Question

Match List-I with List-II. List-I: A. Birds, B. Reptiles, C. Sponges, D. Bacteria. List-II: I. 4500 million nucleotide pairs, II. 100 million nucleotide pairs, III. 2 million nucleotide pairs, IV. 2000 million nucleotide pairs.

• A. A-I, B-II, C-IV, D-III
• B. A-I, B-IV, C-II, D-III
• C. A-IV, B-I, C-II, D-III
• D. A-II, B-I, C-IV, D-III

Hint:

Bacteria generally have small genomes, while eukaryotes such as birds and reptiles have much larger genomes.

Answer 1

The Correct Option is C

Concept:
Genome size varies greatly among organisms. Higher organisms usually have larger genomes than bacteria, but genome size is not always directly proportional to organism complexity.

Step 1: Match bacteria.
Bacterial genomes are comparatively small and may contain only a few million nucleotide pairs. \[ D \rightarrow III \]

Step 2: Match birds.
Bird genomes are commonly around a few billion base pairs, close to \(2000\) million nucleotide pairs. \[ A \rightarrow IV \]

Step 3: Match reptiles.
Reptiles may have comparatively larger genomes, around \(4500\) million nucleotide pairs. \[ B \rightarrow I \]

Step 4: Match sponges.
Sponges have smaller eukaryotic genomes compared to many vertebrates, around \(100\) million nucleotide pairs. \[ C \rightarrow II \] Therefore, the correct matching is: \[ A-IV,\ B-I,\ C-II,\ D-III \] \[ \therefore \text{Correct Answer is (C)} \]