Question

Read the assertion and reason carefully to mark the correct option in question.

Assertion: Secondary constriction gives appearance of small fragment called the satellite.


Reason: Few chromosomes have non-staining secondary constrictions at a variable location.

• A. If both assertion and reason are false.
• B. If both assertion and reason are true and the reason is the correct explanation of the assertion.
• C. If both assertion and reason are true but the reason is not the correct explanation of the assertion.
• D. If assertion is true but reason is false.

Answer 1

The correct option is D If assertion is true but reason is false.

Assertion

Secondary constriction gives appearance of small fragment called the satellite.

Elaboration

Constrictions that occur in the chromosomes, other than the primary constriction are called secondary constrictions. These give rise to a part separated from the rest of the chromosome, called the satellite. Thus the given assertion is true.

Reason

Few chromosomes have non-staining secondary constrictions at a variable location.

Elaboration

Few chromosomes have non-staining secondary constrictions at constant locations. Thus the given reason is false.

Final answer

(C) If assertion is true but reason is false.