Answer:
amino acids
Explanation:
In a gro
group, the gene for the Bekko patterning trait has
patterning (B) is dominant over the allele for not having Bekko patterning (b).
The Punnett square below shows a cross between two koi fish. Consider the phenotypes of
the offspring shown. Select one box that represents offspring that do not have Bekko
patterning.
B
b
b
Bb
bb
b
Bb
bb
The box with the recessive trait b that is bb do not have Bekko patterning..
By experimenting with pea plant breeding, Mendel evolved 3 standards of inheritance that defined the transmission of genetic traits, earlier than absolutely everyone knew genes existed. Mendel's perception substantially elevated the information of genetic inheritance, and caused the improvement of recent experimental methods.
Gregor Mendel, via his paintings on pea plants, located the essential legal guidelines of inheritance. He deduced that genes are available pairs and are inherited as awesome units, one from every parent. Mendel tracked the segregation of parental genes and their look withinside the offspring as dominant or recessive traits.
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Who said that that population would keep growing exponentially due to uncontrolled reproduction?.
What is the difference between molecular shape/molecule geometry and electron group arrangement/electron geometry?.
Molecular geometry helps determining atoms and its configuration while electron geometry determines the configuration of electrons.
What is electronic geometry and molecular geometry and how are they different?Molecular geometry as could be understood by the term self defines laws for molecule, atoms and its configuration.The arrangement of atoms in a molecule around the central atom is stated under molecular geometry or shape.Here the question is asked of the difference in the molecular geometry and electronic geometry.The configuration of electrons around the atoms of nucleus is stated under the electronic geometry .The electronic geometry or electronic arrangement measures on an electron level which is smaller than a molecule.To know more about molecule visit:
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a diagnostic procedure to measure and record electrical activity in a muscle as the muscle is contracted and relaxed is abbreviated as a(n)
Electromyography is a diagnostic procedure to measure and record electrical activity in a muscle as the muscle is contracted as well as relaxed is abbreviated.
By stimulating a muscle with a nerve, electromyography (EMG) monitors the muscle's reaction or electrical activity. A neuromuscular abnormality can be found using the test. To evaluate the condition of muscles and the nerve cells that control them, a diagnostic procedure called electromyography (EMG) is used. According to EMG results, there may be issues with nerve-to-muscle signal transmission, muscle dysfunction, or both.
The function of the muscles and nerves is assessed using electromyography (EMG), a diagnostic procedure. The muscles are penetrated by small needles placed by the providers. The electrodes on the needles' ends track the activity of your muscles as you move them.
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If one light source displays more spectral lines than another, does that mean that it contains more elements? Explain your answer.
No, If one light source displays more spectral lines than another it doesn’t mean that it contains more elements.
What are spectral lines?A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies. Spectral lines are often used to identify atoms and molecules.
Even a single element (like Hydrogen) has different spectral lines and therefore only one element could have various spectral lines for the various energy levels of that element. These energy levels are well known to astronomers and so it is easy to understand what and how many elements there are in that spectrum of the source. Spectroscopy is a huge source of knowledge about the stars. It may have more elements, or it may simply have heavier elements, which have more electrons than lighter elements and therefore a more complicated electronic structure, which allows for a far greater number of absorption lines.
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A human skin cell has 46 chromosomes and undergoes mitosis. How many chromosomes will be present in each daughter cells when mitosis is complete?.
23 chromosomes will be present in each daughter cells when mitosis is complete.
What are chromosomes?Chromosomes are filamentous structures found in the nuclei of animal and plant cells.Each chromosome is composed of a single molecule of protein and deoxyribonucleic acid (DNA).DNA is passed from parent to child and contains the specific instructions that make each type of organism unique.Chromosomes are thread-like structures made up of single molecules of protein and DNA that carry genomic information from cell to cell.In plants and animals (including humans), chromosomes are located within the cell nucleus.Chromosomes are made up of proteins and DNA organized into genes.Each cell normally contains 23 pairs chromosomes.To learn more about chromosomes from the given link :
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drag the labels to complete each of the sentences that discuss the relationship between mhc molecules and endogenous and exogenous antigens.
MHC I antigen presentation typically involves the endogenous pathway of antigen processing and MHC II antigen presentation involves the exogenous pathway of antigen processing.
