Q. Unlike the 23 pairs of chromosomes in human cells, chimpanzees have 24 pairs of chromosomes.

View solution

Q. When was the first correlation between a chromosomal deletion and human disorder first developed?

View solution

Q. Partial trisomy is the presence of _____ copies of a gene.

View solution

Q. The cry-of-the-cat syndrome is due to a defect in chromosome __________

View solution

Q. Lactose can be a nutrient source for bacteria, it is a _____________________

View solution

Q. The first step in catabolism of lactose by the bacteria is ________________ of a linkage bond.

View solution

Q. Under minimal conditions, the cell has fewer than 5 copies of enzyme β-galactosidase.

View solution

Q. Enzymes of __________________________ are clustered together in a bacterial operon.

View solution

Q. When was the operation mechanism of a bacterial operon first elucidated?

View solution

Q. In a bacterial operon, which is located downstream of the structural genes?

View solution

Q. The structural genes in an operon lie adjacent to one another.

View solution

Q. Which is a DNA-binding protein?

View solution

Q. The repressor protein is encoded by _________________

View solution

Q. The capability of the repressor to bind the operator depends upon _____________

View solution

Q. The lac operon consists of ____ structural genes.

View solution

Q. Which of the following acts as an inducer in the lac operon?

View solution

Q. The lac operon is under positive control, a phenomenon called _________________

View solution

Q. Which of the following acts as a co-repressor in tryptophan operon?

View solution

Q. In bacteria, mRNAs bound to small metabolites are called ______________

View solution

Q. The sheep Dolly was cloned in the year ___________

View solution