Vestigial organs or parts of the body
are those that has lost its function in the course of evolution. These organs
or parts have degenerated or atrophied. It can appear as remaining small or
imperfectly developed. An example is the tiny eyes on an insect living in a
lightless cave.
A person's original chromosomes and their component genes constitute that person's genotype (Option a is correct).
<h3>What is a genotype?</h3>
A genotype can be defined as the genes and their variant (alleles) contian in a given nucleotide sequence of DNA, which can be represented by a linear chromosome.
The genotype may contain only a few genes in small chromosomes (e.g., plasmids) or many genes in linear human chromosomes (over more than 1000 genes).
In conclusion, a person's original chromosomes and their component genes constitute that person's genotype carried out by the individual and his/her cells (Option a is correct).
Learn more about genotypes here:
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Microtubules are long,hollow protein cylinder that form a rigid skeleton for the cell golgi apparatus
~Jurgen
Answer:
No, because cell division is expected to decrease not only the net amount of cyclin molecules in daughter cells but also the volume of these daughter cells compared to the original parent cell, and therefore the concentration should be nearly equal.
Explanation:
When a cell divides to produce two daughter cells, the cell components including its previously duplicated genetic material (DNA), organelles, signaling molecules, fatty acids (lipids), proteins, etc., are distributed into daughter cells. These daughter cells have a smaller volume compared to the original parent cell. In consequence, the concentration of cellular components (including cyclin proteins) should be similar between parent cell and daughter cells.
Answer:
Nitrogen
Explanation:
The Percentage of given gases in atmosphere:
Oxygen = O₂ = 20.95 %
Nitrogen = N₂ = 78.08%
Argon = Ar = 0.93%
Ozone = O₃ = 0.000004%
Nitrogen is most abundant gas in atmosphere while oxygen is second most abundant gas. The nitrogen and oxygen are present in diatomic form such as O₂ and N₂.
Water vapors are also present but the percentage vary according to location. In hot humid areas the percentage of water is 0- 4% and it is third abundant gas.
The percentage of other gases in atmosphere are given below:
CO₂ = 0.0360%
Ne = 0.0018%
He = 0.0005%
CH₄ = 0.00017 %
N₂O = 0.0003%
H₂ = 0.00005%
