When were bacteriophages discovered by Twort?

NUMS Mock 2
Biology
Bio-diversity | Variety of Life
Variety of Life

A substance which binds at the active site of the enzyme but does not result in the formation of the products is called:

During meiosis, the homologous chromosomes come together and form pairs, this process is called:

PMC 2020
Biology
Cell Cycle
Elimination Tool:

Which of the following are composed of proteins only which contain the information that codes for their own replication?

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

Secondary succession starts from A.

Which of the following is found beneath the prostate gland?

PMC Sample 1
Biology
Reproduction
Elimination Tool:

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:

Root like structure in saprotrophic fungi are called

The second stage of the Prophase of Meiosis, following Leptotene, during which homologous chromosomes begin to pair is called:

NTS 2019
Biology
Cell Cycle
Elimination Tool:

Lysosomes function in:

NUMS Mock 1
Biology
Cell Structure and Function

The genome of viruses is composed of

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

Which of the following is correct in case of active membrane potential?

NUMS Mock 2
Biology

All of the following are coelomates except

Egg-Laying mammals are called:

NUMS Mock 3
Biology
Reproduction

Most of the photosynthesis on earth is carried by

Which one is the basic element of organic compounds ?

The branch of biology which deals with the study of chemical compounds and the chemical processes in the fliving organisms is called:

Which of the following photosystems is involved in cyclic photophosphorylation?

NUMS Mock 2
Biology
Bioenergetics

Tendon is made up of:

NUMS 2014
Biology
Support and Movement
Elimination Tool:

Process ensuring the survival of species over long periods of time, even though individual members of the species die.

NUMS Mock 2
Biology
Man and His Environment

Which one of the following is most likely to occur in a boy during puberty?

NUMS Mock 4
Biology
Reproduction

60S and 40S subunit combine to form ______ particle

Number of bones in the skull:

NUMS 2016
Biology
Support and Movement
Elimination Tool:

The estrogen hormone secretion during the oogenesis is stimulated by:

NUMS 2020
Biology
Coordination and Control
Elimination Tool:

Overgrazing results in:

NUMS 2019 Cancelled
Biology
Man and His Environment
Elimination Tool:

Most of the marine invertebrates are

Number of spiracles present in the thorax of cockroach is

Which type of mucosa cells secrete pepsinogen?

NUMS 2014
Biology
Nutrition
Elimination Tool:

Syphilis is caused by:

NUMS 2018
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Binomial nomenclature was proposed for the first time by:

NTS 2010
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Referring to sexual reproduction, humans are:

NTS 2018
Biology
Reproduction
Elimination Tool:

Xerophytes have small thick leaves to;

UHS 2019
Biology
Gaseous Exchange
Elimination Tool:

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

NUMS 2019 Cancelled
Biology
Reproduction
Elimination Tool:

Which organ(s) in the male reproductive system produce gametes?

NUMS Mock 4
Biology
Reproduction

The scientific name of potato is Solanum tuberosum and that of brinjal is Solanum melongena. This indicates that both potato and brinjal are members of the

NTS 2014
Biology
Kingdom Plantae
Elimination Tool:

Productivity of an ecosystem is indicated by

DNA fingerprinting is basically done for:

NUMS 2015
Biology
Biotechnology
Elimination Tool:

The complete, mature and infection virus particle is known as:

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

Eukaryotic, multicellular, and consumers belong to ______ kingdom.

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

______ occurs because natural selection gives some alleles a better chance of survival than others:

PMC 2020
Biology
Evolution
Elimination Tool:

The only possible treatment in end stage renal failure is:

NUMS 2018
Biology
Homeostasis
Elimination Tool:

Which one of the following represents the changes that occur in the ovary and the uterus approximately every 28 days involving ovulation with the breakdown and loss of the lining of the uterus?

PMC 2020
Biology
Reproduction
Elimination Tool:

Hydra is an example of _______ feeder

The structure of an enzyme is altered by:

During which stage of meiosis do centromeres divide?

