Important Questions Flash cards Hover over the box below: 1) What are Stem Cells? 1) Stem Cells are undifferentiated or unspecialised mass of cells. The stem cells are the cells of variable potency 2) What are two types of stem cells? 2) Embryonic stem cells can be extracted and cultured from the early embryos. These cells are derived from the inner cell mass of blastocyst. These cells can be developed into any cell in the body Adult stem cell or somatic cell : are found in the neonatal (new born) and adults. They have the ability to divide and give rise to specific cell types. Sources of adult stem cells are amniotic fluid, umbilical cord and bone marrow. 3) How are stem cells useful in regenerative process? 3) Sometimes cells tissues and organs in the body may permanently damaged or lost due to genetic conditions or di...

Genetic Engineering Important Short Points 1) Genetic Engineering Genetic Engineering is the manipulation and transfer of genes from one organism to another organism to create a new DNA called as recombinant DNA technology 2) Basic requirements of genetic engineering a)Presence of plasmid in bacteria that can undergo replication independently along with chromosomal DNA b)Restriction enzymes cut or break DNA at specific sites and are also called as molecular scissors c)DNA ligasses are the enzymes which helps in joining the broken DNA fragments 3) Gene Cloning A Clone means to make a genetically exact copy of an organism The basic steps involved in gene cloning :- i) Isolation of desired DNA fragments by using restriction enzymes ii) Insertion of the DNA fragment into a suitable vector (plasmid) to make rDNA iii) Transfer of rDNA into bacterial host cells (Transformation) iv) Selection and multiplication of recom...

Breeding and Biotechnology PPT https://docs.google.com/presentation/d/e/2PACX-1vSzQqwm1AkxrnlIfeGRMO1WnjGkrPiJPYCdJ--72Ln9R21H8fZDoij5PF02sqiJoDAAN8xLjv2cn6xs/pub?start=true&loop=true&delayms=30000

May 24-2020 Important Two Mark Questions2 Breeding and Biotechnology Two Mark முக்கியமான இரண்டு மதிப்பெண் கேள்விகள் மற்றும் பதில்கள் 1) What is Gene Therapy Gene therapy refers to the replacement of defective gene by the direct tranfer of functional genes into humans to treat genetic disease or disorder 2) What is a Clone ? A group of plants produced from a single plant through vegetative or asexual reproduction are called Clone 3) What is polyploid ? An organism have more than two sets of chromosomes are called polypoid 4) Define Inbreeding Inbreeding refers to the mating of closely related animals within the same breed for about 4-6 generations 5) What is plasmid? The small circular double stranded DNA molecule found in the cytoplasm of bacterial cell and separated from chromoosomal DNA is called a plasmid. It acts as a vector in genetic engineering 6) Define a pureline? Pureline is "the progeny of a single i...

Test Number-4 Students asked to select correct option each correct answer will score one point மாணவர்கள் மிகவும் சரியான பதிலை தேர்தெடுக்கவும் Breeding and Biotechonlogy test-4 1) .............. is a group of animals of common orgin within a species a) Breed b) Genus c) Family d) Order 2) When breeding takes place between animals of the same breed, it is called ............. a) Out breeding b) inbreeding c) Cross Breeding d)None 3) The cross between different breeds is called ............... a) Out breeding b) inbreeding c) Crossbreeding d) None 4) ........... helps in the accumulation of superior genes and elimination of genes which are undesirable? a) Cross Breeding b) Out breeding c) Inbreeding d) None 5) ............................ is a New breed of sheep developed in Punjab by crossing Bikaneriewes and Australian Marino rams a) Brown swiss. b) Sahiwal c)Karan swiss d)Hissardale 6) Mule is an example for .............

Breeding and Biotechonlogy test- 3 1) Seedless watermelons (3n) and bananas (3n) are the achievements of ............. breeding a)Mutation b)Polyploidy c)Hybridization Selection 2) ................. is a triploid variety of tea with larger shoots and drought tolerance a)TV-29 b)TV-39 c)A4 d)Triticale 3) ................ is a hybrid of Wheat and rye a)Raphanobrassica b)Pusa Gaurav c)Sharbati Sonoara d)Triticale 4) Raphano brassica is an ............ by clochine treatment a)Auto tetraploid b)Allotetraploid c)HexPusa Sem d)Diploid 5) ........... is defiend ad the sudden heritable change in the nucleotide sequence of DNA in an organism a)Selection b)Polyploidy. c)Mutation d)Hybridization 6) .............. garden is a concept popularised after world war II for the peaceful use of atomic energy for crop improvement? a)Alpha b)Beta c)Gamma d)None 7) In induced mutation breeding where radioactive soureces particularly gamma rays from ......

