A gene on the Y chromosome that determines maleness is
A) ABO.
B) XIST.
C) SRY.
D) E. BOY.
C) SRY.
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Your mother has albinism, which is a recessive trait. Your father has cystic fibrosis, which is also a recessive trait
You discover that your new father-in-law has albinism and cystic fibrosis. If neither you nor your spouse has either albinism or cystic fibrosis, what are the odds that your first child will have neither albinism nor cystic fibrosis?
a. 1/16 b. 3/8 c. 1/8 d. 9/16 e. 0
Which of the following allows a virus to attach to a host cell?
a. A viral receptor must be present on the host cell. b. The cell must be in the process of apoptosis. c. The virus uses its tail fibers to cling to the cell. d. The cell must be already engaged in endocytosis.
The antigen binds to the __________ of an antibody
a. constant region b. neutral region c. variable region d. active site e. charged region
Both capsules and endospores..
a. are created in harsh conditions b. are a method of protection c. look like a halo d. are stained green