Question Detail

MIC 121 Protozoa Objective Question
Take CBT

Question

What is the primary characteristic that distinguishes a macronucleus from a micronucleus in ciliates like Paramecium?
Options
A Macronucleus is involved in genetic recombination, while micronucleus controls metabolism.
B Macronucleus controls vegetative activities, while micronucleus controls reproductive activities.
Correct Answer
C Macronucleus is typically smaller, and micronucleus is larger.
D Macronucleus is responsible for conjugation, while micronucleus is involved in binary fission.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The document explicitly states: 'Macronucleus: a large nucleus that controls the vegetative (everyday metabolic) activities of the cell, such as feeding, growth, and metabolism. Micronucleus: a smaller nucleus that controls reproductive activities, including the exchange of genetic material during conjugation.'

Hint

Recall the division of labor between the two types of nuclei in Paramecium.

Question Info

Course: MIC 121
Topic: Protozoa
Type: Objective
Difficulty: Not specified
Question 880 of 984
Previous Course Details Next