Heredity
Heredity: Overview
The transfer of traits from parents to offspring through sexual or asexual reproduction is known as heredity. In this topic, Mendel’s Law of Inheritance explains how these traits will be inherited from parents.
Important Questions on Heredity
Give the appropriate biological or technical term for the following-
The condition in which a pair of chromosomes carries similar alleles of a particular character.

The tall tea plant bearing red colour flowers (TTRR) is crossed with dwarf pea plant bearing white flowers (ttrr). Represents the result obtained in F2 generation of dihybrid cross with the help of checker board. Mention the ratio of different plants obtained in F2 generation.

Why are traits acquired during its lifetime of an individual not inherited?

In the green gram, the development of two flowers at the axial position is a recessive character, while the development of a single flower at the axial position is a dominant character. If the dominant character is represented by 'SS' and the recessive by 'ss' then answer the following question.
In the green gram plant, only a single flower at the axial position is observed in F1 progeny because it is a _____.

In the green gram, the development of two flowers at the axial position is a recessive character, while the development of a single flower at the axial position is a dominant character. If the dominant character is represented by 'SS' and the recessive by 'ss' then answer the following question.
What will be set of genes present in the F1 generation?

In the green gram, the development of two flowers at the axial position is a recessive character, while the development of a single flower at the axial position is a dominant character. If the dominant character is represented by 'SS' and the recessive by 'ss' then answer the following question.
Phenotype refers to the _____ of an individual.

Name the cell organelle/structure, which is commonly called heredity vehicles.

What is the difference between genotype and phenotype?

Attached earlobes is a recessive trait in humans.

What are the cells containing a single set of chromosomes called? (Answer in a single word)

The '2n' number of chromosomes in a human female represents:

How many chromosomes are there in meiocytes of human beings? (Write in numbers)

Law of independent assortment can be explained by monohybrid cross.

The phenotypic ratio of Mendel's monohybrid cross in F2 generation is

Gender of a child is determined by the male partner of the couple.

The DNA fragments can be isolated using the technique called Agarose gel electrophoresis.

Observe the table in which size of different DNA fragments are given and answer the question:
DNA | A | B | C |
Size (in base pairs) | 700 | 1500 | 3000 |
In the process of separating DNA fragments which fragments moves faster?

Sperm cells contain an X or a Y chromosome.


A pure dominant pea plant producing round-yellow seeds is crossed with pure recessive pea plant producing wrinkled-green seeds. The number plants bearing round-green seeds in the F1 generation of Mendel's experiment is
