Inheritance of One gene

IMPORTANT

Inheritance of One gene: Overview

This topic consists of various concepts like First Filial Generation,Law of Segregation,Incomplete Dominance, etc.

Important Questions on Inheritance of One gene

EASY
IMPORTANT

Look at the given diagram and answer the following question :

 

Identify the phenotypic ratio of A, B, C, D.

 

Question Image

EASY
IMPORTANT

Look at the diagram given below and answer the following question :

Identify the genotypes of A, B, C, D.

Question Image

MEDIUM
IMPORTANT

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:

MEDIUM
IMPORTANT

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:

MEDIUM
IMPORTANT

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:

Question Image

 

EASY
IMPORTANT

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:

Question Image

 

EASY
IMPORTANT

With respect to the ABO group, there are four major blood types because this blood group is determined by

EASY
IMPORTANT

If a homozygous tall plant is crossed with homozygous dwarf plant, the offspring will be

EASY
IMPORTANT

If a homozygous red flowered plant is crossed with a homozygous white flowered plant, the off springs would be

EASY
IMPORTANT

If a pure tall plant is crossed with a dwarf plant, the offspring will be

EASY
IMPORTANT

A typical phenotypic monohybrid ratio of Fin Mendel's experiment is

EASY
IMPORTANT

What is the probability of getting the gamete ab from the genotype Aabb?

EASY
IMPORTANT

How many kinds of gametes are possible with the genotype AaBB?

EASY
IMPORTANT

Blood groups in man is an example of

MEDIUM
IMPORTANT

A typical 1 : 2 : 1 phenotypic ratio in a monohybrid cross is characteristic of

MEDIUM
IMPORTANT

When Aa hybrid is crossed back with the homozygous dominant parent, the phenotypic ratio of the progeny will be

EASY
IMPORTANT

When a hybrid of Fis crossed with the homozygous recessive parent, it is called

MEDIUM
IMPORTANT

In a pea plant, the gene 'T' for tallness is dominant over the gene 't' for dwarfness. If two heterozygous individuals are crossed

MEDIUM
IMPORTANT

Which of the following statements about the 'Law of dominance' is false?