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Which genotype represents a true dihybrid condition ?

A
TtRr

B
ttrr

C
Ttrr

D
TtRR

Text SolutionText solutionverified iconVerified

A dihybrid cross considers two pairs of contrasting characters. TtRr genotype is obtained from the dihybrid cross of TTRR and ttrr which are true-breeding homozygous dominant and homozygous recessive breeding lines.
TtRr genotype consists of both dominant and recessive alleles for two different traits. Hence, it's a dihybrid genotype.
On the other hand, other genotypes given in the questions contain heterozygous alleles for either one of the two traits or none at all.
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Question Text
Which genotype represents a true dihybrid condition ?
Updated OnMay 12, 2023
TopicHeredity and Evolution
SubjectScience
ClassClass 10
Answer TypeText solution:1 Video solution: 4
Upvotes589
Avg. Video Duration7 min