Oklahoma State University Probability & Punnett Squares Biology Worksheet

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fcnegnarm

Science

Oklahoma State University

Description

For this week's homework, we want to keep it light since we're aware other courses are having their exams this week, too. Please answer the following two questions and their 3 parts. You can do this on a scratch sheet of paper, on a tablet, etc (however you want as long as you upload the file). Please show your work so I can give you full credit.

  1. You are interested in breeding white fur cats. The allele for white fur (B) is dominant to the allele for navy blue fur (b). You have one mom cat (Bb) and one dad cat (bb).
    1. What are all possible gametes the two parent cats (mom and dad cat) can make?
    2. What is the phenotypic ratio of white fur cats to navy blue cats (put this in a ratio form – remember ratios have a colon between numbers)?
    3. What is the genotypic ratio of white fur cats to navy blue cats?
  1. As a pumpkin breeder, you want to breed some orange pumpkins together and see the results. The orange color allele (Y) is dominant to the yellow color allele (y).
    1. What possible gametes are produced if two orange pumpkins with a genotype of Yy are mated?
    2. What is the probability of these two orange pumpkin parents producing an orange pumpkin baby?
    3. What is the genotypic ratio of the offspring (remember ratios have a colon between numbers)?

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Anonymous
This is great! Exactly what I wanted.

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