Answer:
Answer is C
Explanation:
Each cell has an identical copy of DNA with enzymes controlling the expression of specific genes leading to a variety of cells
The statements 'each cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells' BEST describes how different cell types develop (Option C).
Epigenetics refers to any change in gene expression that does not involve a change in the nucleotide sequence.In an organism, all somatic cells are genetically identical, thereby changes in gene expression are due to epigenetic modifications.These epigenetic modifications include DNA methylation and histone modifications (e.g., histone acetylation, histone methylation, etc).Enzymes that add specific epigenetic marks such as histone acetyltransferases alter the accessibility of transcription factors to chromatin, thereby activating or repressing gene expression.In conclusion, the statements 'each cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells' BEST describes how different cell types develop (Option C).
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Which numbered organelle produces ATP during cell respiration? 1,7,9,13
Answer:
9
Explanation:
Put the steps in the proper order to explain the flow of information from the DNA sequence to a functional protein.
1. The codon sequence in mRNA determines the amino acid sequence in a polypeptide.
2. Each codon in mRNA codes for a specific amino acid.
3. The sequence of amino acids in a polypeptide determines how the protein will fold and possibly bind with other polypeptides to form a mature protein.
4. The final structure of a protein determines its function.
5. Each three nucleotides in the gene template DNA codes for a three nucleotide codon in mRNA.
Answer:
5. Each three nucleotides in the gene template DNA codes for a three nucleotide codon in mRNA.
2. Each codon in mRNA codes for a specific amino acid.
1. The codon sequence in mRNA determines the amino acid sequence in a polypeptide.
3. The sequence of amino acids in a polypeptide determines how the protein will fold and possibly bind with other polypeptides to form a mature protein.
4. The final structure of a protein determines its function.
Explanation:
The process of gene expression follows the central dogma of biology I.e. Gene (DNA) --> mRNA ---> Protein. The process of gene forming mRNA is called transcription while the process of mRNA forming protein is called translation.
Based on this, the order of the flow of information from the DNA sequence to a functional protein is:
- Each three nucleotides in the gene template DNA codes for a three nucleotide codon in mRNA (transcription).
- Each codon in mRNA codes for a specific amino acid.
- The codon sequence in mRNA determines the amino acid sequence in a polypeptide (translation).
- The sequence of amino acids in a polypeptide determines how the protein will fold and possibly bind with other polypeptides to form a mature protein.
- The final structure of a proteiin determines its function.
The order is 'three nucleotides in DNA codes for a codon', 'each codon codes an amino acid', 'codon sequence determine amino acid sequence', 'amino acids determine protein folding' and 'final protein structure determines its function'.
During gene transcription, a fragment of DNA referred to as 'gene' is used as a template to create an mRNA, which is then used to synthesize a polypeptide.
The triplets of nucleotides or 'codons' in the mRNA sequence determine the amino acid sequence in the nascent polypeptide chain.
The synthesized protein is then folded in the endoplasmic reticulum (ER) and thus adopts its three-dimensional (3D) conformation.
Protein folding is achieved by specific proteins called chaperones that help to correctly fold the protein, which adopts a mature conformational active state.
In conclusion, the order is 'three nucleotides in DNA codes for a codon', 'each codon codes an amino acid', 'codon sequence determine amino acid sequence', 'amino acids determine protein folding' and 'final protein structure determines its function' (order 52134).
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Please help it’s urgent!!!!
Answer:
The first answer
Explanation: “add Energy from the form of heat to get a change in the state of matter”
One goal of scientists is to assign every organism a universally accepted name according to the system known as
Answer:
Binomial Nomenclature
Explanation:
Karl Line is the creator of the binomial nomenclature, which leads to uniqueness in naming plants and categorizing plants into classes, orders, genders, and species.
Binomial nomenclature in biology denotes the official method of naming species. As the word itself suggests, the scientific name is formed by a combination of two expressions: the name of a genus and a species.
what risk does liquefaction pose during an earthquake?
Answer:
It can turn loose soil into a liquid during an earthquake. supports of buildings, bridges, pipelines, and roads, causing them to sink into the ground, collapse or dissolve.
