Annual rainfall in grass land i

Desert ecosystem of Mianwali is

Endoskeleton is secreted by:

Four events in the transmission of nerve impulses across synapses are:

I. depolarisation of the presynaptic membrane

II. propagation of postsynaptic action potential

III. reabsorption of the transmitter substance

IV. release of transmitter substance into the synaptic cleft

In which sequence do these events occur?

FIRST -> LAST

NUMS Mock 4
Biology
Coordination and Control
D) IV, III, I and II

Which one is not a day neutral plant?

The genotype of a normal male in humans is ______ chromosomes.

NTS 2012
Biology
Chromosomes and DNA
Elimination Tool:

The genome of the virus includes the:

PMC Sample 1
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Which of the following factors affect enzyme activity?

NTS 2011
Biology
Enzymes
Elimination Tool:

Nicotine in tobacco:

NUMS 2014
Biology
Gaseous Exchange
Elimination Tool:

Two species can avoid competition and better use the environment’s resources by occupying different ____.

NUMS Mock 4
Biology
Evolution

Which of the following statements correctly describes homologous chromosomes?

NTS 2016 DUHS & JSMU
Biology
Chromosomes and DNA
Elimination Tool:

Which property of water helps to maintain the integrity of lipid-containing membranes?

PMC 2020
Biology
Cell Structure and Function
Elimination Tool:

Tobacco plants, resistant to a nematode, have been developed by the introduction of DNA that produces (in the host cells):

PMC Practice 11
Biology
Biotechnology
Elimination Tool:

Which of the following diseases is sexually transmitted?

PMC 2020
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Water acts as a universal solvent because of:

PMC 2020
Biology
Biological Molecules
Elimination Tool:

When resources gets scarce, the population growth?

PMC Practice 1
Biology
Man and His Environment
Elimination Tool:

The number and sequence of amino acids along a polypeptide chain is called _______ structure of a protein.

NUMS Mock 2
Biology
Biological Molecules

The shape of Cocci bacteria is:

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

Antibodies are

NUMS 2019 Cancelled
Biology
Biological Molecules
Elimination Tool:

Which of the following statement about plants is incorrect?

The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called :

In genetics, the term locus refers to the ______ of the gene on the chromosome.

NUMS Mock 4
Biology
Chromosomes and DNA

Egg-Laying mammals are called:

NUMS Mock 3
Biology
Reproduction

Which of the following is included in Bryophytes?

NTS 2011
Biology
Kingdom Plantae
Elimination Tool:

Which one of the following pairs represents an analogous feature?

NUMS 2018
Biology
Evolution
Elimination Tool:

Thick, waxy & leathery cuticle around leaves is present in

Evolutionary relationships amongst species are reflected in their:

NUMS 2016
Biology
Evolution
Elimination Tool:

What is the effect of enzyme DNA ligase?

PMC 2020
Biology
Chromosomes and DNA
Elimination Tool:

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

PMC 2020
Biology
Enzymes
Elimination Tool:

Bacterial pilli help in:

NTS 2011
Biology
Kingdom Prokaryote
Elimination Tool:

Which of the following nutrients is incorrectly paired with its function in a plant?

NTS 2016 SMBBMC
Biology
Nutrition
Elimination Tool:

In an ecosystem mycorrhizae are an example of:

UHS 2013
Biology
Kingdom Fungi
Elimination Tool:

Type of lichen which tightly attaches to rocks is

In plants growth is of

Enzyme used by the Bacteria to cut the DNA of the invading Virus for its protection is:

UHS 2018
Biology
Biotechnology
Elimination Tool:

Which organ(s) in the male reproductive system produce gametes?

NUMS Mock 4
Biology
Reproduction

Which one of the following coelenterate is also called the Portuguese man of war?

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

Opposable thumbs are characteristic features of

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

This enzyme is used to cut DNA molecule in rDNA technology

PMC Sample 2
Biology
Biotechnology
Elimination Tool:

The causes of Cyanosis include:

NTS 2010
Biology
Transport
Elimination Tool:

Inhibitors which block the enzyme by forming weak bond are called

Vegetative roots and shoots grow by

Which of the following statements is incorrect?

PMC Practice 1
Biology
Enzymes
Elimination Tool:

The gene which controls ABO group has how many alleles in an individual

Process ensuring the survival of species over long periods of time, even though individual members of the species die.

UHS 2018
Biology
Man and His Environment
Elimination Tool:

Which of the following features differentiate angiosperms from gymnosperms?

UHS 2010
Biology
Kingdom Plantae
Elimination Tool:

Direction of reflex action is from:

NUMS 2019 Reconduct
Biology
Coordination and Control
Elimination Tool:

A bacteriophage consists solely of:

NTS 2011
Biology
Bio-diversity | Variety of Life
Elimination Tool:

NAD is an example of:

PMC 2020
Biology
Biological Molecules
Elimination Tool:

•  A Vestigial
•  B. Analogous structures
•  C. Homologous structures
•  D. None of these

These protists are mostly unicellular (a few are colonial) organisms with spherical or elongated bodies with a single central nucleus. They possess from one to many long, whip-like flagella that enable them to move. Flagellates move rapidly, pulling themselves forward by lashing flexible flagella that are usually located at the anterior end. Examples include trypanosome, euglena, etc.

