FREE JEE NEET NOTES

2021-11-27 08:50:57 BIOTECH SHORT NOTES

Biotechnology essentially deals with industrial scale production of biopharmaceuticals and biologicals


. The applications of biotechnology include therapeutics, diagnostics, genetically modified crops for agriculture, processed food, bioremediation, waste treatment and energy production.

2. Biotechnology have the following three critical research areas:

(i) To provide the best catalyst in the form of improved organism, usually a microbe or pure enzyme.

(ii) To create optimal conditions through engineering for a catalyst to act.

(iii) Downstream processing technologies to purify the protein/organic compound. Open / Comment

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2021-11-26 19:26:04 BIOTECH SHORT NOTES

Biotechnology essentially deals with industrial scale production of biopharmaceuticals and biologicals


. The applications of biotechnology include therapeutics, diagnostics, genetically modified crops for agriculture, processed food, bioremediation, waste treatment and energy production.

2. Biotechnology have the following three critical research areas:

(i) To provide the best catalyst in the form of improved organism, usually a microbe or pure enzyme.

(ii) To create optimal conditions through engineering for a catalyst to act.

(iii) Downstream processing technologies to purify the protein/organic compound. Open / Comment

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2021-11-26 16:17:38 Revision Notes on Inheritance and Variation


Numerical aberrations of chromosomes:
Each species has a characteristic number of chromosome. Variations or numerical changes in chromosomes (Heteroploidy) can be mainly of two types:

(1) Euploidy: The somatic chromosome number in euploids is the exact multiple of basic haploid number. In euploidy an organism acquires an additional set of chromosomes over and above the diploid complement.

(a) Monoploidy or haploidy: Monoploids possess only one set or single basic set of chromosomes. Haploids on the other hand have half the somatic chromosome number. In diploid organisms monoploids and haploids are identical while in a tetra-or hexaploid with 4n or 6n chromosomes the haploids will possess 2n or 3n chromosome whereas its monoploid will possess only one set (n) of chromosome.
(b) Diploidy: The common chromosome number in the somatic cells of plants and animals.
(c) Polyploidy: Organism with more than two sets of chromosomes are known as polyploids. It may be triploid with three sets of chromosomes (3n) or tetraploid with four sets of chromosome (4n) and so on.

(2) Aneuploidy: Aneuploidy is the term applied for the chromosomal mutations involving only a part of a set, i.e., loss (hypoploidy) or addition (hyperploidy) of one or more chromosomes. Aneuploidy may result from non disjunction of chromosome during cell division.
(a) Monosomy: Diploid organism that are missing one chromosome of a single pair with genomic formula 2n – 1. Monosomics can form two kinds of gametes, (n) and (n –1).
(b) Nullisomy: An organism that has lost a chromsome pair is nullisomic. The result is usually lethal to diploids (2n – 2).
(c) Trisomy: Diploids which have extra chromosome represented by the chromosomal formula 2n + 1. One of the pairs of chromosomes has an extra member, so that a trivalent may be formed during meiotic prophase.
(d) Tetrasomy: In tetrasomic individual particular chromosome of the haploid set is represented four times in a diploid chromosomal complement. The general chromosomal formula for tetrasomics is 2n + 2 rather than 2n + 1+ 1. The formula 2n + 1 + 1 represents a double trisomic.

Types of aneuploidy: Aneuploidy may be of following types on the basis of chromosomes involved in non disjunction.

