Q133
A mating among the following can not lead to heterosis
A.
AAbb × aaBB
B.
aaBBcc × AABBCC
C.
AABBccdd × AABBccdd
AnswerD.
AABBccdd × aabbCCDD
Answer: Option C
Solution
Answer: Option C
Solution:
Mating among the following cannot lead to heterosis is AABBccdd × AABBccdd.Heterosis refers to the phenomenon that progeny of diverse varieties of a species or crosses between species exhibit greater biomass, speed of development, and fertility than both parents.
Various models have been posited to explain heterosis, including dominance, overdominance, and pseudo-overdominance.