2023-11-28 15:21
1.1 Curie equal to 3.7x 109Becquerel37x 10 9 Becquerel37x 106 Becquerel3.7x 106 Becquerel
2.Among the following which radioisotope is not a Betta emitter?C14I 125P32H3
Learn more:
Micr… Read More
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2023-11-28 15:13
1.Which one of the following would contribute to intrinsic fluorescence to a protein disulphide bondsaromatic amino acidsCharged amino acidsbranched chain amino acids
2.Which one of the… Read More
2023-11-28 14:47
1.In western blotting based HIV diagnosis technique, the patient sample is screened for AntigenAntibodyVirusVirus outer coat protein
2.Which one of the following analytical techniques d… Read More
2023-11-28 11:20
Francis Galton known as father of biostatisticsMeasures of Central Tendency: Average, Mean, Median and ModeStastics of Dispersion: Mean deviation, Standard deviation and VarianceMean de… Read More
2023-11-28 07:40
1.Variation in two characters in two or more species can be best represented byHistogramLinear curveScattered diagramTriangular box
2.Which one of the following statements regarding nor… Read More
2023-11-28 06:27
1.Chromosomes of Yeast and Protozoa are best separated using ?Visible microscopyElecton microscopy PAGEPulse Field Gel Electrophoresis
2.DNA Fragment between size 2000 KD and 500 Kd ca… Read More
2023-11-28 06:26
1.Minimum resolution of electron microscope is 0.2nm20nm0.2mm100nm
2.In electron microscopy, to dect specific macromolecule or structure such as spindle pole body (SPB),the frequently u… Read More
2023-11-27 17:03
Question: In remote sensing, Which one of the following formulae is used for the calculation of normalized difference vegetation Index (NDVI)?1. RED / (NIR+RED)2. RED / (NIR-RED)3.(NIR+… Read More
2023-11-27 15:24
🎯Electroencephalography: Brain activity recordingAn electroencephalogram (EEG) is a test that measures electrical activity in the brain using small, metal discs (electrodes) att… Read More
2023-11-21 18:05
1. A pedigree depicting the inheritance of a trait in a family is shown. The trait represented is:
Autosomal dominantAutosomal recessiveY-linkedX-linked recessive
2.Separation of DNA… Read More
2023-11-16 07:35
Spectroscopy is a technique used for the study of interaction of electromagnetic radiation with matter. It is used for the identification of substances through the spectrum emitted from or a… Read More
2023-11-07 05:39
Storage polysaccharides and structural polysaccharidesDepending on the functional roles played by homopolysaccharides are divided into storage polysaccharides and struct… Read More
2023-11-04 17:49
Algae Read More
2023-11-04 14:59
The first level of classification among plants depends on whether the plant body has well differentiated, distinct parts. The next level of classification is based on whether… Read More
2023-11-03 14:39
2023-11-03 14:02
2023-11-03 01:47
Official Notification: Instructions and Procedure for online submission of Application FormApply NowLife Sciences: The candidate is required to answer a maximum of 15, 35 and 25
q… Read More
2023-10-31 13:41
Enzymes were first discovered by Edward Buchner in 1897. He found that even an extract from the yeat cells could ferment glucose. He named those factors in the yeast responsible for fe… Read More
2023-10-30 06:42
Major Phyla:Porifera Coelenterata (Cnidaria)CtenophoraPlatyhelminthesAschelminthesAnnelidaArthropodaMolluscaEchinodermataHemichordataChordata1. Phylum PoriferaCommonly called spon… Read More
2023-10-27 08:56
A
special branch of science which applies biotechnology
to study the natural environment, identifying optimum,
but sustainable uses of plants, animals and microorganisms to develop gr… Read More
2023-10-27 07:24
Gene therapy, this technology is most helpful in the treatment of diseases caused by gene
defects such as cystic fibrosis, thalassemia, Parkinson’s disease, etc.