NTS 2016 DUHS & JSMU
Biology
Cell Cycle
Elimination Tool:

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

The term “Loss of appetite” refers to disease:

NUMS Mock 3
Biology
Nutrition

The phytohormones controlling the plant movements are?

NTS 2015 SMBBMC
Biology
Coordination and Control
Elimination Tool:

Change in frequency of alleles that occurs by chance Is called as:

UHS 2019
Biology
Evolution
Elimination Tool:

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

Secondary cell wall of sclerenchyma cells is impregnated with

Tails can be regenerated in:

NUMS Mock 3
Biology
Growth and Development

Neo-Darwinism has integrated discoveries and ideas from

In Hornworts the band of meristematic tissue is found near

Pituitary gland releases ______ hormone and _______ hormone while ovaries produce _______ and progesterone.

NTS 2019
Biology
Reproduction
Elimination Tool:

Lock and Key Model for enzyme action propose by Emil Fischer suggests that:

PMC 2020
Biology
Enzymes
Elimination Tool:

In animals coordination is achieved by means of

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:

Which of the following neurotransmitters function, both as neurotransmitter and hormones, decreasing our perception of pain?

PMC 2020
Biology
Coordination and Control
Elimination Tool:

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

PMC Practice 2
Biology
Kingdom Prokaryote
Elimination Tool:

Annual rainfall in grass land i

The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called :

In which organism males are haploid?

PMC Sample 1
Biology
Reproduction
Elimination Tool:

In birds the male is the homogametic sex. A male bird showing the recessive trait was mated with a female showing the dominant trait of a characteristic governed by a pair of alleles which are sex-linked. What is the probability that the male offspring will show the dominant trait?

NTS 2014
Biology
Variation and Genetics
Elimination Tool:

Cardiac output is increased by all of the following EXCEPT:

NUMS Mock 2
Biology
Transport

Which of the following bacteria do not have flagella commonly?

This enzyme is used to cut DNA molecule in rDNA technology

PMC Sample 2
Biology
Biotechnology
Elimination Tool:

The Meselson and Stahl experiment confirmed that DNA replicates in _____ manner.

NUMS 2019 Reconduct
Biology
Chromosomes and DNA
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:

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

Transgenic organisms:

PMC 2020
Biology
Biotechnology
Elimination Tool:

The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by

T-Lymphocytes are matured in thymus glands and they are produced in:

NUMS 2016
Biology
Transport
Elimination Tool:

The process of membrane fusion and the movement of material out of the cell, is called:

NTS 2016 SMBBMC
Biology
Cell Structure and Function
Elimination Tool:

The oxidation of PGAL during glycolysis yields ____ molecules.

NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:

Five kingdom classification was proposed by :

Flow of energy in an ecosystem is:

NUMS 2014
Biology
Man and His Environment
Elimination Tool:

Ecological role of fungi as decomposers is only paralleled by

Pseudo coelomate animals are:

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

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

NUMS Mock 4
Chemistry
Aldehydes and Ketones

The term which is not related to the process of evolution of leaf is:

NUMS 2020
Biology
Kingdom Plantae
Elimination Tool:

Now-a-days every newborn gets regular shots of vaccine for polio. It contains _________ for polio to make a child immune against this disease.

NUMS Mock 4
Biology
Bio-diversity | Variety of Life

An unbroken series of species arranged in ancestors to descendent sequence with each later species having evolved from one that immediately preceded it is called:

Intercalary meristems are of

Mosses are

A pea plant with yellow seed was crossed to a plant having green seeds. What will happen in F1; if plants are true breeding

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

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

NUMS 2015
Biology
Bioenergetics
Elimination Tool:

Transgenic plants are produced when foreign genes are introduced into

Urine leaves the kidney through a duct called:

NUMS 2020
Biology
Homeostasis
Elimination Tool:

Chicken pox is caused by:

NTS 2011
Biology
Bio-diversity | Variety of Life
Elimination Tool: