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प्रश्न
What are holandric genes?
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
find odd one from following: Typhoid, Haemophilia, Albinism, Colour blindness.
the Biological/technical term for An alteration in the genetic material that can be inherited.
Briefly explain the term ‘Mutation’.
Expand the following biological abbreviations : DNA
Differentiate between:
character and trait.
Identify the ODD term in each set and name the CATEGORY to which the remaining three belong :
Example : glucose, starch, cellulose, calcium
Odd term : calcium
Category : others are different types of carbohydrates
Chicken pox, Colour blindness, Haemophilia, Albinism
Differentiate Between Y-linked inheritance and X-linked inheritance.
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.
What are X-linked genes?
Very Short Answer Question.
What are holandric traits?
Long answer type question.
In the answer for inheritance of X-linked genes, Madhav had shown carrier male. His answer was marked incorrect. Madhav was wondering why his marks were cut. Explain the reason.
Explain the inheritance of sex-linked characters in human being.
Teena's father bas haemophilia which is an X-linked recessive trait, but her husband has normal blood clotting. What is the chance her son will have the disease?
Holandric genes are found only in ____________.
Identify the progeny produced if a colour blind male marries a normal vision female.
If a colour blind man marries a normal visioned woman, what is the percentage of offsprings showing colour blindness phenotypically?
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.
Types of sex- linked genes:
(Haemophilia, Ichthyosis, nephritis, Myopia, Hypertrichosis, Retinitis pigmentosa)
| Column 'A' | Column 'B' | |
| (1) | Completely X- linked genes | ______ |
| (2) | Completely Y- linked | ______ |
| (3) | Incompletely sex-linked genes | ______ |
