Biology Past Paper Questions

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Q 951:In these cells, haploid number of chromosomes is:
A
Spermatogonium
B
Primary spermatocyte
C
Secondary spermatocyte
D
All of these
Rawalpindi, 2017
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Q 952:In which branch of biology, we study inheritance:
A
Histology
B
Biometry
C
Genetics
D
Ecology
Rawalpindi, 2017
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Q 953:Insulin and glucagon are produced in the:
A
Pituitary gland
B
Thyroid
C
Pancreas
D
Kidney
Rawalpindi, 2017
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Q 954:Most of the gaseous exchange in a leaf occurs through:
A
Stomata
B
Roots
C
Lenticels
D
Guard cells
Rawalpindi, 2017
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Q 955:Pollination is the transfer of pollen grain from:
A
stigma to anther
B
carpel to calyx
C
Anther to stigma
D
Stigma to stigma
Rawalpindi, 2017
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Q 956:The blood vessels which carry blood back to the heart are called.
A
Arteries
B
Capillaries
C
Veins
D
Arterioles
Rawalpindi, 2017
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Q 957:Light reactions take place in.
A
Stroma
B
Thylakoids
C
Cytosol
D
Mitochondria
Rawalpindi, 2017
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Q 958:Lock and key model was proposed by
A
Koshland
B
Robert Brown
C
Emil Fisher
D
Robert Brown
Rawalpindi, 2017
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Q 959:In which phase of cell cycle spindle fibers are formed?
A
G2 phase
B
Interphase
C
Prophase
D
Metaphase
Rawalpindi, 2017
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Q 960:In plants, major component of cell wall is.
A
Cellulose
B
Chitin
C
Peptidoglycan
D
Cholesterol
Rawalpindi, 2017
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Total MCQs: 1434Page 96 of 144
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