What happens during meiosis I? A. The DNA of each chromosome gets copied.
B. Two haploid cells are formed.
C. Sister chromatids are pulled apart.
D. Four haploid cells form from each parent cell.

What types of energy transfers and energy transportations are involved in the domino chain reaction?

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?