Question

In the following cases , write the characteristics of the progeny :

( a ) RRYY × RRYY

( b ) RrYy × RrYy

( c ) RRYY × rryy

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Answer 1

1. First case
RRYY × RRYY
both parents have same charecterstics.
So, the charecterstics of progeny will also be RRYY
The progeny will round and yellow.

2. Second one.
RrYy × RrYy
The parents have both a dominant and a resessive chromosome.
The progeny will have four cases
RRYY, rrYY, RRyy, rryy.
Characterstics are round yellow, round green, wrinkled yellow, wrinkled green.

3. Third case.
RRYY × rryy
one parent have dominant and other have resessive chromosomes.
So, the chromosomes of progeny will RrYy.
Characterstics of progeny will be round and yellow as it will follow the dominant chromosome.

Answer 2

Hey friend !!

Here is your answer..

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a). The progeny will be ROUND YELLOW.

b). The progeny will be in the ratio

==> 9 : 3 : 3 : 1

ROUND YELLOW -- 9

ROUND GREEN -- 3

WRINKLED YELLOW -- 3

WRINKLED GREEN -- 1

c). All the progeny will be ROUND YELLOW.

Refer to the attachment..

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Hope it helps.