Question
(a) If a Tt plant is crossed with tt pea plant, how many phenotypes will be observed in F₁ generation? (b) Mention one use of genetics in the welfare of plants and one for animals.
Answer
(a) In the F₁ generation of a cross between Tt and tt plants, only one phenotype (Tt) will be observed because the dominant allele masks the recessive allele in heterozygous individuals.
(b) One use of genetics in the welfare of plants is the development of genetically modified crops that can resist pests, tolerate harsh environmental conditions, and produce higher yields. An example of genetics in the welfare of animals is the breeding of disease-resistant livestock through selective breeding and genetic engineering techniques.
