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Biology CBSE Live product
Class 10 (2025-26)
Heredity
PT2 Revision I - Heredity
10.
Dihybrid cross
Question:
4
m.
In the following crosses write the characteristics of the progeny
:
a
.
RR YY
x
RR YY -
All progeny will be round yellow (RrYy)
All of the progeny is going to be wrinkled green - rryy
All seeds are round and yellow (genotype RRYY)
Round yellow, round green, wrinkled yellow, wrinkled green (RYry; rYry; RYry; rYry)
b
.
Rr Yy
x
Rr Yy
-
All of the progeny is going to be wrinkled green - rryy
Round yellow, round green, wrinkled yellow, wrinkled green (RYry; rYry; RYry; rYry)
All progeny will be round yellow (RrYy)
All seeds are round and yellow (genotype RRYY)
c
.
rr yy
x
rr yy
-
All seeds are round and yellow (genotype RRYY)
All progeny will be round yellow (RrYy)
All of the progeny is going to be wrinkled green - rryy
Round yellow, round green, wrinkled yellow, wrinkled green (RYry; rYry; RYry; rYry)
d
. RR YY x rr yy -
All of the progeny is going to be wrinkled green - rryy
All progeny will be round yellow (RrYy)
All seeds are round and yellow (genotype RRYY)
Round yellow, round green, wrinkled yellow, wrinkled green (RYry; rYry; RYry; rYry)
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