[A]: Pollen grains are stored in liquid nitrogen.
[R]: Cryopreservation protects the viability of pollen.

Both A and R are true and R is the correct explanation of A

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Both A and R are true but R is not the correct explanation of A

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A is true but R is false

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A and R are false

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Both A and R are true and R is the correct explanation of A
Liquid nitrogen maintains low temperature for the long-term storage.Therefore, the plant materials do not lose their viability for a long time.

Suggest Corrections

Similar questions

Q. Assertion(A): Some algae are unicellular.
Reason(R): They belong to the kingdom Monera.

Q. Assertion :

{CO}_{2}

easily diffuses from alveoli to tissues and

{CO}_{2}

from tissue to alveoli.

Reason : Alveoli is 2-celled thick and capillaries are thin walled.

Q. Assertion :the works of most of the Bhakti Saints became immensely popular. Reason: Most of the works were composed in regional languages and could be sung.
(1) A is true but R is false
(2) A is false but R is true
(3) Both A and R are true and R is the correct explanation of A
(4) Both A and R are true but R is not the correct explanation of A

Q. Assertion (A) : In our houses, the current in A.C. electricity line changes direction 60 times per second.
Reason (R) : The frequency of alternating voltage supplied is 50 Hz.
Codes

DIRECTIONS (Qs. 52 AND 53): The following item consist of two statements: one labelled as the Assertion a) and the other as Reason (R). You are to examine these two statements carefully and select the answers to these items using the codes given below:

a) Both A and R are individually true but R is the correct explanation of A

b) Both A and R are individually true but R is not the correct explanation of A

c) A is true but R is false

d) Both A and R are false

53. Assertion a): Saluva Narasimha put an end to the old dynasty and assumed the royal title.

Reason

(R): He wanted to save the kingdom from further degeneration and disintegration. [2003]

Join BYJU'S Learning Program

[A]: Pollen grains are stored in liquid nitrogen. [R]: Cryopreservation protects the viability of pollen.

The correct option is A Both A and R are true and R is the correct explanation of ALiquid nitrogen maintains low temperature for the long-term storage.Therefore, the plant materials do not lose their viability for a long time.

[A]: Pollen grains are stored in liquid nitrogen.
[R]: Cryopreservation protects the viability of pollen.

The correct option is A Both A and R are true and R is the correct explanation of A
Liquid nitrogen maintains low temperature for the long-term storage.Therefore, the plant materials do not lose their viability for a long time.