Principles of Inheritance and Variation Test

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Principles of Inheritance and Variation Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

The innate tendency of offspring to resemble their parents is called

A
Variation

B
Heredity

C
Inheritance

D
Resemblance

Solution

The innate tendency of offspring to resemble their parents is called heredity. The offspring resembles to parent due to same genetic combination inherited from parents.
Question 2
1 / -0

Monohybrid ratio is

A
3:1

B
9:3:1

C
9:3:3:1

D
9:1

Solution

Monohybrid ratio is the ratio of different phenotypic traits obtained on hybridizing single pair of trait. It is 3:1. When tall pea plant is crossed with dwarf, the offspring obtained are in 3/4 tall and 1/4 dwarf.
Question 3
1 / -0

Genotype is the

A
Expressed genes

B
Trait expressed

C
Genetic combination

D
Genetic constitution of the phenotype

Solution

Genotype is the genetic combination of an individual. TT and Tt are genotypically different but phenotypically appear tall.
Question 4
1 / -0

Who is regarded as the father of genetics?

A
Watson

B
Morgan

C
Mendel

D
Bateson

Solution

Mendel is regarded as the father of genetics due to his initial law of inheritance given by him on the basis of Hybridisation conducted by him on garden pea.
Question 5
1 / -0

Material used for conducting experiments on genetic traits by Mendel was

A
Oryza sativa

B
Lathyrusodaratus

C
Mirabilis jalappa

D
Pisumsativum

Solution

Mendel conduct his hybridization experiment on garden pea (Pisumsativum) using different contrasting pair of traits.
Question 6
1 / -0

The tendency of offspring to differ from parents is called

A
Variation

B
Resemblance

C
Heredity

D
Inheritance

Solution

Variation is the tendency of offspring to differ from its parents. Variation occurs due to change in genetic makeup of offsprings.
Question 7
1 / -0

The physical expression or appearance of a character is called as

A
Genotype

B
Morphology

C
Phenotype

D
Ecotype

Solution

The physical appearance of a character is called as phenotype. The genetic make of individual is called genotype. Tallness, round, wrinkled, yellow etc. are physical appearance.
Question 8
1 / -0

The alternate forms of a gene is called

A
Dominant character

B
Alleles

C
Alternate gene

D
Recessive character

Solution

The alternate forms of a gene are called alleles. Each trait is controlled by a pair of alleles.
Question 9
1 / -0

Each gametes carry

A
Only one of the alleles

B
Glucose

C
Only dominant allele

D
Only recessive allele

Solution

Each gametes carry single set of chromosomes. During gamete formation each pair of alleles separate from each other as reduction division occurs.
Question 10
1 / -0

The best method to determine the homozygous and heterozygous of an individual is

A
Inbreeding

B
Back cross

C
Self-fertilization

D
Test cross

Solution

Homozygous and heterozygous of an individual is determined by test cross method in which homozygous recessive is crossed with F1 hybrid individual.

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Principles of Inheritance and Variation Test - 3

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Principles of Inheritance and Variation Test - 3

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SHARING IS CARING

Question 1

Variation

Heredity

Inheritance

Resemblance

Solution

Question 2

3:1

9:3:1

9:3:3:1

9:1

Solution

Question 3

Expressed genes

Trait expressed

Genetic combination

Genetic constitution of the phenotype

Solution

Question 4

Watson

Morgan

Mendel

Bateson

Solution

Question 5

Oryza sativa

Lathyrusodaratus

Mirabilis jalappa

Pisumsativum

Solution

Question 6

Variation

Resemblance

Heredity

Inheritance

Solution

Question 7

Genotype

Morphology

Phenotype

Ecotype

Solution

Question 8

Dominant character

Alleles

Alternate gene

Recessive character

Solution

Question 9

Only one of the alleles

Glucose

Only dominant allele

Only recessive allele

Solution

Question 10

Inbreeding

Back cross

Self-fertilization

Test cross

Solution

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