481.
Okazaki fragments are synthesised on
A
Leading strands of DNA only
B
Lagging strands of DNA only
C
Both leading and lagging strands of DNA
D
Complementary DNA
Answer :
Lagging strands of DNA only
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482.
Which of the following is a main source of cellular membrane
A
Endoplasmic reticulum
B
Golgi body
C
Mitochondria
D
Nucleus
Answer :
Endoplasmic reticulum
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483.
Nucleic acids are made up of
A
Amino acids
B
Pentose sugars
C
Nucleosides
D
Nucleotides
Answer :
Nucleotides
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484.
Which of the following subtances are stored in Aleuropladt
A
Starch
B
Oil and Lipids
C
Proteins
D
Water and Oil
Answer :
Proteins
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485.
Who propounded the theory one gene one enzyme one chemical reaction
A
Watson & Crick
B
Greorge Beadle ad Edward Tatum
C
Abraham Trembley
D
T.H. Morgan
Answer :
Greorge Beadle ad Edward Tatum
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486.
Which of the following nucleic acids is present in an organism having 7°S ribosomes only?
A
Double stranded circular DNA with histone proteins
B
Single stranded DNA with protein coat
C
Double stranded circular naked DNA
D
Double stranded DNA enclosed in nuclear membrane
Answer :
Double stranded circular naked DNA
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487.
Code in RNA corresponding to AGCT in DNA
A
TACA
B
UCGA
C
TCGA
D
AGUC
Answer :
UCGA
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488.
The globular proteins undergo structural changes, in response to extremes of pH or temperature, are called
A
Renaturation
B
Denaturation
C
Combination
D
Both A and B
Answer :
Denaturation
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489.
Resins are
A
Cell wall degradation products
B
Alkaloids
C
Glycosidic derivative
D
Oxidation products of essential oils
Answer :
Oxidation products of essential oils
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490.
A bivalent consists of
A
two chromatids and one centromere
B
two chromatids and two centromeres
C
four chromatids and two centromeres
D
four chromatids and four centromeres
Answer :
four chromatids and two centromeres
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