List I | List II | ||
---|---|---|---|
A | Two or more alternative forms of a gene | I | Back cross |
B | Cross of F1 progeny with homozygous recessive parent | II | Ploidy |
C | Cross of F progeny with any of the parents | III | Allele |
D | Number of chromosome sets in plant | IV | Test cross |
- A refers to ”two or more alternative forms of a gene,” which are called alleles (III).
- B refers to ”cross of F1 progeny with homozygous recessive parent,” which is known as a test cross (IV).
- C refers to ”cross of F1 progeny with any of the parents,” typically called a back cross (I).
- D refers to ”number of chromosome sets in plant,” which is ploidy (II).
The following diagram shown restriction sites in E. coli cloning vector pBR322. Find the role of ‘X’ and ‘Y’gens :