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Which one of the following genotypes can form only 2 different types of gametes?

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Important Questions on Principles of Inheritance and Variation

EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism

Match the following 

   List - I     List - II
(a) Holandric genes (i) Pleiotropy
(b) Multiple effects of a single gene (ii) Hypertrichosis
(c) Skin colour in man (iii) Multiple Alleles
(d) ABO Blood types (iv) Polygenic inheritance

The correct answer is

MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
A pleiotropic gene
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism

The best example for pleiotropy is:

EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
What will be number of gene pairs controlling a single character in polygenic inheritance if the phenotypic ratio obtained in F2 generation is 1 : 6 : 15 : 20 : 15 : 6 : 1?
MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
Define polygenic inheritance.
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
One of the following is quantitative abnormality of polypeptide globin chain synthesis
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
Mutation in a single gene can lead to changes in multiple traits. This is an example of
HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
What are the differences between incomplete dominance and co-dominance? Explain with examples.
HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism

Example of polygenic inheritance is 

HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
Explain Polygenic inheritance with example.
HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
What is the maternal effect? Explain with a suitable example.
HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
In a mating between two mulattos, each heterozygous at all three gene loci for the skin colour, what is the chance their child will have very light skin?
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
What is co-dominance?
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
If one gene influences many phenotypic traits, the phenomenon is called
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
What are complementary genes? Explain with the help of an example.
MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
Phenotypic and genotypic ratios are similar in
MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
The inheritance of flower colour (pink) in Mirabilis jalapa is the example of 
MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
The phenotype of one parent for skin colour is AABBCC and other parent is aabbcc. What will be the skin colour and genotype for their progeny?
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism
Choose the possible genotypes responsible for lightest skin colour in human beings.
HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Deviations from Mendelism

Human height is a multigenic character. If the heights of all the individuals living in a metropolis are measured and the percentages of the population belonging to a specific heat are plotted as shown below, which of the plots would represent the most realistic distribution?
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