Which statement is true of X chromosomes? A. Women have two of them. B. Only men have them.
C. Only women have them.
D. Half of the babies born do not have them.
Answer; A women have two of them.​

The diagram illustrates the activity of vesicles during a cellular process.

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna

Discuss cell surface transport in the structure of constituents