If we cross two pea plants, each heterozygous for yellow seed color genes, the expected ratio of yellow:green among the offspring will be
A) 25% yellow:75% green.
B) 100% yellow.
C) 100% green.
D) 75% yellow:25% green.
E) 50% yellow:50% green.
D
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. Identification of the various strains of N. meningitidis is through
A. Gram staining. B. serogrouping. C. fluorescent antibodies. D. titering.
The large number of alveoli in lungs improve gas exchange by _____.
A. increasing the concentration difference B. changing the diffusion constant C. decreasing the distance for diffusion D. increasing the surface area for diffusion
If only one twin has a trait, the twins are ____________________ for that trait.Fill in the blank(s) with the appropriate word(s)
The system of taxonomy used today was originated by (Linnaeus/Darwin/Woese). (Be sure to capitalize your answer.)
What will be an ideal response?