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प्रश्न
Why are sex linked recessive characters more common in the male human beings?
उत्तर
Sex linked inherited traits are more common in males than females because, males are hemizygous and therefore express the trait when they inherit one mutant allele.
संबंधित प्रश्न
Briefly explain the term ‘Mutation’.
Differentiate between:
character and trait.
Two pairs (A & B) of rabbits were crossed, as given below:
- Can you tell which coat colour (black or white) is dominant?
- Is the coat colour sex-linked?
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 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?
Give Reason:
Hemophilia shows criss-cross inheritance.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Cancer is a genetic disorder.
Choose the Odd One Out
What is cris-cross inheritance?
Father of a child is colourblind and mother is carrier for colourblindness, the probability of the child being colourblind is ____________.
Inheritance of hypertrichosis occurs directly from ____________.
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.
The genes present on non-homologous part of Y-chromosome are called ____________.
Which of the following is CORRECT with respect to sex-linked genes?
Identify the progeny produced if a colour blind male marries a normal vision female.
Which of the following is NOT an autosomal-linked recessive disease?
Given diagram is a simplified representation of human sex chromosome. The gene A and B could be of ______.
If the mother is normal and the father is haemophilic, then their two daughters will be ______.
