MEDIUM
12th Andhra Pradesh Board
IMPORTANT
Earn 100

Define Law of Independent Assortment.

Important Questions on Principles of Inheritance and Variation

MEDIUM
12th Andhra Pradesh Board
IMPORTANT
Intermediate Second Year Botany>Chapter 9 - Principles of Inheritance and Variation>Questions>Q 13

In peas, the tallness is dominant over dwarf-ness and the violet colour of flowers is dominant over the white colour. When a tall plant bearing violet flowers was pollinated with a dwarf plant bearing white flowers, different phenotypic groups were obtained in the progeny in numbers mentioned against them:

Tall, Violet = 138

Tall, White = 132

Dwarf, Violet = 136

Dwarf, White = 128

Mention the genotypes of the two parents and of the four offspring types.

MEDIUM
12th Andhra Pradesh Board
IMPORTANT
Intermediate Second Year Botany>Chapter 9 - Principles of Inheritance and Variation>Questions>Q 14
How do genes and chromosomes share similarity from the viewpoint of genetical studies?
MEDIUM
12th Andhra Pradesh Board
IMPORTANT
Intermediate Second Year Botany>Chapter 9 - Principles of Inheritance and Variation>Questions>Q 15
With the help of an example differentiate between incomplete dominance and co-dominance.
HARD
12th Andhra Pradesh Board
IMPORTANT
Intermediate Second Year Botany>Chapter 9 - Principles of Inheritance and Variation>Questions>Q 1
In a plant, tallness is dominant over dwarfness and red flower is dominant over white. Starting with the parents work out a dihybrid cross. What is the standard dihybrid ratio? Do you think the values would deviate if the two genes in question are interacting with each other?
MEDIUM
12th Andhra Pradesh Board
IMPORTANT
Intermediate Second Year Botany>Chapter 9 - Principles of Inheritance and Variation>Questions>Q 1)

What will be the phenotypic ratio in the offsprings obtained from the following crosses?

Aa аа

Note: Gene A is dominant over gene a.

MEDIUM
12th Andhra Pradesh Board
IMPORTANT
Intermediate Second Year Botany>Chapter 9 - Principles of Inheritance and Variation>Questions>Q 1)

What will be the phenotypic ratio in the offsprings obtained from the following crosses?

AA aa

Note: Gene A is dominant over gene a.

MEDIUM
12th Andhra Pradesh Board
IMPORTANT
Intermediate Second Year Botany>Chapter 9 - Principles of Inheritance and Variation>Questions>Q 1)

What will be the phenotypic ratio in the offspring obtained from the following crosses?

Aa Аа

Note: Gene A is dominant over gene a.

MEDIUM
12th Andhra Pradesh Board
IMPORTANT
Intermediate Second Year Botany>Chapter 9 - Principles of Inheritance and Variation>Questions>Q 1)

What will be the phenotypic ratio in the offspring obtained from the following crosses?

Aa АA

Note: Gene A is dominant over gene a.