What is haplodiploidy?

Distinguish between heterogametic and homogametic sex determination systems

What is Lyonisation?

What is criss-cross inheritance?

Why are sex linked recessive characters more common in the male human beings?

What are holandric genes?

Mention the symptoms of Phenylketonuria

What is a syndrome?

Define multiple allelism.

State the allelic forms of I gene and mention its chromosomal location.

Mention few X-linked inherited diseases

Name any four Mendelian disorders

What is the phenotype of (a) I^Al^O (b) 1^O1^O

Write a note on Huntington's chorea.

List out any four clinical symptoms of Klinefelter's syndrome.