Question

When flies having a gray body and normal wings were crossed with flies having a black body and vestigial wings, the F2 generation showed a phenotypic ratio of 3:1, and not 9:3:3:1.

Which of the following could be a correct explanation for this ratio?
A) genres for body color and wing size were on the same chromosome and inherited together .
B) genres for body color and wing size assort indepedently .
C) genres for body color and wing size are inherited seperately from each parent . @flvsguy

Answer 1

Which do you think it is? Why or why not? It would be easier to tutor you if you explained what about the question is giving you trouble.

Answer 2

C .

Answer 3

Ohkay lets see

Answer 4

Do u know mendel's Dihybrid cross ?

Answer 5

Nope .

Answer 6

I hate these questions

Answer 7

Haha sorry !

Answer 8

A dihybrid cross is a cross between F1 offspring (first-generation offspring) of two individuals that differ in two traits of particular interest.

Answer 9

For example in this question two traits are body color and wing structure

Answer 10

While performing these crosses, mendel observed this pattern and stated his law of independent assortment which states that allele pairs separate independently during the formation of gametes. This means that traits are transmitted to offspring independently of one another.

Answer 11

are u getting my points ?

Answer 12

Yes .

Answer 13

So now according to this the answer should be 9:3:3:1

Answer 14

Its A then .

Answer 15

Yep

Answer 16

But again one another scientist named Morgan observed in drosophilla that some characters are always inherited together. This condition is called as linkage. Morgan observed this phenomenon in Drosophilla or fruit fly

Answer 17

This is the reason for deviation from general dihybrid cross (9:3:3:1) to 3:1