You are running a nursery for garden peas at LSU, and you have two pure-bred gar

Question

You are running a nursery for garden peas at LSU, and you have two pure-bred garden pea strains: Yellow Wrinkled [YYrr] and Green Round [yyRR]. You know that Yellow is dominant to Green, and also that Round is dominant to Wrinkled. One customer asked about one particular pure-bred strain, Yellow Round [YYRR]. You promised to that customer that you could generate this pure-bred one. 1) Provide breeding schemes 2) After several breeding experiments, you need to identify the pure-bred one with Yellow Round. Provide a scheme how to identify that one, what is the frequency among the progeny with the Yellow Round phenotype

Explanation / Answer

Answer:

Answer

It is a case of the monohybrid cross.

If we cross both these varieties

Then,

                                    YYrr X   yyRR

          Y r           y      R

            Gamete        Yy   YR     ry   rR

rR

ry

Yy

YyrR

Yyry

YR

YrRR

YRry

We get 3:1 ration i.e in every four plants 3 would be yellow and round;1 would be yellow

rR

ry

Yy

YyrR

Yyry

YR

YrRR

YRry

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