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Previous year question hub

Genetics - Life Sciences Previous Year Questions

Practice Genetics - Life Sciences previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

20Papers
20Years
84Questions
1Topics

Genetics question pattern

Every graph below is calculated only from this selection.

Questions by year

Compare question counts across years.

Difficulty distribution

How the classified questions are distributed by difficulty.

Easy 42 50%
Medium 40 47.6%
Hard 2 2.4%

Question type distribution

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

MCQ 50 59.5%
Numerical Answer Type (NAT) 33 39.3%
MSQ 1 1.2%

Subject weightage

Top subjects by unique question coverage.

Life Sciences
84 Qs

Most asked topics

Top topics across the included previous year papers.

Genetics
84 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Inheritance and Genetic Mapping
76 Qs
Population Genetics and Genetic Disorders
8 Qs

Paper coverage

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

Life Sciences (XL) 2026
4 Qs
Life Sciences (XL) 2025
7 Qs
Life Sciences (XL) 2024
1 Qs
Life Sciences (XL) 2023
7 Qs
Life Sciences (XL) 2022
1 Qs
Life Sciences (XL) 2021
6 Qs
Life Sciences (XL) 2020
1 Qs
Life Sciences (XL) 2019
4 Qs
Life Sciences (XL) 2018
4 Qs
Life Sciences (XL) 2017
7 Qs
Life Sciences (XL) 2016
5 Qs
Life Sciences (XL) 2015
3 Qs
Life Sciences (XL) 2014
5 Qs
Life Sciences (XL) 2013
7 Qs
Life Sciences (XL) 2012
3 Qs
Life Sciences (XL) 2011
3 Qs
Life Sciences (XL) 2010
7 Qs
Life Sciences (XL) 2009
2 Qs
Life Sciences (XL) 2008
1 Qs
Life Sciences (XL) 2007
6 Qs

Browse by subtopics

Open a focused page built from the same verified paper data.

Inheritance and Genetic Mapping

Explore previous-paper coverage, trends and focused practice for Inheritance and Genetic Mapping.

76 questions20 papers20 years

Population Genetics and Genetic Disorders

Explore previous-paper coverage, trends and focused practice for Population Genetics and Genetic Disorders.

8 questions7 papers7 years

Included previous year papers

Newest papers appear first. Search these papers or sort by year and name.

Paper nameYearPDFAttempt
Life Sciences (XL) 20262026
4 questions in this view		2026
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Life Sciences (XL) 20252025
7 questions in this view		2025
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Life Sciences (XL) 20242024
1 questions in this view		2024
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Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Life Sciences (XL) 20232023
7 questions in this view		2023
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Life Sciences (XL) 20222022
1 questions in this view		2022
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Life Sciences (XL) 20212021
6 questions in this view		2021
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Life Sciences (XL) 20202020
1 questions in this view		2020
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20192019
4 questions in this view		2019
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20182018
4 questions in this view		2018
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20172017
7 questions in this view		2017
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20162016
5 questions in this view		2016
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20152015
3 questions in this view		2015
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20142014
5 questions in this view		2014
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Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20132013
7 questions in this view		2013
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20122012
3 questions in this view		2012
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20112011
3 questions in this view		2011
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20102010
7 questions in this view		2010
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20092009
2 questions in this view		2009
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20082008
1 questions in this view		2008
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Life Sciences (XL) 20072007
6 questions in this view		2007
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Official documents
Official question paperOriginal authority-issued PDF Official Download

Sample previous year questions

A varied preview from the papers represented in this selection, with every available option.

1
2007 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2007
How many different kinds of F1 gametes would be expected from the above cross?
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2
2008 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2008
Red flower (R) dominant to white flower (r) and short pollen grain (l) recessive to long pollen grain (L) are two genes on chromosome no. 2 of sweet pea. Plants with red flower and long pollen grains were crossed with plants with white flower and short pollen grains. The hybrids were test crossed and the following progenies were obtained in the F2 a. Red flower with long pollen grain ss: Red flower with short pollen grain 35 : White flower with long pollen grain 350 : White flower with short pollen grain What would be the map distance between R and L ?
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3
2009 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2009
Mendel’s principle of segregation means that the germ cells (egg or sperm) always receive
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4
2010 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2010
Given digits 2, 2, 3, 3, 3, 4, 4, 4, 4 how many distinct 4 digit numbers greater than 3000 can be formed?
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5
2011 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2011

The diploid chromosome number of an organism is 2n = 14. What would be the expected chromosome numbers in a nullisomic?

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6
2012 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2012
The relationship between genes and enzymes was first suggested by the discovery of
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