Ask Question
2 February, 18:34

You are given two true-breeding groups of gerbils. The gerbils in the first group have black fur and curly tails; the gerbils in the second group have yellow fur and straight tails. When you produce an F1 generation, you see only gerbils with black fur and curly tails. When you produce an F2 generation, 75% of the gerbils have black fur and 25% have yellow fur. You also see that 25% of the gerbils have straight tails and 75% have curly tails. If the single alleles responsible for fur color and tail appearance sort independently, how many of the black gerbils in this generation are expected to have straight tails?

+3
Answers (1)
  1. 2 February, 18:37
    0
    3 black gebrils have straight tails

    Explanation:

    Given -

    First group of true breeding gebrils have black fur and curly tails

    Second group of true breeding gebrils have yellow fur and straight tails

    After the F1 generation, all the offspring would have black fur and curly tail

    This means black fur is dominant over yellow fur and curly tail is dominant over straight tails

    Let "Black fur" be represented by "B" and "yellow fur" be represented by "b"

    Let curly tail be represented by "C" and straight tail be represented by "c"

    Then parents genotype for F1 generation would be "BBCC" and "bbcc"

    and genotype of first generation offspring would be "BbCc"

    BbCc

    BC Bc bC bc

    BC BBCC BBCc BbCC BbCc

    Bc BBCc BBcc BbCc Bbcc

    bC BbCC BbCc bbCC bbCc

    bc BbCc Bbcc bbCc bbcc

    Black Curly - BBCC, BBCc, BbCC, BbCc, BBCc, BbCc, BbCC, BbCc, Bbcc,

    Yellow curly - bbCC, bbCc, bbCc

    Black straight - BBcc, Bbcc, Bbcc

    Yellow straight - bbcc

    3 black gebrils have straight tails
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “You are given two true-breeding groups of gerbils. The gerbils in the first group have black fur and curly tails; the gerbils in the second ...” in 📗 Biology if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers