In a monohybrid cross with complete dominance, the F2 offspring should contain ____
a. two different phenotypes and two different genotypes
b. two different phenotypes and three different genotypes
c. three different phenotypes and two different genotypes
d. three different phenotypes and three different genotypes
e. two different phenotypes and one genotype
b
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A population that is increasing in size has an intrinsic rate of population growth (r) that is
A) < 0. B) = 0. C) > 0. D) > 1.
Which of the following are accessory photosynthetic pigments that expand the spectrum of light that
provides energy for photosynthesis:a. carotenoids. b. chlorophyll a. c. chlorophyll b. d. Both caroternois and chlorophyll a. e. Both carotenoids and chlorophyll b.
Negative epistasis is:
a. only present in the homogametic sex. b. a mechanism that explains the Dobzhansky–Muller model of reproductive isolation. c. responsible for chromosomal rearrangements. d. responsible for changes in ploidy.
Crossing over in prophase I and ________ in metaphase I increase the genetic variation from one generation to another
Fill in the blank(s) with correct word