The type of gene interaction in which the effect caused by a gene at one locus interfere with the effect caused by another gene at another locus is known as:

NUMS 2018
Biology
Variation and Genetics
Elimination Tool:

Which of the following RNA sequences would be transcribed from the DNA sequence ATGGCTAGGAC?

NUMS Mock 4
Biology
Chromosomes and DNA

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

UHS 2019
Biology
Enzymes
Elimination Tool:

Which of the following is the best desciption of bacteriophage?

PMC Practice 32
Biology
Kingdom Protista
Elimination Tool:

Joints found at the vertebrates are:

NTS 2014
Biology
Support and Movement
Elimination Tool:

Inactive enzyme precursors such as pepsinogen for pepsin are called as:

PMC Practice 1
Biology
Enzymes
Elimination Tool:

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

NUMS Mock 4
Biology
Biological Molecules

A group of biologically active molecules formed from amino acids which interact with the surface of the lipid bilayer of cell membranes are called:

NUMS Mock 3
Biology
Biological Molecules

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.

Which of the following individuals are heterozygous for hemophilia:

NTS 2010
Biology
Variation and Genetics
Elimination Tool:

Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering:

Gametes in animals are produced by

The cells which play a very important role in developing immunity are:

NUMS 2020
Biology
Transport
Elimination Tool:

Many _______ expel a large amount of water by special structures called contractile vacuoles:

NUMS 2020
Biology
Support and Movement
Elimination Tool:

The primary oocyte in mammals has which of the following structures around it:

NUMS 2014
Biology
Reproduction
Elimination Tool:

The specific heat capacity of water is the number of calories required to raise the temperature of water from _____ ˚C is 1.0.

NUMS 2019 Reconduct
Biology
Biological Molecules
Elimination Tool:

The major sign and symptoms of microcephaly is:

NTS 2010
Biology
Growth and Development
Elimination Tool:

Human embryo remains enclosed in:

PMC Practice 1
Biology
Growth and Development
Elimination Tool:

The air spaces may comprise upto ______ of total volume of leaf surface.

A single gene can be amplified by using:

NUMS 2019 Reconduct
Biology
Biotechnology
Elimination Tool:

A complex substance which on hydrolysis yields polyhydroxy aldehyde or ketone subunits is called:

Bones of the skull are joined by:

NTS 2011
Biology
Support and Movement
Elimination Tool:

Egg-laying mammals are called:

NUMS 2016
Biology
Reproduction
Elimination Tool:

_____ are more common in human males and females.

NUMS Mock 3
Biology
Variation and Genetics

Antheridia and archegonia are born on _____ in bryophytes

_________ respiration is directly involved in the production of energy, necessary for all living activities.

Which one is a micromolecule?

Plants of this group are called ferns:

NUMS 2017
Biology
Kingdom Plantae
Elimination Tool:

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

Exposure to ______ light is effective in photosynthesis as it enables guard cells to take up K+ and open the stomata.

NUMS 2015
Biology
Bioenergetics
Elimination Tool:

Smaller the animals:

NUMS 2014
Biology
Gaseous Exchange
Elimination Tool:

At the beginning of nuclear division, the number of microtubule triplets in two pairs of centrioles that migrate to opposite poles are:

UHS 2015
Biology
Cell Cycle
Elimination Tool:

Ecological role of fungi as decomposers is only paralleled by

Which one is not a day neutral plant?

Autoimmune diseases act at the principle of:

NUMS 2020
Biology
Transport
Elimination Tool:

The enzyme found in saliva responsible for the digestion of carbohydrates is:

NTS 2018
Biology
Enzymes
Elimination Tool:

Which of the following bacteria possesses a spherical shape?

PMC Practice 4
Biology
Kingdom Prokaryote
Elimination Tool:

Which of the following bacteria are without a cell wall?

NUMS 2016
Biology
Kingdom Prokaryote
Elimination Tool:

Lateral meristems are present in

In meiosis II, ______ differentiate into sperms.

NUMS 2019 Reconduct
Biology
Cell Cycle
Elimination Tool:

Which bond provides stability to complex carbohydrate molecules?

An example of passive acquired immunity is?