(a) Aneuploidy involving non-disjunction in sex chromosomes: This kind of aneuploidy is brought about due to non-disjunction in sex chromosomes. It may lead to following types of syndromes:

(1) Turner’s syndrome: Such persons are monosomic for sex chromosomes i.e. possess only one X and no Y chromosome (XO). In other words they have chromosome number 2n – 1 = 45. They are phenotypic females but are sterile because they have under developed reproductive organs. They are dwarf about 4 feet 10 inches and are flat chested with wide spread nipples of mammary glands which never enlarge like those in normal woman. They develop as normal female in childhood but at adolescence their ovaries remain under developed. They lack female hormone estrogen. About one out of every 5,000 female births results in Turner’s syndrome. Open / Comment

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2021-11-26 13:22:22 Important SCIENCE (CHEMISTRY )

. Gases used in welding are ?
– Acetylene & Oxygen

Gases used by sea divers for breathing are ?
– Oxygen & Helium

. Best sources for Vitamin D are?
– Sunlight & Fish liver

Zinc Phosphide is used as?
– Rat Poison

. Fuse wire is made up of
– Lead and Tin

Purest form of Iron is?
– Wrought Iron

Radium is extracted from .
– Pitchblende

Which agent is as ‘seed’ in artificial rain?
– Silver Iodide

. Oxides of metals are .
– Alkaline

During the process of ‘rusting’ , the weight of iron .
–Increases

(metal) is liquid at room temperature.
– Mercury

What is the formula of common salt
– NaCl

. What is the maximum number of electrons that a p-orbital can hold
– 6

. What is used in fire extinguisher
– Sodium bicarbonate

What is the nature of metal oxides
– Basic

. Which gas burns with popping sound
– Hydrogen

Which metal is used for galvanization
– Zinc

. What is the nature of bleaching powder
– Oxidising agent

Which is stored in Kerosene
– Sodium

Phenolphthalein gives which color in acidic medium
– Colorless

Which gas is used in cigarette lighters?
– Butane

. Biogas chiefly contains .
– Methane

. Chemical used as fixer in Photography is .
– Sodium thiosulphate

Aspirin is
– Acetyl Salicylic Acid

is also known as ‘Stranger Gas.’
– Xenon

Natural rubber is a polymer derived from .
– Isoprene Open / Comment

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2021-11-26 12:01:42 𝗦𝗼𝗺𝗲 𝗜𝗺𝗽𝗼𝗿𝘁𝗮𝗻𝘁 𝗤𝘂𝗲𝘀𝘁𝗶𝗼𝗻𝘀

