511. Ligase enzyme is used for

A Denaturation of DNA
B Splitting DNA into small bits
C Joining bits of DNA
D Digestion of lipids
Answer :   Joining bits of DNA
Discuss Question

512. Circular and double stranded DNA occurs in

A Golgibody
B Mitochondria
C Nucleus
D Ctytoplasm
Answer :   Mitochondria
Discuss Question

513. Polyribosomes are aggregates of

A ribosomes and rRNA
B only rRNA
C peroxisomes
D several ribosomes held together by string of mRNA
Answer :   several ribosomes held together by string of mRNA
Discuss Question

514. Elementary particles of mitochondria are

A F1 particles
B Ribosomes
C DNA
D Lysosomes
Answer :   F1 particles
Discuss Question

515. Electron microscope was invented by

A Knoll and Ruska
B Rudolph and Killiker
C C. P. Swanson
D None of the above
Answer :   Knoll and Ruska
Discuss Question

516. The name protoplasm was given by

A Hooke
B A.K. Sharma
C Schwann
D Purkinje
Answer :   Purkinje
Discuss Question

517. Procaryotic Ribosomes are 70 s, s refers to

A Svedberg unit
B Smallest unit
C Smooth
D Speed
Answer :   Svedberg unit
Discuss Question

518. To study the living cells without staining which of the following microscopes can be used

A SEM
B Fluorescent
C Phase contrast
D TEM
Answer :   Phase contrast
Discuss Question

519. Hammerling's experiments of Acetabularia involved exchanging

A cytoplasm
B nucleus
C rhizoid and stalk
D gametes
Answer :   rhizoid and stalk
Discuss Question

520. Chlorophyll in chlorolasts is located in

A Grana
B Pyrenoid
C Strome
D Both grana and stroma
Answer :   Grana
Discuss Question


Practice More MCQ Question on Biology Section