Explanation:
A cold front often brings intense weather changes such as thunderstorms while a warm front often brings light rain or drizzle. Why is this the case?
Answer:
The front term is associated with an area where two air masses met and as it is usually the condition with heavy rain, fierce wind, snow and other violent weather like a war situation. The front could be warm, cold, occluded or stationary depends on the type of weather.
The cold front is associated with lots of thunderstorms and other intense weather while the warm front changes with drizzly rain and warmer weather due to the fact that in a cold front, replacement of warm air by the cold air is faster while in a warm front, the replacement of cold air by warm air is gradual
You are given a protein with the following amino acid sequence:
methionine (nonpolar)-glycine (nonpolar)-serine (polar)-alanine (nonpolar)-lysine (polar)
If an amino acid substitution occurred in this polypeptide chain, predict which option would have the most
significant impact on the structure and function of the protein.
a. Serine is replaced by lysine (polar)
b. Glycine is replaced by alanine (nonpolar)
c. Alanine is replaced by leucine (nonpolar)
d. Lysine is replaced by tryptophan (nonpolar)
?
Answer:
d. Lysine is replaced by tryptophan (nonpolar)
Explanation:
Amino acid substitutions can have varying affects on the protein function, depending on the specific substitution and the location of the substitution.
If the substitution occurs in an important region, for example an enzyme active site, then the function of the protein could be destroyed.
Additionally, if the substitution replaces the amino acid with a highly different amino acid with different properties (eg. polarity), it could alter the structure and function of the protein.
Replacing lysine (polar) with a tryptophan (non-polar) changes the properties of the amino acid at that location, whereas the other substitutions do not.
Write a food chain from this food web with six trophic levels.
Link In Comments
Answer:
where is the link I didn't see in comments
Which of the following is a frameshift mutation from the original DNA of CGCATTGGA?
a. CGCATTGGA
b. CGGCATTGGA
c. CGCATTGGT
d. GGCATTGGA
Answer: b.
Explanation:
Cgc,att,gga - original
cg(g)c,att,gga. Frame shift
cgc,att,gg(t) snp
(g)gc,att,gga snp
Why is VRBA (Violet red bile agar) only pasteurized rather than sterilized prior to use?
Answer:
Explanation:
This is because Violet and red bike is only a selective medium that detect and analyse lactose coliform microorganisms that cause fermentation and this is present in diary products like milk. This is milk use for microbiological analysis of milk because of it ability to detect lactose which is a milk sugar. There fore it cannot be use for sterilization.
please help me with this question:)
What type of cells are produced during meiosis?
Answer:
gamete cells :)
Explanation:
hope this helps
Haploid cells are produced during meiosis.
Identical haploid daughter cells are produced from diploid parent cell.This process is required to produce egg and sperm cells for s exual reproduction.What is meiosis?Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for s exual reproduction.Cell division occurs twice during meiosis, one starting cell can produce four gametes.In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase.To know more about meiosis here
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Digestion and breathing are _____. controlled by ganglia and plexus reflexive actions controlled by the spinal cord voluntary actions controlled by the central nervous sytem
Answer:
The correct answer is - reflexive actions controlled by the spinal cord.
Explanation:
Digestion and breathing are examples of involuntary action which is controlled by the autonomic nervous system of the CNS. however, the part of the nervous system that controls is the spinal cord and hind brain by the spinal reflex actions.
These are the action they do not require any thought and work without any thought that leaves the brain for other actions and coordinations. specific but the same stimuli causes the response in the same way.
Which of these zones of the ocean is deepest?
A. Abyssopelagic
B. Epipelagic
C.Hadalpelagic
D. Bathypelagic
hadalpelagic is the zone of the ocean is deepest.
how is a bacterium different from ours
Answer:
Viruses are tinier than bacteria. In fact, the largest virus is smaller than the smallest bacterium. All viruses have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can't survive without a host.
Explanation:
Answer:
Viruses are tinier than bacteria. In fact, the largest virus is smaller than the smallest bacterium. All viruses have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can't survive without a host.
Explanation:
what is the major biomolecule of cell membrane?
Answer:
hope it helps...
Explanation:
The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipids and proteins. A phospholipid is a lipid made of glycerol, two fatty acid tails, and a phosphate-linked head group.
