wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

In the fruit fly, normal wings (W) is dominant over the vestigial wings (w). On the crossing of two normal-winged flies, 76 normal-winged and 23 vestigial-winged offspring are produced. Which of the following would be the possible genotype of parents?

A
WW and ww
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
WW and Ww
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Ww and ww
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Ww and Ww
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
E
WW and WW
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is D Ww and Ww
gametes W w
W WW Ww
w Ww ww
On crossing two normal winged flies we get 76 normal flies and 23 vestigial flies. Two normal wing flies mean either Ww or WW. But the ratio shows more number of normal wing flies which can be possible if two heterozygous are crossed because if both the individual are homozygous dominant than no chances of vestigial wing fly. So now the cross between two Ww and Ww , the result would be 3/4 normal winged and 1/4 vestigial wings. Thus the correct answer is option D.

flag
Suggest Corrections
thumbs-up
0
similar_icon
Similar questions
View More
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Chromosome Theory of Inheritance
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon