Mutation resulting from changes in a single gene is called Gene mutation.
- A gene variation is an alteration to a gene's DNA sequence that takes place throughout time.
- Gene variation is regarded to be a more accurate word for this sort of genetic change than gene mutation since changes in DNA do not necessarily result in illness.
- Gene variations can be acquired from one's parents or develop naturally over time.
- Inheritable variations are present in almost all of a person's cells throughout their lifetime and are transferred from parent to kid.
- Non-inherited variations appear at some point in a person's life and are found in just a subset of the body's cells, not all of them.
- Non-inherited variations are sometimes referred to as somatic variants since they generally arise in somatic cells.
So we can conclude that a gene variation is a change in a gene's DNA sequence that occurs over time; it is thought to be a more appropriate term for this type of genetic change than gene mutation because DNA variations do not always cause disease, it also resulting from changes in a single gene.
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C) stomata
Each stoma is surrounded by two guard cells, which can open/close depending on environment. When there is moisture, the guard cells swell with water, and force the stoma to open and allow gas exchange to occur.
Yes, as long as both parents are heterozygous with recessive alleles of white flowers and green seeds. In this case, the ratio of chance of resulting purple flower yellow seed to white flower green seed will be 3 :1.
However, if both of the flowers are homozygous, which means they only have purple flower and yellow seeded allels, or even one is, the result is not possible, because we know that purple flowered and yellow seeds are dominant as both plants has these characteristics expressed.
B d is the correct answer
There are many factors to look for to determine a living organism. such as Nutrition, Reproduction, Sensitivity, Growth, Movement, Respiration, and Excretion.
TBut the most important that you can apply to all living organisms, even viruses are: Reproduction (it use the host to increase their number) and nutrition (it take energy from the host to replicate itself).
