STD 12 - 5. molecular basis of inheritance - CBSE STD 12 Science Biology Questions - Vidyadip

Question types

STD 12 - 5. molecular basis of inheritance question types

501 questions across 1 question group — pick any mix to generate a Biology paper with step-by-step answer keys.

501

Questions

1

Question groups

5

Question types

M.C.Q (1 Marks)

Sample Questions

STD 12 - 5. molecular basis of inheritance questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark

Match List $I$ with List $II$:Choose the correct answer from the options given below :

List $I$	List $II$
$A$ $RNA$ polymerase $III$	$I$ snRNPs
$B$ hline Termination of transcription	$II$ Promotor
$C$ Splicing of Exons	$III$ Rho factor
$D$ $TATA$ box	$IV$ SnRNAs, tRNA

A
$ A-III, B-II, C-IV, D-I$
B
$ A-III, B-IV, C-I, D-II$
✓
$A-IV, B-III, C-I, D-II$
D
$A-II, B-IV, C-I, D-III$

Answer: C.

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Q 2M.C.Q (1 Marks)1 Mark

Match List $I$ with List $II$ .

List $I$	List $II$
$A$. Frederick Griffith	$I$. Genetic code
$B$. Francois Jacob and Jacque Monod	$II$. Semi-conservative mode of DNA replication
$C$. Har Gobind Khorana	$III$. Transformation
$D$. Meselson and Stahl	$IV$. Lac operon

Choose the correct answer from the options given below:

✓
$A-III, B-IV, C-I, D-II$
B
$A-II, B-III, C-IV, D-I$
C
$A-IV, B-I, C-II, D-III$
D
$A-III, B-II, C-I, D-IV$

Answer: A.

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Q 3M.C.Q (1 Marks)1 Mark

The lactose present in the growth medium of bacteria is transported to the cell by the action of

A
Acetylase
✓
Permease
C
Polymerase
D
Beta-galactosidase

Answer: B.

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Q 4M.C.Q (1 Marks)1 Mark

Which one is the correct product of $DNA$ dependent $RNA$ polymerase to the given template?

$3$'$TACATGGCAAATATCCATTCA5'$

A
$5'AUGUAAAGUUUAUAGGUAAGU3'$
B
$5'AUGUACCGUUUAUAGGGAAGU3'$
C
$5'ATGTACCGTTTATAGGTAAGT3'$
✓
$5'AUGUACCGUUUAUAGGUAAGU3'$

Answer: D.

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Q 5M.C.Q (1 Marks)1 Mark

A transcription unit in $DNA$ is defined primarily by the three regions in $DNA$ and these are with respect to upstream and down stream end;

A
Structural gene, Transposons, Operator gene
B
Inducer, Repressor, Structural gene
✓
Promotor, Structural gene, Terminator
D
Repressor, Operator gene, Structural gene

Answer: C.

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