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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a. ligaments b. cartilage c. smooth muscles d. tendons e. joints

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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.

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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