If a boy exhibits a sex-linked trait that is carried on the X chromosome, what mustbe true?

The most likely place to find fossils are in? A. The sap of ancient trees B. Volcanic rock C. Sedimentary rock

How do mutations lead to variation?

What is the best metric unit for the height of a flagpole

The hormone that stimulates spermatogenesis is

Which statement is not a reason to observe scientists conduct investigations? (A.) To explain observed phenomena (B.) To meet the requirements for a promotion. (C.) To test predictions of current theories (D.

In beetles, the gene for color and the gene for pattern are located on the same chromosome and exhibit recombination.

At what phase of meiosis is the number of chromosomes per cell doubled? What happens after that so that the number of chromosomes per cell does not end up being higher?

Unlike endocrine glands, exocrine glands a. release hormones. b. do not usually have ducts. c. release secretions outside of the body. d. release secretions directly into the blood

How the structure of DNAallows it to serve as the basis for inheritance?

Where does DNA replication happen?