𝗖𝗘𝗟𝗟

𝗧𝗵𝗲 𝘄𝗼𝗿𝗱 𝗰𝗲𝗹𝗹 𝗰𝗮𝗺𝗲 𝗳𝗿𝗼𝗺 𝘁𝗵𝗲 𝗹𝗮𝘁𝗶𝗻 𝘄𝗼𝗿𝗱.
𝗔𝗻𝘀: 𝗖𝗲𝗹𝗹𝘂𝗹𝗮*

𝗔𝗹𝗹 𝗹𝗶𝘃𝗶𝗻𝗴 𝗼𝗿𝗴𝗮𝗻𝗶𝘀𝗺𝘀 𝗮𝗿𝗲 𝗺𝗮𝗱𝗲 𝘂𝗽 𝗼𝗳
𝗔𝗻𝘀: 𝗖𝗲𝗹𝗹*

𝗦𝘁𝘂𝗱𝘆 𝗼𝗳 𝗰𝗲𝗹𝗹 - *𝗖𝘆𝘁𝗼𝗹𝗼𝗴𝘆*

𝗦𝘁𝘂𝗱𝘆 𝗼𝗳 𝘁𝗶𝘀𝘀𝘂𝗲 - *𝗛𝗶𝘀𝘁𝗼𝗹𝗼𝗴𝘆*

𝗧𝗵𝗲 𝗽𝗵𝘆𝘀𝗶𝗰𝗮𝗹 𝘂𝗻𝗶𝘁 𝗼𝗳 𝗹𝗶𝗳𝗲
𝗔𝗻𝘀: 𝗣𝗿𝗼𝘁𝗼𝗽𝗹𝗮𝘀𝗺*

𝗪𝗵𝗼 𝗶𝗻𝘃𝗲𝗻𝘁𝗲𝗱 𝘁𝗵𝗲 𝗰𝗲𝗹𝗹?
𝗔𝗻𝘀: 𝗥𝗼𝗯𝗲𝗿𝘁 𝗛𝗼𝗼𝗸 𝗶𝗻 𝟭𝟲𝟲𝟱*

𝗖𝗲𝗹𝗹 𝘁𝗵𝗲𝗼𝗿𝘆 𝘄𝗮𝘀 𝗽𝗿𝗼𝗽𝗼𝘀𝗲𝗱 𝗯𝘆? 𝗔𝗻𝘀: 𝗠.𝗝. 𝗦𝗰𝗵𝗹𝗲𝗶𝗱𝗲𝗻 𝗮𝗻𝗱 𝗧𝗵𝗲𝗼𝗱𝗼𝗿 𝗦𝗰𝗵𝘄𝗮𝗻𝗻 (𝟭𝟴𝟯𝟵)*

𝗦𝗰𝗶𝗲𝗻𝘁𝗶𝘀𝘁 𝘄𝗵𝗼 𝗼𝗯𝘀𝗲𝗿𝘃𝗲𝗱 𝗰𝗼𝗿𝗸 𝗰𝗲𝗹𝗹𝘀 𝘂𝗻𝗱𝗲𝗿 𝗮 𝗺𝗶𝗰𝗿𝗼𝘀𝗰𝗼𝗽𝗲?
𝗔𝗻𝘀: 𝗥𝗼𝗯𝗲𝗿𝘁 𝗛𝗼𝗼𝗸*

𝗣𝗹𝗮𝗻𝘁 𝗰𝗲𝗹𝗹 𝘄𝗮𝘀 𝗱𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝗲𝗱 𝗯𝘆?
𝗔𝗻𝘀: 𝗥𝗼𝗯𝗲𝗿𝘁 𝗛𝗼𝗼𝗸*

𝗧𝗵𝗲 𝘁𝗲𝗿𝗺 𝗽𝗿𝗼𝘁𝗼𝗽𝗹𝗮𝘀𝗺 𝘄𝗮𝘀 𝗰𝗼𝗶𝗻𝗲𝗱 𝗯𝘆 𝟯.𝗘. 𝗣𝘂𝗿𝗸𝗶𝗻𝗷𝗲 𝗦𝗰𝗶𝗲𝗻𝘁𝗶𝘀𝘁 𝘄𝗵𝗼 𝗰𝗮𝗹𝗹𝗲𝗱 𝗽𝗿𝗼𝘁𝗼𝗽𝗹𝗮𝘀𝗺 𝗮𝘀 𝘁𝗵𝗲 𝗽𝗵𝘆𝘀𝗶𝗰𝗮𝗹 𝗯𝗮𝘀𝗶𝘀 𝗼𝗳 𝗹𝗶𝗳𝗲 𝗧.𝗛. 𝗛𝘂𝘅𝗹𝗲𝘆

