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

NUMS 2017
Biology
Biological Molecules
Elimination Tool:

Malpighian tubules are involved in excretion in:

NTS 2011
Biology
Homeostasis
Elimination Tool:

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

NTS 2018
Biology
Cell Structure and Function
Elimination Tool:

The sequence of nucleotides that determines the amino acid sequence of a protein is

Speed of growth is

Identify the wrong statements.

(a) The substrate binds to active site of enzyme and not fitting into active site

(b) The binding of substrate induces the enzyme to alter its shape

(c) Chemical bonds of substrate break down not to form new enzyme-product complex

(d) The enzyme releases the products of the reaction and runs through catalytic cycle once again

NUMS 2019 Reconduct
Biology
Enzymes
Elimination Tool:

Chemical nature of primers used in the PCR process is _______.

UHS 2018
Biology
Biotechnology
Elimination Tool:

Icosahedral viruses have how many faces?

NUMS Mock 4
Biology
Variety of Life

One of the most important cause of desertification is

Etioplasts found in plants are actually one of the types of:

NUMS 2015
Biology
Cell Structure and Function
Elimination Tool:

Meiosis occurs at the time of

In which stage of meiotic division centromere divides?

NUMS 2017
Biology
Cell Cycle
Elimination Tool:

Developing seeds are rich source of

Which of the following is NOT true for meiosis?

NUMS 2019 Reconduct
Biology
Cell Cycle
Elimination Tool:

The massive accumulation of blood with is a tissue is called as:

NTS 2011
Biology
Transport
Elimination Tool:

Each kinetochore gets ________ fibers in mitosis

Synaptonemal complex helps in:

NUMS 2014
Biology
Cell Cycle
Elimination Tool:

Bac

All populations within an ecosystem interconnected to one another are known as

Which type of chlorophyll is found in all types of algae?

NUMS 2015
Biology
Kingdom Protista
Elimination Tool:

The release of droplets of water from hydathodes is called:

PMC 2021 Tested
Biology
Kingdom Plantae
Elimination Tool:

Vaccine Was discovered by :

The wings of the birds and forelegs of a horse are ______ structures.

NUMS Mock 3
Biology
Evolution

_______ is the stage of mitosis characterized by the physical separation of ________ chromatids.

NTS 2019
Biology
Cell Cycle
Elimination Tool:

This enzyme is used to cut DNA molecule in rDNA technology

PMC Sample 2
Biology
Biotechnology
Elimination Tool:

Which disorder among the following CANNOT be detected by amniocentesis?..

NTS 2019
Biology
Reproduction
Elimination Tool:

During breathing air from Pharynx enters to:

UHS 2018
Biology
Gaseous Exchange
Elimination Tool:

Virus is a _____ entity among living and non-living.

PMC Sample 2
Biology
Bio-diversity | Variety of Life
Elimination Tool:

The function of respiratory passage, Cilia is to keep the airways clear of:

NTS 2019
Biology
Gaseous Exchange
Elimination Tool:

Transgenic plants are produced when foreign genes are introduced into

The individual with harelip shows which of the following conditions?

NUMS 2014
Biology
Growth and Development
Elimination Tool:

Deficient production of hormones by adrenal glands results in: .

NTS 2011
Biology
Coordination and Control
Elimination Tool:

Lysosomes are also called:

NTS 2012
Biology
Cell Structure and Function
Elimination Tool:

Chlorosis, i.e., yellowish hue on the leaves results from

What is critical in photoperiodism?

Four plants are present in different environmental conditions. Plant A is present in a warm climate with continuous rainfall, plant B is present in a cool forest, plant C is present in a warm climate with little breeze, while plant D is present in a warm climate with high wind speed. Which one of the above plants will have the highest rate of transpiration?

UHS 2019
Biology
Gaseous Exchange
Elimination Tool:

The following observations refer to evolution:

I. Inherited variations which are ‘favoured’ in particular environments are passed on.

II. There is a struggle for existence.

III. In time, ‘favoured’ inherited variations may accumulate causing gradual changes in the organism.

IV. Although populations tend to overproduce, they remain more or less constant in numbers from generation to generation.

In what sequence should the statements be placed to support Darwin’s theory of evolution?

NTS 2014
Biology
Evolution
Elimination Tool:

Consider the following statements about biological communities.

I. Their members share a common gene pool

II. The community remains stable even though some physical aspect of the environment may undergo a change

III. It consists of all the populations living in a particular area.

IV. A community interacts with a non-living environment and both function together to form an ecosystem

Which two of the above statements are true?

NTS 2014
Biology
Evolution
Elimination Tool:

Carbon dioxide joins the photosynthetic pathway at:

NUMS Mock 1
Biology
Bioenergetics

Which of the following statements correctly describes homologous chromosomes?

