Chromosomes are composed of

Which valve action results from an increase in pressure in the ventricles of the heart?

NTS 2012
Biology
Transport
Elimination Tool:

Conversion of ammonium into nitrates is:

UHS 2018
Biology
Man and His Environment
Elimination Tool:

Which of the following statements concerning nucleolus is correct?

NTS 2014
Biology
Cell Cycle
Elimination Tool:

As pH of blood decreases, H+ ions increases, which combine the proteins part of hemoglobin, to decrease its ability to bind with:

NUMS 2017
Biology
Gaseous Exchange
Elimination Tool:

Process of uncontrolled cell division is due to which one of the following reasons?

NUMS 2018
Biology
Cell Cycle
Elimination Tool:

Foliose lichen are

Two animals are mated. One is homozygous dominant for one character and homozygous recessive for another. The other animal Is heterozygous for both characters. How many phenotypes are expected in the offspring of this cross?

NTS 2016 DUHS & JSMU
Biology
Variation and Genetics
Elimination Tool:

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

Cyanobacteria help in nitrogen fixation because they have:

PMC 2021 Tested
Biology
Kingdom Prokaryote
Elimination Tool:

75% osmotic pressure of blood is maintained by:

NUMS 2015
Biology
Transport
Elimination Tool:

The deficiency of which of the following cause severe combined immunodeficiency

PMC Sample 3
Biology
Biotechnology
Elimination Tool:

Growth process is

The property of water due to which it works as a temperature stabilizer and hence protect living organisms from sudden thermal changes is:

Gametes are produced by:

PMC 2021 Tested
Biology
Cell Cycle
Elimination Tool:

The term bivalent means:

NUMS 2014
Biology
Cell Cycle
Elimination Tool:

Ammonia is chief excretory product in:

NUMS 2014
Biology
Homeostasis
Elimination Tool:

Read the passage below to answer the question:

Haemophilia is a disorder in which blood fails to clot. Saad, a male haemophiliac, 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 Haemophilia.

Ahmed, Ali, Ayesha, and Ali all marry normal individuals and have children. None of Ahmed’s or Ali’s children, male or female, display symptoms of haemophilia, but the sons of Alia and Ayesha display symptoms of haemophilia while the daughters of Alia and Ayesha do not.

Which of the following best explains the reason that Ahmed, Ali, Ayesha and Alia do not display symptoms of haemophilia, even though their father, Saad, is a haemophiliac.

NTS 2010
Biology
Variation and Genetics
Elimination Tool:

The individual with harelip shows which of the following conditions?

NUMS 2014
Biology
Growth and Development
Elimination Tool:

In a marine environment, the ion secreted by the kidney is:

NUMS 2020
Biology
Homeostasis
Elimination Tool:

Which of the following pigment is Blue- green in colour:

Tissue is a

PMC 2020
Biology
Cell Structure and Function
Elimination Tool:

Tails can be regenerated in:

NUMS 2015
Biology
Growth and Development
Elimination Tool:

In semi-conservative replication

Anthocyanins are various types of colorful pigments present in the:

NUMS 2014
Biology
Cell Structure and Function
Elimination Tool:

Which one is the basic element of organic compounds ?

Photosystems are located in _

All of the following are mammals EXCEPT the:

NTS 2017
Biology
Kingdom Animalia
Elimination Tool:

Gametes in animals are produced by

When resources gets scarce, the population growth?

PMC Practice 1
Biology
Man and His Environment
Elimination Tool:

Which of the following is a freshwater sponge?

NUMS 2016
Biology
Kingdom Animalia
Elimination Tool:

Autoimmune diseases act at the principle of:

NUMS 2020
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:

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

A plant disease which is not caused by a fungus is:

NUMS 2015
Biology
Kingdom Fungi
Elimination Tool:

In paper chromatography xanthophyll will give ______ color:

NTS 2010
Biology
Bioenergetics
Elimination Tool:

Lamarck is best known for his theory of:

NUMS Mock 3
Biology
Evolution

In alkaptonuria

Poliomyelitis normally affects the:

NUMS 2014
Biology
Support and Movement
Elimination Tool:

The basic structural framework of all types of membranes are:

NUMS 2020
Biology
Cell Structure and Function
Elimination Tool:

The autonomic nervous system controls all of the following activities except:

NUMS Mock 1
Biology
Coordination and Control

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

NUMS Mock 3
Biology
Biotechnology

Golgi complex is responsible for the formation of secretory granules in _____ cell.

NUMS Mock 4
Biology
Cell Structure and Function

Movement of the material across the cell membrane which does not requiring expenditure of metabolic energy is called

While working in a laboratory, before studying a sample under the microscope, it was immersed in a dye solution to obtain ______.

NUMS Mock 1
Biology
Biology and its Major Fields of Specialization

Which of the following have both internal and external digestion?