𝗟𝗮𝗿𝗴𝗲𝘀𝘁 𝗰𝗲𝗹𝗹
𝗔𝗻𝘀: 𝗢𝘀𝘁𝗿𝗶𝗰𝗵'𝘀 𝗲𝗴𝗴*

𝗦𝗺𝗮𝗹𝗹𝗲𝘀𝘁 𝗰𝗲𝗹𝗹?
𝗔𝗻𝘀: 𝗠𝘆𝗰𝗼𝗽𝗹𝗮𝘀𝗺𝗮*

𝗢𝗿𝗴𝗮𝗻𝗶𝘀𝗺𝘀 𝗸𝗻𝗼𝘄𝗻 𝗮𝘀 𝗽𝗹𝗲𝘂𝗿𝗼 𝗽𝗻𝗲𝘂𝗺𝗼𝗻𝗶𝗮 𝗹𝗶𝗸𝗲 𝗼𝗿𝗴𝗮𝗻𝗶𝘀𝗺 (𝗣𝗣𝗟𝗢)?
𝗔𝗻𝘀: 𝗠𝘆𝗰𝗼𝗽𝗹𝗮𝘀𝗺𝗮*

𝗦𝗺𝗮𝗹𝗹𝗲𝘀𝘁 𝗰𝗲𝗹𝗹 𝗶𝗻 𝘁𝗵𝗲 𝗵𝘂𝗺𝗮𝗻 𝗯𝗼𝗱𝘆?
𝗔𝗻𝘀: 𝗦𝗽𝗲𝗿𝗺*

𝗟𝗮𝗿𝗴𝗲𝘀𝘁 𝗰𝗲𝗹𝗹 𝗶𝗻 𝗵𝘂𝗺𝗮𝗻 𝗯𝗼𝗱𝘆?
𝗔𝗻𝘀: 𝗢𝘃𝘂𝗺*

𝗟𝗼𝗻𝗴𝗲𝘀𝘁 𝗰𝗲𝗹𝗹 𝗶𝗻 𝗵𝘂𝗺𝗮𝗻 𝗯𝗼𝗱𝘆?
𝗔𝗻𝘀: 𝗡𝗲𝘂𝗿𝗼𝗻*

𝗣𝗼𝘄𝗲𝗿 𝗵𝗼𝘂𝘀𝗲 𝗼𝗳 𝗮 𝗰𝗲𝗹𝗹?
𝗔𝗻𝘀: 𝗠𝗶𝘁𝗼𝗰𝗵𝗼𝗻𝗱𝗿𝗶𝗮*

𝗕𝗿𝗮𝗶𝗻 𝗼𝗳 𝘁𝗵𝗲 𝗰𝗲𝗹𝗹?
𝗔𝗻𝘀: 𝗡𝘂𝗰𝗹𝗲𝘂𝘀*

𝗞𝗶𝘁𝗰𝗵𝗲𝗻 𝗼𝗳 𝘁𝗵𝗲 𝗰𝗲𝗹𝗹?
𝗔𝗻𝘀: 𝗖𝗵𝗹𝗼𝗿𝗼𝗽𝗹𝗮𝘀𝘁*

𝗘𝗻𝗲𝗿𝗴𝘆 𝗖𝘂𝗿𝗿𝗲𝗻𝗰𝘆 𝗼𝗳 𝘁𝗵𝗲 𝗰𝗲𝗹𝗹?
𝗔𝗻𝘀: 𝗔𝗧𝗣*

𝗦𝘂𝗶𝗰𝗶𝗱𝗮𝗹 𝗯𝗮𝗴?
𝗔𝗻𝘀: 𝗟𝘆𝘀𝗼𝘀𝗼𝗺𝗲𝘀*

𝗧𝗿𝗮𝗳𝗳𝗶𝗰 𝗣𝗼𝗹𝗶𝗰𝗲 𝗼𝗳 𝘁𝗵𝗲 𝗰𝗲𝗹𝗹?
𝗔𝗻𝘀: 𝗚𝗼𝗹𝗴𝗶𝗯𝗼𝗱𝗶𝗲𝘀*

