Which of the following processes is most likely responsible for many mammals having multiple hemoglobin genes?
a. a reciprocal translocation
b. a duplication
c. an inversion
d. a deletion
Ans: b. a duplication
Biology & Microbiology
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Skeletal muscles attach to bones by ____
a. ligaments b. cartilage c. smooth muscles d. tendons e. joints
Biology & Microbiology
In order to activate the cell mediated immune response, which event must occur?
a. A naïve helper T cell must bind to an antigen-presenting dendritic cell.
Biology & Microbiology
The ovarys_____ every month when releasing an egg.
A. Alternate B. release an egg C. none of these
Biology & Microbiology
Which of the following is a way a male fruit fly can increase reproductive success?
a) produce more sperm cells b) put more effort into parenting c) put less effort into mating d) invest more resources in fewer offspring e) mate with as many females as possible
Biology & Microbiology