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Definition of Back Cross

Question 43In...

Question

Question 43
In the following crosses write the characteristics of the progeny
$\begin{matrix} C r o s s & P r o g e n y (a) R R Y Y x R R Y Y R o u n d, y e l l o w R o u n d, y e l l o w & . . . . . . . (b) R r Y y x R r Y y R o u n d, y e l l o w R o u n d, y e l l o w & . . . . . . . (c) r r y y x r r y y w r i n k l e d, g r e e n w r i n k l e d, g r e e n & . . . . . . . (d) R R Y Y x r r y y R o u n d, y e l l o w w r i n k l e d g r e e n & . . . . . . . \end{matrix}$

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$\begin{matrix} C r o s s & P r o g e n y (a) R R Y Y x R R Y Y R o u n d, y e l l o w R o u n d, y e l l o w & R o u n d, y e l l o w (b) R r Y y x R r Y y R o u n d, y e l l o w R o u n d, y e l l o w & R o u n d, y e l l o w R o u n d, g r e e n W r i n k l e d, y e l l o w W r i n k l e d, g r e e n (c) r r y y x r r y y w r i n k l e d, g r e e n w r i n k l e d, g r e e n & W r i n k l e d, g r e e n (d) R R Y Y x r r y y R o u n d, y e l l o w w r i n k l e d g r e e n & R o u n d, y e l l o w \end{matrix}$

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Q. Question 5
If a round, green seeded pea plant (RR yy) is crossed with wrinkled, yellow seeded pea plant (rr YY), the seeds produced in F1 generation are

(a) round and yellow
(b) round and green
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(d) wrinkled and yellow

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C. Green Round
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R R Y Y \times r r y y

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Q. In Mendel's experiment with garden pea, round seed shape (RR) was dominant over wrinkled seed shape (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What will be the products of the cross RRYY x rryy?

Q. In Mendel's experiments with Garden Pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledons (YY) was dominant over green cotyledons (yy). What are expected phenotypes in

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\times

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Definition of Back Cross

Standard XII Biology

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