"Paternal chromosome contain one allele and maternal chromosome contain other allele both these alleles constitute one gene, one gene controls one character" Is this statement true.

Q.

One can find two sets of alleles for genes found on Y chromosome as well.

Q. Haemophilia and colourblindness are the disorders caused by X chromosome linked recessive gene. A woman has one X chromosome having gene for haemophilia and colourblindness. The other X chromosome has wild allele for both the characters. She marries a man having phenotype normal for both the traits. Which of the following statement is most likely for the progeny?

Q. Assertion :A gene affecting the character of another gene not located on similar locus of the homologus chromosome is called epistatic gene. Reason: Epistatic gene hides the expression of an allele at a different locus.

Q. Match the following

	I		II
A	Dominance	i	In a heterozygous organism both alleles express themselves fully
B	Epistasis	ii	A single gene influences many characters
C	Pleiotropy	iii	One gene is suppressed by other gene.
D	Codominance	iv	One allele masks the other allele of the same gene