A typical adult male?

a. produces sperm up to about 65 years old.

b. produces sperm during a monthly cycle.

c. is born with all the sperm he will ever produce.

d. produces several hundred million sperms each day

In a fetus, most bones are originally made of? a. calcium phosphate b. red and yellow bone marrow c. cartilage d. osteopores

Crossing over would most likely occur during which stage of the cell cycle? when DNA is being replicated when homologous chromosomes line up in pairs when centromeres are separated when cytokinesis begins

How does life with Type 1 diabetes compare to life with Type 2 diabetes? Mention at least three specific comparisons

How is DNA prepared for cell division?

When rocks bend without breaking because of plate movement is called

Risk assessment depends on

DNA is genetic material that makes up living things, and folic acid plays an important role in the formation of DNA. Jon wants to study the effect of folic acid on DNA formation in microbes.

Your alien friend from planet Xenon is visiting and wants to learn how to breed pea plants. You show your friend a recent batch of pea plants with purple flowers that you grew by crossing plants that had purple flowers with plants that had white

The green stem ant has three (autosome) chromosomes. During meiosis, chromosome 1 and 3 separate normally, but chromosome 2 homologs do not separate during meiosis I. Meiosis II happens normally. What will the resulting cells of meiosis look like?

A population is growing at a rate of 2,4,8, 16, 32. Which type of growth does this describe?