Which statement accurately describes how identification of individuals through the use of genetic engineering is possible?
a. the dna in mitochondria is passes from mother to child in the nucleus of a cell.
b. the y chromosome doesn't experience crossing-over.
c. the mitochondria dna in a mother and her offspring vary greatly.
d. the x chromosome can only be passed from a father to his son.

Agene with the original sequence of atgtt—tact underwent substitution mutation to form atatt—tact after a few generations. tact is a part of a muscle protein encoding region, and atgtt codes for a digestive enzyme. what will be the effect of this mutation? a. the production of muscle protein will be affected. b. the production of digestive enzymes will be affected. c. the production of both the protein and the enzyme will be affected. d. the production of neither the protein nor the enzyme will be affected.

Study the diagram of a desert food chain . what would most likely happen if the kangaroo rats were killed off and removed from the food chain ?

Which is one example of a phenotypic change that is not genetic