Biology Practice Test 5


Entry test contains most of the Biology MCQs. FSC Pre-Medical Part 2 Biology book MCQs. HSSC bio questions MCQs. Solved Chapterwise Biology MCQs for first-year 12 class MCQs and 11 class MCQs. Second-year and first-year Biology textbooks chapter-wise MCQs with the answer are provided here. The Biology portion is helpful in MDCAT , NTS NAT , and NUST . PakLearningSpot PLS MCQs Bank website for FREE Entry test preparations




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Biology Practice Test 5

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Category: Biology

Q.22 Which of the following is false about conjugation?

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Category: Biology Ch 7 Class 12

Most critical phase of mitosis is

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Category: Biology Ch 2 Class 12

Which of the following animal has a hydrostatic skeleton:

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Category: Biology

Q.48  Which of the following is incorrectly matched?

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Category: Biology Ch 5 Class 12

Typical symptoms like enlarged breasts and small testis in male are attributed to:

UHS 2015
Biology
Growth and Development
Elimination Tool:

6 / 100

Category: Biology Ch 12 Class 11

In planaria, numerous small branches which end blindly are called as 

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Category: Biology Ch 2 Class 11

Which of the following processes is the reverse of condensation?

NTS 2016 SMBBMC
Biology
Biological Molecules
Elimination Tool:

8 / 100

Category: Biology Ch 7 Class 11

In which of the following pigments major energy reserves and cell wall are like plants?

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Category: Biology

Q.51 The water splitting step of photosynthesis is called?

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Category: Biology Ch 9 Class 12

A genomic library is a collection of

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Category: Biology

When were bacteriophages discovered by Twort?

NUMS Mock 2
Biology
Bio-diversity | Variety of Life
Variety of Life

12 / 100

Category: Biology Ch 7 Class 11

_______ infection is caused by a viroid:

NUMS 2020
Biology
Kingdom Protista
Elimination Tool:

13 / 100

Category: Biology

Q.28 Flame cells in Planaria constitute the:

14 / 100

Category: Biology Ch 2 Class 11

Which of the following has the ability to develop ester linkage with the OH group of Pentose sugar?

NUMS 2015
Biology
Biological Molecules
Elimination Tool:

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Category: Biology Ch 2 Class 12

Which one of the following are “myogenic” type of muscles?

PMC 2020
Biology
Support and Movement
Elimination Tool:

16 / 100

Category: Biology Ch 7 Class 12

Crossing over is an exchange of genes between _______ resulting in a mixture of parental characteristics in offspring.

NTS 2019
Biology
Cell Cycle
Elimination Tool:

17 / 100

Category: Biology Ch 6 Class 12

The chromosomes with equal arms are called:

NTS 2018
Biology
Chromosomes and DNA
Elimination Tool:

18 / 100

Category: Biology Ch 4 Class 12

In parthenocarpy which levels are high in ovaries

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Category: Biology Ch 13 Class 12

Which of the following describes an ecological niche?

NTS 2015 SMBBMC
Biology
Man and His Environment
Elimination Tool:

20 / 100

Category: Biology Ch 12 Class 11

In human gut, chylomicrons are formed by the combination of:

NUMS 2020
Biology
Nutrition
Elimination Tool:

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Category: Biology Ch 13 Class 11

Carbon dioxide is carried in the blood, mainly as:

NUMS 2015
Biology
Gaseous Exchange
Elimination Tool:

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Category: Biology Ch 2 Class 11

Each β – chain of hemoglobin molecules contains ____ amino acids.

NUMS 2019 Reconduct
Biology
Biological Molecules
Elimination Tool:

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Category: Biology

Q.12 The least stable RNA present in the cell is:

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Category: Biology Ch 9 Class 12

The genetically Engineered vaccine is not available for which of the following?

PMC Practice 8
Biology
Biotechnology
Elimination Tool:

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Category: Biology Ch 2 Class 11

Among the most abundant biomolecules, _____ is the most abundant one on earth.

NUMS 2016
Chemistry
Biological Molecules
Elimination Tool:

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Category: Biology Ch 4 Class 11

Which of the following is NOT the function of cell membranes?

NTS 2018
Biology
Cell Structure and Function
Elimination Tool:

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Category: Biology Ch 11 Class 11

In the Calvin cycle, the reducing power from NADPH is used during:

NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:

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Category: Biology Ch 7 Class 12

DNA is synthesized and chromosome number is doubled in

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Category: Biology Ch 10 Class 11

Of the following which one is not the characteristic of Kingdom Animalia.

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Category: Biology Ch 13 Class 12

Overgrazing results in:

NUMS 2019 Cancelled
Biology
Man and His Environment
Elimination Tool:

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Category: Biology

Q.28 The enzyme which plays important role in HIV pathogenesis

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Category: Biology Ch 6 Class 12

In DNA A.

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Category: Biology Ch 12 Class 11

Scurvy is caused by deficiency of vitamin ______.

