11. Possible types of gametes formation from genotype AABBCcDdEe would be- (1) 16 (2) 64 (3) 8 (4) 128

11. Possible types of gametes formation from genotype AABBCcDdEe would be-
(1) 16           (2) 64
(3) 8             (4) 128

Step-by-step reasoning

Genotype given: AABBCcDdEe

  • A: AA → homozygous (only A in gametes).
  • B: BB → homozygous (only B in gametes).
  • C: Cc → heterozygous (C or c).
  • D: Dd → heterozygous (D or d).
  • E: Ee → heterozygous (E or e).

Only heterozygous loci generate variation in gametes.

Count heterozygous pairs: Cc, Dd, Ee → n = 3 heterozygous gene pairs.

Number of different gametes is given by:

No. of gametes = 2n = 23 = 8

So the organism can produce 8 distinct gamete types (e.g., ABCDE, ABCDe, ABCdE, ABCde, ABcDE, ABcDe, ABcdE, ABcde).

Checking options

  • 16 → 24, would require 4 heterozygous pairs.
  • 64 → 26, for 6 heterozygous pairs.
  • 8 → 23, matches our calculation.
  • 128 → 27, for 7 heterozygous pairs.

Therefore, the correct option is (3) 8.

 

1 Comment
  • MOHIT AKHAND
    November 30, 2025

    No..of heterozygous pair
    2³ = 8 gametes possible

Leave a Reply

Your email address will not be published. Required fields are marked *

Latest Courses