SYSTEMATIC PREPARATION FOR CSIR-NET (LIFE SCIENCE)

EXAM TUR A KAN IN PREPARE HIAN UNIT ZAWNG ZAWNG ZIR VEK A NGAI LEMLOA. UNIT 7-8 BEL TAK A KAN THIAM CHUAN A TAWK. KAN UNIT TUI LOH ZAWNG EMAW THIAM THEIHLOH ZAWNG DEUH A AWM CHUAN CHUAN OMIT MAI KHA A PAWI LEMLO ANG  SYLLABUS DOWNLOAD NA https://csirhrdg.res.in/Home/Index/1/InPage/37/26           Unit 1 Biochemistry (He unit hi zir chu a tha, nimahsela, unit 1 atang hian tan loh tur, zir tui a har thin. Tin, concept based in zawhna a chhuak thin bawk.) Molecules and interaction pH and buffer Bioenergetics Biomolecules Enzymes Metabolism Unit 2 Cell Biology (He unit hi a scoring.) Membrane transport Protein sorting Cytoskeleton Genome organisation Cell cycle Bacterial growth Unit 3 Molecular Biology (He unit pawh hi thiam ngei ngei a tha) Replication Dna repair Transcription Post-transcriptional modification Gene regulation Unit 4 Cell signalling (Zoology core tan a zia deuh ang.) Cell-cell interaction Signal receptor Cance...

Part-A mark hmu tha turin Math thiam ve deuh a ngai a, rilru chak ve deuh pawh a ngai. Part-A-ah hian ka weak ve lutuka hemi playlist 2 bak hi ka zirlo. Tin, Part-A hi chhan teuh a ngaiin ka hrelo, question 5-8 a dik chiang ngei tih kan hriat chuan a tawk viau. 1. Quantitative Apptitude:   https://youtube.com/playlist?list=PLpyc33gOcbVA4qXMoQ5vmhefTruk5t9lt&si=3W8Z3tAXzoFdx9MG 2. Logical Reasoning :  https://youtube.com/playlist?list=PLpyc33gOcbVADMKqylI__O_O_RMeHTyNK&si=mH5_9ne7ME4sO5T0

Heng playlist-te hi exam oriented material atan a pawimawh em em a, notebook a ziah chhuah vek tur.  1. Developmental Biology https://youtube.com/playlist?list=PLwauFtJXcBkeCred1QHGGlRMlDngA7WXI&si=RkoxcfqhzuDp_otk 2. Ecology  https://youtube.com/playlist?list=PLwauFtJXcBkcqmtFirZ8al4XnCs794OzT&si=mOS_1TuimiJvqIEQ 3. Immunology https://youtube.com/playlist?list=PLwauFtJXcBke42qY9xjt2afWlXTOXkAoR&si=pCrFuzdNyxZbGNb2 4. Plant physiology https://youtube.com/playlist?list=PLwauFtJXcBkffmjEkWB6sX1wqOHxT3owm&si=CtETRDNcxZ4pnPjO 5. Evolution https://youtube.com/playlist?list=PLwauFtJXcBkey0D8LlzZKjaUKYOMjAGWN&si=28qL0E0NjfXOJW6W

A. Pathfinder hi chu lei ngei ngei turah ka ngai, Mind maps hi part-b atan a tangkai a, by heart vek tur. Question set bu hian Unit tin atang khawi topic hi nge pawimawh tih idea min neih tir a, lei ngei ngei tha ka ti. B. Lehninger te, Taiz and Zeiger etc., tiang lehkhabu tha hi kan chhiar thin chuan NET exam kan buai ka ringlo, science career kal zel kan tum phei chuan a pui viau ang che (hardcopy chu a to viau maithei) .   1. Pathfinder set (ALL YOU NEED FOR A COMPETITIVE EXAM OR SOLEY FOR THE PURPOSE OF GETTING THROUGH THE EXAM) https://www.amazon.in/Pathfinder-Academy-CSIR-JRF-NET-Sciences-Ecology/dp/B07FXPKMLS/ref=sr_1_4?crid=383669WJSW3R&keywords=path+finder+life+science+book+2023&qid=1694928842&sprefix=PATH+FINDER%2Caps%2C270&sr=8-4 2. Csir mind maps (BY-HEART TUR) https://www.amazon.in/Life-Sciences-Important-Revision-Updated/dp/B08X4FXRP7/ref=sr_1_2?crid=206XORXHQF3I7&keywords=csir+mind+maps&qid=1694928874&sprefix=csir+mind+maps%2Caps%2C26...

