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BIOXII06: MOLECULAR BASIS OF INHERITANCE

343115 Assertion :
DNA and RNA is long polymers of Nucleotides.
Reason :
A nucleoside has three components - a nitrogenous base, a pentose sugar and a phosphate group.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Both Assertion and Reason are incorrect

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343116 Select the correct statement

1 Two strands of DNA are parallel and complimentary

2 Two strands of DNA are anti- parallel and non-complimentary

3 Two strands are anti- parallel and complimentary

4 All the above

Explanation:

Two strands of DNA are anti parallel each other. Both the strands run parallel but in opposite directions. One chain has polarity $5^{'} \to 3^{'}$ whereas other has $3^{'} \to 5$ '. Both strands are complimentary to each other, it means that both strands have complimentary base pairs.

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343117 The RNA which constitutes 70-80 % of the total RNA is

1 Messenger RNA

2 Transfer RNA

3 Template RNA

4 Ribosomal RNA

Explanation:

Ribosomal RNA is the most abundant RNA (i.e., 70-80 % of total) and are of 3-4 types. $23 S, 28 S$ are the longest of all RNAs. rRNA is a constituent of ribosomes. It lies coiled in between and over the protein molecules.

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343118 Total amount $A$ and $T$ in DNA is $45 %$ Amount of guanine will be ...

1

22.5 %

2

27.5 %

3

35 %

4

55 %

Explanation:

$A + T + G + C = 100 %$
Since $A + T = 45 %$
$45 % + G + C = 100 %$
$G + C = 100 % - 45 %$
$G + C = 55 %$
$G / C = 55 / 2$
$G = 27.5 %$
Hence answer is $27.5 %$

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343115 Assertion :
DNA and RNA is long polymers of Nucleotides.
Reason :
A nucleoside has three components - a nitrogenous base, a pentose sugar and a phosphate group.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Both Assertion and Reason are incorrect

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343116 Select the correct statement

1 Two strands of DNA are parallel and complimentary

2 Two strands of DNA are anti- parallel and non-complimentary

3 Two strands are anti- parallel and complimentary

4 All the above

Explanation:

Two strands of DNA are anti parallel each other. Both the strands run parallel but in opposite directions. One chain has polarity $5^{'} \to 3^{'}$ whereas other has $3^{'} \to 5$ '. Both strands are complimentary to each other, it means that both strands have complimentary base pairs.

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343117 The RNA which constitutes 70-80 % of the total RNA is

1 Messenger RNA

2 Transfer RNA

3 Template RNA

4 Ribosomal RNA

Explanation:

Ribosomal RNA is the most abundant RNA (i.e., 70-80 % of total) and are of 3-4 types. $23 S, 28 S$ are the longest of all RNAs. rRNA is a constituent of ribosomes. It lies coiled in between and over the protein molecules.

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343118 Total amount $A$ and $T$ in DNA is $45 %$ Amount of guanine will be ...

1

22.5 %

2

27.5 %

3

35 %

4

55 %

Explanation:

$A + T + G + C = 100 %$
Since $A + T = 45 %$
$45 % + G + C = 100 %$
$G + C = 100 % - 45 %$
$G + C = 55 %$
$G / C = 55 / 2$
$G = 27.5 %$
Hence answer is $27.5 %$

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343115 Assertion :
DNA and RNA is long polymers of Nucleotides.
Reason :
A nucleoside has three components - a nitrogenous base, a pentose sugar and a phosphate group.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Both Assertion and Reason are incorrect

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343116 Select the correct statement

1 Two strands of DNA are parallel and complimentary

2 Two strands of DNA are anti- parallel and non-complimentary

3 Two strands are anti- parallel and complimentary

4 All the above

Explanation:

Two strands of DNA are anti parallel each other. Both the strands run parallel but in opposite directions. One chain has polarity $5^{'} \to 3^{'}$ whereas other has $3^{'} \to 5$ '. Both strands are complimentary to each other, it means that both strands have complimentary base pairs.

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343117 The RNA which constitutes 70-80 % of the total RNA is

1 Messenger RNA

2 Transfer RNA

3 Template RNA

4 Ribosomal RNA

Explanation:

Ribosomal RNA is the most abundant RNA (i.e., 70-80 % of total) and are of 3-4 types. $23 S, 28 S$ are the longest of all RNAs. rRNA is a constituent of ribosomes. It lies coiled in between and over the protein molecules.

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343118 Total amount $A$ and $T$ in DNA is $45 %$ Amount of guanine will be ...

1

22.5 %

2

27.5 %

3

35 %

4

55 %

Explanation:

$A + T + G + C = 100 %$
Since $A + T = 45 %$
$45 % + G + C = 100 %$
$G + C = 100 % - 45 %$
$G + C = 55 %$
$G / C = 55 / 2$
$G = 27.5 %$
Hence answer is $27.5 %$

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343115 Assertion :
DNA and RNA is long polymers of Nucleotides.
Reason :
A nucleoside has three components - a nitrogenous base, a pentose sugar and a phosphate group.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Both Assertion and Reason are incorrect

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343116 Select the correct statement

1 Two strands of DNA are parallel and complimentary

2 Two strands of DNA are anti- parallel and non-complimentary

3 Two strands are anti- parallel and complimentary

4 All the above

Explanation:

Two strands of DNA are anti parallel each other. Both the strands run parallel but in opposite directions. One chain has polarity $5^{'} \to 3^{'}$ whereas other has $3^{'} \to 5$ '. Both strands are complimentary to each other, it means that both strands have complimentary base pairs.

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343117 The RNA which constitutes 70-80 % of the total RNA is

1 Messenger RNA

2 Transfer RNA

3 Template RNA

4 Ribosomal RNA

Explanation:

Ribosomal RNA is the most abundant RNA (i.e., 70-80 % of total) and are of 3-4 types. $23 S, 28 S$ are the longest of all RNAs. rRNA is a constituent of ribosomes. It lies coiled in between and over the protein molecules.

BIOXII06: MOLECULAR BASIS OF INHERITANCE

343118 Total amount $A$ and $T$ in DNA is $45 %$ Amount of guanine will be ...

1

22.5 %

2

27.5 %

3

35 %

4

55 %

Explanation:

$A + T + G + C = 100 %$
Since $A + T = 45 %$
$45 % + G + C = 100 %$
$G + C = 100 % - 45 %$
$G + C = 55 %$
$G / C = 55 / 2$
$G = 27.5 %$
Hence answer is $27.5 %$

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