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Previous year question hub

Biomolecules and Molecular Information Flow - Biochemistry and Molecular Biology - Life Sciences Previous Year Questions

Practice Biomolecules and Molecular Information Flow - Biochemistry and Molecular Biology - Life Sciences previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

20Papers
20Years
173Questions
1Topics

Biomolecules and Molecular Information Flow question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Biomolecules and Molecular Information Flow. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Easy 100 57.8%
Medium 71 41%
Hard 2 1.2%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

MCQ 129 74.6%
Numerical Answer Type (NAT) 30 17.3%
MSQ 14 8.1%

Subject weightage

Top subjects by unique question coverage.

Life Sciences
173 Qs

Most asked topics

Top topics across the included previous year papers.

Biochemistry and Molecular Biology
173 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Biomolecules and Molecular Information Flow
173 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Life Sciences (XL) 2026
13 Qs
Life Sciences (XL) 2025
10 Qs
Life Sciences (XL) 2024
7 Qs
Life Sciences (XL) 2023
7 Qs
Life Sciences (XL) 2022
7 Qs
Life Sciences (XL) 2021
14 Qs
Life Sciences (XL) 2020
9 Qs
Life Sciences (XL) 2019
8 Qs
Life Sciences (XL) 2018
9 Qs
Life Sciences (XL) 2017
13 Qs
Life Sciences (XL) 2016
6 Qs
Life Sciences (XL) 2015
2 Qs
Life Sciences (XL) 2014
7 Qs
Life Sciences (XL) 2013
6 Qs
Life Sciences (XL) 2012
7 Qs
Life Sciences (XL) 2011
10 Qs
Life Sciences (XL) 2010
9 Qs
Life Sciences (XL) 2009
11 Qs
Life Sciences (XL) 2008
10 Qs
Life Sciences (XL) 2007
8 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
Life Sciences (XL) 2026202613View paper
Life Sciences (XL) 2025202510View paper
Life Sciences (XL) 202420247View paper
Life Sciences (XL) 202320237View paper
Life Sciences (XL) 202220227View paper
Life Sciences (XL) 2021202114View paper
Life Sciences (XL) 202020209View paper
Life Sciences (XL) 201920198View paper
Life Sciences (XL) 201820189View paper
Life Sciences (XL) 2017201713View paper
Life Sciences (XL) 201620166View paper
Life Sciences (XL) 201520152View paper
Life Sciences (XL) 201420147View paper
Life Sciences (XL) 201320136View paper
Life Sciences (XL) 201220127View paper
Life Sciences (XL) 2011201110View paper
Life Sciences (XL) 201020109View paper
Life Sciences (XL) 2009200911View paper
Life Sciences (XL) 2008200810View paper
Life Sciences (XL) 200720078View paper

All Biomolecules and Molecular Information Flow previous year questions

Practice every matching question in batches of 20, with every available option.

1
2007 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2007
Deamination of cytosine produces
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2
2007 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2007

How does haemoglobin carry carbon dioxide generated in tissues back to the lungs?

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3
2007 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2007
Presence of CX2-CX6X3HX2H sequence in a protein suggest that it is
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4
2007 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2007
Match items in group 1 with correct examples from those in group 2
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5
2007 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2007
Match the recombinant products in group 1 with their therapeutic applications in group 2
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6
2007 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2007
Downstream processing of an industrial process yielded a highly purified bioactive protein. This protein was subjected to cleavage by trypsin. Chromatographic separation of products resulted in 4 peptides (P, Q, R, S) with the following amino acid sequences
(P) phe-val-met-val-arg
(Q) ala-ala-try-gly-lys
(R) val-phe-met-ala-gly-lys
(S) phe-gly-try-ser-thr

Chemical cleavage of the same protein with cyanogen bromide and chromatographic separation resulted in three peptides (i, ii, iii) with the following sequences
(i) ala-gly-lys-phe-gly-try-ser-thr
(ii) ala-ala-pry-gly-lys-phe-val-met
(iii) val-arg-val-phe-met

The order of the peptides that gives the primary structure of the original protein is
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7
2007 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2007

The correct equation for the reduction of nicotinamide adenine dinucleotide phosphate is

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8
2007 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2007
Reverse transcriptase used in genetic engineering was discovered by
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9
2008 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2008
Identify W and X
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10
2008 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2008

Identify Y and Z

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11
2008 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2008
Match the polysaccharides in Column I with their constituent monosaccharide in Column II.
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12
2008 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2008
The T_m of phosphatidyl choline A is higher than T_m of phosphatidyl choline B because
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13
2008 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2008
The atoms of pyrimidine ring are derived from
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14
2008 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2008
Which of the following statements are true for steroid hormones?
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15
2008 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2008

A nucleic acid sample is resistant to digestion with λ exonuclease. When heated it does not show typical melting curve of a linear double stranded DNA. On CsCl-ethidium bromide equilibrium density centrifugation it settles at the bottom of the centrifuge tube. The nucleic acid is

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16
2008 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2008
In bioinformatics, the term ‘BLAST’ refers to
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17
2008 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2008

A polymerase chain reaction was performed beginning with 400 template DNA molecules in a 100 μl reaction. After 20 cycles of polymerase chain reaction, how many molecules of the amplified product will be present in 0.1 μl of reaction?

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18
2008 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2008
Identify the correct combination from the above options
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19
2009 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2009

Human DNA (3 × 106 Kb) is replicated in 5 hrs at a rate of 1 Kb/min. The number of origins of replication utilized are

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20
2009 · Life Sciences · Biochemistry and Molecular Biology · Biomolecules and Molecular Information Flow
Life Sciences (XL) 2009

Phospholipases A1 and A2,

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Showing 20 of 173 questions