What are antigens in the immune system?Antigens are substances present on the surface of cells i.e., viruses, fungi, or bacteria. Antigens can also be non-living substances such as toxins, chemicals, drugs, and foreign objects (such as debris). An antigen is a substance that causes the immune system to produce antibodies against it. The immune system recognizes and destroys, or attempts to destroy, substances that contain antigens. This means that the immune system recognize the substance and tries to fight it off. Why is MHC called an antigen and is MHC endogenous or exogenous?The MHC gene (called the H-2 complex in mice) was first recognized in 1937 as a barrier to transplantation in mice. In humans, these genes are often called human leukocyte antigens (HLA). This is because these genes were originally discovered due to antigenic differences between leukocytes from different individuals.Class I MHC molecules (MHC-I) primarily present endogenous antigens. H. Antigens present in the cytosol and subject to cytosolic processing mechanisms, including the conventional MHC-I processing pathway. MHC II molecules associate with exogenous antigens that are internalized by endocytosis. However, exogenous antigens can also enter her MHC-I pathway of her APCs through a process called 'cross-presentation'.To learn more about antigens visit:
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What part the body help the digestive system and respiratory system works together?.
The respiratory and digestive systems both depend on the pharynx. It enables the passage of breathed air from the nasal cavity to the lungs, larynx, and trachea. The epiglottis is located in a region of the pharynx known as the nasopharynx.
The respiratory system not only aids in breathing, but also guards against the ingestion of dangerous particles through eating, sneezing, or coughing. The pharynx, also known as the throat, is a flexible muscular tube with a funnel-like form that carries air from the mouth and nose to the trachea, also known as the windpipe. Additionally, it links the esophagus and larynx to the nasal and oral canals.
The respiratory and digestive systems depend on the pharynx. It enables the passage of breathed air from the nasal cavity to the lungs, larynx, and trachea.
The epiglottis is located in a region of the pharynx known as the nasopharynx. By keeping the esophageal opening covered, the air is kept out of the digestive system.
The complete question is:
What part of the body help the digestive system and respiratory system works together?
a. Lungs
b. Nose
c. Trachea
d. Pharynx
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What is photosynthesis about 3 lines?.
Plants, algae, and some microorganisms use the process of photosynthesis to convert sunlight into energy.
Water and carbon dioxide are chemically changed into food and oxygen during the process.
The pigment chlorophyll, which gives plants their green hue, is frequently used in the chemical reaction.
Green plants and certain other organisms convert light energy into chemical energy through a process called photosynthesis.
Light energy is gathered and utilised during photosynthesis in green plants to change water, carbon dioxide, and minerals into oxygen- and energy-rich organic molecules.
The main purpose of photosynthesis is to transform solar energy into chemical energy, which is then stored for later use.
This mechanism primarily provides energy to the planet's life systems. By the norms of human engineering, it is not very effective, but it gets the job done.
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What are 6 conditions that allow bacteria to grow in food?.
Bacteria want moisture so one can grow. that is why they grow on meals with excessive moisture content such as fowl. meals that are dehydrated or freeze-dried may be stored for a whole lot longer as the moisture has been eliminated. food – meals afford electricity and nutrients for micro organism to develop.
Bacteria reproduce by way of splitting into two. This manner is known as binary fission and the time taken between every department (technology time) varies notably depending on, among different matters, temperature and the nutrients (meals) to be had.
A bacterial contamination happens when bacteria input the frame, growth in variety, and cause a response inside the frame. bacteria can enter the frame through an opening for your pores and skin, consisting of a reduce or a surgical wound, or via your airway and reason infections like bacterial pneumonia.
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Questi 21 of 32
Which of the following structures is found in both eukaryotic and prokaryotic
cells?
A. Mitochondrion
B. Lysosome
C. Cytoplasm
OD. Nucleus
SUBMIT
Plant cells contain a green pigment called chlorophyll. Chlorophyll has a role in the process of photosynthesis. What does chlorophyll do
Explanation:
Plants and other photosynthetic organisms use chlorophyll to produce light (usually solar energy) and convert it into chemical energy.
Chlorophyll amplifies blue light and some red light.
which group of proteins work in opposition to maintain the repressed and active transcription states of parent cells in daughter cells?
DNA methylation controls gene expression by either attracting proteins that are involved in gene repression or by preventing transcription factor(s) from binding to DNA.
What proteins have transcription control?Transcription factors (TFs) are regulatory proteins that bind to certain DNA regions to activate (or, less frequently, inhibit) DNA transcription. With up to 106-fold more affinity for their target sequences than for the rest of the DNA strand, TFs have distinct DNA-binding domains.
