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Principles of Inheritance question bank (Biology)

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Q1.

A pea plant with genotype RrYy is crossed with another pea plant with genotype rryy. What will be the number of phenotypes obtained by this cross?

(A)
$16$
(B)
$12$
(C)
$9$
(D)
$4$
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Q2.

A sickle-cell carrier man marries a woman who is carrier for sickle-cell anaemia. What are the chances of having carrier children?

(A)
All the children will be carriers.
(B)
None of them will be carriers.
(C)
$50\%$ of them will be carriers.
(D)
$25\%$ of them will be carriers.
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