NUMS 2016
Biology
Nutrition
Elimination Tool:

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

Amniocentesis is performed between the:

NTS 2011
Biology
Reproduction
Elimination Tool:

Brassica and rosa plant belong to the group of plants:

NUMS 2017
Biology
Kingdom Plantae
Elimination Tool:

In some cases the blastomere can produce complete embryo the cleavage will be

In human gut, chylomicrons are formed by the combination of:

NUMS Mock 1
Biology
Nutrition

In plants chlorosis is caused by the deficiency of:

PMC Sample 3
Biology
Kingdom Plantae
Elimination Tool:

Which bond is present between the nucleotides of DNA:

NUMS Mock 4
Biology
Chromosomes and DNA

Coenocytic hyphae are also known as

How are new mitochondria formed by the pre-existing ones?

Vaccine Was discovered by :

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

NTS 2011
Biology
Transport
Elimination Tool:

Lamarck is best known for his theory of:

NUMS 2016
Biology
Evolution
Elimination Tool:

In the human body, blood circulating from the gut to the heart passes through the:

NTS 2013
Biology
Transport
Elimination Tool:

The genome of viruses is composed of

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

Germ layers are formed in which stage of development?

NUMS 2020
Biology
Growth and Development
Elimination Tool:

Which group of organisms has the following features?

I. three pairs of jointed legs

II. three-part segmented body

III. one pair of antennae

NTS 2017
Biology
Kingdom Animalia
Elimination Tool:

70S sized ribosomes are found in the cytoplasm of:

PMC 2020
Biology
Cell Structure and Function
Elimination Tool:

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

Phenylketonuria is

NUMS Mock 2
Biology
Chromosomes and DNA

The irritant substances of smoke cause smoker’s cough which weakened and bursts:

NUMS 2019 Reconduct
Biology
Gaseous Exchange
Elimination Tool:

When the muscle is required to contract, calcium ion binds with ______ molecule and causes them to move slightly.

NUMS 2019 Cancelled
Biology
Support and Movement
Elimination Tool:

Which statement is incorrect?

Eukaryotic, multicellular, and consumers belong to ______ kingdom.

NUMS 2017
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Which organ is called the body thermostat?

NUMS 2020
Biology
Homeostasis
Elimination Tool:

Antherozoids the male gamete in bryophytes are attracted towards Archegonium i.e. female sex organ by

Crossing over is an exchange of genes between _______ resulting in a mixture of parental characteristics in offspring.

NTS 2019
Biology
Cell Cycle
Elimination Tool:

Cyanobacteria resemble photosynthetic eukaryotes because they have:

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

When a frog is kept in water for some time it sheds a thin covering of skin called ____

NUMS 2014
Biology
Homeostasis
Elimination Tool:

Gametes in animals are produced by which of the following?

PMC Practice 2
Biology
Cell Cycle
Elimination Tool:

Turner’s syndrome is characterized by having:

UHS 2015
Biology
Growth and Development
Elimination Tool:

DNA polymerase enzyme for PCR is isolated from bacteria, Thermus aquaticus, because;

UHS 2019
Biology
Biotechnology
Elimination Tool:

The maximum amount of oxygen which normal human blood absorbs and carries at sea level is how many ml per 100 ml of blood?

PMC Sample 2
Biology
Gaseous Exchange
Elimination Tool:

Part of the amino acid sequences In normal and sickle cell hemoglobin are shown.

Normal haemoglobin

Thr – pro – glu – glu

Sickle cell haemoglobin

thr – pro – val – glu

mRNA codons for these amino acids are

Glutamine (glu) GAA GAG

Threonine (thr) ACU ACC

Proline (pro) CCU CCC

Valine (val) GUA GUG

Which transfer RNA molecule is Involved in the formation of this part of the sickle cell haemoglobin?

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

The rate of reaction is directly proportional to the concentration of an enzyme which statement is incorrect in this respect:

Rod-shaped bacteria are known as:

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

Undigested food in cockroach is stored in:

NUMS 2015
Biology
Nutrition
Elimination Tool:

Failure of separation of sister chromatids is called:

NUMS 2020
Biology
Cell Cycle
Elimination Tool:

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 optimum pH of catalase is:

NUMS 2018
Biology
Enzymes
Elimination Tool:

Lambda phage is

Guard cells function as:

NUMS 2019 Cancelled
Biology
Gaseous Exchange
Elimination Tool:

Which one of the following pairs represents an analogous feature?

NUMS 2018
Biology
Evolution
Elimination Tool:

The trait “Kernel colour in corn” in controlled by how many pairs of genes

Hybrid black Guinea pigs are crossed with each other. The resulting offsprings will be:

NUMS 2016
Biology
Variation and Genetics
Elimination Tool:

Which statement is true about an aqueous medium: