NEET Exam > NEET Questions > Sum total of genotypes and phenotypes in F2 g...
Start Learning for Free
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.
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Similar NEET Doubts
Top Courses for NEETView all
Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16?
Question Description
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?.
Solutions for Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16? defined & explained in the simplest way possible. Besides giving the explanation of
Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16?, a detailed solution for Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16? has been provided alongside types of Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16? theory, EduRev gives you an
ample number of questions to practice Sum total of genotypes and phenotypes in F2 generation of a mendelian trihybrid cross is: (1) 27 (2) 35 (3) 64 (4) 16? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup