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Previous year question hub

Inheritance and Genetic Mapping - Genetics - Life Sciences Previous Year Questions

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

20Papers
20Years
76Questions
1Topics

Inheritance and Genetic Mapping question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Inheritance and Genetic Mapping. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Medium 39 51.3%
Easy 35 46.1%
Hard 2 2.6%

Question type distribution

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

MCQ 47 61.8%
Numerical Answer Type (NAT) 28 36.8%
MSQ 1 1.3%

Subject weightage

Top subjects by unique question coverage.

Life Sciences
76 Qs

Most asked topics

Top topics across the included previous year papers.

Genetics
76 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Inheritance and Genetic Mapping
76 Qs

Paper coverage

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

Life Sciences (XL) 2026
3 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
4 Qs
Life Sciences (XL) 2020
1 Qs
Life Sciences (XL) 2019
3 Qs
Life Sciences (XL) 2018
3 Qs
Life Sciences (XL) 2017
6 Qs
Life Sciences (XL) 2016
4 Qs
Life Sciences (XL) 2015
3 Qs
Life Sciences (XL) 2014
5 Qs
Life Sciences (XL) 2013
7 Qs
Life Sciences (XL) 2012
2 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

Included previous year papers

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

PaperYear / sessionQuestions in this viewOpen
Life Sciences (XL) 202620263View paper
Life Sciences (XL) 202520257View paper
Life Sciences (XL) 202420241View paper
Life Sciences (XL) 202320237View paper
Life Sciences (XL) 202220221View paper
Life Sciences (XL) 202120214View paper
Life Sciences (XL) 202020201View paper
Life Sciences (XL) 201920193View paper
Life Sciences (XL) 201820183View paper
Life Sciences (XL) 201720176View paper
Life Sciences (XL) 201620164View paper
Life Sciences (XL) 201520153View paper
Life Sciences (XL) 201420145View paper
Life Sciences (XL) 201320137View paper
Life Sciences (XL) 201220122View paper
Life Sciences (XL) 201120113View paper
Life Sciences (XL) 201020107View paper
Life Sciences (XL) 200920092View paper
Life Sciences (XL) 200820081View paper
Life Sciences (XL) 200720076View paper

All Inheritance and Genetic Mapping previous year questions

Practice every matching question in batches of 20, 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
2007 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2007

How many different kinds of F2 genotypes would be expected from the above cross?

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3
2007 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2007
Sickle-cell anemia is caused by mutation in
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4
2007 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2007
Albinism is controlled by a recessive gene (c). From a marriage between a normal pigmented person carrying genotype Cc and albino cc, what is the chance that an albino child will be born ?
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5
2007 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2007
If the woman marries a man with normal eyes, what proportion of her children will have abnormal eyes ?
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6
2007 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2007
Which of the following representation does not explain the genotype of the woman’s father ?
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7
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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8
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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9
2009 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2009
Sex-linkage refers to
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10
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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11
2010 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2010
Arabidopsis and rice have diploid chromosome numbers of 10 and 24, respectively. Assuming no crossing over taking place, genetic variation among F₂ individuals in a genetic cross is likely to be
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12
2010 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2010
The possible genotypes of endosperms borne on a heterozygous (Rr) plant will be
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13
2010 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2010
The recombination frequencies between three genes x, y and z are as follows:
x-y: 2.6%, y-z: 1.4% and x-z: 1.2%. Then the gene order is
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14
2010 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2010

A mutant phenotype due to a nonsense mutation can be rescued by a mutation in tRNA gene. This rescue is an example of

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15
2010 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2010
Which one of the following results from Mendel’s monohybrid cross is the strongest evidence against the blending theory?
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16
2010 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2010
In a cross between plants with purple- and white-colored flowers, the following results were obtained in the F1 generation (assume that both varieties are true breeding):
100 plants with white flowers; 150 straw yellow; 200 yellow; 245 greenish yellow; 500 green; 440 light blue; 400 blue; 300 indigo; 253 purple; and 100 dark purple. These data support which one of the following conclusions?
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17
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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18
2011 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2011

The cis-trans test can determine whether a gene codes for

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19
2011 · Life Sciences · Genetics · Inheritance and Genetic Mapping
Life Sciences (XL) 2011
A genetic experiment was performed to map the gene(s) for eye colour in a newly-discovered moth species. Sex determination in this moth species: XY – male and XX – female. When blue-eyed males were mated to green-eyed females, all of both male and female progeny had green eyes. When these progeny were mated among themselves, about half of the males of the resulting second generation had blue eyes; however, all females were green-eyed. Which one of the following is consistent with the above data?
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20
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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Showing 20 of 76 questions