Conceptualised i… Read More
2023-10-26 14:54
• Biotechnology refers to the different technologies that
make use of living cells and/or biological molecules to
generate useful products for the benefit of mankind. • T… Read More
2023-10-26 14:52
• Millions of tasks performed by our body become possible
due to the presence of ‘cell’, which is the ‘basic unit of
life’. Cells can be broadly categorised… Read More
2023-10-26 13:33
• Simple light microscopy enables us to see things that are
otherwise too small to be observed by our naked eyes.
Studying minute details of internal organisation of cells
is so very di… Read More
2023-10-26 13:31
Haploid cells have only one copy of the chromosome while
diploid cells have two copies of the same chromosome. • Any deviation where one or few chromosomes are either
absent… Read More
2023-10-24 12:56
What are
bacteriophages?
The word
"bacteriophage" literally means "bacteria eater," because
bacteriophages destroy their host bacterial cellBacteriophages
are viruses that infect bacteria… Read More
2023-10-24 08:26
Class 11 BiotechnologyUnit I: An Introduction to Biotechnology
Chapter 1: Introduction
1.1 Historical Perspectives
1.2 Applications of Modern Biotechnology
1.3 Biotechnology in India: A… Read More
2023-10-24 08:09
• Carbohydrates are made up of carbon, hydrogen and
oxygen atoms, and are widely distributed in animal and
plant tissues. • Carbohydrates are categorised into 4 maj… Read More
2023-10-24 08:04
• Enzymes are catalysts that catalyse the biochemical
reactions in the living system. • Each enzyme has an active site into which the substrate
molecule fits precisely. The &l&hell…Read More
2023-10-24 07:59
• All cells respond to signals in their environment through
specific receptors which can either be located on the cell
surface or present inside the cytoplasm or the nucleus.
A li… Read More
2023-10-24 07:53
• Characteristics that run in families have a genetic basis,
meaning that they depend on genetic information that a
person inherits from his or her parents. This is true for all
pl… Read More
2023-10-24 07:47
• DNA was, for the first time, isolated from nuclei of pus
cells by Johann Friedrich Miescher in 1869. • The phenomenon of transfer of genetic material from
one cell to a… Read More
2023-10-24 07:32
Protein Informatics and Cheminformatics• Protein informatics is a growing field of information
technology in which information about any protein is
collected using sophisticated techniq… Read More
2023-10-24 07:04
An Overview of Recombinant
DNA TechnologyThe methods used for manipulating nucleic acid/
genome (DNA) of an organism are collectively referred
to as recombinant DNA (rDNA) technology o… Read More
2023-10-24 07:00
• Isolation of nucleic acids from different organisms is the
most essential requirement for any molecular biology
experiment. There are four steps in the process of
extractio… Read More
2023-10-24 06:58
•To study and compare the inherited variations in human
DNA without sequencing, a new technique, known as ‘DNA
fingerprinting’ was developed by Sir Alec Jeffreys in 1984 at… Read More
2023-10-24 06:50
• The genome of an organism is the complete DNA content,
which includes DNA present in the nucleoid in prokaryotes
and the DNA present in the chromosomes of the nucleus,
mito… Read More
2023-10-18 15:11
2023-10-18 14:54
Glass frogs. These fascinating creatures get their name from their translucent skin, which allows us to see into their bodies and observe their inner workings.The glass frog family, Ce… Read More
2023-10-15 15:01
Contents of Class XI SyllabusUnit 1: Diversity in Living WorldWhat is living?; Biodiversity; Need for classification; Three domains of life; Taxonomy & Systematics; Conce… Read More
2023-10-15 15:00
Contents of Class XII SyllabusUnit 6: ReproductionReproduction in organisms: Reproduction, a characteristic feature of all organisms for continuation of species; Modes… Read More
2023-10-15 14:56
NCERT Text BookNCERT Biology -Class 11NCERT Biology -Class 12NEET UG Syllabus 2024 Read More
2023-10-12 15:38
2023-10-12 14:46
Muscular dystrophyMuscular dystrophy is a group of genetic disorders that cause progressive muscle weakness and degeneration. It affects both males and females and can manifest in early chil… Read More
2023-10-08 02:25
2023 Nobel Prize in Physiology or Medicine was jointly
awarded to KATALIN KARIKÓ And DREW WEISSMAN “for their discoveries concerning nucleoside base
modifications that enab… Read More
2023-10-05 01:35
Lion: A large carnivorous feline known for its majestic mane and fierce roar.Elephant: A massive mammal with a long trunk used for drinking, eating, and communication. African elephant… Read More
2023-10-02 08:11
GATE Life Science Previous Question Papers Read More
2023-10-02 08:10
GATE Ecology and Evolution Syllabus 2024GATE -Ecology and Evolution Question Papers Read More
2023-10-02 08:08
GATE Biotechnology Syllabus 2024
GATE -Biotechnology Previous Year Question PapersGATE -Biotechnology - Chapter wise Previous Questions Read More
2023-10-01 03:10
Definition: A karyotype is an individual’s complete set of chromosomes. The term also refers to a laboratory-produced image of a person’s chromosomes isolated from an… Read More
2023-09-28 13:02
What the world is more
prone to epidemics?
