A novel species with double-stranded genetic material consists of 5 bases namely P , Q , R , S , T , with percentage given below. P Q R S T Percentage 22 28 22 12 16 Based on the above information, which one of the following inferences is not supported by the observations?

S base pairs with T and Q base pairs with R

S base pairs with Q and T base pairs with Q

P base pairs with R and S base pairs with Q

P base pairs with R and T base pairs with Q

EASY

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Which of the following represents uridylic acid?

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Important Questions on Biomolecules

HARD

Biology>Cell : Structure and Functions>Biomolecules>Nucleic Acids

Radioisotopes are frequently used in the study of cellular processes. A culture of Escherichia coli is grown at

37 ° C

in a minimal medium containing radioactive phosphorous. At the end of

48

hours, the amount of radioactivity expected in equimolar quantities of the following macromolecules is

MEDIUM

Biology>Cell : Structure and Functions>Biomolecules>Nucleic Acids

Write the names of two nucleic acids.

MEDIUM

Biology>Cell : Structure and Functions>Biomolecules>Nucleic Acids

5- Methyl Uracil means:

EASY

Biology>Cell : Structure and Functions>Biomolecules>Nucleic Acids

If a double-stranded

DNA

has

15 %

cytosine, what is the

%

of adenine in the

DNA

?

EASY

Biology>Cell : Structure and Functions>Biomolecules>Nucleic Acids

In the polynucleotide chain of

DNA

, a nitrogenous base is linked to the

- OH

of:

EASY

Biology>Cell : Structure and Functions>Biomolecules>Nucleic Acids

If a dsDNA has 20% adenine, what would be its cytosine content?

MEDIUM

Biology>Cell : Structure and Functions>Biomolecules>Nucleic Acids

N-Glycosidic linkage contains:

HARD

Biology>Cell : Structure and Functions>Biomolecules>Nucleic Acids

DNA molecule has length of $476 \overset{\circ}{A}$ with $20 %$ guanosine. Choose the correct features of $DNA$

$I)$ $56 CTP$
$II)$ $336$ Hydrogen bonds
$III)$ Total $150$ nucleotides
$IV)$ $84 TTP$

MEDIUM

Biology>Cell : Structure and Functions>Biomolecules>Nucleic Acids

Choose the correct statements:
A) DNA directly codes for the synthesis of proteins
B) DNA and RNA both can function as genetic material
C) DNA is storage of genetic material and RNA transfers genetic information
D) RNA is indirectly codes for the synthesis of protein

EASY

Biology>Cell : Structure and Functions>Biomolecules>Nucleic Acids

Identify the chemical components of nucleic acid

A) Cysteine
B) Heterocyclic compound
C) Tyrosine
D) Phosphoric acid
E) Ribulose
F) Monosaccharide

MEDIUM

Biology>Cell : Structure and Functions>Biomolecules>Nucleic Acids

Watson and Crick model of DNA is

EASY

Biology>Cell : Structure and Functions>Biomolecules>Nucleic Acids

Optical activity of DNA is due to its:

EASY

Biology>Cell : Structure and Functions>Biomolecules>Nucleic Acids