An unaffected couple have 7 children - 4 sons and 3 daughters. 3 of the sons are affected from a disease X. X is a _____ disorder.

Q. A normal couple has seven children($2$ daughters and $5$ sons). Three of the sons suffer from a hereditary disorder but none of the daughters is affected. Which is the inheritance type?

Q. A diseased man marries a normal woman. The couple has 3 daughters and 5 sons. The daughters are diseased while the sons are normal. The gene of the disease is

Q. Recessive mutations in some rare genetic disorders can manifest as disease. A couple had four sons and four daughters, of which two sons developed such a genetic disorder. The parents did not manifest disease symptoms. Further studies shows that this disease affects only males. If genes $P$ (dominant allele) and $p$ (recessive allele) are involved in this disorder, identify the correct statement from the options given below.

Q. A man and a woman, who do not show any apparent signs of a certain inherited disease, have seven children (two daughters and five sons). Three of the sons suffer from the given disease but none of the daughters are affected. Which of the following modes of inheritance is shown by this disease?

Q. An unaffected couple have 50% haemophilic sons and 50% carrier daughters. The gene for haemophilia is located on