With more frequent
travel, globalization, globalized trade and greater interconnectedness between countries,
infectious disease outbreaks of… Read More
2023-09-23 02:46
Cell Analogy to
factory
Cell is the basic
structural and functional unit of life. The easiest way to understand cell
structure and function is to compare and visualize cell with some famili… Read More
2023-09-23 02:31
How neurons "talk" to
each other?Neurons communicate
with each other through electrical and chemical signals. Our brain has
approximately 80 billion nerve cells, called neurons. Neurons talk… Read More
2023-09-20 08:46
The kingdom protista includes eukaryotic microorganisms, They are uni-cellular and generally aquatic. On evolutionary point of view this kingdom acts as a link between prokaryotic mone… Read More
2023-09-17 08:39
Manta rays are close relatives of all sharks and rays, meaning they have a skeleton made of cartilage rather than bone. Mantas are found in warm temperate, subtropical and tropical wat… Read More
2023-09-16 06:56
The red panda (Ailurus fulgens) is a bear-like creature with thick russet fur that is slightly larger than a domestic cat. The abdomen and limbs are black, while the side of the head an… Read More
2023-09-16 01:15
The Montreal Protocol is an international treaty established in 1987 to protect the Earth's ozone layer. It is widely regarded as one of the most successful environmental agreements in… Read More
2023-09-16 01:01
The ozone layer, a delicate gas shield, shields the Earth from the sun's damaging radiation, thereby preserving life on the planet. The phaseout of controlled uses of ozone depleting substan… Read More
2023-09-13 06:21
Phylum Platyhelminthes (Gr.platys, flat+ helminthes, worm) includes
worms with a flat body. This phylum includes about 13,000 species. Animals with
elongated bodies but no conspicuous a… Read More
2023-09-12 08:31
The phylum Ctenophora
takes its name from two Greek words, ktenos= comb and phora= bearing, as they
possess eight combs like plates of locomotion. Ctenophora is a small phylum of
marine anim… Read More
2023-09-11 15:38
🪸Why are coral reefs important? Coral reefs cover less than 0.1% of the
earth’s surface, but they are the most biodiverse marine ecosystem in the
world.
