Inheritance of One Gene
Inheritance of One Gene: Overview
This topic covers concepts such as Phenotype, Genotype, Second Filial Generation, Monohybrid Cross, Law of Dominance, Incomplete Dominance, Codominance, Law of Segregation, Punnett Square, Test Cross and Multiple Alleles.
Important Questions on Inheritance of One Gene
Look at the given diagram and answer the following question :
Identify the phenotypic ratio of A, B, C, D.
Look at the diagram given below and answer the following question :
Identify the genotypes of A, B, C, D.
You are given tall pea plants with yellow seeds whose genotypes are unknown. It was crossed with a dwarf pea plant with green seeds. The progeny obtained has equal ratio of tall and dwarf plants and equal proportion of green and yellow seeds. The genotype of the first plant is:
When a violet flower producing plant was crossed with white flower producing plant, the progeny obtained had all violet flower.
The genotype of first parent was homozygous or heterozygous:
A plant of Antirrhinum majus with red flowers was crossed with another plant of the same species with white flowers. The plants of the F1 generation bore pink flowers. The pattern of inheritance is exhibiting:
A plant of Antirrhinum majus with red flowers was crossed with another plant of the same species with white flowers. The plants of the F1 generation bore pink flowers. The pattern of inheritance is exhibiting:
If a homozygous red flowered plant is crossed with a homozygous white flowered plant, the off springs would be
Mirabilis jalapa shows
What are multiple alleles? Describe multiple alleles with the help of ABO blood groups in man.
Differentiate between the following:
Homozygous and heterozygous.
Choose the correct option regarding the inheritance of flower colour in Antirrhinum (dog flower).
Assertion: ABO blood group system is a good example of pleiotropic genes.
Reason: In ABO blood group system, when IA and IB alleles are present together, both express themselves.
The phenotypic ratio of F2 generation in a monohybrid cross is 9:3:3:1.
On selfing a plant of F1 generation with genotype 'AABbCC' the phenotypic ratio in F2 generation will be:
With the help of Mendel's cross between tall and dwarf garden peas mention the phenotypic and genotypic ratio of the F2 generation.
The generation produced by crossing two parental organisms is called the second filial generation.
What will be the genotype of the parents, when their children are with A, B, AB and O blood group?
The phenotypic ratio of incomplete dominance is _____.
If the gene pool of the locus X in the human genome is 4, then what would be the highest possible number of genotypes in a large population?
The genotype of a person with B blood group is _____. The phenotypic blood group of a person with genotype ii will be _____.