NTS 2015 DUHS and JSMU
Biology
Transport
Elimination Tool:

_______ is involved in lipid synthesis/metabolism.

NUMS Mock 4
Biology
Cell Structure and Function

Which of the following is a vestigial organ?

PMC Sample 2
Biology
Evolution
Elimination Tool:

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

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

Horsetails are included in class

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

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

Treatment of hereditary disorders by gene manipulations is called:

NUMS 2016
Biology
Biotechnology
Elimination Tool:

First infectious disease against which effective method of prevention developed was a _______:

NUMS 2020
Biology
Bio-diversity | Variety of Life
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 of the following statement about plants is incorrect?

PMC Sample 2
Biology
Kingdom Plantae
Elimination Tool:

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

PMC 2020
Biology
Bioenergetics
Elimination Tool:

Which characteristic led to the evolution of seed?

NUMS 2020
Biology
Kingdom Plantae
Elimination Tool:

The cofactor usually acts as “bridge” between:

NUMS 2018
Biology
Enzymes
Elimination Tool:

A group of ribosomes attached to mRNA is known as

The enzyme which seals the foreign DNA into the vector is

Natural selection can amplify or diminish variations that are

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

Spread of tumor cells and establishment of secondary areas of growth is

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

NUMS 2020
Biology
Support and Movement
Elimination Tool:

The end product of Glycolysis is:

NTS 2011
Biology
Bioenergetics
Elimination Tool:

Process that supplies food to living things through decaying and decomposition is called

Whenever a virus encounters an unfamiliar organism, the virus may undergo multiple mutations and emerge as a variant that produces:

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

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

Q.1 In all plants the major sites of photosynthesis are?

Gametes are produced by:

PMC 2021 Tested
Biology
Cell Cycle
Elimination Tool:

Development of bark in plants and skin in animals is a method for

Hornwarts are included in sub-class

The site and principal mechanism for the passage of glucose into the bloodstream in the human kidney is the:

NTS 2014
Biology
Homeostasis
Elimination Tool:

Net yield of H2O in Photosynthesis is

The ultimate source of all changes is:

NUMS 2015
Biology
Evolution
Elimination Tool:

A Dutch scientist firstly observed very small creatures in

PMC Practice 6
Biology
Kingdom Prokaryote
Elimination Tool:

Which hormone prepares the body for situations of stress and emergency?

NUMS 2014
Biology
Homeostasis
Elimination Tool:

The optimum pH for the enzyme arginase is which of the following?

PMC Sample 2
Biology
Enzymes
Elimination Tool:

In roots, the apoplast pathway of water is disrupted when water reaches:

PMC 2020
Biology
Transport
Elimination Tool:

Dietary fiber passes through to several structures after leaving the stomach. In which order does the dietary fiber pass through the structures?

NTS 2015 DUHS and JSMU
Biology
Nutrition
Elimination Tool:

Coniferous forests located at high altitude are called

Which of the following is the components / tools of recombinant DNA technology?

PMC 2020
Biology
Biotechnology
Elimination Tool:

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

NUMS 2020
Biology
Nutrition
Elimination Tool:

Which of the following fishes excrete large volume of diluted urine?

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:

Duration of menstrual cycle is how many days on average?

PMC Sample 1
Biology
Reproduction
Elimination Tool:

Estimating relative CO2consumption or O2release during photosynthesis at different wavelengths of light, is termed as:

NUMS 2015
Biology
Bioenergetics
Elimination Tool:

In plants which of the following is a waste product produced both during photosynthesis and respiration

Which of the following statement is incorrect about Molluscans?

Which of the following cell organelles involved in the synthesis of cell wall and middle lamella?

PMC 2020
Biology
Cell Structure and Function
Elimination Tool:

Booklungs serve the function of respiration in:

NUMS Mock 3
Biology
Gaseous Exchange

The long chains of HIV-proteins are cut down by proteases enzyme of ______.

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

If we cross round yellow seeded plant with green wrinkled seeded plants, what will be phenotypic ratio at F2 generation?

NUMS 2019 Cancelled
Biology
Variation and Genetics
Elimination Tool:

What do we call the cell surface membrane of a muscle fibre?

NUMS Mock 3
Biology
Support and Movement

Growth process is

Mosses are

Pick the correct option about Drosophila.

NUMS Mock 3
Biology
Variation and Genetics