621.
Arrangement of three successive bases in the genetic code signifies
A
Protein
B
Nucleic acid
C
Plasmids
D
Amino acids
Answer :
Amino acids
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622.
One gene one enzyme hypothesis was proposed by
A
Beadle and Tatum
B
Jacob and Monod
C
Lederberg
D
Watson and Crick
Answer :
Beadle and Tatum
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623.
Exceptionally large chromosome
A
Lampbrush chromosome
B
Polytene chromosome
C
Megachromosomes
D
All of the above
Answer :
All of the above
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624.
What replaces thymine in RNA
A
Guanine
B
Adenine
C
Uracil
D
Water
Answer :
Uracil
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625.
Bead kike structure found on chromosome are called
A
Chromomeres
B
Chromonemata
C
Chromonema
D
Centriole
Answer :
Chromomeres
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626.
Study of cell structure and function is called
A
Oncalogy
B
Cytogenetics
C
Molecular biology
D
Cell biology
Answer :
Cell biology
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627.
Genes located on mitochondrial DNA
A
generally show maternal inheritance
B
are always inherited from the male parent
C
show biparental inheritance like the nuclear genes
D
are not inherited
Answer :
generally show maternal inheritance
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628.
Starch grain present in latex are
A
Prismatic
B
Rod shaped
C
Oval shaped
D
Dumble shaped
Answer :
Dumble shaped
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629.
In which cell-surface junction fused membrane reveals five-layered strucre
A
Desmosomes
B
Zonaoccludence
C
Gap-junction
D
Plasmidesmata
Answer :
Zonaoccludence
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630.
Which one of the following enzyme is responsible for the synthesis of DNA from RNA
A
DNA polymerase
B
RNA polymerase
C
Reverse rtranscriptase
D
DNA ligase
Answer :
Reverse rtranscriptase
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