The X-controlling element gene is
A) SRY.
B) XIC.
C) Xce.
D) MATa.
E) Xist.
C
Biology & Microbiology
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A secondary immunodeficiency disease is not the result of
A. genetic defects. B. malignancies. C. advanced age. D. malnutrition.
Biology & Microbiology
Evolutionarily, floral parts represent modified
A. stems. B. leaves. C. roots. D. stolons. E. buds.
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Assume that in guinea pigs, dark brown fur (B) is dominant to black fur (b). If you mate a black guinea pig with a homozygous brown guinea pig, what proportion of the progeny will be homozygous?
A) none B) 1/4 C) 1/2 D) 3/4 E) all
Biology & Microbiology
Molluscs having two jointed valves or shells belong to the class:
a. Gastropoda. b. Cephalopoda. c. Bivalvia. d. Polyplacophora. e. Scaphopoda.
Biology & Microbiology