Exam (elaborations)
Exam (elaborations) Genetic material
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This document contains relevant questions with answers to enhance your knowledge of concepts of genetic material or genetics
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Questions from Competitive Examination1 Which type of DNA is found in bacteria ? (CBSE 1996)
(a) Straight DNA (b) Helical DNA
(c) Circular free DNA (d) Membrane bound DNA
2 The maximum formation of m-RNA occurs in (CBSE 1996)
(a) Cytoplasm (b) Nucleolus
(c) Ribosome (d) Nucleoplasm
3 Which purine base is found in RNA: (CBSE 1996)
(a) Cytosine (b) Guanine
(c) Thymine (d) Uracil
4 What is the genetic material in influenza virus! (CBSE 1996)
(a) RNA (b) Single helix DNA
(c) Double helical DNA (d) Noen of these
5 Which typical stage is known for DNA replication: (CBSE 1996)
(a) Metaphase (b) G-phase
(c) S-phase (d) G-phase
6 Radio-tracer technique shows that DNA is in (CBSE 1996)
(a) Single-helix stage (b) Double-helix stage
(c) Multi-helix stage (d) None of these
7 DNA synthesis can be specifically measured by estimating the incorporation of radio-labelled:
(CBSE 1997)
(a) Uracil (b) Adenine
(c) Thymine (d) Deoxyribose sugar
8 The hereditary material present in the bacterium E.coli is: (CBSE 1997)
(a) Single stranded RNA (b) Double stranded RNA
(c) Single stranded DNA (d) Double-stranded DNA
9 The RNA that pick up specific amino acid from amino acid pool in the cytoplasm to ribosome
during protein synthesis is called : (CBSE 1997)
(a) m-RNA (b) t-RNA
(c) r- RNA (d) RNA
10 During cvell division in apical meristem, the nuclear membrane (CBSE 1997)
(a) Metaphase (b) Anaphase
(c) Telophase (d) Cytokinesis
, 11 The DNA of E Coli is (CBSE 1996)
(a) 80 % C2H4 and 20 % CO2
(b) 80% CO2 and 20% CH2
(c) 80% CH4 and 20% CO2
(d) 80% CO2 and 20% O2
12 Human Immuno deficiency virus (HIV) is a protein coat and a: (CBSE 1998)
(a) Single stranded DNA
(b) Single stranded RNA
(c) Double stranded DNA
(d) Double stranded RNA
13 The DNA when AGCT occours, their association is according to which of the following pair
(CBSE 1999)
(a) AC-GT
(b) AG-CT
(c) AT-GC
(d) All These
14 The premococcocus experiment proves that :
(a) DNA is a genetic material
(b) RNA sometimes controls the production of DNA and protiens
(c) Bacteria undergo binary fission
(d) Bacteria do not reproduce sexually
15 DNA is mainly found in
(a) Nucleus only
(b) Cytoplasm only
(c) Nucleus and cytoplasm
(d) Nucleolus
16 In prokaryotes the genetic material is:
(a) Linear DNA without histones
(b) Linear DNA with histones
(c) Circular DNA with histones
(d) Circular DNA without histones
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