I think 1 is C and 2 is A
The three chromosomal aberration:
1.) Inversion - breakage of chromosome in two places , the other piece of DNA is re- inserted into the chromosome.
2.) Translocation - the one piece breaks off and attaches to another chromosome.
3.) Deletion - the loss of segment of chromosome.
-ace
The two strands of a DNA molecule have complementary base pairs, the nucleotide sequence of each strand automatically supplies the information needed to produce its partner.
an agent, such as radiation or a chemical substance, which causes genetic mutation.
Answer:
known as a system...
Explanation:
digestive system, pulmonary ststem,,....etc.
