NAT IIB Biological Science Preparation Online Test for Pakistani Students

NAT II Biological Science

Try The NAT II Biological Science

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  • Time Allowed25

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NAT II Biological Science

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Question # 1

If sex chromosomes are more than two in an individual, these are called as

Question # 2

When all the original specimens and their duplicates have been lost or destroyed

Question # 3

A fungal hyphae having 2 nuclei of different genetic type is called as

Question # 4

Aggregates of closely related species

Question # 5

Phanerogamy includes

Question # 6

1. ----------- is the process in which plasma membrane starts pulling away from the cell wall;

Question # 7

Why molds can grow on oranges and jelly kept in refrigerator where generally bacteria cannot reach

Question # 8

Vegetative parts of ----------- are easier to observe than reproductive parts

Question # 9

The phenomenon of interference / hide the effect of one gene present at one locus by the other gene present at other locus is called

Question # 10

A special protein that generates voltage across a membrane is called;

Question # 11

In plants the process of respiration is also termed as;

Question # 12

The non-protein part covalently bonded to enzyme is

Question # 13

The appendages of anthers form a corona

Question # 14

Latex produced by Cryptostegia grandiflora is a source of

Question # 15

Apple is a member of family

Question # 16

While studying the components of an ecosystem what is the biotic component in all these examples?

Question # 17

When a single gene effects two or more traits the phenomenon is called

Question # 18

Which statement is not true about the family Euphorbiaceae

Question # 19

Ray florets have ------------ flowers

Question # 20

Following statement is in accordance to Darwinisw

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Here is List Of Chapter Wise Tests

Ch. # Test Name MCQs Available PDF File Launch Test
0 NAT-IIB Biological Science Botany Hard Test 163 Download PDF Launch Test

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NAT-II Botony Important MCQ's

Sr.# Question Answer
1 In ---------- stems & roots of plants increase in diameter
A. Primary growth
B. Secondary growth
C. Permanent growth
D. Apical growth
2 Members of compositeae are
A. Topical
B. Sub-tropical
C. Temperate
D. Cosmopolitan
3 Cohesion theory of ascent of sap is proposed by
A. Zimmernmann
B. John jolly
C. Dixon
D. Both a & b
4 The phenomenon of interference / hide the effect of one gene present at one locus by the other gene present at other locus is called
A. Epistasis
B. Crossing over
C. Gene linkage
D. Synapsis
5 The criteria of the classification are the ------------ on which the classification is based.
A. Groups
B. Divisions
C. Characters
D. Orders
6 When a species is described in one genus and later transferred to another genus, the specific epithet
A. Homonym
B. Synonym
C. Legitimate
D. Illegitimate
7 Locus is
A. Segment of chromosome
B. Position of a gene on the chromosome
C. Genes present on one chromatid
D. Collection of genes at specific part of chromosome
8 Cucumissativusis the botanical name of
A. Bitter gourd
B. Vegetable marrow
C. Cucumber
D. Watermelon
9 Seed of family Ranunculaceae is
A. Endospermic
B. Endosperm oily
C. pericarp
D. Both a and b
10 The anthers are two celled and pollen grains are in the form of tetrads and are found in the sac like sturctures
A. Polonium
B. Gynoestigium
C. Corpusculum
D. Translator

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