How do methyl groups influence the expression of genes?
DNA methylation controls gene expression by either attracting proteins that are involved in gene repression or by preventing transcription factor(s) from binding to DNA.
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which of the following correctly states what is occurring in this stage? chromosomes are attached to spindle microtubules and are aligned at the midpoint of the cell. spindle microtubules are starting to pull the chromosomes apart, pulling them toward the poles of the cell. chromosomes are visible, and one of the two centrosomes is starting to migrate to the other pole of the cell.
Chromosomes are threadlike structures made from protein and an unmarried molecule of DNA that serve to hold the genomic facts from cell to cell. In plants and animals (inclusive of humans), chromosomes are living within the nucleus of cells.
Two of the chromosomes (the X and the Y chromosome) determine your intercourse as male or girl while you are born. they're referred to as sex chromosomes: ladies have 2 X chromosomes. adult males have 1 X and 1 Y chromosome.
YY is not possible, due to the fact genes crucial for survival are placed on the X chromosome. (The X and Y chromosomes do not deliver best the genes that code for improvement. There are genes at the X that determine everything from cell metabolism to the formation of color receptors within the retina.)
In human beings, every cell normally carries 23 pairs of chromosomes, for a complete forty-six. Twenty-two of these pairs referred to as autosomes, look the same in both ladies and men. The twenty-third pair, the intercourse chromosomes, ranges between women and men.
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regarding the mn blood type locus: the m and n alleles code for answer on the blood cell surface. the m allele is answer to the n allele. a population was scored for the mn locus with the following results: 25% are type m, 60% are type mn and 15% are type n. what is the frequency of the m allele in this population?
The frequency for the m allele in this population is 0.5.
What is the frequency of the m allele in this population?
The Hardy-Weinberg principle states that if p and q are the allele frequencies in a population that has two alleles at a certain locus, then p 2, 2pq, and q are the anticipated genotype frequencies.
At the Hardy-Weinberg equilibrium, (p+q)² = p² + 2pq + q² = 1.
Frequency of m = p²
25/100 = p²
√25/100 = p
5/10 = p
0.5 = p
Hence, the frequency of m allele is 0.5
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What is the sequence of the 5’ end of the mrna transcribed from this prokaryotic gene?.
The correct answer is option D.
The sequence of the 5’ end of the mRNA transcribed from the prokaryotic gene is UAGA.
Messenger RNA abbreviates as mRNA is a single stranded ribosomal nucleic acid that is responsible for protein manufacturing inside body.
During the process of transcription, when a template of DNA is transcribed it leads to the formation of mRNA.
The main function of mRNA is to carry the necessary protein information from DNA to the cytoplasm of the cell where protein manufacturing machinery identifies the information and translates the sequence into a codon.
To put it simply, mRNA translates the genome sequence information through coding in DNA.
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The complete question is:
What is the sequence of the 5’ end of the mRNA transcribed from this prokaryotic gene?
a. TTGA b. UUGA c. TAGA d. UAGA
In the example in the animation, uracil is incorrectly paired with guanine. What is the effect on the dna sequence if base excision repair does not remove the uracil and dna replication is allowed to proceed?
Mutation will occur in the DNA sequence if base excision repair does not remove the uracil and DNA replication is allowed to proceed.
What occurs when DNA damage is not repaired prior to replication?DNA's stability and integrity are crucial to life since it houses each live cell's genetic information. However, DNA is not inert; rather, it is a chemical structure that can be harmed by the environment. If the damage is not repaired, it can result in mutation and even disease.
What occurs if nucleotide excision repair is unsuccessful?Base excision repair (BER) is in charge of repairing broken DNA bases, including those left over after oxidative damage, deamination, and SSBs. Point mutations may occur as a result of these lesions not being repaired.
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the red bone marrow has two different types of stem cells that can differentiate into blood cells. these stem cells are .
Two separate types of stem cells that can develop into blood cells are present in the red bone marrow. Myeloid and lymphoid stem cells make up these stem cells.
Stem cells are the building blocks from which all other cells with specific roles are derived in the body.
Lymphoblasts, a type of blood stem cell in the bone marrow, evolve into lymphocytes, mature, infection-fighting cells. The primary cells that make up lymphoid tissue, a significant component of the immune system, are lymphocytes. The lymph nodes, spleen, thymus gland, tonsils, and adenoids all include lymphoid tissue.
