G = green leaves g = yellow leaves N = naturally shapedleaves n = curly leaves Individuals with the heterozygous genotype of GgNn repeatedly produce haploid gametes consisting of the alleles GN, Gn, gN, and gn. Which law best represents this phenomenon?
A. Law of Meiosis
B. Law of Dominance
C. Law of Crossing Over
D. Law of Independent Assortment
Ans: D. Law of Independent Assortment
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A culture technique that encourages the growth of specific microbes while inhibiting the growth of others is a(n) ________ culture.
Fill in the blank(s) with the appropriate word(s).
In a pedigree, a person whose symbol is filled in and who is associated with the Roman numeral II is ____
a. affected by the trait and in the second generation b. not affected by the trait and in the second generation c. affected by the trait and is the second-oldest child in the family d. not affected by the trait and is the second-oldest child in the family e. affected by the trait and has an identical twin
If a pure-breeding wired-hair terrier (WW) is crossed with a pure-breeding smooth-hair terrier (ww), and a puppy with
a wavy hair is produced, the simplest explanation is ____.
a. a mutation has occurred b. hair texture is an X-linked trait c. incomplete dominance d. hair texture is a lethal trait e. codominance
Each pollen grain produces two cells, one of which may develop into a(n):
a. polar nucleus. b. pollen tube. c. anther. d. compound pistil. e. filament.