NTS 2016 DUHS & JSMU
Biology
Nutrition
Elimination Tool:

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Category: Biology

Q.24  Pepsinogen is produce by:

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Category: Biology

Q.67 Interaction between genes occupying different loci is:

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Category: Biology Ch 3 Class 12

Neurotransmitters trigger action potential in the postsynaptic neuron by changing the permeability of certain _________.

NUMS 2019 Reconduct
Biology
Coordination and Control
Elimination Tool:

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Category: Biology Ch 6 Class 12

A typical human chromosome contains _________ nucleotides in its DNA

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Category: Biology Ch 6 Class 11

The first bacterium isolated was

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Category: Biology Ch 13 Class 12

An area previously supporting life is made barren, the subsequent recolonization is called ______.

UHS 2018
Biology
Man and His Environment
Elimination Tool:

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Category: Biology Ch 10 Class 11

In some cases the blastomere can produce complete embryo the cleavage will be

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Category: Biology Ch 2 Class 12

When the muscle is required to contract, calcium ion binds with ______ molecule and causes them to move slightly.

NUMS 2019 Cancelled
Biology
Support and Movement
Elimination Tool:

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Category: Biology Ch 2 Class 11

Movement of ions and large molecules with the help of protein molecules in and out of the cell is called _________.

NTS 2016 DUHS & JSMU
Biology
Biological Molecules
Elimination Tool:

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Category: Biology Ch 8 Class 12

The position of a gene on chromosome is called

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Category: Biology Ch 7 Class 12

Microtubules are composed of

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Category: Biology

Q.13 The frequency of allele if it is evolutionary successful is?

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Category: Biology Ch 13 Class 11

Which one of the following is a genetic disorder in which abnormally thick mucus is produced in the lungs and other parts of the body?

NUMS 2020
Biology
Gaseous Exchange
Elimination Tool:

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Category: Biology Ch 10 Class 12

Neo-Darwinism has integrated discoveries and ideas from

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Category: Biology Ch 6 Class 11

Which of the following types of bacterial reproduction is most similar to mitosis?

PMC Practice 2
Biology
Kingdom Prokaryote
Elimination Tool:

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Category: Biology Ch 4 Class 11

Which one of the following organelles is required for aerobic respiration?

NTS 2018
Biology
Cell Structure and Function
Elimination Tool:

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Category: Biology Ch 8 Class 12

The disease, which is caused by defect in a single gene or pair of genes is referred to as:

NTS 2016 SMBBMC
Biology
Variation and Genetics
Elimination Tool:

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Category: Biology Ch 13 Class 11

Smaller the animals:

NUMS 2014
Biology
Gaseous Exchange
Elimination Tool:

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Category: Biology Ch 12 Class 11

Puccinia commonly destroys

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Category: Biology Ch 13 Class 11

Functional units of lungs are called

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Category: Biology

This theory says that “mitochondria and chloroplasts are, in effect, ancient bacteria which now live inside the larger cells”:

NUMS Mock 2
Biology
Evolution

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Category: Biology

Q.56 During cyclic photophosphorylation, electrons are diverted back to:

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Category: Biology Ch 13 Class 11

The voice box leads to the trachea which is also called

PMC Practice 1
Biology
Gaseous Exchange
Elimination Tool:

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Category: Biology Ch 9 Class 12

Which statement is not true about PCR?

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Category: Biology Ch 8 Class 11

Fungi can tolerate pH from

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Category: Biology

Enzymes work by lowering the ______ of the reactions they catalyse:

NUMS Mock 4
Biology
Enzymes

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Category: Biology Ch 7 Class 11

Most of the photosynthesis on earth is carried by

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Category: Biology Ch 6 Class 12

Genetic code is a ______ code and out of 64 codons, _____ are nonsense codons.

NUMS 2019 Reconduct
Biology
Chromosomes and DNA
Elimination Tool:

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Category: Biology Ch 3 Class 11

Enzymes work by lowering the ______ of the reactions they catalyse:

PMC 2020
Biology
Enzymes
Elimination Tool:

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Category: Biology Ch 9 Class 11

Which one of the following types of cell are found in secondary xylem of angiosperms?

NTS 2015 DUHS and JSMU
Biology
Kingdom Plantae
Elimination Tool:

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Category: Biology Ch 10 Class 11

Archaeopteryx is a transitional stage between the members of which one of the following pairs?

NTS 2013
Biology
Kingdom Animalia
Elimination Tool:

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Category: Biology Ch 12 Class 11

When the liver fat content of our body increases, the condition leads to:

NUMS 2014
Biology
Nutrition
Elimination Tool:

66 / 100

Category: Biology Ch 7 Class 12

Which of the following is NOT true for meiosis?

NUMS 2019 Reconduct
Biology
Cell Cycle
Elimination Tool:

67 / 100

Category: Biology Ch 13 Class 12

In air nitrogen is

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Category: Biology Ch 1 Class 12

Which of the following structure in plant’s body is called excretophores?

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Category: Biology

Q.53  In case of snake bite, the most appropriate strategy to provide immunity would be:

70 / 100

Category: Biology Ch 9 Class 11

Why do Bryophytes and ferns both require water for fertilization?

