Principles Of Inheritance And Variation Ques 73
A self-fertilizing trihybrid plant forms gametes
[2004]
(a) 8 different gametes and 8 different zygotes
(b) 4 different gametes and 4 different zygotes
(c) 8 different gametes and 8 different zygotes
(d) 8 different gametes and 8 different zygotes
Show Answer
Answer : a
Hints & Solution
(a) A self-fertilising trihybrid plant forms 8 different gametes and 64 different zygotes. The genotype of trihybrid plant is $AaBbCc$. Number of gametes formed $=2^{n}=2^{3}=8$ Here $n=$ no. of heterozygosity $=3$ in present case. No. of zygotes formed $=2^{3}=8$
BETA
