Lamarck is best known for his theory of:

NUMS 2016
Biology
Evolution
Elimination Tool:

The cofactor usually acts as “bridge” between:

NUMS 2018
Biology
Enzymes
Elimination Tool:

In gametogenesis, which resultant product is non-functional?

NTS 2019
Biology
Cell Cycle
Elimination Tool:

Allium cepa is the scientific name of :

Crossing over takes place during _____ of meiosis.

UHS 2018
Biology
Cell Cycle
Elimination Tool:

Wood forests form the

Referring to sexual reproduction, humans are:

NTS 2018
Biology
Reproduction
Elimination Tool:

Which of the following is a copper containing protein in electron transport chain?

PMC 2020
Biology
Bioenergetics
Elimination Tool:

The most successful land adapting plants are:

NUMS 2020
Biology
Kingdom Plantae
Elimination Tool:

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

NTS 2012
Biology
Support and Movement
Elimination Tool:

Photosynthesis is absent in which of the following:

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

Genetic information in the DNA is encoded as:

NUMS Mock 1
Biology
Chromosomes and DNA

Molluscs have an exoskeleton made up of:

NTS 2016 DUHS & JSMU
Biology
Support and Movement
Elimination Tool:

Oyster mushroom is an example of predator fungi which attack on

Hemoglobin can absorb maximum oxygen at sea level, which is _____ ml/100 ml of blood.

NUMS 2019 Cancelled
Biology
Gaseous Exchange
Elimination Tool:

Which characteristic led to the evolution of seed?

NUMS 2020
Biology
Kingdom Plantae
Elimination Tool:

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

NUMS Mock 2
Biology
Evolution

The passageways of the respiratory system mucous secreting cells called:

NTS 2019
Biology
Gaseous Exchange
Elimination Tool:

Rod-shaped bacteria are known as:

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

Secondary growth is actually

The system involved in preparing our body in condition of stress and emergency:

NUMS Mock 2
Biology
Coordination and Control

Lungs are spongy due to the presence of million of

Which of the following endoparasites of humans does show viviparity?

NTS 2018
Biology
Kingdom Fungi
Elimination Tool:

The following are all features of eukaryotic cells:

I. chloroplast

II. peroxisome

III. lysosome

IV. mitochondrion

v. nucleus

Which of these have a double membrane?

NTS 2014
Biology
Cell Structure and Function
Elimination Tool:

Which statement is incorrect?

The prolactin hormone, responsible for the activation of mammary glands to start producing milk, is a hormone of the:

NUMS Mock 3
Biology
Coordination and Control

Ammonia is chief excretory product in:

NUMS 2014
Biology
Homeostasis
Elimination Tool:

How many ml of blood is pumped by each contraction of the heart?

NUMS 2016
Biology
Transport
Elimination Tool:

During the G2 phase:

UHS 2019
Biology
Cell Cycle
Elimination Tool:

What would be the number of nucleotides for a protein molecule of about 142 amino acids?

NUMS 2020
Biology
Chromosomes and DNA
Elimination Tool:

The cell membrane surrounds the:

NUMS 2016
Biology
Cell Structure and Function
Elimination Tool:

In animals coordination is achieved by means of

On Galapagos island, among the birds, ____ caught much attention of Darwin in formulating his work, related to adaptations.

NUMS 2019 Reconduct
Biology
Evolution
Elimination Tool:

What is not true about the induced fit model:

NUMS 2018
Biology
Enzymes
Elimination Tool:

B

The phase of mitosis in which sister chromatids move towards opposite poles:

UHS 2019
Biology
Cell Cycle
Elimination Tool:

Roots of a plant show

The region where the impulse moves from one neuron to another is called ______.

NUMS Mock 4
Biology
Coordination and Control

Pinacocytes forms ______.

NUMS 2018
Biology
Kingdom Animalia
Elimination Tool:

In the Hardy – Weinberg principle, p2 + 2pq + q2 = 1 . q2 represents the frequency of the:

NTS 2010
Biology
Evolution
Elimination Tool:

When were bacteriophages discovered by Twort?

PMC Practice 5
Biology
Kingdom Prokaryote
Elimination Tool:

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
NUMS Mock 3
Biology
Cell Structure and Function

Duration of menstrual cycle is how many days on average?

PMC Sample 1
Biology
Reproduction
Elimination Tool:

Both radial and bilateral symmetry is found in the phylum

Despite the structural diversities, ____ are characterized by having a soft body protected by a calcareous shell developing from the mantle layer.

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

Photosynthesis is process in which ________ compounds of carbon (CO2) and hydrogen (H2O) are reduced to carbohydrate like (glucose) using light energy.

Which of the following has oxygenated blood?

NUMS 2014
Biology
Transport
Elimination Tool:

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:

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

NTS 2012
Biology
Biological Molecules
Elimination Tool:

Deficient production of hormones by adrenal glands results in: .

