laboursonline – MCQs, Mock Tests | General Science Basic Science Genetics.

The branch of biology that deals with the study of transmission of hereditary materials from a generation to the next is

1. Physiology
2. Ecology
3. Embryology
4. Genetics

✅ Correct Answer: 4

The revolutionary high yielding and disease resistant varieties of important crops are the products of

1. Plant breeding
2. Linkage and cross over
3. Mutation
4. Gene expression

✅ Correct Answer: 1

Haemophilia colour blindness and diabetes are the

1. Hereditary diseases
2. Bacterial diseases
3. Viral diseases
4. Contact diseases

✅ Correct Answer: 1

Mendel performed experiments on garden pea

1. From 1824 to 1847
2. From 1856 to 1864
3. From 1865 to 1884
4. From 1884 to 1900

✅ Correct Answer: 2

The youngest branch of biology and its history goes back to 1900 is

1. Embryology
2. Biotechnology
3. Physiology
4. Genetics

✅ Correct Answer: 4

An applied branch of genetics is

1. Anatomy
2. Morphology
3. Plant breeding
4. Physiology

✅ Correct Answer: 3

The branch of biology which revolutioned several branches of sciences is

1. Bacteriology
2. Embryology
3. Physiology
4. Genetics

✅ Correct Answer: 4

The tendency of offspring to differ is slight degree from their parents is called

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

✅ Correct Answer: 2

Father of genetics

1. Morgan
2. Muller
3. Hugo de Vries
4. Mendel

✅ Correct Answer: 4

The branch of biology which helps in the understanding of many hereditary diseases is

1. Morphology
2. Physiology
3. Plant breeding
4. Genetics

✅ Correct Answer: 4

Agriculture horticulture animal husbandry fisheries are revolutioned by

1. Genetics
2. Morphology
3. Physiology
4. Embryology

✅ Correct Answer: 1

Mendel was born in the year

1. 1824
2. 1847
3. 1865
4. 1900

✅ Correct Answer: 1

The mechanism of heredity was explained first by

1. Mendel
2. Morgan
3. Viral diseases
4. Punnet

✅ Correct Answer: 1

The branch of biology which is concerned with the causes of resemblances and variations among related organisms is called

1. Anatomy
2. Physiology
3. Embryology
4. Genetics

✅ Correct Answer: 4

Brown eyed parent having a blue eyed child is due to

1. Variation
2. Mutation
3. Heredity
4. Crossing over

✅ Correct Answer: 1

The inheritance of Characters of one generation by successive generations is known as

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

✅ Correct Answer: 2

Mendel worked on pea plant for about

1. 5 years
2. 8 years
3. 11 years
4. 13 years

✅ Correct Answer: 2

The branch of biology which opened a new era in the field of medical science is

1. Plant breeding
2. Physiology
3. Genetics
4. Embryology

✅ Correct Answer: 3

The branch of biology which is concerned with biological inheritance is called

1. Genetics
2. Embryology
3. Physiology
4. Biotechnology

✅ Correct Answer: 1

High yielding and disease resistant crops produced by plant breeding are

1. Paddy
2. Wheat
3. Groundnut
4. All the three

✅ Correct Answer: 4

What is it called when characters are transmitted from parent to offspring form one generation to the other

1. absorption
2. electron transport
3. inheritance
4. migration

✅ Correct Answer: 3

Botanical name of pea plant is

1. Pisum sativum
2. Lathyrus odoratus
3. Mirabilis jalapa
4. Antirrhinum

✅ Correct Answer: 1

The origin of Genetics owes to

1. Hugo de Vries
2. Carl Correns
3. Gregor Johann Mendel
4. Tschermark

✅ Correct Answer: 3

Mendel explained the principles of heredity by hybridization experiments on

1. Maize
2. Snap-dragon
3. Garden pea plant
4. Sweet pea

✅ Correct Answer: 3

The discipline dealing with inheritance of characters is called

1. Cytology
2. Evolution
3. Genetics
4. Embryology

✅ Correct Answer: 3

Mendel was born in a small village called

1. Brunn
2. Vienna
3. Heinzendorf
4. Austria

✅ Correct Answer: 3

Mendel worked on a pea plant called

1. Lathyrus odoratus
2. Pisum sativum
3. Viral diseases
4. Dolichos lablab

✅ Correct Answer: 2

Parent with dark hair but having red hair child is due to

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

✅ Correct Answer: 3

One of the youngest branches of biology is

1. Morphology
2. Physiology
3. Genetics
4. Biotechnology

✅ Correct Answer: 3

Each parent carried �something� which controlled the appearance of a particular character is

