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Primavera Biology B. Unit 1 Exam Questions and Answers 100% Solved
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Primavera Biology B. Unit 1 Exam
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Primavera Biology B: Unit 1 ExamA plant has red flowers. In this species, a red flower color is the dominant trait over a
white flower color.
What can you say about this plant? - answer If the genotype is Rr, the phenotype will be
red-flowered.
Which observation led Mendel to the idea that traits were controlled by more than a
single factor? - answerA trait that was not seen in the first generation may later
reappear in the second generation.
The two different X in Y individuals plays a role in increasing genetic biodiversity. -
answerX: alleles
Y: heterozygous
The Punnett squares show crosses for fur color. Black (B) is dominant, and white (b) is
recessive. Identify the Punnett square that shows a 1:1 ratio of homozygous recessive
to heterozygous. - answerhttps://assets.learnosity.com/organisations/625/asset/media/
1159915
Read the following statement.
A dihybrid cross experiment is carried out on pocket mice. The traits being observed are
fur color and tail length. In the F2 generation, 54 mice are dark brown with long tails, 18
mice are dark brown with short tails, 18 mice are tan with long tails, and 6 mice are tan
with short tails.
Which traits are dominant? - answerdark brown fur, long tail
Eye and body color in fruit flies are close together on the same chromosome.
What can be said about studying these traits? - answerThe traits would not obey the law
of independent assortment because they are not inherited separately.
https://assets.learnosity.com/organisations/625/asset/media/1159998
Scientists study apple trees. In the fruit color gene, G leads to green apples and is
dominant over red (g). S leads to sweet apples and is dominant over sour (s). They find
the alleles for the two genes are arranged as shown on the same chromosome. Which
of the following situations will they observe? - answerXXX INCORRECT XXX
One gene will cancel out the effect of the other.
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