Answer:
undergo irreversible repression
Explanation:
Cellular differentiation refers to the process by which one cell and/or cell population divides and differentiates into more specialized cells. During cell fate differentiation, epigenetic marks modify chromatin structure in order to hamper the accessibility of the transcriptional machinery and transcriptional factors to different genes, which are irreversibly repressed. These epigenetic marks include DNA methylation and histone modifications (e.g., histone acetylation, histone methylation, etc). For example, it has been shown that DNA methylation and histone H3 lysine 27 tri‐methylation (H3K27me3) are epigenetic repressive marks on genomic regions that play a major role in gene expression programs during cell fate differentiation.
In the leaf cells of a plant, enzymes control the rate at which carbon dioxide is converted into glucose. Which environmental factor would MOST affect the action of the enzyme?
Answer: The environmental factor that would most affect the action of enzymes in the conversion of carbon dioxide into glucose (photosynthesis ) is the light.
PHOTOSYNTHESIS - Photosynthesis is a process by which plants and other organisms convert light energy into chemical energy, which is then released to fuel the organism's metabolic activities through cellular respiration. Carbohydrate molecules, such as sugars, store this chemical energy, which is created from carbon dioxide and water.
The first photosynthetic species most likely arose early in the evolution of life and used reducing agents such as hydrogen or hydrogen sulfide as electron sources rather than water. In the process of carbon fixation, carbon dioxide is transformed into sugars; photosynthesis uses energy from the sun to turn carbon dioxide into carbohydrate. Carbon fixation is a redox reaction that is endothermic. Photosynthesis is the oxidation of carbohydrate or other nutrients to carbon dioxide, while cellular respiration is the reduction of carbon dioxide to carbohydrate. Carbohydrates, amino acids, and fatty acids are nutrients involved in cellular respiration.
The process of embryonic development is represented in the diagram below.
Zygote
Developing
embryo
The three arrows in the diagram each represent a process known as
1.
mitotic cell division
2.
meiotic cell division
3.
fertilization of gamete cells
4
differentiation of tissues
Answer:
1. Mitotic cell division
Explanation:
Embryonic development is the formation of organisms that starts from the process of fertilization. The stages of development represent mitosis.
What is mitosis?Mitosis is a part of the cell cycle, that produces two identical nuclei and daughter cells from the division of the cell and replication of the parent cell.
From the diploid parent cell, two diploid daughter cells are produced in mitosis. This process is the first and the initial stage of embryonic development that initiates the growth and development of the embryo from the parent cell.
Therefore, option 1. mitosis is the process of embryonic development.
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Could somebody please help me?
Select the correct answer
Which biogeochemical cycle includes the exoskeleton and shells of marine organisms as a reservoir?
A) carbon
B) nitrogen
C) sulfur
D) oxygen
Thank you! :)
Answer: The answer is Oxygen.
Using the letter "T" and "t" with Tall height being dominant over short height. A heterozygous man for height marries a heterozygous woman for height. What is the correct F1 phenotypes for this cross?
75% would be tall, 25% would be short
genotypes: TT,Tt,tt
Explanation:
Which option describes the function of RNA polymerase?
Select one:
Carrying amino acids to the transcription site.
Moving mRNA strands into and out of the nucleus.
Splitting the DNA double strand into two single strands.
Forming an RNA strand using a DNA strand as a template.
Answer:
brown
Explanation:
have you pooped today?
The option which describes the function of RNA polymerase is that it forms an RNA strand using a DNA strand as a template. Thus, the correct option for this question is D.
What is RNA polymerase?RNA polymerase may be defined as a multi-unit enzyme that synthesizes RNA molecules from a template of DNA through a process called transcription. This enzyme is responsible for copying a DNA sequence into an RNA sequence, during the process of transcription.
RNA polymerase binds to DNA, separates the strands, then uses one of the strands as a template from which to assemble nucleotides into a complementary RNA strand.
It uses a single-stranded DNA template to synthesize a complementary strand of RNA. Specifically, RNA polymerase builds an RNA strand in the 5' to 3' direction, adding each new nucleotide to the 3' end of the strand.
Therefore, the option which describes the function of RNA polymerase is that it forms an RNA strand using a DNA strand as a template. Thus, the correct option for this question is D.
