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NEET BIOLOGYEasy

Match List-I with List-II:

List-I A. Two or more alternative forms of a gene B. Cross of F1 progeny with homozygous recessive parent C. Cross of F1 progeny with any of the parents D. Number of chromosome sets in plant

List-II I. Back Cross II. Ploidy III. Allele IV. Test cross

A

A-III, B-IV, C-I, D-II

B

A-IV, B-III, C-II, D-I

C

A-III, B-I, C-IV, D-II

D

A-II, B-IV, C-I, D-III

Step-by-Step Solution

:

  • Allele (A-III): Genes which code for a pair of contrasting traits are known as alleles, i.e., they are slightly different forms of the same gene .
  • Test Cross (B-IV): A cross between an organism showing a dominant phenotype (like an F1 hybrid) and the homozygous recessive parent is called a test cross .
  • Back Cross (C-I): By definition, crossing the F1 progeny back to one of the parents is a back cross. A test cross is a specific type of back cross.
  • Ploidy (D-II): Refers to the number of sets of chromosomes. For example, polyploidy is described as an increase in a whole set of chromosomes .
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