Genetics

Q.

The process of combination of male and female gametes is called as

1. Mitosis

2. Reduction division

3. Meiosis

4. Fertilisation

Q. What is the basic structural unit of protein?

1. Amino acid
2. Glucose
3. DNA
4. Lipid

Q.

A collection of plants and seeds having diverse alleles of all the genes of a crop is called?

1. Gene library

2. Genome

3. Germplasm

4. Herbarium

Q. The number of codons that code different amino acids is

1. 31
2. 64
3. 61
4. 16

Q.

Who first studied the shape of the DNA molecule?

1. Rosalind Franklin

2. Watson

3. Crick

4. Watson and Crick

Q. Prerequisite for effective exploitation of natural genes available in the populations is

1. Selection of superior recombinants
2. Evaluation and selection of parents
3. Testing, release and commercialization of new cultivars
4. Collection and preservation of wild varieties, species and their relatives

Q. _____ is the passing-on of traits from parents to their offspring, either through asexual reproduction or sexual reproduction.

1. Coordination
2. Reproduction
3. Hybridization
4. Heredity

Q. What is meiosis in simple terms?

Q. ______ is a transfer of physical and genetic characters from one generation to another generation.

1. Heredity
2. Mutation
3. Variation
4. Genetics

Q. Where are genes located? What is the chemical nature of genes?

Q.

Which of the following can be termed as biological heredity?

1. Transmission of cultural legacy

2. Acquiring food habits and styles

3. Transmission of traits governing complexion

4. Acquiring life skills from parents

Q. Freckles on the skin are caused because of

1. decreased exposure to Sun
2. increased production of melanin
3. decreased exposure to moisture
4. increased production of sweat

Q.

Protein has definite shape in certain pH and temperature. what is the role of it during hydrolysis of fat protein and carbohydrates?

Q. The most apparent feature of an aged person, a healthy youth or a tender infant is:

1. Texture of the skin
2. Colour of the eyelashes
3. Shape of the nose
4. Size of the ears

Q. In natural populations, can act in opposition to genetic divergence.

1. DNA replication
2. hybridization
3. dominancy
4. gamete segregation

Q.

Observe the picture below. How is it possible to have so many diffrent varieties of butterflies and chillies? Choose the correct option for the reason.

1. Environment

2. Mode of nutrition

3. Sexual reproduction

4. Temperature differences

Q.

Which of the following can be termed as biological heredity?

1. Transmission of cultural legacy

2. Acquiring life skills from parents

3. Acquiring food habits and styles

4. Transmission of traits governing complexion

Q.

The process of transmission of parental characters to progeny is called ___.

1. Variation

2. Inheritance

3. Cloning

4. Transfusion

Q.

In some people melanin tends to form spotted patches giving rise to ___________.

Q.

The set of rules that determine the process by which traits and characteristics are reliably inherited is known as:

1. Reproduction

2. Hybridization

3. Heredity

4. Coordination

Q.

Which of the following can be termed as biological heredity?

1. Transmission of cultural legacy

2. Acquiring food habits and styles

3. Transmission of traits governing complexion

4. Acquiring life skills from parents

Q.

Genetics is the branch of science which deals with the study of _______.

1. cell function

2. heredity and variation

3. cell structure

4. relation between plant and environment

Q. What is the source of genetic variations in human beings?

1. Mitosis
2. Growth
3. Sexual reproduction
4. DNA as the genetic material