Biology Test 33...

In the following palindromic base sequences of DNA, which one can be cut easily by particular restriction enzyme?

Assertion (A): In pea plants, yellow seed color (Y) is dominant over green seed color (y).

Reason (R): Yellow-seeded plants can only be produced by the YY or Yy genotypes.

Which of the following is not a desirable feature of a cloning vector?

Assertion (A): All daughters of a man affected by hemophilia will be carriers of the disease.

Reason (R): Hemophilia is a sex-linked recessive disorder carried on the X chromosome.

Which of the following is a correct sequence of steps in a PCR (Polymerase Chain Reaction)?

Which of the following enzymes is not involved in the process of DNA replication?

Plasmid pBR322 has Pstl restriction enzyme site within gene amp^R that confers ampicillin resistance. If this enzyme is used for inserting a gene for β-galactoside production and the recombinant plasmid is inserted in an E.coli strain

A mutation that involves the insertion or deletion of a nucleotide in the DNA sequence can lead to:

During the process of gene amplification using PCR, if very high temperature is not maintained in the beginning, then which of the following steps of PCR will be affected first?

Which of the following is a characteristic feature of the lac operon in E. coli?