A mother has a blood type a and her son has a blood type o. Which blood types are possible for the father?

26. A dominant gene, A, causes yellow color in rats. The dominant allele of another independent gene, R, produces black coat color. When the two dominant genes occur together (A-R-), they interact to produce grey coat color.

How many human chromosomes could fit into a single bacterial cell?

Hemoglobin is a protein that binds to oxygen. It is only produced by red blood cells and it allows blood to transport oxygen throughout the body. What statement does this information best demonstrate?

A dogs phenotype can determined by

Describe the process of inhalation and exhalation with regard to the contraction of the diaphragm. Which is an active process and which is a passive process?

What are some of the effects of the enhanced greenhouse effect?

Which statement correctly describes an interaction of the respiratory and circulatory systems? A. Breathing speeds up when heart rate slows down. B. Breathing and heart rate slow down during exercise. C.

How man cells do spermatogenesi produce from one original cell

Which spheres would feel volcanic eruptions and earthquakes?

Which is visible evidence of energy passing through water? a sea arch a density tide a wave the Coriolis effect