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Question
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.
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Solution
Haemophilia, colour blindness are examples of sex-linked traits in humans.
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RELATED QUESTIONS
find odd one from following: Typhoid, Haemophilia, Albinism, Colour blindness.
Match the terms in column I with their explanations in column II.
| Column I (Term) | Column I (Explanation) | ||
| a | genetics | 1 | Chromosomes similar in size and shape |
| b | Autosomes | 2 | The alternative forms of a gene |
| c | Recessive gene | 3 | Study of laws of inheritance of characters |
| d | Allele | 4 | A gene that can express only when in a similar pair |
| e | Homologous chromosomes | 5 | Chromosomes other than the pair of sex chromosomes |
Why do men suffer from hemophilia and colour blindness? Under what conditions do women suffer from these disorders?
Give Reason:
Hemophilia shows criss-cross inheritance.
Short Answer Question.
Observe the given pedigree chart and answer the following question.
Identify whether the trait is sex-linked or autosomal.
Explain the inheritance of sex-linked characters in human being.
If a woman has an allele for an X-Linked condition i.e. haemophilia, on one of her X chromosomes then this chromosome can be inherited by ______
In which of the following case colour blind daughter will be born?
A man is haemophilic. It indicates that he ______.