Coral reefs are h… Read More
2023-09-10 12:10
What is Bacterial Growth Curve?The bacterial growth curve is a graphical representation that shows the number of live cells in a bacterial population over a period of time when cultured in a… Read More
2023-04-06 04:00
IIT JAM Biotechnology Syllabus IIT JAM Biotechnology Question Paper Set 2012-2022 Read More
2023-04-05 15:49
GATE Environmental Science and Engineering (ES) Syllabus
Question Papers20212022 Read More
2023-04-05 15:40
2023-04-05 15:38
GATE Ecology & Evolution (EY) Syllabus
Question Papers2014-2019 (6 Question Papers Set)202020212022 Read More
2023-04-05 15:32
Question Papers2011-2019 (9 Question Paper Set)202020212022 GATE Life sciences (XL) Syllabus Read More
2023-04-05 15:18
GATE Biotechnology (BT) SyllabusQuestion Papers2010- 2019 (10 Question Paper Set)202020212022 Read More
2023-04-05 14:59
2023-04-05 14:43
2023-04-05 14:43
2023-04-05 12:12
2023-04-05 12:06
2023-04-05 12:00
2023-04-05 11:41
2023-04-05 11:36
2023-04-05 11:34
2023-04-05 11:19
2023-04-05 11:08
2023-04-05 11:03
2023-04-05 04:27
Revised National Ambient Air Quality Standards (NAAQS) 18th November, 2009Practice Previous Exam Questions: 1. PM2.5 concentrations in ambient air can be measured using (GATE… Read More
2023-04-05 04:25
1. Reverse Transcriptase Polymerase Chain Reaction is an analytical procedure used in detection of pathogenic microorganisms. Which one of the following statements is NOT correct i… Read More
2023-04-05 04:23
Practice Exam Questions:1. Which of the following species attacks hemoglobin to form carboxyhemoglobin thereby causing poisonous effect?a)CH3b) CO c) CO2 d) CF… Read More
2023-04-03 10:39
The many types of dyes used to stain microorganisms have two features in common: they have chromophore groups, groups with conjugated double bonds that give the dye its color, and they… Read More
2023-04-02 10:50
Enzymes are biological
catalysts that speeds up the rate of reaction by lowering activation energy
without undergoing any change by itself.
In this post, lets
discuss 12 major enzymes used… Read More
2023-03-21 01:41
What is Gene Cloning?
Gene Cloning or
molecular cloning is the process of making many identical copies of a DNA
fragment or gene.
Applications of Gene
cloning
Study of gene
structure and… Read More
2023-03-12 15:33
5 Steps in Plant Tissue Culture
What is Plant tissue culture?
Tissue culture is
the in vitro aseptic culture of cells, tissues, organs or
whole plant under control… Read More
2023-03-02 08:46
Normality, Molality, Molarity, Mole fraction, Percentage solution, Parts per million Define Molarity(M) Molarity is defined as the number of moles of solute p… Read More
2023-03-02 05:27
Biodegradable materials are used in packaging, agriculture, medicine and other areas. In recent years there has been an increase in interest in biodegradable polymers. Two classes of biodegr… Read More
2023-03-01 10:20
Classification of Polymers Based on Molecular ForcesBased on the inter molecular forces polymers are classified into four types. They are Elastomers, Fibers, Thermo plastics and Thermo setti… Read More
2023-03-01 10:15
Classification of Polymers Based on Mode of PolymerisationPolymerisation reactions are of two types namely: i) Addition polymerization and ii) Condensation polymerizationi) Additio… Read More
2023-03-01 10:09
The word Polymer has a Greek origin, which means many units(parts) . Polymer is defined as a chemical substance of a high molecular mass formed by the combination of a large number of simple… Read More
2023-03-01 09:32
Chromatography is an important biophysical technique that enables the separation, identification, and purification of the components of a mixture for qualitative and quantitative analysis.&n&hell…Read More
2023-02-28 11:08
Gas chromatographic analysis of organic metabolites has been used widely for the analysis of fats,fatty acids, pesticides and several volatile substances. Extensive studies have been made po… Read More
2023-02-28 10:57
High-Pressure Liquid Chromatography (HPLC)Using this chromatography technique it is possible to perform structural, and functional analysis, and purification of many molecules within a… Read More
2023-02-28 10:52
The general chromatographic method was introduced into biology by Tswett in 1906 and various adsorbants such as starch and aluminium oxide are poured as a slurry into a long glass tube. An u… Read More
2023-02-28 10:25
Affinity ChromatographyThis is a very useful method for the purification of a biomolecule (such as antigen antibodyenzymes) on the basis of its biological function or individual chemic… Read More
2023-02-28 10:22
This is a microchromatographic method supplementing paper, column and ion-exchange chromatography. In this method, a glass plate or some other supports is coated with a thin layer of adsorbe… Read More
2023-02-28 10:17
This technique was developed by the English chemists Martin and Synge in 1944. It helps in the separation of a mixture of biochemical or chemical substances, with the help of a su… Read More
2023-02-28 10:14
Biomolecules will bind themselves to oppositely charged groups due to the presence of chargedmoieties, on an ion-exchange matrix. Separation of the bound substances occurs when elution ofthe… Read More
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