Biology 251 - Genetics » Spring 2021 » Topic 3.1 Quiz

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Question #1
In the pea plant, meiosis to produce male gametes in pollen occurs in the _________ of a flower.
A.   fibers
B.   anthers
C.   style
D.   pistil
E.   stigma
Question #2
Cross pollenation can be easily performed in genetic experiments with plants like the pea because self-pollenation can be prevented in a flower:
A.   by removing the ovule.
B.   because the flowers normally produce only male or female gametes.
C.   by removing the anthers.
D.   because the male and female gametes develop at different times.
Question #3
A diploid individual with two copies of a different allele for a given gene is a:
A.   hemizygote.
B.   zygote.
C.   heterozygote.
D.   homozygote.
Question #4
In a cross of true-breeding plants producing yellow seeds with plants producing green seeds, all of the progeny produce yellow seeds, demonstrating the phenomenon of:
A.   dominance.
B.   inheritance.
C.   diploidy.
D.   segregation.
Question #5
In a monohybrid cross beginning with true-breeding parents that differ in a characteristic over two generations, a 3:1 ratio is seen for:
A.   phenotypes in the F2 generation.
B.   phenotypes in the F1 generation.
C.   genotypes in the F2 generation.
D.   genotypes in the F1 generation.

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