NUMS 2015
Biology
Kingdom Plantae
Elimination Tool:

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Category: Biology

The type of plastids found in roots of plants are _____.

NUMS Mock 4
Biology
Cell Structure and Function

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Category: Biology

Haploid and monoploid numbers of chromosomes of hexaploid wheat are:

NUMS Mock 4
Biology
Chromosomes and DNA

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Category: Biology Ch 14 Class 11

The causes of Cyanosis include:

NTS 2010
Biology
Transport
Elimination Tool:

74 / 100

Category: Biology Ch 13 Class 11

There are ______ stomata per square cm of leaf surface in Tobacco plants.

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Category: Biology Ch 2 Class 11

When the hydroxyl group, -OH, of the carboxyl group, -COOH, of an amino acid is linked with the hydrogen of the amino group, -NH2, of another amino acid, ______ is released and a peptide bond is formed.

NUMS 2019 Reconduct
Biology
Biological Molecules
Elimination Tool:

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Category: Biology Ch 6 Class 12

During DNA replication ______ attaches the fragment to the lagging strand.

NUMS 2019 Reconduct
Biology
Chromosomes and DNA
Elimination Tool:

77 / 100

Category: Biology Ch 6 Class 12

Genetic information in the DNA is encoded as:

NTS 2018
Biology
Chromosomes and DNA
Elimination Tool:

78 / 100

Category: Biology Ch 9 Class 12

A single gene can be amplified by using:

NUMS 2019 Reconduct
Biology
Biotechnology
Elimination Tool:

79 / 100

Category: Biology Ch 10 Class 11

Which one of the following is a fish?

NTS 2012
Biology
Kingdom Animalia
Elimination Tool:

80 / 100

Category: Biology

Erythroblastosis foetalis occurs when:

NUMS Mock 2
Biology
Variation and Genetics

81 / 100

Category: Biology Ch 5 Class 12

Determinate growth is

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Category: Biology

Hemoglobin carries more oxygen than plasma by:

NUMS Mock 1
Biology
Gaseous Exchange

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Category: Biology Ch 3 Class 12

The phytohormones controlling the plant movements are?

NTS 2015 SMBBMC
Biology
Coordination and Control
Elimination Tool:

84 / 100

Category: Biology

Q.66 Which of the following provides the strong evidence in support of evolution:

85 / 100

Category: Biology Ch 2 Class 12

Hinge joint occurs in:

NTS 2015 SMBBMC
Biology
Support and Movement
Elimination Tool:

86 / 100

Category: Biology

A/An ______ is an organism that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation if oxygen is absent.

NUMS Mock 4
Biology
Nutrition

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Category: Biology

What is the role of cholesterol in the cell membrane?

NUMS Mock 4
Biology
Cell Structure and Function

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Category: Biology Ch 10 Class 12

There existed two varieties of female freshwater Mollusks in which some were streamlined and some had a high bulge. Over the generations, male freshwater Mollusks learned that high bulge favors more production of offspring. So they started preferring to mate with females having high bulge as compared to streamlined. Will this affect Hardy Weinberg Equilibrium in the population?

NTS 2019
Biology
Evolution
Elimination Tool:

89 / 100

Category: Biology Ch 6 Class 11

The word Archaeobacteria (a division of bacteria) derived from Greek means

90 / 100

Category: Biology Ch 8 Class 12

In question number 2 what will be frequency of dwarf plant in F2

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Category: Biology Ch 12 Class 11

Milk drinking babies have an additional enzyme called:

NUMS 2016
Biology
Nutrition
Elimination Tool:

92 / 100

Category: Biology Ch 7 Class 12

Smooth endoplasmic reticulum is responsible for the metabolism of:

UHS 2019
Biology
Cell Cycle
Elimination Tool:

93 / 100

Category: Biology Ch 7 Class 11

The feeding stage of slime mold is a

UHS 2010
Biology
Kingdom Protista
Elimination Tool:

94 / 100

Category: Biology Ch 4 Class 12

Ovulation is induced by ______ hormone secreted by the pituitary gland.

NUMS 2019 Reconduct
Biology
Reproduction
Elimination Tool:

95 / 100

Category: Biology

Arrange the following according to the level of protein structures:

a) lysozyme, b) haemoglobin, c) insulin, d) hairs.

NUMS Mock 4
Biology
Biological Molecules

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Category: Biology

While working in a laboratory, before studying a sample under the microscope, it was immersed in a dye solution to obtain ______.

NUMS Mock 1
Biology
Biology and its Major Fields of Specialization

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Category: Biology Ch 9 Class 12

Vaccination can be done against:

NUMS 2015
Biology
Biotechnology
Elimination Tool:

98 / 100

Category: Biology

According to the theory of natural selection, organisms produce:

NUMS Mock 2
Biology
Evolution

99 / 100

Category: Biology

Q.44 To produce ATP (adenosine triphosphate) in muscles, creatine phosphate (CP) transfers__________________ to adenosine diphosphate (ADP).

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Category: Biology

Q45 Which was the first virus to be successfully crystalized?

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