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

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

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

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

An allede is__________

(a)

another word for a gene

(b)

Alternate forms of a gene

(c)

morphological expression of a gene

(d)

genetic make up of an organism

Crossing of F₁ to anyone of the parent refers to _____________

(a)

selfing

(b)

back cross

(c)

test cross

(d)

all of the above

Identify the mismatched pair

(a)

Chloroplast inheritance - Gregor Mendel

(b)

Polygenic inheritance - H. Nilsson

(c)

Lethal genes - E. Baur

(d)

Incomplete dominance - Carl Correns

'Gametes are never hybrid' is concluded by ___________

(a)

Law of dominance

(b)

Law of segregation

(c)

Law of independent environment

(d)

Law of lethality

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

Cotyledon color

(1)

Green / Yellow

Pod shape

(2)

Seed capsule in xxxxx

Duplicate genes

(3)

Leaf color in rice plant

Inhibitory genes

(4)

Inflated / Constricted

Duplicate genes

(5)

15:1

Name the seven contrasting traits of Mendel.

Give the names of the scientists who rediscovered Mendelism

Who coined the term genetics? Also, define it.

Explain Heredity and variations

Which organism was studied by Gregor Mendel? How many traits does he considered on his experiments

Differentiate incomplete dominance and codominance.

What is meant by cytoplasmic inheritance

Point out any three importance of variations.

List out the reasons for the selection of pea plant by Mendel.

Mala is a genetic research student. She was given a plant to identify whether it is a homozygous or heterozygous for a particular trait. How will she proceed further?

Explain with an example how single genes affect multiple traits and alleles the phenotype of an organism.

Bring out the inheritance of chloroplast gene with an example.