𝗦𝗸𝗲𝗹𝗲𝘁𝗮𝗹 𝘀𝘆𝘀𝘁𝗲𝗺 𝗼𝗳 𝘁𝗵𝗲 𝗰𝗲𝗹𝗹?
𝗔𝗻𝘀: 𝗘𝗻𝗱𝗼𝗽𝗹𝗮𝘀𝗺𝗶𝗰 𝗿𝗲𝘁𝗶𝗰𝘂𝗹𝘂𝗺*

𝗧𝗵𝗲 𝗰𝗲𝗹𝗹 𝗵𝗮𝘃𝗶𝗻𝗴 𝗺𝗼𝘀𝘁 𝗹𝗶𝗳𝗲 𝘀𝗽𝗮𝗻 𝗶𝗻 𝗵𝘂𝗺𝗮𝗻 𝗯𝗼𝗱𝘆?
𝗔𝗻𝘀: 𝗥𝗕𝗖*

𝗖𝘆𝘁𝗼𝗽𝗹𝗮𝘀𝗺 𝗮𝗻𝗱 𝗡𝘂𝗰𝗹𝗲𝘂𝘀 𝗮𝗿𝗲 𝗶𝗻𝗰𝗹𝘂𝗱𝗲𝗱 𝗶𝗻?
𝗔𝗻𝘀: 𝗣𝗿𝗼𝘁𝗼𝗽𝗹𝗮𝘀𝗺*

𝗧𝗵𝗲 𝗰𝗲𝗹𝗹 𝗼𝗿𝗴𝗮𝗻𝗲𝗹𝗹𝗲 𝗸𝗻𝗼𝘄𝗻 𝗮𝘀 𝗽𝗿𝗼𝘁𝗲𝗶𝗻 𝗳𝗮𝗰𝘁𝗼𝗿𝘆?
𝗔𝗻𝘀: 𝗥𝗶𝗯𝗼𝘀𝗼𝗺𝗲*

𝗧𝗵𝗲 𝗼𝗿𝗴𝗮𝗻𝗲𝗹𝗹𝗲 𝗶𝗻 𝘁𝗵𝗲 𝘀𝗶𝘁𝗲 𝗼𝗳 𝗽𝗿𝗼𝘁𝗲𝗶𝗻 𝘀𝘆𝗻𝘁𝗵𝗲𝘀𝗶𝘀?
𝗔𝗻𝘀: 𝗥𝗶𝗯𝗼𝘀𝗼𝗺𝗲*

𝗥𝗶𝗯𝗼𝘀𝗼𝗺𝗲 𝗵𝗮𝘀 𝗶𝘁𝘀 𝗼𝘄𝗻?
𝗔𝗻𝘀: 𝗥𝗡𝗔*

𝗧𝘄𝗼 𝘁𝘆𝗽𝗲𝘀 𝗼𝗳 𝗮𝗰𝗶𝗱𝘀 𝗽𝗿𝗲𝘀𝗲𝗻𝘁 𝗶𝗻 𝗰𝗲𝗹𝗹?
𝗔𝗻𝘀: 𝗗𝗡𝗔 𝗮𝗻𝗱 𝗥𝗡𝗔*

𝗧𝗵𝗲 𝗯𝗮𝘀𝗶𝗰 𝘂𝗻𝗶𝘁 𝗼𝗳 𝗰𝗵𝗿𝗼𝗺𝗼𝘀𝗼𝗺𝗲?
𝗔𝗻𝘀: 𝗗𝗡𝗔*

𝗧𝗵𝗲 𝗳𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝗮𝗹 𝘂𝗻𝗶𝘁 𝗼𝗳 𝗗𝗡𝗔?
𝗔𝗻𝘀: 𝗚𝗲𝗻𝗲𝘀*

