Principle Of Inheritance And Variation Question 443
Question: Assertion : Killer strain of Paramecium aurelia can kill sensitive strain. Reason : If sensitive strain is provided kappa particle, it becomes killer.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: B
Solution:
Paramecium aurelia has two strains : killer and sensitive.
The killer strain is able to kill the sensitive strain protist by means of chemical paramecin, secreted by minute cytoplasmic particles called kappa particle.
The sensitive strain protists do not have kappa particles.
The sensitive strain can also become killer if it receive sufficient kappa particles.
BETA