A type of blood cell called a myeloid cell develops in the bone marrow. A myeloid cell will assume a specific role as a basophil, macrophage, eosinophil, erythrocyte, monocyte, neutrophil, or platelet as it develops into an adult blood cell.
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which agricultural method is most similar to intercropping? integrated pest management no-till agriculture contour plowing agroforestry
The farming technique most like intercropping is crop rotation.
What type of farming practice most closely resembles intercropping?Crops are grown in the same area at the same time, a practice known as intercropping that is similar to crop rotation. Planting the crops in alternate rows or strips is the most popular method for intercropping, though there are other methods.
What does "methods" in no-till farming mean?In order to create furrows, plant seeds immediately, firm them down, and cover them with soil using the no-till farming method, special equipment (such as disc seeders or agriculture drills) is needed. In doing so, the soil is disturbed as little as possible because it is dug precisely where the seed should fall.
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Explain why a cell is matter (do not search this up please, write from your own words)
Answer:
Explanation:
A cell is matter because evrything in the universe is made up of matter with cells bing included in evreything in the universe
Which component of eukaryotic cells is critical for the correct sorting and transport of proteins?.
Protein and lipid production, processing, and movement within the cell all depend on the endomembrane system. An endomembrane system is a collection of compartments that cooperate to classify, identify, and package various proteins and chemicals.
The nuclear membrane, endoplasmic reticulum, Golgi apparatus, lysosomes, vesicles, endosomes, and plasma membrane make up the endomembrane system in eukaryotic cells. The right response is thus "Golgi bodies. "The endoplasmic reticulum (ER) ([link]) is a collection of mesh worked sacs and tubules that work together to manufacture lipids and modify proteins. The rough ER and the smooth ER, respectively, are where these two tasks are carried out in the ER. The lumen or cisternal space refers to the hollow area of the ER tubules. The nuclear envelope and the phospholipid bilayer that makes up the ER membrane are one continuous membrane.
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which of the following is associated with air that has reached 100% relative humidity? select all that apply. group of answer choices dew point temperature lifting condensation level (lcl) dry adiabatic rate (dar) saturated adiabatic rate (sar)
The option that is associated with air that has reached 100% relative humidity is the saturated adiabatic rate (SAR). Thus, the correct option for this question is C.
What is Relative humidity?Relative humidity may be defined as a measurement that signifies the level of water vapor present in a mixture of water and air as compared to the maximum possible amount. It is represented as RH.
Relative humidity also determines a ratio of the humidity ratio of a particular water-air mixture compared to the saturation humidity ratio at a given temperature.
Saturated air has reached 100% relative humidity without any differentiation in the process. So, according to the options, saturated adiabatic rate (SAR) is directly associated with the same phenomenon.
Therefore, the correct option for this question is C.
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If you wanted to find support for the idea that all living things are composed of cells, what evidence would you need to gather?.
You should collect samples of various living things and analyse them under a microscope to detect the existence of cells as evidence if you wish to find proof that all living things are made up of cells.
The smallest component of a living entity is a cell. An organism is anything that is alive, including you. Therefore, the fundamental unit of all organisms is the cell. In multicellular organisms, a number of cells of the same kind interact with one another and carry out shared functions to form tissues (such as muscle tissue, connective tissue, and nervous tissue), a number of tissues come together to form an organ (such as the stomach, heart, or brain), and a number of organs make up an organ system (such as the gastrointestinal (GI), cardiovascular (CV), or nervous systems). Together, various systems compose an organism (such as an elephant, for example).
Many different cell types can be found, and they are all divided into one of two main categories: prokaryotic and eukaryotic. Eukaryotic cells include those found in animals, plants, fungi, and protists, whereas prokaryotic cells include those found in bacteria and archaea.
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Which division of the autonomic nervous system is also known as the thoracolumbar division?.
The sympathetic division, sometimes referred to as the thoracolumbar division, is made up of preganglionic neurons that are distributed along the whole length of the spine from segments T1 to L2.
What is the purpose of the spinal cord?
The spinal cord is a long system of neurons and tissues that extends from the base of the skull to the lower back.
What is the name of one of the 26 spinal bones?
The 26 bones which build up the spine are called vertebrae. Its vertebrae (12 bones), lumbar vertebra (5 bones), united sacral (one bone), and coccyx make up the next five vertebrae in the spine after the neck spine, who make up the very first five (one bone).
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