Question

A cross between a tall pea-plant (TT) and a short pea-plant (tt) resulted in progenies that were all tall plants because
(a) tallness is the recessive trait.
(b) shortness is the dominant trait.
(c) height of pea-plant is not governed by gene T or t.
(d) tallness is the dominant trait.

Answer 1

Answer:

option d is right talllness is the dominant trait

Answer 2

A cross between a tall plant ( TT ) and short pea plant ( tt ) resulted in progeny that were all tall plants because tallness is the dominant trait.

In F

1

generation, the cross between TT and tt will result in all tall plants. Thus, tallness is the dominant trait.

Whenever two traits of a character are crossed, the F

1

plants show only one of the traits, this trait is called as the dominant trait. The other trait (dwarfness) that does not express itself in F

1

generation is called as the recessive trait.