List I | List II | ||
A | Frederick Griffith | I | Genetic code |
B | Francois Jacob & Jacque | II | Semi-conservative mode of DNA replication |
C | Har Gobind Khoran | III | Transformation |
D | Meselson & Stahl | IV | Lac operon |
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): A typical unfertilized, angiosperm embryo sac at maturity is 8-nucleate and 7-celled.
Reason (R): The egg apparatus has 2 polar nuclei.
In the light of the above statements, choose the correct answer from the options given below: