Question

Given is a diagram of a bacteriophage. In which one of the options all the four parts, $a$, $b$, $c$ and $d$ are correct.

• A. $a$ - Tail fibres, $b$ - Head, $c$ - Sheath, $d$ - Collar
• B. $a$ - Sheath, $b$ - Collar, $c$ - Head, $d$ - Tail fibres
• C. $a$ - Head, $b$ - Sheath, $c$ - Collar, $d$ - Tail fibres
• D. $a$ - Collar, $b$ - Tail fibres, $c$ - Head, $d$ - Sheath

Answer 1

Answer: (C)

$a$ - Head, $b$ - Sheath, $c$ - Collar, $d$ - Tail fibres

A bacteriophage, also known informally as a phage, is a virus that infects and replicates within bacteria and archaea. The bacteriophage consists of a polyhedral head, a short collar and a helical tail.

So the parts of the given picture as followed:

a- Head, b-Sheath, c- Collar and d- Tail fibres

Hence the correct answer is option C.