Top 80+ Solved Biotechnology Principles and Processes MCQ Questions Answer
Q. The enzymes that cuts specifically recognition sites in the DNA is known as
a. DNA ligase
b. DNA Polymerase
c. Reverse transcriptase
d. Restriction endonuclease
Q. DNA can be introduced into any cell by
a. Injection
b. being complexed with Ca salts
c. gel electrophoresis
d. being placed along with
Q. Ability of a plant or animal cell to repeatedly divide and differentiate into a complete organism is :-
a. cloning
b. DNA finger printing
c. cellular totipotency
d. mitosis
Q. Restriction endonuclease is also known as -
a. molecular glue
b. DNA ligase
c. DNA Polymerase
d. molecular scissors
Q. Extra chromosomal small cirular double stranded DNA molecule in a bacterial cell is stranded DNA molecule in bacterial cell is
a. Plastid
b. Plasmid
c. Mitochondrion
d. Chloroplast
Q. Introduction of foreign genes into plant or animal cells using micropipettes is
a. Electroporation
b. Chemical - mediated genetransfer
c. microinjection
d. Particle gun
Q. Which one of the following is releated with genetic engineering ?
a. Mulations
b. Ribosomes
c. Mitochondria
d. Plasmids
Q. In bacteria, genes for antibiotic resistance are usually located in
a. Plasmids
b. Cytoplasm
c. Mitochondria
d. Nucleus
Q. A technique used to make numerous copies of a specific segment of DNA quickly and accurately
a. Translation
b. transcription
c. Ligase chain reaction
d. polymerase chain reaction
Q. The enzyme that cleaves DNA at specific sites, producing sticky ends is called
a. Restriction endonuclease
b. Cleaving enzyme
c. Lysing enzyme
d. Exonuclease
Q. Restriction endonucleases are used in genetic engineering because -
a. They can degrade harmful proteins
b. They can join DNA fragments
c. They can cut DNA at specific base sequences
d. They can cut DNA at variable sites
Q. The sticky ends of Fragmented DNA molecules are made up of
a. calcuim salts
b. endo nuclease
c. un paired bases
d. methyl groups