Biotechnology MCQs

Question 1

Nucleotides sequence that is identical to its complementary strand when each is read in the same chemical direction for example GATC i-e; 5  GATC ... 3 3 ... CATG ... 5 these are called as:

Accepted Answer

Palindromic sequences

Answer

Flanking sequences

Answer

Nucleotide order

Answer

Antagonistic sequences

Question 2

An enzyme that cleaves a DNA duplex molecule, at a particular base sequence, usually within or near a palindromic sequence, is called:

Accepted Answer

Restriction endonuclease

Answer

Polymerase

Answer

Helicase

Answer

Ligase

Question 3

Which one of the following technique rapidly replicates specific target fragment of DNA without cloning?

Accepted Answer

Polymerase chain reaction

Answer

DNA sequencing

Answer

Genetic probe

Answer

Gel electrophoresis

Question 4

Genes of interest can be selected from a genomic library by using:

Accepted Answer

DNA probes

Answer

Cloning vectors

Answer

Gene targets

Answer

Restriction enzymes

Question 5

The deficiency of which of the following cause immunodeficiency?

Accepted Answer

Adenosine deaminase

Answer

Hypoxanthine-guanine transferase

Answer

Xanthine oxidase

Answer

PRPP synthetase

Question 6

Each sentence below has a blank indicating that something has been omitted. Choose the word that best fits in with the meaning of the sentence as a whole.Even though the physical structure of the college's lunchroom appears dilapidated in many regards, it was extended and_ quite lately.

Accepted Answer

Renovated

Answer

Stayed

Answer

Inspected

Answer

Conquered

Question 7

Not only, the students but also, their instructor --- been called to the principal's office.

Accepted Answer

has

Answer

have

Answer

were

Answer

was

Question 8

In this section of logical deduction, the question consists of a brief passage (usually a report containing certain data regarding some social or economic problem), followed by certain inferences based on it. The student is required to analyze the contents (or data) of the passage and grasp the desirable facts from it. Then, student has to consider each of the given inferences in the context of the given passage. decide upon its degree of truth or falsity and then choose the hest alternative provided accordingly.Primary education in Sindh is in a poor shape. Pupils in over 50 percent of the schools read in the open throughout the year. Over six million children born to lower Income group parents remain unlettered. Not even one percent of the 63,000 primary schools have facilities of furniture, toilet, drinking water and games. 3 113 new teachers have been appointed in the current financial year out of which 2747 are women. Now each of the 13,270 primary schools have at least two teachers.630 primary schools in Sindh have all the facilities like furniture, toilet, drinking water, games.

Accepted Answer

Definitely false

Answer

Definitely true

Answer

Probably true

Answer

Data inadequate

Answer

Probably false

Question 9

Directions: In the following question, a number sequence is given with one term missing. Choose the correct term that will continue the same pattern and replace the question mark in the given sequence.1,2,4,7,?,16

Accepted Answer

11

Answer

8

Answer

9

Answer

13

Question 10

Directions: Read the following information and give answer.In a cricket season, Pakistan -defeated Australia twice, West Indies defeated Pakistan twice, Australia defeated West Indies twice, Pakistan defeated New Zealand twice, and West Indies defeated New Zealand twice.Which country has lost the greatest number of times?

Accepted Answer

New Zealand

Answer

Pakistan

Answer

Australia

Answer

West Indies

Question 11

In the following question, two statements numbered I and II are given. There may be cause and effect relationship between the two statements. These two statements may be the effect of the same cause or independent causes. These statements may be independent causes without saving any relationship. Read both the statements in question and mark your answer as:A. If statement I is the cause and statement II is its effect;B. If statement II is the cause and statement, I is its effect;C. If both the statements I and II are independent causes;D. If both the statements I and II are effects of independent causes;E. If both the statements I and II are effects of some common causes;I. All the schools in the area had to be kept closed for most part of the week.II. Many parents have withdrawn their childrenN from the local schools.

Accepted Answer

If both the statements I and II are effects of some common cause;

Answer

If statement I is the cause and statement II its effect;

Answer

If statement II is the cause and statement, I is its effect;

Answer

If both the statements I and II areindependent causes;

Answer

If both the statements I and II are effects of independent causes;

Question 12

In this question, a statement is given followed by two courses of action numbered I and II. It is required to grasp the statement, analyze the problem or policy it mentions and then decide which of the courses of action logically follow / most appropriate.Statement:Floods may create havoc in the country this year too.Courses of action:I) The Government should be on the alert to evacuate flood-affected victims.II) People should not be afraid of floods.

Accepted Answer

If only I follows

Answer

If only II follows

Answer

If either I or II follows

Answer

If neither I nor II follows

Answer

If both I and II follow

Question 13

A plasmid is

Accepted Answer

Circular extrachromosomal DNA

Answer

A chromosome

Answer

A protein

Answer

A virus

Question 14

Dolly the sheep was produced by

Accepted Answer

Somatic cell nuclear transfer

Answer

Natural breeding

Answer

In vitro fertilization

Answer

Gene therapy

Question 15

Pick up the correct sequence:

Accepted Answer

Mutation ⎯→ Deficient ADA ⎯→ Immature T and B cells ⎯→ SCIDS

Answer

SCIDS ⎯→ Deficient ADA ⎯→ Immature T and B cells ⎯→ Mutation

Answer

Mutation ⎯→ Deficient ADA ⎯→ SCIDS ⎯→ Immature T and B cells

Answer

Mutation ⎯→ Immature B and T cells ⎯→ Deficient ADA ⎯→ SCIDS

Question 16

What is the commercial method of producing millions of seedlings in limited time?

Accepted Answer

Cutting

Answer

Parthenogenesis

Answer

Parthenocarpy

Answer

Grafting

Question 17

Cystic fibrosis patients lack a gene that codes for a transmembrane carrier of:

Accepted Answer

Cl- ions

Answer

Na+ ions

Answer

K+ ions

Answer

Ca2+ ions

Question 18

In the DNA finger printing process, the use of _ produces a distinctive pattern on autoradiography or X-ray film.

Accepted Answer

Probes for genetic markers

Answer

Restriction enzyme

Answer

DNA Ligase

Answer

Macrosatellites

Question 19

DNA finger printing refer to:

Accepted Answer

Molecular analysis of DNA profiles to identify individuals

Answer

Techniques used to identify physical fingerprints of individuals

Answer

Use of imprinting devices to analyze DNA samples

Answer

Combination of physical fingerprint identification and DNA analysis using imprinting devices

Question 20

Genetic engineering has been successfully used to produce:

Accepted Answer

Transgenic mice for testing the safety of polio vaccine before use in humans

Answer

Transgenic models for studying new treatments for certain cardiac diseases

Answer

Transgenic cow­-Rosie which produces high fat milk for making ghee

Answer

Animals like bulls for farm work as they have extra power

Free Biotechnology MCQs with Answers