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What are holandric genes?

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प्रश्न

What are holandric genes?

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उत्तर

The genes present in the differential region of the Y chromosome are called Y- linked or holandric genes. The Y linked genes have no corresponding allele in X chromosome.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Principles of Inheritance and Variation - Evaluation [पृष्ठ ५६]

APPEARS IN

सामाचीर कलवी Biology (Zoology) [English] Class 12 TN Board
पाठ 4 Principles of Inheritance and Variation
Evaluation | Q 27. | पृष्ठ ५६
सामाचीर कलवी Biology (Zoology) [English] Class 12 TN Board
पाठ 4 Principles of Inheritance and Variation
Evaluation | Q 30. | पृष्ठ ५९

संबंधित प्रश्‍न

 Correct and rewrite the statements by changing the biological term that is underlined for the statement: 
The theory of Inheritance of Acquired Characters was proposed by Watson and Crick. 


Answer the following briefly:

Explain with the help of a chart what will be the colour of a child's hair if father has got dominant gene for black hair and mother has recessive gene for brown hair?


A family consists of two parents and their five children and the pedigree chart shown below shows the inheritance of the trait colour blindness in them.

What does the child 1 indicate about this trait?


Name anyone X-linked disease found in humans.


A woman had normal vision, but her father was colourblind. She marries a man, who is colourblind.
Find out the probability of the first child being colourblind, whether it is a boy or girl.


Short Answer Question.

Observe the given pedigree chart and answer the following question.

Identify whether the trait is sex-linked or autosomal.


Study the following statements and select the correct option.

Statement I: Holandric genes are present on Y chromosome. Statement II: Holandric genes are always inherited from father to son.


Identify the INCORRECT statement with regard to haemophilia.


What would be the progeny obtained if a haemophilic male marries a female with normal blood clotting?


Four friends P, Q, R and S were discussing the examples of genetic disorders. The examples they quoted were as follows:

P. Colour blindness and Malaria

Q. Albinism and Cholera

R. Haemophilia and Colour blindness

S. Haemophilia and Albinism

Who gave the correct examples?


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