𝗙𝘂𝗻𝗰𝘁𝗶𝗼𝗻 𝗼𝗳 𝗗𝗡𝗔?
𝗔𝗻𝘀: 𝗧𝗿𝗮𝗻𝘀𝗺𝗶𝘀𝘀𝗶𝗼𝗻 𝗼𝗳 𝗵𝗲𝗿𝗲𝗱𝗶𝘁𝗮𝗿𝘆 𝘁𝗿𝗮𝗶𝘁𝘀*

𝗙𝘂𝗻𝗰𝘁𝗶𝗼𝗻 𝗼𝗳 𝗥𝗡𝗔?
𝗔𝗻𝘀: 𝗣𝗿𝗼𝘁𝗲𝗶𝗻 𝘀𝘆𝗻𝘁𝗵𝗲𝘀𝗶𝘀*

𝗘𝗮𝗰𝗵 𝗰𝗵𝗿𝗼𝗺𝗼𝘀𝗼𝗺𝗲 𝗵𝗮𝘀?
𝗔𝗻𝘀: 𝗔 𝗽𝗮𝗶𝗿 𝗼𝗳 𝗗𝗡𝗔*
𝗗𝗡𝗔 𝘀𝘂𝗴𝗮𝗿 𝗶𝘀 𝗰𝗮𝗹𝗹𝗲𝗱?
𝗔𝗻𝘀: 𝗗𝗲𝗼𝘅𝘆𝗿𝗶𝗯𝗼𝘀𝗲*

𝗧𝗵𝗲 𝗻𝗶𝘁𝗿𝗼𝗴𝗲𝗻 𝗯𝗮𝘀𝗲𝘀 𝗶𝗻 𝗗𝗡𝗔?
𝗔𝗻𝘀: 𝗔𝗱𝗲𝗻𝗶𝗻𝗲, 𝗚𝘂𝗮𝗻𝗶𝗻𝗲, 𝗧𝗵𝘆𝗺𝗶𝗻𝗲, 𝗖𝘆𝘁𝗼𝘀𝗶𝗻𝗲*

𝗧𝗵𝗲 𝗥𝗡𝗔 𝘀𝘂𝗴𝗮𝗿?
𝗔𝗻𝘀: 𝗥𝗶𝗯𝗼𝘀𝗲*

𝗧𝗵𝗲 𝗻𝗶𝘁𝗿𝗼𝗴𝗲𝗻 𝗯𝗮𝘀𝗲𝘀 𝗶𝗻 𝗥𝗡𝗔?
𝗔𝗻𝘀 : 𝗔𝗱𝗲𝗻𝗶𝗻𝗲, 𝗨𝗿𝗮𝗰𝗶𝗹, 𝗖𝘆𝘁𝗼𝘀𝗶𝗻𝗲 𝗮𝗻𝗱 𝗚𝘂𝗮𝗻𝗶𝗻𝗲*

𝗧𝗵𝗲 𝗱𝗼𝘂𝗯𝗹𝗲 𝗵𝗲𝗹𝗶𝗰𝗮𝗹 𝗺𝗼𝗱𝗲𝗹 𝗼𝗳 𝗗𝗡𝗔 𝘄𝗮𝘀 𝗱𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝗲𝗱 𝗯𝘆?
𝗔𝗻𝘀: 𝗝𝗮𝗺𝗲𝘀 𝗪𝗮𝘁𝘀𝗼𝗻 𝗮𝗻𝗱 𝗙𝗿𝗮𝗻𝗰𝗶𝘀 𝗖𝗿𝗶𝗰𝗸*

𝗧𝗵𝗲 𝗲𝗻𝘇𝘆𝗺𝗲 𝗽𝗿𝗲𝘀𝗲𝗻𝘁 𝗶𝗻 𝗹𝘆𝘀𝗼𝘀𝗼𝗺𝗲?
𝗔𝗻𝘀: 𝗛𝘆𝗱𝗿𝗼𝗹𝘆𝘁𝗶𝗰 𝗲𝗻𝘇𝘆𝗺𝗲*

𝗟𝘆𝘀𝗼𝘀𝗼𝗺𝗲 𝘄𝗮𝘀 𝗱𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝗲𝗱 𝗯𝘆?
𝗔𝗻𝘀: 𝗖𝗵𝗿𝗶𝘀𝘁𝗶𝗼𝗻 𝗱𝗲 𝗗𝘂𝘃𝗲 (𝟭𝟵𝟱𝟱)*

𝗖𝗼𝗺𝗽𝗼𝘂𝗻𝗱𝘀 𝗲𝗻𝘁𝗲𝗿 𝘁𝗵𝗲 𝗰𝗲𝗹𝗹 𝘁𝗵𝗿𝗼𝘂𝗴𝗵?
𝗔𝗻𝘀: 𝗘𝗻𝗱𝗼𝗽𝗹𝗮𝘀𝗺𝗶𝗰 𝗿𝗲𝘁𝗶𝗰𝘂𝗹𝘂𝗺* Open / Comment

2021-11-26 09:08:03 *Double dhamaka week*

*Dhamaka No 1:* Ask 1 doubt and stand a chance to a Free SURPRISE BOX everyday

*Dhamaka No 2:* Ask and watch 10 doubts and definitely WIN Free Unacademy PLUS Subscription

Validity till 28th Nov
Code: AAD10
Links: 
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