Option A: Assembly of new nucleosomes is carried out by complexes abbreviated CAF.
CAF stands for Chromatin Assembly Factor. It forms the protein complex that moderates the assembly. It is essential to keep the synthesized DNA in a stable form. It is responsible for assembling the new nucleosomes in the DNA molecules. A nucleosome is a basic structural unit of DNA packaging in the cells.
Eukaryotic DNA is packed with proteins in the form of chromatin fibers. This chromatin structure packed with proteins is re-established during each cell cycle. DNA comprises histones, the proteins that provide structure to the nucleosome. The CAF introduces these histones onto newly synthesized DNA.
One of the two subunits of CAF-1 in humans is known as p150. It targets the CAF1 to the replication fork of DNA through protein-protein interactions with the help of Proliferating Cell Nuclear Antigen (PCNA).
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How did mendel’s monohybrid cross with round and wrinkled seeds and other single traits tested, directly contradict the blending hypothesis?.
In contrast to what blending theory would suggest, the F1 progeny of the cross between round and wrinkled pure breed cell lines had only round seeds.
In a monohybrid cross, neither allele is blended; both alleles are expressed in the F2 generation
What is the Monohybrid Cross crossing system?Two homozygous individuals with the opposite phenotype for a certain genetic trait make create a monohybrid cross. A cross between two monohybrid features (TT and tt) is referred to as a monohybrid cross. One gene is passed on by the monohybrid cross.
Heterozygotes do not display the characteristic linked to the allele. The genes that Mendel studied are either spread across various chromosomes or act as though they are.
The fact that each gamete only contains one allele serves as the foundation for the law of segregation.
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When is an earthquake most likely to occur?
A.when the earth’s plates pull away from each other
B.when the earth’s plates slide past each other
C.when the earth's plates slide beneath one another
D.when the earth's plates stay in place
Cell division and cell growth are controlled in multicellular organisms. What is an example of this control?
The skin
The digestive tract
The heart
The nose
A high-mass star near the end of its life undergoes successive cycles of energy generation within its core in which gravitational collapse increases the temperature to the point where a new nuclear fusion cycle generates sufficient energy to stop the collapse. This process does not work beyond the silicon-fusion cycle that produces iron. Why is this?"".
A high mass star will not be able to generate enough energy beyond the silicon fusion cycle to stop its collapse because iron fusion doesn't generate excess energy and gas pressure to prevent the core from collapsing. Instead, it requires additional energy.
A high mass star or massive star is a star that is more than 8 times the mass of the sun. For nuclear fusion to continue to occur in such a star, two things are needed, high temperature and pressure. The more temperature and pressure a star has, the more likely it is able to fuse heavier elements like silicon and iron.
Towards the end of the life cycle of a massive star, it starts to fuse silicon, forming iron atoms. These heavy iron particles remain at the core of the star without undergoing any further nuclear fusions. This is because iron has a too much positively charged protons in its nuclei, which causes it to repel the protons in other smaller nuclei like helium, preventing nuclear fusion. Thus, more energy is needed for iron fusion to occur and doesn't give back excess energy or any gas pressure to prevent the core from collapsing, leading to a supernova.
Hence, the reason why nuclear fusion does not work beyond the silicon fusion is that iron fusion requires energy and does not produce any gas pressure.
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Salivary cells produce amylase, which is a type of protein, what type of cell structure will they have a lot of?
Salivary cells produce amylase, which is a type of protein, the type of cell structure will they have a lot of acinar cell.
Define amylase.An enzyme or particular protein called amylase aids in the digestion of carbohydrates. Your salivary glands and pancreas produce the majority of the amylase in your body.
Your blood and urine should include a little quantity of amylase. However, having too much or too little can indicate a problem with the pancreas, the salivary glands, or another health issue.
Define salivary gland.Mammal salivary glands are exocrine glands that create saliva via a network of channels. Along with hundreds of minor salivary glands, humans have three pairs of main salivary glands: parotid, submandibular, and sublingual. There are three types of salivary glands: serous, mucous, and seromucous (mixed).
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Which statement describes the general pattern of winds near the equator?
Answer:
Winds are generally weak because the equator is a region of mostly low air pressure.
Near the equator, the trade winds converge into a broad east to west area of light winds. The area is known as the doldrums because there are light winds.
Explanation:
Onsidering that gluconeogenesis requires a net input of 4 atp equivalents compared to glycolysis, why would a cell utilize this pathway, ie., what is the metabolic advantage of this pathway?
