Heredity

Q.

The term genetics was coined by whom?

Q.

A trait in an organism is influenced by

1. Paternal DNA only

2. Maternal DNA only

3. Both Maternal and Paternal DNA

4. Neither by paternal nor maternal DNA

Q.

Give a technical term to a specific part of a chromosome that determines hereditary characteristics.

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. Write a short note on beaks of birds. (2 Marks)

Q. How many sex chromosomes are present in a single cell of human beings?

1. 2
2. 4
3. 22
4. 23

Q.

Scientific term for "Science of heredity and function" is_______.

Q.

Define variation. [1 MARK]

Q. Linkage in plants was first shown in.

1. Zea mays
2. Lathyrus odoratus
3. Oenothera lamarckiana
4. Pisum sativum

Q. The _______ is the component of our chromosome that controls heredity.

1. RNA
2. histone
3. DNA
4. protein

Q. ____________ refers to the transmission of characters or traits from parents to their progeny.

1. Reproduction
2. Inheritance
3. Genetics
4. Evolution

Q. The transmission of characters from parents to offsprings is called heredity.

1. False

2. True

Q. Rewrite and complete the following sentences by inserting the correct word in the space indicated.
Transmission of characters from parents of off springs is known as ___

Q. Write a short note on beaks of birds. (2 Marks)

Q. What is the technical name for the genetic constitution of an organism?

1. Phenotype
2. Factor
3. Trait
4. Genotype

Q.

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

1. Reproduction

2. Coordination

3. Death

4. Heredity

Q. Deficiency of _________can cause discolouration of hair.​

1. fat
2. protein

Q.

The term 'Genetics' was coined by

1. William Bateson

2. Gregor Mendel

3. Thomas Hunt Morgan

4. W. Johannsen

Q. Deficiency of _________can cause discolouration of hair.​

1. protein
2. fat

Q.

What determines the process by which traits and characteristics are inherited?

Q. When a member of a pair of alleles expresses itself fully in the hybrid, it is called as

1. Segregation
2. Dominance
3. Incomplete dominance
4. Co-dominance

Q. Match the following.

1. Prevents dust entry
2. Prevents collapse
3. Increase surfacearea
4. Assists inhalation