Lock and Key Model for enzyme action propose by Emil Fischer suggests that:

PMC 2020
Biology
Enzymes
Elimination Tool:

Now-a-days every newborn gets regular shots of vaccine for polio. It contains _________ for polio to make a child immune against this disease.

NUMS Mock 4
Biology
Bio-diversity | Variety of Life

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

NUMS 2019 Reconduct
Biology
Chromosomes and DNA
Elimination Tool:

In human heart, the left atrium receives:

PMC 2020
Biology
Transport
Elimination Tool:

The only promoter of leaf senescence in the following plant hormones is?

PMC Sample 3
Biology
Growth and Development
Elimination Tool:

The biosphere covers about

A person got an infection, he became ill but then he survived. What do you think which of immunity he would have developed?

NUMS Mock 1
Biology
Transport

Inhibitors which block the enzyme by forming weak bond are called

Which of the following fish drink large amount of sea water and excrete concentrated urine resulting in maximum salt excretion and minimal water loss?

Epinasty is controlled by

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:

Negative feedback mechanism is the characteristic of which class?

NUMS 2020
Biology
Homeostasis
Elimination Tool:

Closely related species are grouped together into ______ .

NTS 2012
Biology
Bio-diversity | Variety of Life
Elimination Tool:

What is the strengthening material of the prokaryotic cell wall?

PMC Practice 7
Biology
Kingdom Plantae
Elimination Tool:

Select the pair of organs, that contains a large number of mitochondria:

NUMS 2020
Biology
Cell Structure and Function
Elimination Tool:

Aspergillosis is a fungal infection and occurs only in _______:

NUMS 2020
Biology
Kingdom Fungi
Elimination Tool:

The number of vertebrate in horse neck are:

NUMS 2014
Biology
Support and Movement
Elimination Tool:

Which of these cycles operate in human females?

PMC Sample 2
Biology
Reproduction
Elimination Tool:

Carolus Linnaeus was believer of

Consider the following statements regarding blood pressure:

1. It is the pressure exerted by the blood on the walls of any vessel.

2. It decreases in the arteries as the distance from the heart increases.

3. It is lower in the capillaries than in the arteries.

4. It is usually lower in women than in men.

Choose the correct statements.

NTS 2015 DUHS and JSMU
Biology
Transport
Elimination Tool:

Only one ovary is functional at a time in:

NUMS 2015
Biology
Reproduction
Elimination Tool:

Which of the following has oxygenated blood?

NUMS 2014
Biology
Transport
Elimination Tool:

Pick the correct option about Drosophila.

NUMS Mock 3
Biology
Variation and Genetics

Ureter open into the urinary bladder through:

NUMS 2018
Biology
Homeostasis
Elimination Tool:

The disease that arises due to increasing age is:

NTS 2018
Biology
Growth and Development
Elimination Tool:

An X to A ratio of ⅖ in drosophila produces:

NUMS 2020
Biology
Variation and Genetics
Elimination Tool:

Which of the following endoparasites of humans does show viviparity?

NTS 2018
Biology
Kingdom Fungi
Elimination Tool:

Parasites capable of living independently of its host at times is called as _______ parasite.

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

Coelom is a cavity lined by:

NUMS 2016
Biology
Kingdom Animalia
Elimination Tool:

Which of the following characters of pea plant is dominant?

Of the following which one is not found in series proterostomia.

Carbon atom is

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

Purple non-sulphur bacteria is an example of which of the following?

PMC Practice 2
Biology
Kingdom Prokaryote
Elimination Tool:

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

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

Gametes in animals are produced by:

PMC 2021 Tested
Biology
Cell Cycle
Elimination Tool:

Which one of the following muscles are considered as “Voluntary muscles”?

NUMS Mock 1
Biology
Support and Movement

What is the name of the structure of the leaf that attaches the leaf to the stem?

PMC Sample 2
Biology
Kingdom Plantae
Elimination Tool:

Which of the following is TRUE about the structure of a typical bacterium?

PMC 2020
Biology
Kingdom Prokaryote
Elimination Tool:

Some enzymes require the presence of a non protein molecule to behave catalytically. An enzyme devoid of this molecule is called a(n):

NTS 2013
Biology
Enzymes
Elimination Tool:

A substance which binds at the active site of the enzyme but does not result in the formation of the products is called:

Which of the following is not the type of cells of gastric gland?

NUMS 2019 Cancelled
Biology
Nutrition
Elimination Tool:

In animals coordination is achieved by means of

Antibodies are

NUMS 2019 Cancelled
Biology
Biological Molecules
Elimination Tool:

Lichen and algae form

An example of competitive inhibition of an enzyme is the inhibition of;

NUMS Mock 2
Biology
Enzymes

The glycolate produced diffuses into the membrane bounded organelles called

Which of the following processes does NOT need Pyruvic Acid as a substrate?

