The enzymes taking part in joining two ends of DNA is
(A) Ligase
(B) Polymerase
(C) Gyrase
(D) Helicase

An enzyme that joins the ends of two strands of nucleic acids is a

Enzyme which can synthesize DNA from RNA is (a) Reverse transcriptase (b) DNA polymerase (c) Protease (d) Integrase

which is an enzyme that joins two segments of replicated DNA?

Which one does not take part in breakdown of starch? (a) Invertase (b) Lipase (c) Amylase (d) Diastase

If two diameters of a circle intersect each other at right angles, then quadrilateral formed by joining their end points is a (a) rhombus (b) rectangle (c) parallelogram (d) square

Which movable chitinous plate is joined with dorsal part of head :- (a) Labrum (b) Clypeus (c) Labium (d) Forehead or frons

Digestive enzymes are (a) hydrolases (b) oxidoreductases (c) transferases (d) lyases

Polymerase chain reaction (PCR) is used for the detection of (A) Genital herpes (B) Malaria (C) Small pox (D) Measles

What are correctly matched : 1. Ligase - Joins short segments of DNA together 2. DNA polymerase - cuts DNA at specific site 3. Helicase - breaks hydrogen bond between complementary pairs during DNA replication

Which of the following is called molecular scissors in context of biotechnology? (a) DNA ligase (b) Restriction exonucleases (c) DNA polymerase (d) Restriction endonucleases