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1
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Name the enzyme that facilitates opening of DNA helix during transcription.
A
DNA polymerase
B
RNA polymerase
C
DNA helicase
D
DNA ligase
2
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Purines found both in DNA and RNA are:
A
Guanine and cytosine
B
Cytosine and thymine
C
Adenine and thymine
D
Adenine and guanine
3
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Expressed Sequence Tags (ESTs) refers to :
A
DNA polymorphism
B
Novel DNA sequences
C
Genes expressed as RNA
D
Polypeptide expression
4
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Match the following genes of the Lac operon with their respective produces :

(a) i gene (i) $$\beta $$-galactosidase
(b) z gene (ii) Permease
(c) a gene (iii) Repressor
(d) y gene (iv) Transacetylase

Select the correct option.
A
(a) (b) (c) (d)
(iii) (i) (iv) (ii)
B
(a) (b) (c) (d)
(iii) (iv) (i) (ii)
C
(a) (b) (c) (d)
(i) (iii) (ii) (iv)
D
(a) (b) (c) (d)
(iii) (i) (ii) (iv)
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Cell - The Unit of Life Biomolecules Cell Cycle and Cell Division Sexual Reproduction in Flowering Plants Microbes in Human Welfare Anatomy of Flowering Plants Transport in Plants Mineral Nutrition Respiration in Plants Biotechnology: Principles and Processes Biodiversity and Conservation The Living World Biological Classification Morphology of Flowering Plants Photosynthesis in Higher Plants Principles of Inheritance and Variation Molecular Basis of Inheritance Strategies for Enhancement in Food Production Biotechnology and It's Applications Organisms and Populations Environmental Issues Plant Kingdom Plant Growth and Development Ecosystem
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