How many genes a child receives from its father?
25%
50%
75%
100%
If a tall plant is crossed with a dwarf plant, this type of cross is called:
Dihybrid
Monohybrid
Reciprocal
Trihybrid
In Down's syndrome of a male child, the sex complement is
XO
XY
XX
XXY
A family of five daughters only is expecting sixth issue. The chance of its being a son is
Zero
Blue eye colour is recessive to brown eye colour. A brown eyed man whose mother was blue eyed marries a blue eyed women. The children shall be
Both blue eyed and brown eyed 1 : 1
All brown eyed
All blue eyed
Blue eyed and brown eyed 3 : 1
Triticale has been evolved by intergeneric hybridization between
Wheat and rye
Wheat and rice
Rice and maize
Wheat and aegilops
Which one is a hereditary disease?
Cataract
Leprosy
Blindness
Phenylketonuria
Haploid are able to express both recessive and dominant alleles/mutations because there are
Many alleles for each gene
Two alleles for each gene
Only one allele for each gene in the individual
Only one allele in a gene
A true breeding tall and smooth -seeded pea plant is crossed with a true breeding dwarf and wrinkled-seeded plant. The fact that F1 plants were all tall demonstrates:
Principle of assortment of characters
That recombination of characters appears in F2 generation
That P1 tall plants were heterozygous
That tallness was dominant to dwarfness
