Which of the following is an example of genetic mosaicism?

A) Calico coat color in cats
B) Albinism in mice
C) Male pattern baldness in humans
D) Red-green color blindness in humans
E) White eyes in Drosophila


A

Biology & Microbiology

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A northern blot could be used best to monitor control of gene expression at which of the following steps?

A. DNA methylation B. nucelosome acetylation C. protein ubiquitination D. transcription

Biology & Microbiology

A woman with normal blood clotting mates with a man who has hemophilia. Their first child is a boy

who has hemophilia. Tests show that the father and son both have the same form of hemophilia, that it is X-linked, and that the boy has normal genetic inheritance. You can predict that if the couple produces more children together, then the odds are that

a. all of the children will have hemophilia. b. half of the boys and none of the girls will have hemophilia. c. none of the rest of children should have hemophilia. d. all of the boys and half of the girls will have hemophilia. e. half of the boys and half of the girls will have hemophilia.

Biology & Microbiology

Which of the following is associated with specific immune responses?

a. skin b. B cells c. macrophages d. complement proteins e. tears

Biology & Microbiology

Host specificity of Rhagoletis pomonella reduces gene flow between the apple and hawthorn races by 4% to 6% in each generation. This is an example of:

a. allopatric speciation. c. secondary contact. b. assortative mating. d. resource competition.

Biology & Microbiology