Answer:
<h2>
certain genes being expressed in some cells and not in others</h2>
Explanation:
The DNA is present in every cell of the multicellular organism but that does not mean that every cell will perform the same function.
The function of the cell is decided during the cell differentiation phase the function of the cell is determined by the expression of specific genes. Expression of these genes controls the functions of the cell.
In the given question the differences in the structure and function of the brain and kidney arise due to different expression of genes in different cells.
Thus, the selected option is the correct answer.
D. <span>Only in the absence of dominant genes for the same trait.
Recessive genes are absent of something, so both genes have to be absent of that particular trait.</span>
Click what?? can you maybe organize the steps for it to be easier for me to answer?
Highly conserved genes are important for normal function of the organism of every species from prokaryotes to eukaryotes. So such genes do not mutate easily and are highly preserved.
https://socratic.org/questions/what-does-it-mean-for-a-gene-to-be-highly-conserved
Hope this helped!!
~xox Melis
C. Survive on its own.
I hope this helps, please Brainliest me, and have a fantastic day! :D