The above give lines indicate which of the following group of protozoa:

NUMS 2017
Biology
Kingdom Protista
Elimination Tool:

The size of smallest virus is:

Red-green color-blindness is an X-linked recessive disorder. Jacob’s paternal grandfather and father are both color-blind, but his mother has two normal alleles. What is the probability that Jacob is red-green color-blind?

NUMS Mock 2
Biology
Variation and Genetics

Lateral meristems are present in

Which of the following is monohybrid cross

Reversible inhibitors form WEAK linkages with which of the following?

PMC Sample 3
Biology
Enzymes
Elimination Tool:

Gaseous exchange in plants takes place through the:

NUMS 2020
Biology
Gaseous Exchange
Elimination Tool:

J. Seiler in 1914 discovered which type of sex determination in moths?

NUMS 2015
Biology
Variation and Genetics
Elimination Tool:

Its membranes are the sites where sunlight energy is trapped and where glucose is formed.

Which organelle is this?

NUMS 2014
Biology
Bioenergetics
Elimination Tool:

Genotype of blood group ‘AB’ in human is ______.

NUMS 2015
Biology
Variation and Genetics
Elimination Tool:

Which one is not a nitrogen waste?

NUMS 2018
Biology
Homeostasis
Elimination Tool:

Steroids consist of _____ 6 membered carbon rings and one 5 membered carbon ring.

NUMS Mock 4
Biology
Biological Molecules

Which of the following is correct in humans?

NUMS 2015
Biology
Reproduction
Elimination Tool:

Symptoms of malaria occur specifically due to the formation of:

NUMS 2015
Biology
Kingdom Protista
Elimination Tool:

There are 3 stages of HIV infection, which sequence is correct

PMC Sample 1
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Dietary fiber passes through to several structures after leaving the stomach. In which order does the dietary fiber pass through the structures?

NTS 2015 DUHS and JSMU
Biology
Nutrition
Elimination Tool:

Analogous organs show

Which of the following scientists contributed a lot to “modern synthetic theory of organic evolution:

NUMS 2014
Biology
Evolution
Elimination Tool:

The following observations refer to evolution:

Inherited variations which are favored in a particular environment are passed on
There is a struggle for existence
Across time, inherited variations may accumulate causing gradual changes in the organism
Although populations tend to overproduce, they remain more or less constant in numbers from generation to generation
In what sequence should the statement be placed to support the Darwin theory of evolution?

NTS 2015 DUHS and JSMU
Biology
Evolution
Elimination Tool:

In human females, oocytes are held in the second metaphase until ________.

NUMS 2019 Reconduct
Biology
Reproduction
Elimination Tool:

Treatment of hereditary disorders by gene manipulations is called:

NUMS 2016
Biology
Biotechnology
Elimination Tool:

Which of these in an aqueous solution of equal concentration has the lowest pH?

NUMS Mock 4
Chemistry
Carboxylic Acids and its Derivatives

The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by

Which one of the following is different from all the rest regarding the number of cells inits body?

An example of passive acquired immunity is?

NTS 2015 DUHS and JSMU
Biology
Transport
Elimination Tool:

Which of the following X – linked recessive trait that is more common in human males than in human females?

NUMS 2019 Cancelled
Biology
Variation and Genetics
Elimination Tool:

Which of the following is a vestigial organ?

PMC Sample 2
Biology
Evolution
Elimination Tool:

The drfinite shape to ciliates is given by

Which of the following structure is not present in all the bacteria?

The 1st human hormone produced by recombinant DNA technology was:

NUMS 2016
Biology
Coordination and Control
Elimination Tool:

Which of the following will not undergo aldol condensation?

NUMS Mock 2
Chemistry
Aldehydes and Ketones

Freshwater protozoans pump out excess water by a special structure called:

NUMS 2017
Biology
Kingdom Protista
Elimination Tool:

Restriction endonucleases

PMC Sample 2
Biology
Enzymes
Elimination Tool:

When phenotype of a heterozygote is in between the phenotypes of both the homozygous parents, it is called:

NUMS 2016
Biology
Variation and Genetics
Elimination Tool:

In polluted lake which organisms dominate the community

Which of the following characters of pea plant is dominant?

The organs which are similar in function but differ in structure are called:

PMC 2020
Biology
Evolution
Elimination Tool:

Secondary cell wall of sclerenchyma cells is impregnated with

Flame cells are commonly found in:

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

Study of relationship of organisms to their environment is

Which of the following sets of bones does not included in the axial skeleton?

NUMS 2019 Cancelled
Biology
Support and Movement
Elimination Tool:

Chief material present in the cell wall of plants, fungal, and prokaryotic cells is:

NUMS 2020
Biology
Cell Structure and Function
Elimination Tool: