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.

Time ! for a smell to begin the process of registering in your brain, first you must a) inhale odor molecules into the nasal cavity b)transduce scent chemicals c)have a scent to inhale d)all answers can work

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.