Answer:
4 chromosomes
Explanation:
Scientists often study fruit flies because they have large chromosomes whose genes are easy to see. Every body cell of a fruit fly has 8 chromosomes. Every fruit fly gamete (sperm or egg) has 4 chromosomes.
A holdfast is a root-like structure that anchors aquatic sessile organisms, such as seaweed, other sessile algae, stalked crinoids, benthic cnidarians, and sponges, to the substrate.
Every mineral has its own unique chemical composition
The answer is B.
I just took this test, and this was the answer! I hope it helps you more then the other answer XD
Answer:
C. frameshift mutation
Explanation:
Frameshift mutation is a type of gene mutation that occurs when one or more nucleotide bases are inserted(added) or deleted (lost) from a DNA strand. This results to a shift or alteration in the reading frame of the codons in the mRNA, hence resulting to wrong placement of amino acids. This kind of mutation alters the amino acid sequence during protein translation.
Frameshift mutations result to deleterious changes amino acid sequence of a protein and can cause diseases like , Crohn's disease and some kinds of cancer.