you crossed a red-nosed, long-tailed male deer with a blue-nosed, long-tailed fe
ID: 8616 • Letter: Y
Question
you crossed a red-nosed, long-tailed male deer with a blue-nosed, long-tailed female. They produced 29 blue-nosed, long-tailed and 11 blue-nosed, short-tailed F1s. You then crossed two of the blue-nosed, short-tailed F1s and got 23 blue-nosed, short-tailed females, 12 blue-nosed, short-tailed males, and 10 red-nosed, short-tailed males in the F2s. What were the genotypes of:a) The red-nosed, long-tailed male parent?
b) The blue-nosed, long-tailed female parent?
c) The blue-nosed, long-tailed female F1s?
d) The red-nosed, short-tailed male F2s?
Explanation / Answer
Red nose long tail x blue nose long tail This cross gives you 29 blue nose, long tail, 11 blue nose short tail. These results show that blue nose is dominant over red nose. It also shows that long tail is dominant over short tail. This can be assumed from the high number of blue and long tail. ---------------------------- blue nose short tail x blue nose short tail [from F1] The results of this cross are: 23 blue nose, short tail 12 blue nose short tail 10 red nose short tail ---------------------------- a) The genotype of the red nose long tailed male parent is bbLl b)The genotype of the blue nose long tailed female parent is BBLl c)The genotype of the blue nose long tailed female F1 is BbLl d)The genotype of the red nose short tailed male F2 is bbll -----------------------------Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.