List of practice Questions

Which of the following enzyme is defective in galactosemia—a fatal genetic disorder in infants?

Match List I with List II:

List I (Vitamin)	List II (Disorder)
(A) Vitamin-A	(I) Night blindness
(B) Vitamin-D	(II) Scurvy
(C) Vitamin-C	(III) Fat-soluble vitamin
(D) Vitamin-K	(IV) Blood clotting

Choose the correct answer from the options given below:

Identify the correct sequence of the given intermediates formed during glycolysis:
(A) Fructose 1,6-biphosphate
(B) Fructose 6 phosphate
(C) Lactate
(D) Phosphoenolpyruvate
Choose the correct answer from the options given below:

Identify the correct sequence of the given enzymes involved in the TCA cycle:
(A) Aconitase
(B) Fumarase
(C) Malate dehydrogenase
(D) α-ketoglutarate dehydrogenase
Choose the correct answer from the options given below:

Which of the following is not a fluorescence dye?

The technique used to identify the specific DNA in bacterial colonies is:

Which metal is used for electron beam generation in scanning electron microscopy?

What is the role of sodium dodecyl sulfate (SDS) in protein electrophoresis?
(A) Add net negative charge to the protein
(B) Separate lipids on the basis of their molecular weight
(C) Modify native conformation of a protein
(D) Allows direct destaining of the proteins
Choose the correct answer from the options given below:

Isoelectric focusing allows separation of the proteins according to their:

Match List I with List II:

List I	List II
(A) Western Blotting	(II) Protein identification
(B) Southern Blotting	(I) DNA identification
(C) Northern Blotting	(IV) RNA identification
(D) Yeast two-hybrid system	(III) Protein-protein interaction

Choose the correct answer from the options given below:

Arrange the given steps involved in polymerase chain reaction (PCR):
(A) Denaturation
(B) Annealing
(C) Extension
(D) Cycling
Choose the correct answer from the options given below:

Vertical gel electrophoresis is routinely used for the separation of:

Which is not a unit of radioactivity?

In the technique called centrifugation, the centrifugal field (G) is calculated as:

Number of chromosomes present in Arabidopsis thaliana is:

What percentage of genes are found in the human genome?

Match List I with List II:

List I	List II
(A) Histone erasers	(III) Deacetylases
(B) Histone readers	(IV) Bromodomain proteins
(C) Histone writers	(I) Methyltransferase
(D) DNA unwinding	(II) Topoisomerase

Choose the correct answer from the options given below:

Nucleosome is basically composed of:
(A) Histone core
(B) Linker histone
(C) Core DNA
(D) Linker DNA
Choose the correct answer from the options given below:

Arrange according to their lower to higher genome size:
(A) Lambda (λ)
(B) T4
(C) Φ x 174
(D) T7
Choose the correct answer from the options given below:

With the addition of linking number (Lk) by +2 to a relaxed DNA consisting of Lk = 200, which of the following occurs?

What are the functions of topoisomerases?

Arrange the given processes involved in the nitrogen cycle:
(A) Ammonia formation
(B) Organic nitrogen formation
(C) Soil organic nitrogen formation
(D) Nitrate formation
Choose the correct answer from the options given below:

The complete proteins produced by an organism at any one time is called:

Retroviruses are enveloped viruses that can be engineered to deliver how many bases of single-stranded RNA?

Adenoviruses are frequently used in gene delivery experiments. Their average genome size is 36,000 base pairs. Of their total DNA content, up to how much of the adenovirus genome can be replaced by foreign DNA?