The process by which organisms create sugars (specifically glucose) from non-carbohydrate precursors is known as gluconeogenesis.
The only energy source used by the brain, testes, erythrocytes, and renal medulla is glucose, with the exception of ketone bodies during fasting. There are three highly exergonic stages in glycolysis. Hexokinase, phosphofructokinase, and pyruvate kinase are among the enzymes involved in these additional regulatory stages. In biological processes, both forward and backward reactions are possible. Similar to glycolysis, but with the process going the other way, is gluconeogenesis. Fructose-1,6-bP, glucose-6-P, and pyruvate all undergo fairly spontaneous conversions in the process of gluconeogenesis, which is why these reactions are tightly controlled.For the organism to function properly, energy conservation is crucial. Gluconeogenesis is suppressed when there is an abundance of energy available.Therefore, gluconeogenesis conserve more energy.
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A chromosome has a gene sequence of jklmnop. a mutation of the chromosome results in a gene sequence of jklop. this type of mutation is best described as a ______.
This decribes the point mutations.
What is the difference between point mutation and chromosomal mutation ?Point mutation occur when a nucleotide is swapped for another nucleotide and can be missense , non sense or silent mutations. Chromosomal mutation occur when an abnormal number of chromosomes.
Point Mutation is a genetic alterations caused by the substitution of a single nucleotide for another nucleotide.
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The photosynthetic pigment found within plant cell chloroplasts is called:
a) bacteriophyll
b) chloroplast
c) carbohydrates
d) chlorophyll
Answer:
The photosynthetic pigment found within plant cell chloroplasts is called d) chlorophyll.
What type of information is often transferred directly through conjugation between bacterial cells?
DNA is often transferred directly through conjugation between bacterial cells.
In bacteria, conjugation is a process through which bacteria transfer their DNA - genetic material from one bacterium to another.
In this process, one bacteria is the donor, and the other is the recipient of the genetic material.
The material is transferred either through a bridge-like connection or by a cell-to-cell connection.
The donor bacterium contains the material of fertilization or the fusion of male and female gametes.
To put it simply, the process of conjugation is not only vital for the evolution of bacteria but also for a human good cause.
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Cells lining the gut need to take in glucose, but at a certain time, the concentration of extracellular glucose is lower than the concentration already stored in the cells. What process is needed here?.
Cells lining the gut need to take in glucose, but at a certain time, the concentration of extracellular glucose is lower than the concentration already stored in the cells. Active transport.
By using cellular energy, active transport involves transporting molecules across a cell membrane. Passive transport is an alternative to active transport that solely moves molecules using kinetic energy.High concentrations of substances the cell needs, like ions, glucose, and amino acids, are typically accumulated during active transport.Active transport examples include the uptake of glucose in human intestines and the uptake of mineral ions into plant root hair cells.Active transportation is divided into two categories: Primary (direct) active transport entails using metabolic energy (such as ATP hydrolysis) directly to mediate transfer. Coupling a molecule with another while it travels through an electrochemical pathway is known as secondary (indirect) active transport.
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Who is the person that proposed the system of binomial nomenclature for identifying species of organism?.
Carl Linnaeus is the person that proposed the system of binomial nomenclature for identifying species of organism.
Another Swedish botanist, Carl Linnaeus (also known as Carl von Linné), who was born more than 100 years after the Bauhin brothers' deaths, is frequently credited with developing the binomial nomenclature system. In actuality, Linnaeus took these ideas and formalized their work by publishing Systema Naturae in 1735, which included a catalog of about 10,000 species, including 6,000 plants and 4,236 animals. The first work to consistently use the binomial nomenclature system, which consists of what Linnaeus called a "trivial name" followed by a generic name, was Linnaeus' 1753 publication Species Plantarum. The quaint name is now known as the species' particular epithet or name.
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Answer:
Explanation:
Carl Linnaeus
The system of binomial nomenclature was introduced by Carl Linnaeus.
