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 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

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

“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

Cotyledon color

(1)

Grain color in maize

Pod shape

(2)

Seed capsule in xxxxx

Co-dominance

(3)

Inflated / Constricted

Supplementary genes

(4)

Green / Yellow

Duplicate genes

(5)

1 : 2 : 1

Name the seven contrasting traits of Mendel.

What is back cross?

Define Genetics.

Name the four major subdisciplines of genetics.

What is genotype & phenotype?

Name any two extranuclear lnheritance.

What are multiple alleles?

Differentiate incomplete dominance and codominance.

State the law of segregation.

Write a short notes on Atavism.

Describe dominant epistasis with an example. 

Differentiate continuous variation with discontinuous variation.

Bring out the inheritance of chloroplast gene with an example.