Principles of Inheritance and Variation Test

Question 1
1 / -0

Mendel performed his experiment on garden pea species and gave rules of heridity. Give the scientific name of the species.

A
Zea mays

B
Pisum sativum

C
Phaseolus mungo

D
Rana tigrina

Question 2
1 / -0

How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in onecharacter with contrasting traits?

A
2

B
14

C
8

D
4

Question 3
1 / -0

In a human male, a sperm will contain :

A
Both X and Y chromosomes

B
Only Y Chromosomes

C
Only X chromosome

D
Either X or Y Chromosomes

Question 4
1 / -0

How many different types of gametes can be formed by $${F_1}$$ progeny, resulting from the following cross:
AA BB CC $${\times}$$ aa bb cc.

A
3

B
8

C
27

D
64

Question 5
1 / -0

Phenotypic and genotypic ratios according to Mendel's pattern of inheritance is

A
Different

B
Same

C
Average

D
None of the above

Question 6
1 / -0

Mrs. Verma has an autosomal gene pair 'Bb' and she contain x-linked gene 'd'. What is the percentage of gamete, which contain 'bd' genes?

A
1/2 or 50%

B
1/4 or 25%

C
3/4 or 75%

D
1 or 100%

Question 7
1 / -0

Which of the following discoveries resulted in a Nobel Prize?

A
Genetic engineering

B
X-rays induce sex-linked recessive lethal mutations

C
Cytoplasmic inheritance

D
Recombination of linked genes

Question 8

1 / -0

Match the following and select the correct match.

	List I		List II
A	Mendel performed .................. between plants having alternate traits of a character, e.g., tall and dwarf, coloured flower and white flower.	1	Second filial
B	For this he removed .................. (emasculation) from 50% of the flowers of each type and used them as female parents.	2	Reciprocal crosses
C	.................. from the other flower were collected and dusted over the stigma of these flowers. The pollinated flowers were covered with paper bags and allowed to form pods with seeds.	3	Monohybrid cross
D	The cross involving two traits of a single character is called .....................	4	First filial generation
E	Cross involving traits of two characters is known as ..................	5	Anthers
F	The seeds of the cross were collected and sown next year. The plants were hybrid in nature. They constituted the ................ or $$F_1$$ generation.	6	Pollen
G	Self Breeding for $$F_2$$ and $$F_3$$ generations. Plants of $$F_1$$ generation were allowed to perform ................... or self-fertilization.	7	Third filial generation
H	Mendel collected seeds of the new generations. Plants raised from them were called ...................	8	Dihybrid cross
I	or $$F_2$$ ..............	9	Self-pollination
J	Further self-pollination of $$F_2$$ plants produced $$F_3$$	10	Generation

A- 2, B- 5, C- 6, D- 3, E- 8, F- 4, G- 9, H- 1, I- 10, J- 7

A- 2, B- 5, C- 6, D- 3, E- 8, F- 9, G- 4, H- 1, I- 10, J- 7

A- 2, B- 5, C- 6, D- 8, E- 3, F- 4, G- 9, H- 1, I- 10, J- 7

A- 2, B- 6, C- 5, D- 3, E- 8, F- 4, G- 9, H- 1, I- 10, J- 7

Question 9
1 / -0

The genome of Caenorhabditis elgans consists of how many base pairs and genes?

A
3 billion base pairs and 30,000 genes

B
180 million base pairs and 13,000 genes

C
4.7 million base pairs and 4,000 genes

D
97 million base pairs and 18,000 genes

E
12 million base pairs and 6,000 genes

Question 10
1 / -0

Human skin colour is controlled by several gene pairs. Let us assume here, that there are just three gene pairs on different chromosomes and that for each pair there are two alleles - an incompletely dominant one that codes for melanin deposition and an incompletely recessive one that codes for no melanin deposition. If a very dark skinned person marries a very light skinned woman, what will be the chance that their offspring will have very dark skin?

A
0

B
1/4

C
5/8

D
9/64

Submit Test

Principles of I...

Question 1

Zea mays

Pisum sativum

Phaseolus mungo

Rana tigrina

Question 2

2

14

8

4

Question 3

Both X and Y chromosomes

Only Y Chromosomes

Only X chromosome

Either X or Y Chromosomes

Question 4

3

8

27

64

Question 5

Different

Same

Average

None of the above

Question 6

1/2 or 50%

1/4 or 25%

3/4 or 75%

1 or 100%

Question 7

Genetic engineering

X-rays induce sex-linked recessive lethal mutations

Cytoplasmic inheritance

Recombination of linked genes

Question 8

A- 2, B- 5, C- 6, D- 3, E- 8, F- 4, G- 9, H- 1, I- 10, J- 7

A- 2, B- 5, C- 6, D- 3, E- 8, F- 9, G- 4, H- 1, I- 10, J- 7

A- 2, B- 5, C- 6, D- 8, E- 3, F- 4, G- 9, H- 1, I- 10, J- 7

A- 2, B- 6, C- 5, D- 3, E- 8, F- 4, G- 9, H- 1, I- 10, J- 7

Question 9

3 billion base pairs and 30,000 genes

180 million base pairs and 13,000 genes

4.7 million base pairs and 4,000 genes

97 million base pairs and 18,000 genes

12 million base pairs and 6,000 genes

Question 10

0

1/4

5/8

9/64

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