Sickle cell-anaemia disorder arises due to
Duplication of a segment of $DNA$
Substitution in a single base of $DNA$
Deletion of a segment of $DNA$
Duplication in a base pair of $RNA$
Study the given pedigree chart and select the correct option of the given question.
$(1)$ Is the trait recessive of dominant ?
$(2)$ is the trait sex linked or autosomal ?
If a character is always transmitted directly from a father to all his sons and from their sons to all their sons, then which chromosome carries the gene for the character
Thalassemia and sickle cell anaemia are caused due to a problem in globin molecule synthesis. Select the correct statement.
Pedigree analysis is very important in human beings because
Haemophilia is
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