To solve this problem, we need to correctly match terms from List I to their definitions in List II. Let's break down each term and match them accordingly:
List I
Definition
List II
A
Two or more alternative forms of a gene
III
B
Cross of F1 progeny with homozygous recessive parent
IV
C
Cross of F progeny with any of the parents
I
D
Number of chromosome sets in plant
II
Term A: 'Two or more alternative forms of a gene' is defined as an allele. Thus, term A matches with option III.
Term B: 'Cross of F1 progeny with homozygous recessive parent' corresponds to a test cross. Therefore, term B matches with option IV.
Term C: 'Cross of F progeny with any of the parents' is a back cross. Hence, term C matches with option I.
Term D: 'Number of chromosome sets in plant' relates to ploidy. Thus, term D matches with option II.
Therefore, the correct matching is: A-III, B-IV, C-I, D-II