What is the role of reverse transcriptase in DNA technologies? A. To unzip DNA strands
B. To find mRNA
C. To produce proteins
O D. To make cDNA

Which element is used in photosynthesis found in atmosphere and fixed by bacteria?

What kind of seafood would you expect to have the highest levels of mercury and why? kelp, because they use the sun to photosynthesize on the bottom trophic level. oysters, because they filter feed on plankton on a lower trophic level. small fish, because they eat plankton on a higher trophic level. sharks, because they feed on organisms on a higher trophic level.

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.