NET THROUGH DUH CHUAN YOUTUBE SHORTS LEH INSTA SHORTS MAI MAI EN LO IN HENG CHANNEL HI EN TAM LA, I TLING MAI ANG  1. Career Ride https://www.youtube.com/@CareerRideOfficial 2. IFAS https://www.youtube.com/@IFASONLINE 3. Shomu's Biology https://www.youtube.com/@shomusbiologyofficial 4. Teaching Pathsahala (Recent videos Hindi a tam mahse english ho zawn tur) https://www.youtube.com/@TEACHINGPATHSHALA

  The human body is made of around 200 types of cells, such as bone cells, blood cells, skin cells, nerve cells, liver cells, etc. These cells make different organs and vary in terms of their structure and function as a different set of genes are expressed in these cells as per the requirement of respective organs. Such as the serum albumin gene which becomes active only in liver cells (hepatocytes). Similarly, the insulin gene expresses itself only in the beta cells of the pancreas. Besides this, some genes are present in all cells of the human body but some of them express themselves in kidney cells and some are expressed in liver cells, and more. Genes  can be of different types. Some of gene types that are present in eukaryotes are described below: 1. House Keeping Genes They are also known as  constitutive genes . They constantly express themselves as they are needed to carry out basic cellular functions that occur continuously. In other words, they code for prot...

                                                                                                 Autosomal dominant Dont skip generation Affected parents can have unaffected children Autosomal recessive Skip generation Unaffected parents can have affected children Sex linked dominant Disease never transfer from father to son All daughters of affected father will be affected Sex linked recessive Males are more affected Disease tend to transfer from father to son and mother to daughter https://www.youtube.com/watch?v=bL4JV5Z2jsc

  The development of specialized cell types is called differentiation .These overt changes in cellular biochemistry and function are preceded by a process involving the commitment of the cell to a certain fate. At this point, even though the cell or tissue does not appear phenotypically different from its uncommitted state, its developmental fate has become restricted. The process of commitment can be divided into two stages (Harrison 1933; Slack 1991). The first stage is a labile phase called specification . The fate of a cell or a tissue is said to be specified when it is capable of differentiating autonomously when placed in a neutral environment such as a petri dish or test tube. (The environment is neutral with respect to the developmental pathway.) At this stage, the commitment is still capable of being reversed. The second stage of commitment is determination . A cell or tissue is said to be determined when it is capable of differentiating autonomously even when placed ...

  Introduction Blotting is technique in which nucleic acids i.e., RNA and DNA or proteins are transferred onto a specific membrane [ 1 , 2 ]. This membrane may be nitrocellulose PVDF or nylon membrane. This process can be done just after the gel electrophoresis, by transferring the molecules from the gel onto the surface of blotting membrane. But sometimes it can be done by directly transferring the molecules onto the membrane. And then we can visualize these transferring molecules by using staining [ 3 6 ]. Examples: Ethidium bromide, Crystal violet, Safranine and Ossmium tetroxide etc [ 7 , 8 ]. Types of Blotting There are basically 4 types of blotting: Southern blotting Western blotting Northern blotting Eastern blotting 1) Southern blotting Southern blotting is named after Edward M. Southern. This method is used for analysis of DNA sequences. It involves the following steps: Firstly, large weighted DNA is cut into small fragments by using Restriction endonu...

  Molecular marker is identified as genetic marker. Molecular marker is a DNA or gene sequence within a recognized location on a chromosome which is used as identification tool. In the pool of unknown DNA or in a whole chromosome, these molecular markers helps in identification of particular sequence of DNA at particular location. Applications: It plays a crucial role in gene mapping by identifying the position of linked genes in the chromosome which inherited together It also detect any alteration in a sequence of DNA or any genetic oddity. It ascertains genes involved in genetic disorders. It is used to determine different characters in a DNA sequence which is used to distinguish between individuals, populations or species. Different types of genetic polymorphism can be used as Genetic markers. On the basis of polymorphisms detected in the genetic makeup of individuals that may vary in the length of a DNA sequence or in the identity of nucleotides located at specific p...