NTS 2011
Biology
Coordination and Control
Elimination Tool:

Transgenic organisms:

PMC 2020
Biology
Biotechnology
Elimination Tool:

At the induction of action potential opening of Na+ gate with influx of Na+ is a _________ processes:

This protist has isomorphic alternation of generation:

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called

Most critical phase of mitosis is

Gaseous exchange in plants takes place through the:

NUMS 2020
Biology
Gaseous Exchange
Elimination Tool:

DNA or RNA of viruses is enclosed in ______ coat:

Which of the following is not related to apoptosis?

NUMS Mock 1
Biology
Growth and Development

A student of chemical engineering mistakenly engulfed the toxic compound “A” which was a potent inhibitor of a certain enzyme. He was immediately brought to a hospital where the doctor injected, intravenously, substrate “B” to minimize the toxic effect of Compound A. His life was saved from serious damage. The treatment method shows that compound A was a ______ inhibitor.

UHS 2019
Biology
Enzymes
Elimination Tool:

Which of the following plays the major role in providing support to young herbaceous parts of the plant:

According to the Hardy-Weinberg theorem, what will be the frequency of heterozygote when ‘p’ is 0.2?

NUMS 2019 Reconduct
Biology
Evolution
Elimination Tool:

The _____ may be a cell, neuron ending or an organ that receives the stimulus.

NUMS 2019 Reconduct
Biology
Coordination and Control
Elimination Tool:

Cell membrane under resting conditions is impermeable to all the ions except

From each pair of centrioles ________ sets of microtubules originate

Bacteriophages, or phages are also known as:

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

Which of the following phyla of Kingdom Animalia do humans belong to?

NTS 2018
Biology
Kingdom Animalia
Elimination Tool:

An activated enzyme consisting of polypeptide chain and a cofactor is called:

An Rh negative woman is married to an Rh positive man whose father was also Rh negative. What are the chances that their child will be affected?

NUMS Mock 4
Biology
Variation and Genetics

When resources gets scarce, the population growth?

PMC Practice 1
Biology
Man and His Environment
Elimination Tool:

The structural and functional unit of the lungs is:

PMC Practice 2
Biology
Gaseous Exchange
Elimination Tool:

The egg-laying birds are called:

NUMS 2016
Biology
Reproduction
Elimination Tool:

The function of a cell wall in prokaryotes is:

PMC Practice 1
Biology
Kingdom Prokaryote
Elimination Tool:

When was the bacteriophage phenomena rediscovered by D’Herelle?

PMC Practice 4
Biology
Kingdom Prokaryote
Elimination Tool:

A pure breeding tall plant was crossed to dwarf plant. What would be probability of “Tt” genotype in F2

The virus can only survive and reproduce inside a:

NTS 2019
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Which of the following statements is a correct distinction between autotrophs and heterotrophs?

PMC Practice 7
Biology
Kingdom Plantae
Elimination Tool:

Sporophyte is

The productivity of aquatic ecosystem is determined by:

NUMS 2016
Biology
Man and His Environment
Elimination Tool:

Gametes in animals are produced by which of the following?

PMC Practice 2
Biology
Cell Cycle
Elimination Tool:

Which of the following basic structural level of proteins is indicated by an association of two alpha and two beta chains in the haemoglobin molecule?

NUMS Mock 4
Biology
Biological Molecules

Puccinia commonly destroys

Biological molecules (proteins) which catalyze a biochemical reaction and remain unchanged after completion of reaction are called

The inhibitor which closely resembles the substrate in its molecular structure and inhibits the enzyme activity by binding to the active site of the enzyme is called:

NUMS Mock 4
Biology
Enzymes

The plants having thick cuticle, needle like reduced leaves and sunken stomata are termed as:

NUMS 2019 Reconduct
Biology
Support and Movement
Elimination Tool:

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:

Antibodies are

NUMS 2019 Cancelled
Biology
Biological Molecules
Elimination Tool:

Phenotype is:

PMC 2020
Biology
Chromosomes and DNA
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 4
Biology
Coordination and Control
D) IV, III, I and II

Which was the first virus to be successfully crystalized?

NUMS Mock 1
Biology
Bio-diversity | Variety of Life

Which of the following is not related to apoptosis?

NUMS 2015
Biology
Growth and Development
Elimination Tool:

Antibodies can be digested by using which of the following types of enzymes?

PMC Sample 3
Biology
Enzymes
Elimination Tool:

An anticodon is the sequence of the nitrogenous bases on the:

NTS 2014
Biology
Chromosomes and DNA
Elimination Tool:

Gram negative bacteria are stained pink by the use of:

NUMS 2016
Biology
Kingdom Prokaryote
Elimination Tool:

Interphase is a phase of the cell cycle defined only by the absence of _______.

NTS 2019
Biology
Cell Cycle
Elimination Tool:

“Law of independent assortment” states:

PMC 2020
Biology
Chromosomes and DNA
Elimination Tool:

If more substrate to already occurring enzymatic reaction is added and there is no effect on the rate of the reaction what is the form given to this situation:

Lime stone deposits are formed from