OBJECTIVE LIFE SCIENCE
GENETICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
R=round seedr=wrinkled seed.Cross a homozygous round with a wrinkled. Which statement predicts the results?
|
|
offspring will be Rr
|
|
|
offspring will be RR
|
|
|
round seeds will be recessive to wrinkled
|
|
|
Wrinkled will be observed in half of offspring
|
Explanation:
Detailed explanation-1: -Round seed trait ( R) is dominant over wrinkled ( r) seed trait in Pea. Heterozygous round seede plant (Rr) is crossed with wrinkled seeded plant (rr).
Detailed explanation-2: -Based on this observation round seeds is the dominant phenotype. With dominant being round seeds that would mean wrinkle seeds are the recessive trait. Therefore a cross of heterozygous for round with a homozygous recessive for wrinkled, will yield an F1 generation that has 50% round seeds and 50% wrinkle seeds.
There is 1 question to complete.