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

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

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

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

(a)

Flowering position

(b)

Seed colour

(c)

Pod length

(d)

Seed shape

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

Gregor Mendel ___________
(i) was born in Czechoslovakia
(ii) did his experiments in Pisum fulvum
(iii) was the first systemic researcher in genetics
(iv) Published his results in the paper "Experiments on Plant Hybrids"

(a)

All are correct

(b)

(ii), (iii), (iv) are correct

(c)

(i), (iii),(iv) are correct

(d)

(i), (iii), (iv) are correct

Assertion (A): Codominance is an example of intragenic interaction
Reason (R): Interaction takes place between the alleles of the same gene

(a)

A and R are correct R explains A

(b)

A and R are incorrect

(c)

A is correct R is incorrect

(d)

A is incorrect R is correct

Identify the mismatched pair

(a)

Chloroplast inheritance - Gregor Mendel

(b)

Polygenic inheritance - H. Nilsson

(c)

Lethal genes - E. Baur

(d)

Incomplete dominance - Carl Correns

Result of incomplete dominance is __________

(a)

Intermediate genotype

(b)

Intermediate phenotype

(c)

Recessive phenotype

(d)

Epistasis

The 1 : 2 : 1 ratio of co-dominance process Mendel's ___________

(a)

Law of dominance

(b)

Law of recessiveness

(c)

Law of segregation

(d)

Law of independent assortment