Somatic neurons and autonomic preganglionic neurons release the neurotransmitter acetylcholine from their axon terminals. True or false
Somatic neurons and autonomic preganglionic neurons release the neurotransmitter acetylcholine from their axon terminals. - TRUE
The peripheral nervous system has acetylcholine neurons in every area. Acetylcholine is released into skeletal muscle by motor neurons in the somatic nervous system.Since they terminate in skeletal muscle, they are often referred to as motor neurons. They are just excitatory, that is, they only cause the muscle to contract, and they release the neurotransmitter acetylcholine within the muscle fibers.Acetylcholine is released when an action potential is conveyed to the axon terminal, where depolarization causes voltage-gated calcium channels to open and enable an influx of calcium, which then permits the release of acetylcholine-containing vesicles into the synaptic cleft.learn more about Somatic neurons here: https://brainly.com/question/12844785
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Specimens that are brought into an office and handed to the receptionist should be?
Specimens that are brought into an office and handed to the receptionist should be Handled using standard precautions.
The use of specimens that have not been properly collected, labeled, handled, or stored before and throughout the testing process compromises or even negates the validity of the test, according to a fundamental concept for all laboratory test procedures.1. When gathering and handling laboratory specimens, always use gloves and any other protective barriers that are recommended. 2. Put every laboratory sample in the proper primary container that is leak-proof (e.g. vacutainer tube, specimen cup, etc.). Always take general safety precautions when working with specimens. Wear the proper safety gear, including clothing and personal things. Never handle a tissue with bare hands, not even one made of fixed substance. The presence of hazardous substances in the laboratory must be remembered.learn more about specimens here: https://brainly.com/question/6814369
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The differences between two molecules include the type of sugar that forms a section of the
molecules and the identity of one of the four nitrogenous bases that make up another section
of the molecules
RNA and DNA - Nucleic Acids. They contain instructions for a cell's proper operation as well as the genetic code for that cell. Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are the two primary forms of nucleic acids .
All living things, from single-celled bacteria to multicellular animals, have DNA as their genetic makeup. Protein synthesis is primarily carried out by RNA, the other kind of nucleic acid. Nucleotides are the monomers that make up DNA and RNA. A polynucleotide, such as DNA or RNA, is created when the nucleotides unite. The three parts that make up each nucleotide are a nitrogenous base, a pentose (five-carbon) sugar, and a phosphate group. A nucleotide's nitrogenous bases are each joined to sugar molecules that are joined to phosphate groups by sugar molecules.
Nitrogenous base: A nitrogen-containing molecule with base-like chemical characteristics.
Nitrogenous bases found in DNA,
Adenine (A)Guanine (G)Thymine (T)Cytosine (C)With one exception, the nitrogenous bases found in RNA
Adenine (A)Guanine (G)Uracil (U)Cytosine (C).Learn more about Nitrogenous base
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The mycorrhizae were important to the evolutionary success of terrestrial plants in conquering the land because they help the plants take in minerals such as?.
Mycorrhizae help plants to take in minerals such as phosphate and other soil minerals, including zinc and copper.
Mycorrhizae is a symbiotic relationship that some plants' root systems have with fungi. The fungal hyphae either surround the developing roots in a dense network or enter the root cells. The fungal hyphae's large surface area aids in increasing the soil's ability to absorb water and minerals. They receive sugar and nitrogenous compounds from the host plants in exchange. Some plants must participate in the mycorrhizal association. For example, Pinus seeds do not sprout and grow without mycorrhizal fungi.
What are types of Mycorrhizae?
Endomycorrhizae and ectomycorrhizae are the two different types of mycorrhizae.
Endomycorrhizae is a type of mycorrhiza that embed mycelium within the root tissue instead of forming a sheath around the plant roots, which is known as a mantle from which the hyphae grow. Ectomycorrhizae are a type of mycorrhiza that do the opposite.
Endomycorrhizae is found in the roots of most terrestrial plants and is characterized by mycelium that is embedded within the root tissue as opposed to forming a sheath around it.
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The perception pathway corresponds to the _____ pathway, while the action pathway corresponds to the _____ pathway.
The perception pathway corresponds to the "what" pathway, while the action pathway corresponds to the "where" pathway.
What: temporal lobe; ventral pathwaywhere: dorsal pathway: parietal lobe, spacial orientationA suggested structure of the visual system based on neuroanatomical, electrophysiological, and lesion investigations is known as the "what and where pathways." It defines two information processing streams that come from the occipital cortex and display relative specialization in object recognition and spatial vision.
The dorsal stream flows to the parietal cortex, and the ventral stream goes to the temporal cortex (where). According to the currently accepted theory, the various maps are organized hierarchically into two main pathways: the ventral stream, also known as the "what" pathway, which is involved in recognition and memory, and the dorsal stream, also known as the "where" pathway, which is involved in action programming.
