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

NUMS Mock 4
Biology
Biological Molecules

How many species of fungi are known till now

Wild life refers to

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

The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by :

Most enzymes have an optimum temperature of around:

PMC 2020
Biology
Enzymes
Elimination Tool:

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:

All of the followings are the effects of red light on plant, EXCEPT:

NTS 2016 SMBBMC
Biology
Growth and Development
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:

By PCR we mean:

UHS 2018
Biology
Biotechnology
Elimination Tool:

The photosynthetic pigments of plants are arranged as clusters in thylakoid membranes. The reaction centers of these clusters consist of _____ molecules.

NUMS Mock 3
Biology
Bioenergetics

Different species of plants and animals living in the same habitat is called :

Hinge joint occurs in:

NTS 2015 SMBBMC
Biology
Support and Movement
Elimination Tool:

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

NUMS Mock 4
Biology
Evolution

Why cannot viruses replicate on their own?

NUMS Mock 2
Biology
Variety of Life

In an ecosystem mycorrhizae are an example of:

UHS 2013
Biology
Kingdom Fungi
Elimination Tool:

Particular array of chromosomes that an individual processes is called its:

NUMS 2019 Reconduct
Biology
Chromosomes and DNA
Elimination Tool:

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

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:

All of the followings are the effects of red light on plant, EXCEPT:

NUMS Mock 2
Biology
Growth and Development

Carolus Linnaeus was believer of which of the following?

PMC Sample 1
Biology
Evolution
Elimination Tool:

Fungi which cause thrush in humans:

UHS 2013
Biology
Kingdom Fungi
Elimination Tool:

Bacteria that can only survive in the presence of oxygen?

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

When both the alleles of a gene pair are same, the organism is said to be:

NUMS Mock 3
Biology
Variation and Genetics

Nodules on roots of leguminous plants have _____ bacteria

Normal resting membrane potential of a neuron is

Amylase is not produced by the following type(s) of salivary gland:

NUMS Mock 1
Biology
Nutrition

Which of the following is a freshwater sponge?

NUMS 2016
Biology
Kingdom Animalia
Elimination Tool:

Which of the following sub stages does not occur in prophase I?

NTS 2015 SMBBMC
Biology
Cell Cycle
Elimination Tool:

Amylase is not produced by the following type(s) of salivary gland:

NUMS 2015
Biology
Nutrition
Elimination Tool:

Chest cavity is bounded by ribs and muscles on the sides, while the floor of chest cavity is called:

NUMS Mock 4
Biology
Gaseous Exchange

Thick, waxy & leathery cuticle around leaves is present in which of the following?

PMC Sample 2
Biology
Gaseous Exchange
Elimination Tool:

Cambium are examples of

If more substrate to already occurring enzymatic reaction is added more enzyme activity is seen because:

Specific heat of vaporization of water is:

The multinucleated mass of the bone-breaking cells is called:

NUMS 2020
Biology
Support and Movement
Elimination Tool:

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

UHS 2018
Biology
Biotechnology
Elimination Tool:

During inspiration, the space inside the chest cavity is increased due to:

UHS 2019
Biology
Gaseous Exchange
Elimination Tool:

Which one is not correct for a productive theory?

Carbon dioxide joins the photosynthetic pathway at:

NTS 2018
Biology
Bioenergetics
Elimination Tool:

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

In an experiment, the production of hormone secretin was blocked. As a result, levels of all of the following enzymes were affected EXCEPT:

NTS 2014
Biology
Coordination and Control
Elimination Tool:

The bacteria can cope in unfavorable condition by producing:

NUMS Mock 4
Biology
Kingdom Prokaryote

Luteinizing hormone, which is produced by the pituitary gland, promotes ovulation and stimulate the ovaries to produce:

NUMS 2019 Cancelled
Biology
Reproduction
Elimination Tool:

The total aggregate of genes in a population at any one time is called population’s

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

NUMS Mock 4
Biology
Coordination and Control

Study of a single population’s relationship to its environment is called

HIV is also known as:

NUMS 2014
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Within the chromosomes, each chromatid contains ______ DNA molecule:

NUMS 2020
Biology
Chromosomes and DNA
Elimination Tool:

Which of the following part of the cell is described as a fluid mosaic?

