As a carrier, Tina has one son with Hemophilia A. If she becomes pregnant for a second time with a boy, what is the chance that her second son could also suffer from Hemophilia A?
a. None.
b. 25%.
c. 100%
d. 50%.
d
Biology & Microbiology
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Which of the following is not a method of heat sterilization?
A. Autoclaving B. Heating in a dry air oven C. Incineration D. Pasteurization
Biology & Microbiology
During replication, which enzyme unwinds the DNA double helix?
A. DNA primase B. DNA polymerase I C. DNA helicase D. DNA gyrase E. DNA ligase
Biology & Microbiology
Chytrids usually develop long branching hyphae that form a visible mycelium on the surface of leaf litter in the soil.
Answer the following statement true (T) or false (F)
Biology & Microbiology
If both parents are "carriers" due to the presence of one copy of the recessive allele responsible for the trait being studied, what are the odds that they would have a normal child?
a. 0 b. 25% c. 50% d. 75% e. 100%
Biology & Microbiology