Extra nuclear inheritance is a consequence of presence of genes in _____.

(a)

Mitrochondria and chloroplasts

(b)

Endoplasmic reticulum and mitrochondria

(c)

Ribosomes and chloroplast

(d)

Lysososmes and ribosomes

In order to find out the different types of gametes produced by a pea plant having the genotype AaBb, it should be crossed to a plant with the genotype _____.

(a)

aaBB

(b)

AaBB

(c)

AABB

(d)

aabb

How many different kinds of gametes will be produced by a plant having the genotype AABbCC?

(a)

Three

(b)

Four

(c)

Nine

(d)

Two

Which one of the following is an example of polygenic inheritance?

(a)

Flower colour in Mirabilis Jalapa

(b)

Production of male honey bee

(c)

Pod shape in garden pea

(d)

Skin Colour in humans

In Mendel’s experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F₂ generation of the cross RRYY x rryy?

(a)

Only round seeds with green cotyledons

(b)

Only wrinkled seeds with yellow cotyledons

(c)

Only wrinkled seeds with green cotyledons

(d)

Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledons

Test cross involves ____.

(a)

Crossing between two genotypes with recessive trait

(b)

Crossing between two F₁ hybrids

(c)

Crossing the F₁ hybrid with a double recessive genotype

(d)

Crossing between two genotypes with dominant trait

In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seed plant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in F₁ generation?

(a)

9:1

(b)

1:3

(c)

3:1

(d)

50:50

The genotype of a plant showing the dominant phenotype can be determined by _____.

(a)

Back cross

(b)

Test cross

(c)

Dihybrid corss

(d)

Pedigree analysis

Select the correct statement from the ones given below with respect to dihydrid cross.

(a)

Tightly linked genes on the same chromosomes show very few combinations

(b)

Tightly linked genes on the same chromosomes show higher combinations

(c)

Genes farapart on the same chromosomes show very few recombinations

(d)

Genes loosely linked on the same chromosomes show similar recombinations as the tightly linked ones

Which Mendelian idea is depicted by a cross in which the F₁ generation resembles both the parents.

(a)

Incomplete dominance

(b)

Law of dominance

(c)

Inheritance of one gene

(d)

Co-dominance

Fruit colour in squash is an example of ______.

(a)

Recessive epistatsis

(b)

Dominant epistasis

(c)

Complementary genes

(d)

Inhibitory genes

In his classic experiments on Pea plants, Mendel did not use ______.

(a)

Flowering position

(b)

Seed colour

(c)

Pod length

(d)

Seed shape

The epistatic effect, in which the dihybrid cross 9:3:3:1 between AaBb Aabb is modified as ______.

(a)

Dominance of one allele on another allele of both loci

(b)

Interaction between two alleles of different loci

(c)

Dominance of one allele to another alleles of same loci

(d)

Interaction between two alleles of some loci

In a test cross involving F₁ dihybrid flies, more parental type offspring were produced than the recombination type offspring. This indicates ______.

(a)

The two genes are located on two different chromosomes

(b)

Chromosomes failed to separate during meiosis

(c)

The two genes are linked and present on the some chromosome

(d)

Both of the characters are controlled by more than one gene

The genes controlling the seven pea characters studied by Mendel are known to be located on how many different chromosomes?

(a)

Seven

(b)

Six

(c)

Five

(d)

Four

Which of the following explains how progeny can posses the combinations of traits that none of the parent possessed?

(a)

Law of segregation

(b)

Chromosome theory

(c)

Law of independent assortment

(d)

Polygenic inheritance

“Gametes are never hybrid”. This is a statement of ______.

(a)

Law of dominance

(b)

Law of independent assortment

(c)

Law of segregation

(d)

Law of random fertilization

Gene which suppresses other genes activity but does not lie on the same locus is called as _____.

(a)

Epistatic

(b)

Supplement only

(c)

Hypostatic

(d)

Codominant

Pure tall plants are crossed with pure dwarf plants. In the F₁ generation, all plants were tall. These tall plants of F₁ generation were selfed and the ratio of tall to dwarf plants obtained was 3:1. This is called ______.

(a)

Dominance

(b)

Inheritance

(c)

Codominance

(d)

Heredity

The dominant epistatis ratio is ______.

(a)

9:3:3:1

(b)

12:3:1

(c)

9:3:4

(d)

9:6:1

Select the period for Mendel’s hybridization experiments.

(a)

1856 - 1863

(b)

1850 - 1870

(c)

1857 - 1869

(d)

1870 - 1877

Among the following characters which one was not considered by Mendel in his experimentation pea?

(a)

Stem – Tall or dwarf

(b)

Trichomal glandular or non-glandular

(c)

Seed – Green or yellow

(d)

Pod – Inflated or constricted