(a) Mammals
(b) Sive cells
(c) Phloem parenchyma
(d) Companion cells
Answer-(b) Sive cell
Which cell is missing the nucleus? [Medical 1990-91]
(a) Parenchyma
(b) Companion cells
(c) Rakshikosh
(d) Sivenal
Answer-(d) Sivenal
Which organelle does not exist in animal cells? [Medical 1989-90]
(a) Ribosome
(b) Mitochondria
(c) Plastid
(d) Golgibody
Answer-(c) Plastid
DNA molecules exist in which? [Medical 1989-90]
(a) Cytoplasm
(b) Nucleus
(c) Cell envelope
(d) Mitochondria
Ans-(d) Mitochondria
DNA is very important in heredity, because it- [Medical 1989-90]
(a) Large molecules
(b) Nucleated
(c) Composed of nitrogen
(d) Creates contrast
Answer (d) Creates contrast
Which is true? [Medical 1988-89]
(a) Plant cells contain centrosomes
(b) Stored food glycogen in plants
(c) Ribosomes are uncoated
(d) Ribosomes are called the energy center of the cell
Ans-(c) Ribosomes are non-enveloped
Which one does not have plastids? [Medical 1988-89]
(a) Fungi
(b) Algae
(c) Spirogyra
(d) All of them
Answer-(a) Fungi
What is the color of xanthophyll? [Medical 1988-89]
(a) Green
(b) Red
(c) Orange
(d) Yellow
Answer-(d) Yellow
Who invented the microscope? [Medical 1988-89]
(a) Alexander Fleming
(b) Leuven Hook
(c) Edward Jenner
(d) None
Answer (b) Leuven Hook
What elements contain DNA? [Medical 1988-89]
(a) Cytoplasm
(b) Chromosomes
(c) Plasma membrane
(d) Golgibody
Answer (b) Chromosomes