1. Allele
2. Locus
3. Homozygous
4. Factor

✅ Correct Answer: 4

Mendel�s contributions to genetics remained unknown for about

1. 8 years
2. 15 years
3. 35 years
4. 44 years

✅ Correct Answer: 3

he character that did not express in the F1 generation is 4.

1. Recessive
2. Dominant
3. Allele
4. Locus

✅ Correct Answer: 1

The character that appeared in the F1 generation is

1. Recessive
2. Dominant
3. Homozygous
4. Heterozygous

✅ Correct Answer: 2

Monohybrid genotypic ratio in Pisum sativum is

1. 3:01
2. 1:02:01
3. 9:06:01
4. 9:3:3:1

✅ Correct Answer: 2

Monohybrid Phenotypic ratio in pea plants is

1. 1:02:01
2. 9:06:01
3. 9:3:3:1
4. None of them

✅ Correct Answer: 2

Mendel�s work was rediscovered in the year

1. 1847
2. 1865
3. 1884
4. 1900

✅ Correct Answer: 4

Pod shape in pea plant is

1. Inflated
2. Round
3. Wrinkled
4. Oval

✅ Correct Answer: 1

Alternative forms of the same gene responsible for determining contrasting character is

1. Supplementary gene
2. Locus
3. Allele
4. Progeny

✅ Correct Answer: 3

The hybridization technique emasculation means the removal of

1. Stamen
2. Pistil
3. Corolla
4. Calyx

✅ Correct Answer: 1

he paper Experiments in plant hybridization was placed before the Natural History Society in

1. 1824
2. 1847
3. 1865
4. 1884

✅ Correct Answer: 3

The actual population of pea plants in F2 generation obtained by Mendel was

1. 787
2. 277
3. 1064
4. 8067

✅ Correct Answer: 3

Seed coat colour in pea plant is

1. Green
2. White
3. Yellow
4. Brown

✅ Correct Answer: 2

In a cross between two individuals pure for contrasting characters of a pair the character which is not represented in F1 generation is the

1. Dominant character
2. Recessive character
3. Incomplete Dominant character
4. Intermediate character

✅ Correct Answer: 2

Self fertilization of F1 hybrids is to yield

1. First filial generation
2. Second filial generation
3. Reciprocal cross
4. Back cross

✅ Correct Answer: 2

Mendel transferred pollen from dwarf plants to the stigmas of tall plants and this cross is known as

1. Back cross
2. Reciprocal cross
3. Test cross
4. Dihybrid cross

✅ Correct Answer: 2

Mendel called F1 tall plant as

1. Monohybrids
2. Dihybrids
3. Homozygotes
4. Heterozygotes

✅ Correct Answer: 1

Height of the dwarf pea plant selected by Mendel for his experiments was 65 cm 20.

1. 45 cm
2. 65 cm
3. 180 cm
4. 210 cm

✅ Correct Answer: 1

Number of varieties in the pea plant observed by Mendel was 34

1. 8
2. 7
3. 34
4. 35

✅ Correct Answer: 4

The principles of genetics explained by Mendel is known as ANSWER : : Mendelism 22.

1. Darwinism
2. Mendelism
3. Mutation
4. Variation

✅ Correct Answer: 2

Number of tall pea plants obtained in F2 generation of monohybrid cross was 277 787 4032 4035

1. 277
2. 787
3. 4032
4. 4035

✅ Correct Answer: 2

Cotyledon colour in pea plant is 24

1. Green
2. White
3. Yellow
4. Brown

✅ Correct Answer: 3

Mendel's work was rediscovered by 25.

1. Correns
2. Von Tschermak
3. Hugo de Vries
4. All the three

✅ Correct Answer: 4

The variety which gives rise to the same kind of offspring on self pollination for any number of generation is known as

1. Pure breeding
2. Impure breeding
3. Hybridization
4. Test cross

✅ Correct Answer: 1