In man, the gene D is necessary for normal ear cochlea and gene E is necessary for a normal auditory nerve. In the absence of either of these factors, the individual is deaf (that is ee or dd make you deaf). Do the following crosses and give the phenotypic ratios for deafness.

What does homeostasis means in biology?

What causes an unsaturated fatty acid to have a different shape than a saturated fatty acid? o a. unsaturated fatty acids have more hydrogen atoms. o b. unsaturated fatty acids have double carbon bonds. o c. unsaturated fatty acids have more nitrogen atoms. o d. unsaturated fatty acids have single carbon bonds.

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?