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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.
संबंधित प्रश्न
Differentiate between:
monohybrid and dihybrid cross (phenotypic ratio)
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.
A woman has normal vision but her father was colour blind. If she is married to a colour blind person, report on the occurrence of the disease in the progeny.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Linkage is a permanent feature of few genes.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Colour blindness is a Y-linked character.
Short Answer Question.
Observe the given pedigree chart and answer the following question.
Give an example of a trait in human beings which shows such a pattern of inheritance.
The genes present on non-homologous part of Y-chromosome are called ____________.
Rakesh is colour blind, married to Sangeeta who is having normal v1s10n (Homozygous). They have a son and a daughter. Determine the type of vision in their children with the help of a suitable chart.
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?