1) ........... is the process of increasing food production? a) Silver revolution b) Green Revolution c) White Revolution Blue Revolution 2) Who is called the "Father of green revolution ? a) Dr. M.S. Swaminathan b) Dr. Norman E. Borlag c) Dr. G. Nammalvar d) None 3) Who is called the Father of Indian Green Revolution ? a) Dr. Norman E. Brolaug b)Dr. G. Nammalvar c)Dr. M.S. Swaminathan d)Dr. Jan Wilmut 4) Find the odd one out? a) Himgri b) Pusa Graurav. c) Pusa Sem d) Pusa Sem 3 5) Protina, Shakti and Rathan are .................... rich maize hybrids? a) Lusin b) Lysine. c) Valine d) Cytonine 6) Who founded NEFFFRGFST To create public awareness about the benefits of organic farming? a) G. Nammalvar b) Dr. M.S. Sawaminathan c) Dr. Ian wilmut d) None 7) Sonalika, Kayan sona are semi darwf varieties of weat from .................... a) America b) Indonesia c) Mexico d) China 8) .......................... is the scientific ...

18-05-2020 Unit : 20 - Breeding and Biotechnology  1) ..........was an exotic species introduced from China? a) Phaseolus Mungo b) Raphano brassica c) Sharbti sonora d) Tricicuk durm 2) TMV-2 and AK-10 Groundnut varieties are examples for .................. selection a) Clonal Selection b) Pureline Selection c) Mass selection d) None. 3) ............... is the " Progeny of a single individual obtained by self breeding " This is also called as individual selection? a) Mass Selection b) Pureline selection c) Clonal selection d) Poly ploidy breeding 4) Selection of desirable clones from the mixed population of vegetatively propagated crop is called ................... a) Clonal selection. b) Pure line selection. c) Mass selection d)None. 5) ..................... is one of the oldest methods of plant breeding in which individual plants or group of plants are sorted out from mixed population a) Poly Ploidy. b) Mutation B...

Plant Breeding important 2 Mark Questions Click on the buttons to open the collapsible content. What is Plant Breeding Plant breeding is the art of developing economically important plants with superior quality Define Animal husbandry Animal husbandry involves the breeding of animals. It aims at improving the genotypes of animals to make them more useful to the welfare of mankind. What is Green Revolution Green Revolution is the process of increasing food production through high yielding crop and modern agricultural techniques in underdeveloped and developing nations Dr. Norman E. Borlaug , an American agronomist the "Father of the Green Revolution". He revived the Nobel Peace Prize in 1970 What is Biofortification Biofortification is the scientific process of developing crop plants enriched with high levels of desirable nutrients like vitamins, proteins and minerals. Describe the Plant breeding for disease resistance Plant diseases ...

Breeding and Biotechnology PPT 15-05-2020 https://docs.google.com/presentation/d/e/2PACX-1vSfFU4J7QsmVmNVboA-EQZYMYJuWmBnza1de_XB4ZZciRvXa21ZnLktobkOoQThAywcbzq6p6ZqaGjq/pub?start=true&loop=true&delayms=30000

Nervous System 12-05-2020 1) The sensory organs contain ........................................................ a) Uni polar b) Bipolar neuron c) Multi polar Neuron d) Medullated neuron 2) One of the following is a part of the brain stem pick it out. a) Fore brain and Mid brain b) Mid brain and hind brain c) Fore brain and hind brain     d) Fore brain and spinal cord 3) Spinal nerves are ................................ a) Sensory nerves b) Motor nerves c) Mixed nerves d) Innervating the brain 4) An endocrine gland which is both exocrine and endocrine is the ................................... a) Pancreas b) Pituitary c) Thyroid d) Adrenal 5) The "T" lymphocytes are differentiated to resist infection in the ................................... a) Parathyroid gland b) Lymph glad c) Thymus gland d) adrenal gland 6) Neurotransmitters are released at the synapse by ............................ a) Tips of Dendrites b) Syn...

Radio Carbon PPT 03-05-2020 https://docs.google.com/presentation/d/e/2PACX-1vSX9unrQXkGK3a76tasVkahATMHV3KHCe8TAH5mX8Jqow_XKYvYQtECOz59zNSa5hQ-_rkUN-nnq25g/pub?start=true&loop=true&delayms=30000

Fossilization 01-05-2020 https://docs.google.com/presentation/d/e/2PACX-1vTaVvTKcwnDh1QzvHpFMkKHrF5SCywRnFMAgFgBYv7gHubckEe8MZZ1goQVAdoja2yYMJzKujDYdjt9/pub?start=true&loop=true&delayms=30000