This is the type of cell division used by most prokaryotes.
A. mitosis
B. binary fission
C. binary fusion
D. meiosis
B. binary fission
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Expression of the Hoxc6 gene causes ____
a. ribs to develop on a vertebra b. the development of eyes c. limb bud development d. gill arches to close e. the development of hair
Which of the following is true of AIDS?
a. It is equivalent to HIV. b. It is highly contagious. c. There is no cure for those afflicted. d. It is caused by a bacterium. e. It can be prevented by vaccination
Traits controlled by sex-linked recessive genes are expressed more often in males because
A) males always carry two copies of these genes. B) males inherit these genes from their fathers more often than their mothers. C) males get more doses of the recessive gene than do females. D) the male has only one gene for the trait. E) all male offspring of a female carrier get the gene.
Segments of eukaryotic DNA that can move or be copied from one site to another in the genome are called
A) exons. B) plasmids. C) transposable elements. D) vectors.