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Home » In peas, a pure tall plant (TT) is crossed with a short plant (tt). The ratio of pure tall plants to short plants in F2 isa)1 : 3b)3: 1c)1: 1d)2: 1
In peas, a pure tall plant (TT) is crossed with a short plant (tt). The ratio of pure tall plants to short plants in F2 is
a)1 : 3

b)3: 1

c)1: 1

d)2: 1
Biology | CBSE | Class 10 | Heredity and Evolution | NCERT Exemplar | Science
In peas, a pure tall plant (TT) is crossed with a short plant (tt). The ratio of pure tall plants to short plants in F2 is
a)1 : 3

b)3: 1

c)1: 1

d)2: 1

Solution: Progenies with the genotypes below would result from a cross between pure tall plant (TT) and short plant (tt).

TT (Pure tall),

tt (Pure short), and

Tt (Pure short) ( Mixed tall).

This results in a 3:1 ratio between tall and short plants.  So, the correct answer is (b) 3: 1

i

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