A recognition sequence usually ranges from ______ bases.

• A) 6-8
• B) 4-6
• C) 4-12
• D) 4-8

Restriction enzymes more commonly used belong to ______ group.

• A) Exonucleases
• B) Exo-Endo
• C) Type I endonucleases
• D) Type II endonucleases

_________ refers to the study of ancient human, animal and plant remains.

• A) Pathology
• B) Paleontology
• C) Parasitology
• D) Molecular Biology

Prenatal genetic diagnosis is not important for identification of ________.

• A) Chromosomal abnormality
• B) Familial disorder
• C) Inherited mutation
• D) Infectious diseases

Molecular Detection methods can facilitate in detection of ____in plants, animals and environment

• A) Radioactive elements
• B) Pathogens
• C) Pigments
• D) Trace element

Sequences of nucleotides which have a twofold axis of rotational symmetry is known as_______.

• A) Palindrome
• B) Restriction site
• C) Recognition site only
• D) Binding site

Enzyme that catalyzes the template dependent synthesis of DNA is known as __________.

• A) None of the given options
• B) DNA polymerase
• C) Helicase
• D) RNA polymerase

Endonucleases are classified in to _____ main classes.

• A) 4
• B) 2
• C) 6
• D) 3

Genomic fingerprinting is a _________ medicine technique used to identify individuals by characteristics of their DNA.

• A) Toxicology
• B) Regenerative
• C) Forensic
• D) Alternative

_______ enzymes have symmetrical recognition sequences but are of little value

• A) Type I
• B) Exonucleases
• C) Type III
• D) Type II

Which of the following statement is true about joining DNA molecule?

• A) DNA polymerase can repair the nicks produced after the association of cohesive ends of DNA strands
• B) DNA ligase can repair the nicks produced after the association of cohesive ends of DNA strands
• C)
• D)

Southern blot is for ________ Western blot is for ________ Northern blot is for _______.

• A) DNA- Protein-RNA
• B) RNA- DNA- Protein
• C) None of above
• D) DNA- RNA- Protein

Which of the following statement about DNA ligase is false?

• A) DNA ligase can repair the nicks produced after the association of cohesive ends of DNA strands
• B) DNA ligase seals single stranded nicks between opposite nucleotides in a duplex DNA
• C)
• D)

Which of the following is not true for Radioactive Probe - 32P?

• A) Hazardous
• B) Radioactive waste disposal regulations should not be followed
• C) Relatively cheap
• D) Sensitive

DNA Mutations can be identified by ________.

• A) Northern blotting
• B) Southern blotting
• C) Western blotting
• D) Eastern blotting

Which type of blotting is named after its inventor the British Biologist Edwin in (1975)?

• A) Eastern
• B) Southern
• C) Northern
• D) Western

What is true for Non-Radioactive Probe – biotin?

• A) Radioactive waste disposal regulations should be followed
• B) Hazardous
• C) Sensitive
• D) Relatively cheap

Which of the following is not a property of probe?

• A) Labeled material
• B) Detect a target
• C) Complementary to a region
• D) 20Kb-30Kb nucleotides

Which of the following molecule have a preformed cohesive end that can be used to insert blunt ended foreign DNA into vector?

• A) Adaptors
• B) Linkers
• C)
• D)

A change in one nucleotide may alter the nucleotide sequence so that the _______ fails to recognize and cleave at that site.

• A) Polymerase I,II,III
• B) Restriction endonuclease
• C) Helicase
• D) Taq polymerase