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Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16?
Most Upvoted Answer
Sum total of genotypes and phenotypes in F2 generation of a mendelian ...
Explanation:
In a trihybrid cross, three different traits are considered. Let's assume that the parents are homozygous for all three traits. The possible gametes for the parents are:
Parent 1: AABBCC
Gametes: ABC
Parent 2: aabbcc
Gametes: abc
Genotypes in F2 Generation:
The genotype of F1 generation will be AaBbCc. When we do the cross between F1 generation individuals, the Punnett square will have 64 boxes. The possible genotypes in F2 generation are:
- 27 genotypes with different combinations of A, B, and C
- Each genotype will occur 1-8 times
Phenotypes in F2 Generation:
The phenotypes in F2 generation will depend on the dominant and recessive traits. Let's assume that A, B, and C are dominant traits. The possible phenotypes in F2 generation are:
- A-B-C-
- A-B-cc
- A-bbC-
- A-bbcc
- aaB-C-
- aaB-cc
- aabbC-
- aabbcc
There will be 8 different phenotypes in F2 generation.
Therefore, the sum total of genotypes and phenotypes in F2 generation of a Mendelian trihybrid cross is 64.
In a trihybrid cross, three different traits are considered. Let's assume that the parents are homozygous for all three traits. The possible gametes for the parents are:
Parent 1: AABBCC
Gametes: ABC
Parent 2: aabbcc
Gametes: abc
Genotypes in F2 Generation:
The genotype of F1 generation will be AaBbCc. When we do the cross between F1 generation individuals, the Punnett square will have 64 boxes. The possible genotypes in F2 generation are:
- 27 genotypes with different combinations of A, B, and C
- Each genotype will occur 1-8 times
Phenotypes in F2 Generation:
The phenotypes in F2 generation will depend on the dominant and recessive traits. Let's assume that A, B, and C are dominant traits. The possible phenotypes in F2 generation are:
- A-B-C-
- A-B-cc
- A-bbC-
- A-bbcc
- aaB-C-
- aaB-cc
- aabbC-
- aabbcc
There will be 8 different phenotypes in F2 generation.
Therefore, the sum total of genotypes and phenotypes in F2 generation of a Mendelian trihybrid cross is 64.
Community Answer
Sum total of genotypes and phenotypes in F2 generation of a mendelian ...
Ratio is
27:9:9:9:3:3:3:1
So total sum is 64.
27:9:9:9:3:3:3:1
So total sum is 64.
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Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16?
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Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16?.
Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16?.
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