Basic Principles of Inheritance
Chapter 6
Exercises
1. Differentiate between the following
(a) Genotype and Phenotype
(b) Dominant and Recessive characters
(c) Hybrid and Pure individuals
(d) Heterozygous and Homozygous progeny
(e) Monohybrid and Dihybrid cross
(f) Gene and allele
(g) Incomplete dominance and codominance
2. Mention the genotypic and phenotypic ratio of progeny when there is a cross between
3. Explain test cross through diagrammatic representation.
4. Explain following using monohybrid cross
(a) Law of dominance
(b) Law of segregation
(c) Law of independent assortment
5. What will be the genotypic and phenotypic ratio when a red and tall homozygous tomato plant is crossed to a red and tall heterozygous plant?
6. When one male and one female Drosophila, heterozygous for the two pairs of alleles AaBb, were mated, the offspring’s phenotypic ratio 2:1:1:2 was obtained.
(a) Explain how these ratios help in detecting linkages?
(b) How degree of linkage can be determined?
7. Make a close observation with the nature. Do you think that the phenomenon of linkage is absolute?
Questions Type By : Himashree Bora.
