Q.

If individuals of genotype Aa Bb Cc are intercrossed, how many different genotypes can occur in their progeny?
 

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

15

b

27

c

6

d

9

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

  • There are 27 different genotypic combinations for a trihybrid cross.
  • Crossing pure lines that varied only in one feature constituted Mendel's initial series of tests. A crucial study method is, to begin with, the most straightforward scenario like Mendel did.
  • A trihybrid cross is created when three qualities are combined. We must do a trihybrid cross to answer the question. The formula used to determine the various gamete combinations created is 2n.
  • n = 3; 23 = 8. Here, a total of 8 gametes would develop.
  • Parents: X X X AaBbCc. ABC, ABc, AbC, aBC, Abc, aBc, and abc all developed into gametes.
  •  27:9:9:9:9:3:3:3:1 is the phenotypic ratio. For the given hybrid, there are 8 distinct phenotypes. There are also 27 distinct genotypes.
Trihybrid cross

 

Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon