Mendelian disorders may be of which type?

What are both Sickle-cell anemia and Huntington's chorea?

The amino acid substituted in sickle cell anaemia is

Which of the following disorders is most likely to be recessive?

Albinism is caused by an autosomal recessive disorder. $A$ couple has their first child who is an albino (having abnormal skin pigmentation). What is the probability that their second child will also be an albino (in $\%$)?

$A$ colour blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour blind?