Home
Class 12
BIOLOGY
[A] : Heterocyst formation increases und...

[A] : Heterocyst formation increases under conditions of low light intensities .
[R] : The increase in the amount of phosphate in the medium leads to increase in heterocyst production .

A

If both A and R are true and R is the correct explanation of A

B

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

C

If A is true and R is false

D

If both A and R are false

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • MOLECULAR BASIS OF INHERITANCE

    TRUEMEN BIOLOGY ENGLISH|Exercise MCQs|270 Videos

  • NCERT Exemplar Questions +1 (EXCRETORY PRODUCTS AND THEIR ELIMINATION )

    TRUEMEN BIOLOGY ENGLISH|Exercise MCQs|15 Videos

Similar Questions

Explore conceptually related problems

At low light intensities, increase of CO_2 concentration will

As the intensity of incident light increases

Under what conditions would the breathing rate increase ?

In which of the following reaction, the formation of product is favoured by increase in pressure?

In which reaction will an increase in the volume of the container favor the formation of products?

A : On increasing the intensity of light , the number of photoelectrons emitted is more . Also the kinetic energy of each photo increases but the photoelectric current is constant R : Photoelectric current is independent of intensity but increases with increasing frequency incident radiation

Assertion: we can increases the saturation current in photoelectric experiment without increasing the intensity of light. Reason: Instensity can be increased by increasing the frequency of incident photons.

Under a given set of experiemental condition, with increase in the concentration of the reactants, the reate of a chemical reaction

[A]: Elongation and division of cells are pro- moted by gibberellins. [R]: Gibberellins increase the formation of hydrolytic enzymes that release energy nec- essary for growth