Question No:1
Major packaging material of chromosome is
(A) DNA
(B) RNA
(C) Histones
(D) All
Question No:2
The part of chromosome at primary constriction area is called
(A) Kinetochore
(B) Centromere
(C) Chromatin
(D) Nucleus
Question No:3
Proteinaceous disc shaped structures associated with centromere of a chromosome are
(A) Kinetochores
(B) Histones
(C) Nucleoproteins
(D) Telomeres
Question No:4
Component of a chromosome which divides it into two arms is
(A) Primary constriction
(B) Secondary constriction
(C) Nuclear organizer
(D) Trebent
Question No:5
A chromosome with two equal arms is
(A) Sub – metacentric
(B) Metacentric
(C) Telocentric
(D) Acrocentric
Question No:6
Chromosome with two unequal arms is
(A) Metacentric
(B) Sab – metacentric
(C) Acrocentric
(D) (b) and (c)
Question No:7
A chromosome with one shorter arm and one longer arm is
(A) Metacentric
(B) Sub-metacentric
(C) Acrocentric
(D) Telocentric
Question No:8
A chromosome with one extremely short and one very long arm is
(A) Acrocentric
(B) Telocentric
(C) Metacentric
(D) Sub-metacentric
Question No:9
A chromosome with only one arm is
(A) Acrocentric
(B) Telocentric
(C) Metacentric
(D) Sub-metacentric
Question No:10
The non – staining constriction at a constant location in a specific chromosome is
(A) Primary constriction
(B) Secondary constriction
(C) Satellite
(D) (b) and (c)
Question No:11
The small rounded knob like fragment in a chromosome lying beyond the secondary constriction is
(A) Centromere
(B) Kinetochore
(C) Satellite
(D) Telomere
Question No:12
Membrane bound minute vesicles with enzymatic matrix present in both plant and animal cells are
(A) Microbodies
(B) Microsomes
(C) Ribosomes
(D) Plastids
Question No:13
The cell organelle which facilitates locomotion in certain eukaryotic animal cell is
(A) Cilia
(B) Flagella
(C) Centrosome
(D) Centriole
Question No:14
The cell organelle which helps in oxidative phosphorylation is
(A) Chloroplast
(B) Mitochondria
(C) Ribosome
(D) ER
Question No:15
Energy transducing cell organelles in a cell are
(A) Chloroplast
(B) Mitochondria
(C) Ribosome
(D) (a) and (b)
Question No:16
90 percent of the volume of the mature plant cell is occupied by
(A) Cytoplasm
(B) Nucleus
(C) Vacuole
(D) Cell membrane
Question No:17
Nucleus as a cell organelle was first described by
(A) Robert Hooke
(B) Robertson
(C) Rausburg
(D) Robert Brown
Question No:18
Na+ and K+ pumping across the membrane is a/an
(A) Passive transport
(B) Active transport
(C) Diffusion
(D) none of these
Question No:19
The isolation of individual organelles from cell homogenates is achieved through
(A) X-ray diffraction
(B) Chromatography
(C) Differential centrifugation
(D) Micro spectrophotometry
Question No:20
Which technique, other than electron microscopy is used to study the fine structure of a molecule
(A) Plasmolysis
(B) Chromatography
(C) Crystallography
(D) Obliteration