Biology Test

Question 1

1 / -0

Match the following genes of the Lac operon with their respective products.

	List I		List II
(a)	i gene	(i)	β-galactosidase
(b)	z gene	(ii)	Permease
(c)	a gene	(iii)	Repressor
(d)	y gene	(iv)	Transacetylase

Select the correct option according to (a), (b), (c) and (d) respectively.

(i), (iii), (ii), (iv)

(iii), (i), (ii), (iv)

(iii), (i), (iv), (ii)

(iii), (iv), (i), (ii)

Question 2
1 / -0

The cavities of body organs such as the kidney, blood vessels, heart and lungs are lined by:

A
Simple squamous epithelium

B
Simple cuboidal epithelium

C
Simple columnar epithelium

D
Ciliated columnar epithelium

Question 3
1 / -0

Which organelle acts as a pressure vessel?

A
Cell membrane

B
Cell wall

C
Vacuole

D
Protoplasm

Question 4

1 / -0

Match the pteridophytes with their common names:

A	B
1. Psilotum	a. Ground pine
2. Marsilea	b. Spike moss
3. Selaginella	c. Whisk fern
4. Lycopsida	d. Water fern

1 - a, 2 - d, 3 - b, 4 - c

1 - c, 2 - b, 3 - d, 4 - a

1 - c, 2 - d, 3 - b, 4 - a

1 - d, 2 - c, 3 - b, 4 - a

Question 5
1 / -0

Which of the following sequences of the steps involved in the process of polymerisation of amino acids to form a polypeptide is correct?

(1) Activation of amino acids, Termination of polypeptide synthesis, Elongation of polypeptide synthesis, Initiation of polypeptide synthesis

(2) Initiation of polypeptide synthesis, Activation of amino acids, Elongation of polypeptide synthesis, Termination of polypeptide synthesis

(3) Termination of polypeptide synthesis, Elongation of polypeptide synthesis, Activation of amino acids, Initiation of polypeptide synthesis

(4) Activation of amino acids, Initiation of polypeptide synthesis, Elongation of polypeptide synthesis, Termination of polypeptide synthesis

A
(1)

B
(2)

C
(3)

D
(4)

Question 6
1 / -0

Recent human population growth is attributed to:

A. agricultural revolution

B. genetic drift

C. industrial revolution

D. medical advances

E. altruistic behaviour

A
A, C, D and E

B
B and E

C
A, B, C and D

D
D and E

Question 7
1 / -0

Filtration pressure in human kidneys is about:

A
\(15 \mathrm{~mm} \mathrm{~Hg}\)

B
\(75 \mathrm{~mm} \mathrm{~Hg}\)

C
\(45 \mathrm{~mm} \mathrm{~Hg}\)

D
None of these

Question 8
1 / -0

In leguminous plants leghemoglobin protects activity_________.

A
Nitrogenase

B
Protiase

C
Nitrate reductase

D
Both (A) and (B)

Question 9
1 / -0

Which one of the following is included in the in-situ conservation?

A
Seed bank

B
Genebank

C
Zoological parks

D
Biosphere reserves

Question 10
1 / -0

Which of the following statement is incorrect w.r.t toapomixis?

A
It is a form of asexual reproduction that mimics sexual reproduction

B
In apple and pear , the diploid egg develops into the triploid embryo

C
Asteraceae and grasses involved shows apomixes

D
Opuntia and citrus arise from the diploid saprophytic cell such as nucellus or integuments

Submit Test

Biology Test - ...

Question 1

(i), (iii), (ii), (iv)

(iii), (i), (ii), (iv)

(iii), (i), (iv), (ii)

(iii), (iv), (i), (ii)

Question 2

Simple squamous epithelium

Simple cuboidal epithelium

Simple columnar epithelium

Ciliated columnar epithelium

Question 3

Cell membrane

Cell wall

Vacuole

Protoplasm

Question 4

1 - a, 2 - d, 3 - b, 4 - c

1 - c, 2 - b, 3 - d, 4 - a

1 - c, 2 - d, 3 - b, 4 - a

1 - d, 2 - c, 3 - b, 4 - a

Question 5

(1)

(2)

(3)

(4)

Question 6

A, C, D and E

B and E

A, B, C and D

D and E

Question 7

\(15 \mathrm{~mm} \mathrm{~Hg}\)

\(75 \mathrm{~mm} \mathrm{~Hg}\)

\(45 \mathrm{~mm} \mathrm{~Hg}\)

None of these

Question 8

Nitrogenase

Protiase

Nitrate reductase

Both (A) and (B)

Question 9

Seed bank

Genebank

Zoological parks

Biosphere reserves

Question 10

It is a form of asexual reproduction that mimics sexual reproduction

In apple and pear , the diploid egg develops into the triploid embryo

Asteraceae and grasses involved shows apomixes

Opuntia and citrus arise from the diploid saprophytic cell such as nucellus or integuments

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