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Pretend that the stomatal density is equal across a leaf that is 20cm^2 in size. If you count 46 stomata in a fov that is 2,009,600μm^2, how many stomata would be on the entire leaf?.
The number of stomata on entire leaf is 45780 stomata
How many stomata would be on the entire leaf?Since the stomatal density is equal across a leaf that is 20cm² in size. If you count 46 stomata in a fov that is 2,009,600μm².
Since the stomatal density is equal across the leaf, we have that
number of stomata on leaf/area of leaf = number of stomata in fov/area of fov
Given that
area of leaf = 20 cm² = 20 × 10⁸ μm², number of stomata in fov = 46 and area of fov = 2,009,600μm²So, the number of stomata on the leaf is given by
number of stomata on leaf = number of stomata in fov/area of fov × area of leaf
Substituting the values of the variables inbto the equation, we have
number of stomata on leaf = number of stomata in fov/area of fov × area of leaf
number of stomata on leaf = 46/2,009,600μm² × 20 × 10⁸ μm²
= 920/2,009,600μm² × 10⁸ μm²
= 0.000457803 × 10⁸ stomata
= 45780.3 stomata
≅ 45780 stomata
So, the number of stomata on entire leaf is 45780 stomata
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An action potential in a particular cell has the same amplitude, same duration, and same shape every time. True or false?.
This statement is true. An action potential in a particular cell has the same amplitude, same duration, and same shape every time.
When the membrane potential of a particular cell site rapidly increases and decreases, an action potential happens. Following this depolarization, nearby areas also experience depolarization.Nerve signals known as action potentials. In order to deliver these signals to the target tissues, neurons produce and carry them along their processes. They will either be activated, inhibited, or regulated in some way upon stimulus.A sufficient electrochemical value must be present in the appropriate stimulus for the nerve cell's negativity to be reduced to the action potential threshold. There are subthreshold, threshold, and suprathreshold stimuli in this way.An action potential cannot be induced by subthreshold stimuli. The energy or potential of threshold stimuli is sufficient to cause an action potential. Action potentials are also produced by suprathreshold stimuli.Therefore, the statement is true.
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Gabe has taken a summer job with his father's logging company. Their first job will be cutting down trees in 15 acres
of state forest at the edge of town. After they are finished logging the area, volunteers with the forest service will be
planting new trees to replace the ones that are cut down. What process will Gabe be taking part in with his father's
logging company?
O
silviculture
secondary succession
O
manipulative management
O
custodial management
Secondary succession process will Gabe be taking part in with his father's logging company.
When a place is disturbed but not severely enough to completely clear it of all plant and soil, secondary succession happens. Secondary succession can be started by a variety of disturbances, including fire, floods, windstorms, and human activity (such as cutting of forests). The circumstances that surround primary succession are very different from those faced by secondary succession pioneers. Secondary successions frequently begin in resource-rich environments marked by abundant light and little competition for nutrients and moisture. Disturbances may also be transient; for instance, gaps in forest canopies may close as the crowns of nearby trees enlarge and as understory seedlings and saplings respond to increased light by growing upward.
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Answer: The correct answer is silviculture
Explanation: Silviculture is the management of trees by controlling forest growth, health, and composition. This includes the replanting of trees after logging has cut down trees within a given area.
What is the significance of producing isolated bacterial colonies on an agar plate?.
Isolated bacterial colonies are significant because it helps to better understand the physiological and pathogenic roles of that specific isolated bacterial colony. It will be a pure culture devoid of any other external contaminants.
What are pure culture?A pure culture can be isolated using special media containing specific chemical or physical agents that allow for the enrichment or selection of one organism over another. In microbiology, a pure culture is a laboratory culture that contains only one species of organism. A pure bacteria culture contains only one type of bacteria. Pure cultures can be obtained using a variety of methods, including the Streak Plate Method, the Pour Plate Method, the Spread Plate Method, Serial Dilution, and the Enrichment Culture Method. These methods allow us to study a single species without fear of contamination from other organisms. Pure cultures can be kept at 0-4°C in refrigerators or cold rooms. When necessary, we can create subcultures.To know more about pure culture:
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The principle used to determine whether an allele is experiencing evolution is called:_________
The principle used to determine whether an allele is experiencing evolution is called the - Hardy- Weinberg law of equilibrium.
