If a son is affected by hemophilia,from whom | vedclass

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(D) Hemophilia is an $X$-linked recessive disorder. Since a son receives his $Y$ chromosome from his father and his $X$ chromosome from his mother,the

Vedclass · Accepted Answer

Carrier mother

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(D) Hemophilia is an $X$-linked recessive disorder. Since a son receives his $Y$ chromosome from his father and his $X$ chromosome from his mother,the gene for hemophilia must be present on the $X$ chromosome inherited from the mother. If the mother is a carrier $(X^HX^h)$,she can pass the $X^h$ chromosome to her son,resulting in a hemophilic son $(X^hY)$. Therefore,the probability of the son inheriting the disease comes from a carrier mother.

Column $I$	Column $II$
$(a)$ Sickle cell anaemia	$(x)$ Homogentisic acid
$(b)$ Alkaptonuria	$(y)$ Melanin pigments are absent
$(c)$ Albinism	$(z)$ More amount of phenylalanine
$(d)$ Phenylketonuria	$(w)$ Defective haemoglobin

If a son is affected by hemophilia,from whom is the probability of inheriting this disease?

Similar Questions

Which of the following most appropriately describes haemophilia?

Match the columns:

Column $I$ Column $II$

$(a)$ Sickle cell anaemia $(x)$ Homogentisic acid

$(b)$ Alkaptonuria $(y)$ Melanin pigments are absent

$(c)$ Albinism $(z)$ More amount of phenylalanine

$(d)$ Phenylketonuria $(w)$ Defective haemoglobin

Identify the odd one among the following disorders.

Choose the correct option for the symptoms of $Phenylketonuria$ $(PKU)$.

In the given pedigree chart,which Mendelian disorder is represented?

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