In a practical examination, the pedigree chart shown below was provided for identification. Identify the type of inheritance.

Study the given pedigree chart and select the correct option for the given questions.
$(1)$ Is the trait recessive or dominant?
$(2)$ Is the trait sex-linked or autosomal?

Why are thalassemia and haemophilia categorised as Mendelian disorders? Write the symptoms of these diseases. Explain their pattern of inheritance in humans.

If a colour blind man marries a woman who is homozygous for normal vision,the probability of their son being colour blind is ......... (in $\%$)

Pick out the correct statements.
$(1)$ Haemophilia is a sex-linked recessive disease.
$(2)$ Down's syndrome is due to aneuploidy.
$(3)$ Phenylketonuria is an autosomal recessive gene disorder.
$(4)$ Sickle cell anaemia is an $X$-linked recessive gene disorder.

What will be the genotypes of the parents of a colorblind daughter and a colorblind son?