Sickle-cell disease is an inherited chronic blood disease caused by an autosomal recessive allele. Suppose a man who is homozygous recessive for the sickle-cell gene fathers a child by a woman who is a carrier for sickle-cell. What are the chances their children will exhibit the disease?
a. 0 percent
b. 25 percent
c. 50 percent
d. 75 percent
c. 50 percent
Biology & Microbiology
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A human female could ovulate about ____ times in her lifetime
a. 40 b. 400 c. 4,000 d. 40,000 e. 400,000
Biology & Microbiology
Blood pressure is highest in the __________
a. veins b. arteries c. capillaries d. venules e. arterioles
Biology & Microbiology
The adaptive immune response requires exposure to specific epitopes for activation.
Answer the following statement true (T) or false (F)
Biology & Microbiology
Into what type of energy does the process of photosynthesis transform solar energy?
A) chemical B) mechanical C) heat D) kinetic
Biology & Microbiology