  HORMONE Abscisic acid : Maintains seed dormancy and winter dormancy closes stomata Auxins : Promote stem elongation, adventitious root initiation, and fruit growth; inhibit axillary bud outgrowth and leaf abscission Brassinosteroids : Promote stem and pollen tube elongation promote vascular tissue differentiation Cytokinins : Inhibit leaf senescence; promote cell division and axillary bud outgrowth; affect root growth Ethylene : Promotes fruit ripening and leaf abscission; inhibits stem elongation and gravitropism Gibberellins : Promote seed germination, stem growth, and fruit development; break winter dormancy: mobilize nutrient reserves in grass seeds Table of Content Functions of Plant Hormones Auxin Hormone Gibberellins Hormone Cytokinins Hormone Abscisic Acid Function Ethylene Plant Hormone What is Plant Hormones? Plants need sunlight, water, oxygen, minerals for their growth and development. These are external factors. Apart from these, there are s...

  Retrogressive evolution is the opposite: its when an organism reduces in complexity or begins to forsake more advanced characteristics in favour of more primitive ones. It's aka devolution. Batesian mimicry is a form of mimicry where a harmless species has evolved to imitate the warning signals of a harmful species directed at a predator of them both. It is named after the English naturalist Henry Walter Bates, after his work on butterflies in the rainforests of Brazil. Mullerian mimicry can be seen in species of butterflies. ... melpomene are two different species of butterflies that exhibit Mullerian mimicry. Both of them have evolved to have mostly black bodies and wings, but they have a similar pattern of red-orange dots and markings on their wings. The term 'gene loss' is used in a broad sense, not only referring to the absence of a gene that is identified when different species are compared but also to any allelic variant carrying a loss-of-function (that is,...

  Dryopithecus africanus Period : 20-25 million years ago (Miocene) Location : Miocene rocks of Africa and Europe Brain size : Large (size not known) Adaptations : Arboreal, ate soft fruits and leaves and semi-erect posture Characteristics : Arms and legs of same length, feet with heels. without brow ridges, knuckle walker Ramapithecus punjabicus Period: 14-15 million years ago (From late Miocene to Pliocene) Location : Pliocene rooks of Shivalik Hills of India Brain size : Unknown Adaptations : Walk erect on its hind feet on ground and lived on fops Characteristics : Small canines and large molars like humans. Ate nuts and seeds Australopithecus africanus Period: 5 million years ago (Pliocene) Location: Pliocene rocks near Tuang in Africa Brain size: 500 cc Adaptations : Bipedal locomotion, omnivorous but mostly vegetar feeding on fruits, vegetables, nuts. seeds and res p ecto climbed trees too. Characteristics : Fully human shaped jaw and broad pelvis. Brow r...

  ANTIBODIES🔱 IgG Most abundant, 65-70% found in blood plasma monomer Produced in primary and secondary, but more abundant in secondary Function: formation of MAC and opsonization, neutralization: binding to any antigen can be passed through the placenta IgA Diamer found in saliva, sweat, mucosal lining of GI tract found in milk lactation IgM either pentamer or monomer Made in primary immune response binding >complement protein > MAC or opsonization IgE Monomer Found in respiratory tract mucosa, urogenital structure, lamina propria, lymphatic tissue, G.I tract mucosa Function: bind to FcEr1-receptor which released hs IgD Y monomer B-cell receptor TYPES OF IMMUNITY Passive Natural: IgG, IgA Artificial : Antivenom, Immunoglobin Active Natural: Infected by pathogen Artificial: Vaccine Barrier Immunity : Skin, physical barrier i immune cells ii. antimicrobial protein iii. shedding of epithelial cells It includes Respirato...

 1. Amoeba sisters https://www.youtube.com/@AmoebaSisters/featured 2. Ninja nerd https://www.youtube.com/@NinjaNerdOfficial 3.  Armando Hasudungan https://www.youtube.com/@armandohasudungan 4.  MEDSimplified https://www.youtube.com/@MEDSimplified 5. Biomed Science https://www.youtube.com/@biomedsessions 6. Crash course Biology https://www.youtube.com/watch?v=QnQe0xW_JY4&list=PL3EED4C1D684D3ADF