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Question: Alfred Hershey and Martha Chase made a big contribution in proving DNA role as the hereditary molecu...

Alfred Hershey and Martha Chase made a big contribution in proving DNA role as the hereditary molecule. The experiment is shown in the diagram. A and C are the presence or absence of radioactivity detected in cells B and D are the presence or absence of radioactivity detected in supernatants cells. Identify, A, B, C and D –

A

A – No Radioactivity (35S) detected in cells;

B – Radioactivity (32S) detected in supernatant;

C – Radioactivity (35S) detected in cells; D – No Radiactivity in supernatant

B

A – Radioactivity (35S) detected in cells; B – No Radioactivity (35S) detected in supernatant; C – Radioactivity (32P) detected in cells; D – No Radiactivity in supernatant

C

A – No Radioactivity (35S) detected in cells;

B – Radioactivity (35S) detected in supernatant;

C – Radioactivity (35P) detected in cells; D – No Radiactivity in supernatant

D

A – No Radioactivity (35S) detected in cells;

B – Radioactivity (35S) detected in supernatant;

C – No Radioactivity (35P) detected in cells;

D – Radioactivity in supernatant

Answer

A – No Radioactivity (35S) detected in cells;

B – Radioactivity (35S) detected in supernatant;

C – Radioactivity (35P) detected in cells; D – No Radiactivity in supernatant