Question

Consider the given figure and answer the following questions.

 (a) Which type of life cycle pattern is represented by the given figure? 

(b) Identify A and B in the given figure and describe alternation of generation between A and B. 

(c) Give two examples that exhibit this type of life cycle pattern.

Answer 1

(a) In the given figure, P, Q, R, S and T represents capsid, Collar, Tail sheath, Basal plate and Tail fibre respectively. 

(b) The genetic material usually present in T₂ bacteriophage is double stranded DNA. 

(c) Labelled part P represents sheath or capsid. It is the proteinaceous covering around the bacteriophage which protects the nucleoid from damage (by physical or chemical