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

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

PMC 2020
Biology
Kingdom Prokaryote
Elimination Tool:

Which of the following occurs in the body in response to the secretion of Glucagon?

NUMS 2020
Biology
Homeostasis
Elimination Tool:

Which statement correctly describes the transcription of DNA?

PMC 2020
Biology
Chromosomes and DNA
Elimination Tool:

Egg-Laying mammals are called:

NUMS Mock 3
Biology
Reproduction

Secondary succession starts from A.

A cofactor made of inorganic ion which is detachable is called

Nitrogen-fixing bacteria in root nodules fix nitrogen in soil air into:

NUMS Mock 1
Biology
Nutrition

Below the point at which the cotyledons are attached, the embryo axis is called _______.

NUMS Mock 2
Biology
Kingdom Plantae

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

NTS 2016 SMBBMC
Biology
Evolution
Elimination Tool:

The smaller (40S) of ribosome combines with larger subunit (60S) in the presence of Mg2+ ion to form _____ particle.

NUMS Mock 3
Biology
Cell Structure and Function

Wind blows from area of

Of the following which one is not an energy releasing process?

The egg-laying birds are called:

NUMS 2016
Biology
Reproduction
Elimination Tool:

The disease that arises due to increasing age is:

NTS 2018
Biology
Growth and Development
Elimination Tool:

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

Numerous opportunistic diseases might attack a person suffering from which of the following diseases?

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

Microtubule subunits (for spindle fibers) are synthesized in _______ phase.

UHS 2019
Biology
Cell Cycle
Elimination Tool:

On land, frogs are:

NUMS 2014
Biology
Coordination and Control
Elimination Tool:

Which statement is correct?

Highest blood pressure is found in:

NUMS 2015
Biology
Transport
Elimination Tool:

Homology means

PMC Sample 3
Biology
Evolution
Elimination Tool:

Organs which produce voice in birds is:

NUMS 2016
Biology
Kingdom Animalia
Elimination Tool:

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

UHS 2018
Biology
Man and His Environment
Elimination Tool:

If the seed is heterozygous yellow (Yy). In a test cross, what will be the probability of appearance of seed colors?

NUMS 2019 Reconduct
Biology
Variation and Genetics
Elimination Tool:

The first simplest oxygen producing organism:

NUMS 2016
Biology
Kingdom Prokaryote
Elimination Tool:

The table shows the characteristics of the blood in one blood vessel in the body.

Which blood vessel contains blood with these characteristics?

NUMS Mock 1
Biology
Transport

Carbon dioxide joins the photosynthetic pathway at:

NTS 2018
Biology
Bioenergetics
Elimination Tool:

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

NTS 2017
Biology
Biotechnology
Elimination Tool:

How are flat worms not similar to round worms?

PMC Practice 4
Biology
Kingdom Protista
Elimination Tool:

When the concentration of the external medium is equal to the concentration of the internal medium of a cell, the situation is called:

NUMS 2017
Biology
Biological Molecules
Elimination Tool:

_________ is sometimes given by injection as an emergency treatment in cardiac arrest:

NUMS Mock 3
Biology
Coordination and Control

In which of the following growth phases, the number of bacteria increases the most rapidly?

NTS 2018
Biology
Kingdom Protista
Elimination Tool:

Which of the following is not a sterilization method for the control of bacteria?

PMC Practice 4
Biology
Kingdom Prokaryote
Elimination Tool:

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

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

The main cause of creation of tension between water molecules is ______ which helps to make water chains pulled up xylem sap.

NUMS 2019 Reconduct
Biology
Transport
Elimination Tool:

Optimum pH for action of pepsin and salivary amylase is

NTS 2016 DUHS & JSMU
Biology
Nutrition
Elimination Tool:

Cloning is the production of genetically identical copies of organisms/cells by:

NUMS 2015
Biology
Biotechnology
Elimination Tool:

A bacterium with tuft of flagella at both poles is called

Which of the following endoparasites of humans does show viviparity?

NTS 2018
Biology
Kingdom Fungi
Elimination Tool:

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

PMC Practice 2
Biology
Kingdom Prokaryote
Elimination Tool:

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 3
Biology
Coordination and Control

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:

If enzyme concentration is low than substrate pH and temperature values are equal to requirement then which of the following will increase rate of reaction.

A structure formed by groups of similar cells organized into loose sheetsor bundles performing similar functions is called as:

Gibberellins may be substituted for _____ light, therefore promote flowering in long day plants.

Archaebacteria can survive at

A part of the digestive system that is not in contact with food is the:

NTS 2017
Biology
Nutrition
Elimination Tool:

Optimal temperature of enzymes present in human body is

In nitrogen fixation, nitrogen is converted to:

NUMS 2019 Cancelled
Biology
Man and His Environment
Elimination Tool:

Vegetative roots and shoots grow by