Gru is really excited with all the work you have done examining the genetics of
ID: 59382 • Letter: G
Question
Gru is really excited with all the work you have done examining the genetics of minions! He has decided would like you perform a genetic cross get him the perfect henchman: glowing, two eyed, tall, thin, smooth (not furry), indestructible minion. You first determine that glowing is recessive to not glowing (N). You find a female minion that is heterozygous, not glowing, chubby, furry, and is also two-eyed, indestructible, tall and male minion that is heterozygous one eyed, short, furry, destructible, and also glows and is thin. Suppose now that you cross these two minions.
a. What are the genotypes of these parents
b. How many genotypes are possible in the F1 offspring?
c. What is the chance of getting Gru’s ideal minion from this cross?
d. Gru told you that you MUST obtain him a perfect minion from this cross. In order to avoid his freeze ray, how many offspring must you produce in order to be 95% certain that you will obtain the a glowing, two eyed, tall, thin, smooth, indestructible minion.
Explanation / Answer
A) genotypes of Female minion - Heterozygous Not glowing Nn, Chubby Cc, Furry Ff ; Two eyed -EE; Indestructible- Ii, Tall- Tt
Genotype of male minion - Heterozygous one eyed Ee tt Ff, ii, nn, cc
B) 36 genotypes are possible in the F1 offspring, since 6 genotypes in two phenotypes 62, provided all the genes sort independently.
C) The probability for the ideal minion is 1/36 because it has only one character different from the parent phenotype of male.
D) We must produce 64 offspring to be 95% certain. Since 100% result will be obtained with 64 (26) different genotypes..
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