Question

Recognise the figure and find suitable matching.

1. ‘a’ attacks on an eukaryotic organism while ‘b’ attacks on a prokaryotic organism.

2. ‘a’ has ssRNA as genetic material while ‘b’ has dsDNA as genetic material.

3. ‘a’ belongs to Protista and ‘b’ belongs to Monera.

4. Both ‘a’ and ‘b’ are acellular organisms.

Among these, correct statements are

• A. 2 and 4
• B. 1, 2 and 4
• C. 1 and 2
• D. 1, 3 and 4

Answer 1

The correct option is B 1, 2 and 4

Correct statements

Statement 1: ‘a’ attacks on an eukaryotic organism while ‘b’ attacks on a prokaryotic organism.

Elaboration: ‘a’ is TMV that attacks a tobacco plant which is an eukaryote. ‘b’ is a Bacteriophage that attacks on Bacteria which is a prokaryote. Hence, statement 1 is correct.

Statement 2: ‘a’ has ssRNA as genetic material while ‘b’ has dsDNA as genetic material.

Elaboration: TMV has ssRNA as genetic material whereas Bacteriophage has dsDNA as genetic material. Hence, statement 2 is correct.

Statement 4: Both ‘a’ and ‘b’ are acellular organisms.

Elaboration: Viruses are an exception to cell theory. They are known to be acellular as they lack proper cellular structure. Hence, statement 4 is correct.