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The complementary strand of DNA to the DNA fragment GGC ATA CAT is: (DNA replication)
CCG UAU GUA
GTA TAT CCG
ATG TAT GCC
CCG TAT GTA
which one ^
Answer:
CCG TAT GTA
Explanation:
In DNA replication, adenine pairs to thymine and cytosine pairs to guanine. We take the template strand and pair the correct letters (A to T, C to G).
PLZZZZZ HELPPPPPPP!!!!
Neurons have long projections to transmit impulses. What is the name of these projections?
Answer:
Answer:
Axon
Explanation:
An axon is a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body or soma.
Can I have brainliest, when someone else answers?
Answer:
I agree with the other person who answer
have a good day :)
Explanation:
Muscles cannot function without ATP. Review your knowledge of ATP by answering the followini
questions.
ATP molecules store and release_____.
Answer:
energy
Explanation:
hope it helps.
Answer:
ATP molecules store and release energy.
Energy is released when ✔phosphate bonds are broken.
edge ✅⬇️
What can we learn about the organisms on this chart? *
A. Some of the animals are monkeys
B. They are each Classified under a different Kingdom
C. They have the same scientific name
D. They are closely related
PLSS HELP ME ASAP!!
I WILL GIVE YOU BRAINLYEST!!
If a school is abandoned how will it look like in 10, 50, and 200 years from now?
What animals/plants will it have in every year?
Answer:
Well, I believe that as years go by, plants will start to grow though out the school, things will start to wear out at break down because of not having proper thinks taken care of. Probably some rabbits, mice, basically small animals will start to have homes in the school, no major animals will hang around there because it isn't their habitat.
Bacteria reproduce asexually by ...
A bee gets nectar from a flower and the flower gets help with pollination. Both benefit, so the symbiotic relationship is _______________.
Competition
Commensalism
Mutualism
Parasitism
Identify one food chain in this ecosystem.
Sun, grass, robin, worm, blue jay, woodpecker, squirrel, leaves, beetle, tree
Answer:
a tree because its a plant
What process is represented in the picture above?
In the early stages of development, the embryos of dogs, pigs, and humans resemble one
another. This observation suggests that these animals may have
A)a common ancestry.
B)a similar number of chromosomes.
C)a similar habitat requirements.
D)the same blood components.
Answer:
a common ancestry.
Explanation:
How can we tell that two species shared a common ancestor, and are therefore related?
Answer:
Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features). Similarities and differences among biological molecules
Explanation:
There are multiple ways you can tell
you can look at the bone structure of an organism and see if it's homolougous
Or use a cladogram to tell what species share a common ancestor ( hope this helps)
Explain ONE possibe advantage of vivipary when compared to
ovipary
Embryos are protected and physiologically maintained by the pregnant female.
Janile got 4 kilograms of candy when she went trick-or-treating at Halloween. Since she didn't want to eat it all, she decided to share it with her 4 friends. If the 5 of them share the 4 kilograms, how much will each of them have?
Answer:
4/5= 0.8 kg per person.......
Why cell wall is only found in plant cells
Answer:
This is because cell walls protect the cells and allow plants to grow to great heights.
Explanation:
Cells walls are made of a cellulose are only found in plant cells.
Of the phenomena that correlate with the data above, the one that is the most direct consequence of the trend in air travel is the increase in the spread of infectious diseases the increase in the spread of infectious diseases A the increase in urban sprawl the increase in urban sprawl B the decrease in biodiversity the decrease in biodiversity C the increase in hypoxic aquatic ecosystems the increase in hypoxic aquatic ecosystems D the decrease in the total fertility rate of developed nations
Answer: the increase in the spread of infections diseases
Explanation:
got it right
The increase in the spread of infectious diseases are the most direct consequence of the trend in air travel. So, the correct option is A.
What are Infectious diseases?Infectious diseases are defined as disorders that are caused by organisms such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies which are generally harmless or even helpful but some organisms can cause disease. Some infectious diseases can spread from person to person.
Infectious diseases can be viral, bacterial, parasitic or fungal infections a rare group of infectious diseases known as transmissible spongiform encephalopathy (TSE). The increase in the spread of infectious diseases are the most direct consequence of the trend in air travel.