NUMS Mock 4
Biology
Cell Structure and Function

Read the passage below to answer the question:

Hemophilia is a disorder in which blood fails to clot. Saad, a male hemophiliac, marries Sara, a normal woman and together they have four children, two boys (Ahmed and Ali) and two girls (Alia and Ayesha). None of the children display the symptoms of Hemophilia. Ahmed, Ali, Ayesha, and Ali all marry normal individuals and have children. None of Ahmeds or Ali’s children, male or female, display symptoms of hemophilia, but the sons of Alia and Ayesha display symptoms of hemophilia while the daughters of Alia and Ayesha do not.

If one of Ali’s daughters marries a normal man,what is the probability that one of their children will display symptoms of hemophilia:

NTS 2010
Biology
Variation and Genetics
Elimination Tool:

Phenylmethyl ketone can be converted into ethyl benzene in one step by using:

NUMS Mock 4
Chemistry
Aldehydes and Ketones

Brassica and rosa plant belong to the group of plants:

NUMS 2017
Biology
Kingdom Plantae
Elimination Tool:

Carbon dioxide fixation can be enhanced by enhancing the efficiency of:

NUMS Mock 3
Biology
Bioenergetics

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

UHS 2015
Biology
Growth and Development
Elimination Tool:

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

Nutrition to egg in ovary is provided by which of the following?

PMC Practice 1
Biology
Growth and Development
Elimination Tool:

Which of the following diseases CANNOT be cured by gene therapy?

NUMS 2019 Reconduct
Biology
Biotechnology
Elimination Tool:

Icosahedral viruses have how many faces?

NUMS Mock 4
Biology
Variety of Life

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

NTS 2018
Biology
Cell Structure and Function
Elimination Tool:

Which type of sensory structures carrying the touch sensations are present in papillae extending into ridges of the fingertips?

The gas-exchange portion of the human respiratory system is the:

NTS 2016 SMBBMC
Biology
Gaseous Exchange
Elimination Tool:

Erythroblastosis foetalis occurs when:

NUMS Mock 2
Biology
Variation and Genetics

The process that has transformed life on earth from its earliest forms to vast diversity is?

PMC Sample 3
Biology
Evolution
Elimination Tool:

Human genome is ______ times larger than any other genome sequenced so far

Radiolarians belong to which of the following protozoal group?

he molecule used by most of the animals for long-term energy storage is:

NUMS 2016
Biology
Biological Molecules
Elimination Tool:

About 55% of the volume of the human blood is?

NTS 2015 SMBBMC
Biology
Transport
Elimination Tool:

Which statement is true about an aqueous medium:

Which one of the following is a fish?

NTS 2012
Biology
Kingdom Animalia
Elimination Tool:

Gram negative bacteria are stained pink by the use of:

NUMS 2016
Biology
Kingdom Prokaryote
Elimination Tool:

Natural selection can amplify or diminish variations that are?

PMC Sample 2
Biology
Evolution
Elimination Tool:

Yeasts, the unicellular fungi belongs mostly to the group:

UHS 2018
Biology
Kingdom Fungi
Elimination Tool:

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

NUMS 2015
Biology
Cell Structure and Function
Elimination Tool:

Temperature of temperate deciduous forests is

Which of the following is not an infection of the lungs/respiratory tract?

NUMS 2015
Biology
Gaseous Exchange
Elimination Tool:

In osmosis water molecules move from area of _______ to _______ through semipermeable memberane

A combination of alpha interferon and ribavirin is used for the treatment of hepatitis:

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

The point at which there is no net exchange of gases between leaves and atmosphere is known as

Type of neurons found exclusively in CNS are:

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:

Biological sciences have a set methodology and it is based on

Antheridia and archegonia are _____ organs in bryophytes.

NTS 2015 DUHS and JSMU
Biology
Kingdom Plantae
Elimination Tool:

_______ is involved in lipid synthesis/metabolism.

NUMS Mock 4
Biology
Cell Structure and Function

A cofactor made of inorganic ion which is detachable is called

Coelom that develops from the archenteron as outpouching is

The reaction involved in chemotrophic nutrition is:

NTS 2010
Biology
Nutrition
Elimination Tool:

In a typical compound microscope the resolution is 2 μm. Which is about _____ that of naked eye.

NUMS 2019 Reconduct
Biology
Cell Structure and Function
Elimination Tool:

Which is the correct order of energy transfer from assessory pigments to main photosynthetic pigment?

If another molecule, having a shape very similar to the enzymes substrate, binds to its active site, it would then ____ the enzyme’s function:

NUMS 2020
Biology
Enzymes
Elimination Tool:

The role a species plays in a community including behavior and influence is

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

NUMS Mock 2
Biology
Biological Molecules