In a process called , an army of plasma cells and memory cells are produced from stimulated B cells.

A. conjugation
B. meiotic regeneration
C. recombination
D. clonal selection
E. genetic shuffling


D. clonal selection

Biology & Microbiology

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What is a karyotype?

A. A complete sequence of our DNA B. A picture of all the chromosomes in one person's cell C. A list of all the genes on our chromosomes D. A list of all the mutations in our chromosomes

Biology & Microbiology

Which of the following is true?

A) Mutations that inactivate tumor suppressor genes are important in cancer. B) Cancer is a single disease with one underlying molecular cause. C) Uncontrolled cell growth alone is sufficient for the development of cancers. D) Cancer is a single disease resulting from a common set of mutations.

Biology & Microbiology

The potential seventh mass extinction refers to ____

a. the loss of 50% of species on Earth, including dinosaurs, at the end of the Cretaceous b. the most extensive loss of species that occurred during the Permian c. what will happen to the human species if a nuclear war occurs d. the rapid loss of biodiversity due to human degradation of the environment e. events that occurred just before insects diversified on land

Biology & Microbiology

The ____ form of Plasmodium is transferred to humans through the bite of an infected mosquito

a. merozoite b. gametocyte c. cyst d. sporozoite e. spore

Biology & Microbiology