Therefore, the correct option is A.
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Your question is incomplete, most probably the complete question is:
Of the phenomena that correlate with the data above, the one that is the most direct consequence of the trend in air travel?
A. the increase in the spread of infectious diseases
B. The increase in urban sprawl
C. the decrease in biodiversity
D. the increase in hypoxic aquatic ecosystems
E. the decrease in the total fertility rate of developed nations
What is the strand that would pair up with ATTCAAGC?
Many rain forest plants are prone to developing fungal infections on their leaves. Fungi can grow rapidly in moist environments, and a serious infection can kill plants
Answer:
Resistance plants increase in number whereas non-resistant plants decreases.
Explanation:
The environment of rain forest is suitable for the fungal growth because of the presence of humidity in the environment and we know that fungi needs moist places for its growth. These fungus attached on the leaves and takes nutrients from that plant that leads to the stunted growth and many cases death of the plant occurs. Some plants have no effect of this fungus due to the presence of resistance in them so if the fungus spreads in the whole forest so the plants which are prone to these fungal infections eliminated from that environment and resistant plants are increase in number.
Answer:
Part B
Many rain forest plants are prone to developing fungal infections on their leaves. Fungi can grow rapidly in moist environments, and a serious infection can kill plants. One rain forest plant species has a genetic variation that affects its leaf structure. The traits and the descriptions of the plant’s leaves are listed in the chart.
Explanation:
need answer quick please thanks
Can someone please help me
Will mark u brainliest !
Answer:
Letter C
Explanation:
Answer:
d i think
Explanation:
how does photosynthesis keep humans alive?
Answer:
Because photosynthesis is important to living organisms because it is the number one source of oxygen in the atmosphere.
Explanation:
So we need it to breath basically.
9 facts about the atmosphere
Explanation:
Air is mostly gas. Air is all around us, but we can't see it. ...
Air isn't just gas. ...
Air is important for living things. ...
Carbon dioxide in the air can be both good and bad. ...
Air also holds water. ...
Air changes as you go up, up, up. ...
Air is a protective cushion. ...
There is life in the air.
Using the diagram below, answer the following questions:
- True or False. The arrow labeled C represents a transfer of chemical energy to mechanical energy. Explain why this is true or false.
- True or False. The arrow labeled A represents a transfer of solar energy to chemical energy. Explain why this is true or false.
- Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?
- Which arrow or arrows indicate a process that cycles carbon from living or nonliving organisms? Describe the process or processes you selected.
- Which arrow or arrows represent reactions that demonstrate a conservation of mass and energy? Explain your answer.
Answer:
FALSE. The factory uses mechanical energy and when carbon is released into the atmosphere it is the process of chemical energy. ... Arrows C + F represent a release of carbon dioxide. Arrow C shows carbon being released into the air from the factory.Its true because the arrow letter A uses the of solar power from the sun then makes a chemical reaction to make food for the plant so basically photosynthesis. 8.arrow E represents cycling of carbon from living organisms to non-living organisms. this is because it is showing conversion of a carbon from the dead tree to fossil fuel.All the arrows in a combined form are used to show the biogeochemical cycle or the carbon cycle. In this cycle, carbon is cycled between the biotic and abiotic component of the biome. In any biogeochemical cycle, mas and energy are always conserved.
How are antibodies related to the type of blood a person can receive?
Does anyone k one what is
Answer:
If it is present, that person's blood is Rh positive (+); if not, the blood is Rh negative (-). ... For example, a Blood Group A individual has no B antigens on their red blood cells; therefore, this person's white blood cells will make antibodies against the B antigen (anti-B) that will be present in their plasma.
Explanation:
i hope this helps
A monkey is holding on to the branch of a tree with a force of 160N. What force is the tree holding the monkey up with? The monkey's mass is 16.3kg
Answer:
l think it is the force of gravity
Explanation:
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In a paragraph discuss the process of the life cycle of seedless plants.
Answer:
The life cycle of seedless vascular plants alternates between a diploid sporophyte and a haploid gametophyte phase. Seedless vascular plants reproduce through unicellular, haploid spores instead of seeds; the lightweight spores allow for easy dispersion in the wind.
hope it will help u in understanding..