What is an allele?Garden pea flowers can be purple or white in color. The gene that codes for this trait, which produces a purple pigment, comes in two forms: allele for purple color and allele for white color. An allele is a variant or variants of a DNA sequence at a specific genomic location.Each person inherits two alleles, one from each parent.If the two alleles are the same, the individual is said to be homozygous for that allele.The person is heterozygous if the alleles differ. Alleles influence an organism's phenotype, or outward appearance. Certain alleles are dominant, whereas others are recessive.To know more about allele:
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HELP ASPPP I WILL GIVE BRAINILEST TO WHOEVER IS CORRECT
Answer:
7,2,3
Explanation:
Elements present in a group has the same valence.
Elements in the same group has same chemical properties but vary in physical properties.
The vertical column of elements are numbered 1-8
Which component of the blood is a part of the body’s immune system
Answer:
White blood corpuscles
Explanation:
The are made in the bone marrow along with red blood corpuscles. It moves along blood and into tissue looking for bacteria, fungi, parasite, virus etc., to destroy.
What is the most helpful feature in differentiating the mucormycetes (zygomycetes) from the other hyaline molds in the clinical mycology laboratory?
(4) The formation of aseptate hyphae is the most helpful feature in differentiating the mucormycetes (zygomycetes) from the other hyaline molds in the clinical mycology laboratory.
The Zygomycetes are the only organisms that can produce spores inside of sporangia.
Zygomycetes are known for producing rhizoids and aseptate hyphae, however not all species of these fungi exhibit these traits consistently or at all stages of maturation. Only Rhizopus and Absidia species consistently produce rhizoids, and when the colonies develop, particularly in the sporangiophores, there may occasionally be septations visible in the hyphae of each of the Zygomycetes.
Although many strains of Aspergillus species and other hyaline fungi can grow during the span of two to three days, the Zygomycetes are among the fungi with the fastest growth rates.
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Question correction:
The most helpful feature in differentiating the Zygomycetes from the other hyaline molds in the clinical mycology laboratory is:
Please select the single best answer
Rapid growth rateThe production of spores within sporangiaThe production of rhizoidsThe formation of aseptate hyphaeWhat happens to an onion cell after being in salt water then moved to pure water
Answer:
Vacuole within the onion cell expands, pushing the cytoplasm outwards
Explanation:
If an onion cell that is placed into an external solution whose solute concentration is lower (hypotonic), i.e. having less salt, than that of the cytosol (because it had previously been in a salty solution), the vacuole within the cell will expand, pushing the cytoplasm outwards.
what is one place on Earth where water
stays for a long time before changing or moving somewhere else?
Lakes
Atmosphere
Ocean
Ground
Plants
help me please
Which answer choice ranks the terms from the smallest to the largest amino acid chain?
Amino acids are the compounds or building blocks that make up peptides and proteins. Each amino acid is structured from an amino group and a carboxyl group bound to a tetrahedral carbon. This carbon is designated as the α-carbon (alpha-carbon).
The answer choice of alpha carbon ranks the terms from the smallest to the largest amino acid chain as amino acids differ from each other with respect to their side chains, which are referred to as R groups. The R group for each of the amino acids will differ in structure, electrical charge, and polarity.
The hydrophobicity index is a measure of the relative hydrophobicity, or how soluble an amino acid is in water. In a protein, hydrophobic amino acids are likely to be found in the interior, whereas hydrophilic amino acids are likely to be in contact with the aqueous environment.
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Which of the following determines how we interpret language? a. culture and location b. context and education c. culture and education d. context and culture Please select the best answer from the choices provided A B C D
Answer:
Culture and education determine how we interpret language.
Explanation:
Give me brainliest if that helped :)
Several species of Anolis lizards live in the same types of tree and have a similar diet. Discuss resource partitioning to explain how interspecific competition is reduced
Resource partitioning is an ecological mechanism where two or more different species differentiate in ecological niches in order to coexist in the same region, which is in this case exploited by Anolis species.
What is resource partitioning?Resource partitioning can be defined as an ecological process in which similar species develop certain adaptations to cohabit a given geographic area, thereby having different niches but living in the same region.
In this case, Anolis species live in the same area and also eat the same resources but they have adapted to cohabit by avoiding any type of harmful competition and thus coexist.
In conclusion, resource partitioning refers to an ecological phenomenon where two or more species differentiate in their niches to cohabit in the same region, which is in this case exploited by Anolis species.
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