(a) Helicase
(b) Polymerase
(c) ligase
(d) Isomerase
Answer- (a) Helicase
Which is not another name of Mitochondria? [HSC S B 2022]
(a) Sarcosome
(b) Phila
(c) Bioblast
(d) Mitoblast
Ans- (d) Mitoblast
What are the chemical components of ribosomes? [HSC S B 2022]
(a) DNA
(b) lipids
(c) RNA
(d) Sugars
Answer- (c) RNA
Responsible for formation of grooves in plasma membrane- [HSC S B 2022]
(a) Actin and myosin
(b) Actin and niacin
(c) Myosin and niacin
(d) Actin and cytosine
Ans- (a) Actin and myosin
Which enzyme is used to join DNA fragments? [HSC K B 2022]
(a) Restrictions
(b) Helicase
(c) Polymerase
(d) Ligase
Answer- (d) Ligase
DNA→RNA, to complete the process requires-
(i) RNA polymerase [Courtesy Bo: 2022]
(ii) Associated lipids
(iii) DNA template
(a) i and ii
(b) i and iii
(c) ii and iii
(d) i, ii and iii
Answer- (b) i and iii
RNA→Protein, what is the process called? [HSC K B 2022]
(a) Transcription
(b) Translation
(c) Transformation
(d) Replication
Answer- (b) Translation
What shape do sub-metacentric chromosomes have? [HSC K B 2022]
(a) I
(b) J
(c) L
(d) V
Answer- (c) L
What is the light layer of cytoplasm surrounding the cell cavity called? [HSC K B 2022]
(a) Hyaloplasm
(b) Ectoplasm
(c) Endoplasm
(d) Tonoplasm
Answer- (d) Tonoplasm
Which is the protein factory of the cell? [HSC K B 2022]
(a) Ribosome
(b) Garbage
(c) Lysosomes
(d) Endoplasmic reticulum
Ans- (a) Ribosome