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Which choice below is an example of humans modifying the physical environment?
Farmers clearing land to plant
Transportation improvements
Commercial development
Industrial development
Which molecule is a high energy output of photosynthesis
All of the phases of mitosis may be observed on one whitefish blastula or onion root tip slide. a) true b) false
Answer:
its true
Explanation:
Genetics is the study of genes and their inheritance.
True or False
Answer: I thinks it’s true.
Explanation:
Answer:
True.
Explanation:
A study was conducted to understand the factors controlling the rate at
which molecules or ions travel across cell membranes. An artificial
membrane was created that was composed of a phospholipid bilayer only.
The speed at which various substances crossed this membrane was
measured. Some substances can pass through an actual cell membrane
much faster than they passed through the artificial membrane in this study
Which of the following statements best explains this finding?"
a) Actual cell membranes have a much thicker phospholipid bilayer than the artificial
membrane does
b) Actual cell membranes have a variety of proteins embedded in the membrane that are
absent in the artificial membrane
c) Hydrophobic substances spend more time between the two layers of phospholipid in
the artificial membrane than they do between the layers in an actual membrane
d) Hydrophilic substand spend more time attached to the polar region of the
phospholipids in the artificial membrane than they do attached to the polar region of
the phospholipid in an actual membrane
Answer:
b) Actual cell membranes have a variety of proteins embedded in the membrane that are
absent in the artificial membrane
Explanation:
Which phrase describes an ecosystem?
A) a population of fish in a small lake
B) the wood of a rotting log
C) an entire desert, including abiotic and biotic factors
D) the community of organisms within a desert
Answer:
an entire desert, including abiotic and biotic factors
Explanation:
A ecosystem is a place where living things live.
Hope this helps <3
I've been stuck on this for a while, any help?
Explanation:
wheres the question? haha๑๑
What values or parameters can you adjust in this computer model?
Hi, you've asked an incomplete question. However, I provided some information about what a computer model does.
Explanation:
Remember, a computer model in simple terms is a representation of a real-life process or system using a computer. In other words, the computer model is a virtual representation of reality.
For example, weather forecasters often make use of computer models in other to predict changes in weather by taking note of certain values or parameters.
Answer:
You can adjust the type of fluid used, the amount of the fluid, and the amount of water.
Explanation:
PLATO
Which is the overall purpose of the excretory system? extracting energy from food removing wastes from the body moving nutrients through the body gathering information
Answer:
removing wastes from the body
Explanation:
Excretory system is one of the organ systems in our body. The excretory system encompasses all the organs in the body associated with the function of REMOVING WASTES FROM THE BODY, which represents the primary function of the excretory system.
These organs in the excretory system which include; kidney, skin, lungs etc. all functions to remove one waste or the other. For example, the kidney removes URINE, the skin removes SWEAT, the lungs remove C02.
Answer:
removing wastes from the body
Explanation:
edge 2021
Which division has a single preganglionic neurons with many axon collaterals that forms 20 or more synapses with postganglionic neurons?
a. sympathetic motor division
b. parasympathetic motor division
c. sympathetic sensory division
d. parasympathetic sensory division
Answer:
i believe its c
Explanation:
A single sympathetic preganglionic fiber has many axon collaterals and may synapse with 20 or more postganglionic neurons.
The postganglionic axons typically terminate in several visceral effectors and therefore the effects of sympathetic stimulation are more widespread than the effects of parasympathetic stimulation.
What term is used to describe the number of individuals moving into a population?
HELPPP ITS DUE IN A HOUR!!!
Answer:
below
Explanation:
Radiation Transfer which is the fission of atoms, and conduction, which is the solidarity of atoms
How can we conserve energy and instead of wasting energy?
Answer:
Adjust your day-to-day behaviors.
Replace your light bulbs.
Use smart power strips.
Install a programmable or smart thermostat.
Purchase energy efficient appliances.
SOMEONE PLZ HELP!!!!!!!!!
Answer:
the central vacuole.
Explanation:
the vacuole is responsible for discarding waste within the cell.
Answer:
central vacoule because it is just like a vacum :)
Explanation: