MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Heredity

a What will y...

Question

(a) What will you get in the F₁ and F₂ generations in the following cross?
Pure tall pea plant × Pure dwarf pea plant
(b) It it an example of monohybrid cross or dihybrid cross?

Open in App

Solution

(a) In the F₁ generation, we will get all tall plants. In the F₂ generation, we will get tall and dwarf plants in the ratio 3:1.
(b) It is an example of monohybrid cross, as only one character (i.e., plant height) is considered for crossing.

Suggest Corrections

thumbs-up

1

Similar questions

Q. If we cross pure-bred tall (dominant) pea plant with pure-bred dwarf (recessive) pea plant we will get Pea plant of

F_{1}

generation, then we obtain Pea plants of

F_{2}

generation.
(a) What do the plants of

F_{1}

generation look like?
(b) State the ratio of tall plants to dwarf plants in

F_{2}

generation.
(c) State the type of plants not found in

F_{1}

generation but appeared in

F_{2}

generation, mentioning the reason for the same.

In one of his experiments with pea plants, Mendel observed that when a pure tall pea plant is crossed with a pure dwarf pea plant, in the first generation

F_{1}

only tall plants appear.

F_{1}

generation plants were self-fertilized, he observed that in the plants of second-generation

F_{2}

both tall plants and dwarf plants were present. Why did it happen? Explain briefly.
(ii)What happens to the traits of the dwarf plants in this case?

Q. A cross between pure tall Pea plant with green pods and dwarf Pea plant with yellow pods will produce tall

F_{2}

plants, out of 16

Q. A cross between a tall pea plant and dwarf pea plant resulted tall progenies in

F_{1}

generation, because

Q. Pure-bred pea plants A are crossed with pure-bred pea plants B. It is found that the plants which look like A do not appear in F₁ generation but re-emerge in F₂ generation. Which of the plants A and B are : (i) tall, and (ii) dwarf? Give reason for your answer.

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Heredity

BIOLOGY

Watch in App

explore_more_icon

Explore more

Standard X Biology

Join BYJU'S Learning Program

CrossIcon