Biology Mcqs

Lampbrush chromosomes are found inside _______?

A. Salvary glands of Drosophila
B. Salvary gland of silk moth
C. Oocytes of frog
D. Nucleus of man

A normal metaphase chromosome with a midial centromere is ________?

A. Metacentric
B. Sub-metacentric
C. Acrocentric
D. Telocentric

The term ‘gene’ was first used by _______?

A. Johannsen
B. Mendel
C. Lemark
D. Cuvier

Wilkins X-ray diffraction showed the diameter of the DNA helix as ________?

A. 10A
B. 20A
C. 30A
D. 40A

Term allele was coined by?A. Negalli
B. Bitson
C. Dixon
D. Robert Brown

 

First time crossing over was observed in ___________?A. 1811
B.1927
C. 1911
D. 1990

 

programmed death of cells is called _____________________?A. Necrosis
B. Apoptosis
C. Blood cancer
D. All of these

 

Which Of The Following Produces Harmful Gases_________?A. Plants
B. Motor Vehicles
C. Bacteria
D. None of these

 

Smallest bone of human body is?A. vomer
B. stapes
C. navicular
D. occipital

 

The skull contains?A. 18 bones
B. 20 bones
C. 22 bones
D. 28 bones