NUMS Mock 2
Biology
Bioenergetics

Growth process is

Which organism has wings with claws?

NUMS 2015
Biology
Kingdom Animalia
Elimination Tool:

The complete, mature and infection virus particle is known as:

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

The concentration of Na ions in the body fluids is controlled by the ____ hormone.

NTS 2012
Biology
Homeostasis
Elimination Tool:

During gel electrophoresis, the gel used is:

NUMS 2020
Biology
Biotechnology
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:

Fungi which get their food directly from dead organic matter are called?

Which of the following statement(s) is/are correct regarding a nucleus?

I.Stores wastes and other Substances

II.Contains genetic material

III.Helps in cellular transport system

IV.Control centre of the cell

NTS 2017
Biology
Cell Structure and Function
Elimination Tool:

The infection of lungs is called:

PMC Practice 1
Biology
Gaseous Exchange
Elimination Tool:

What is the risk of color blind baby boy in a family when mother is color blind but father is normal?

NUMS 2019 Cancelled
Biology
Variation and Genetics
Elimination Tool:

The cell membrane of a bacterial cell often invaginates to produce membranous structures referred to as:

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

Which of the following is true of both bacterial conjugation and meiosis?

PMC Practice 3
Biology
Kingdom Prokaryote
Elimination Tool:

The movement of plants in response to touch stimulus is called:

NTS 2012
Biology
Support and Movement
Elimination Tool:

Mosses are included in sub-division

Which one of the following is not in the group of Gymnosperm?

NTS 2012
Biology
Kingdom Plantae
Elimination Tool:

Which factor decides what type of variation should be flourished and passed on to the next generations?

NTS 2019
Biology
Evolution
Elimination Tool:

All of the following structures are proteinous in nature except:

NUMS 2014
Biology
Biological Molecules
Elimination Tool:

Platyhelminthes means:

NTS 2017
Biology
Kingdom Animalia
Elimination Tool:

Hydra reproduces asexually by:

NUMS 2014
Biology
Reproduction
Elimination Tool:

Mosses are

Select an anamniote from the following:

PMC 2020
Biology
Kingdom Animalia
Elimination Tool:

The actual remains or traces of organisms that lived in ancident geological times

Viruses are ______ smaller than bacteria

Pseudocoelem develops from

Second major form of hepatitis is:

NUMS 2015
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Type of sensations carried by nociceptors are:

DNA made by joining pieces from two or more different sources:

NUMS Mock 3
Biology
Biotechnology

Sythetic insulin from pork was formed by which technique:

Which of the following is NOT a difference that would allow one to distinguish between a prokaryotic and a eukaryotic cell?

Presence of absence of the nucleus
Presence or absence of the cell wall
Membrane bound versus no membrane bound organelles
NTS 2013
Biology
Cell Structure and Function
Elimination Tool:

Chimaeric DNA is also known as

In the Hardy – Weinberg principle,p2 + 2pq + q2= ?

NTS 2016 SMBBMC
Biology
Evolution
Elimination Tool:

Which of the following statements about the systemic effect of bacterial cells is true?

PMC Practice 3
Biology
Kingdom Prokaryote
Elimination Tool:

Vaccination can be done against:

NUMS 2015
Biology
Biotechnology
Elimination Tool:

The DNA that has been altered and which now contains length of nucleotides from two different organisms is called a:

PMC 2020
Biology
Biotechnology
Elimination Tool:

The size of Spirochete is

Who opposed the idea the cell is an empty space bounded by thick wall?

The cell membrane surrounds the:

NUMS 2016
Biology
Cell Structure and Function
Elimination Tool:

Bacterial cells take up recombinant plasmids when they are treated with:

UHS 2015
Biology
Biotechnology
Elimination Tool:

Which processes are essential in making nitrogen from dead plant material available to growing plants?

ammonification
deamination
nitrification
nitrogen fixation
NUMS Mock 2
Biology
Man and His Enviornment

The directional movement toward or away from the stimulus is called:

PMC 2020
Biology
Coordination and Control
Elimination Tool:

Diseases in living organisms which are caused by parasites are called:

NUMS 2016
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Smooth endoplasmic reticulum is responsible for the metabolism of:

UHS 2019
Biology
Cell Cycle
Elimination Tool:

Lamarck is best known for his theory of:

NUMS Mock 3
Biology
Evolution

Amniocentesis is performed between the:

NTS 2011
Biology
Reproduction
Elimination Tool: