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Biotechnology Lec


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[Front]


When did we start growing crops and raising animals to provide stable supply of food and clothing?
[Back]


10 years ago

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What does the term biotechnology signify?
This term signifies the activities relating to biological processes and technologies.
Modern biotechnology operates at? It is modern in the sense that?
It operates at the molecular level of life and is modern in the sense that the applied techniques are mainly to cells and molecules.
Biotechnology can be divided into two, bio and technology. What do these two mean?
Bio means the use of biological processes and technology means to solve problems or make useful products.
Simple definition of biotechnology
It is the commercialization of cell biology
Definition of modern biotechnology according to Convention on Biological Diversity.
Any technological application that uses biological systems, living organisms, or derivatives thereof, to make or modify products for specific use.
Enumerate the two given definitions of modern biotechnology by Codex Alimentarius Commission.
1. In vitro nucleic acid techniques, including recombinant deoxyribonucleic acid (DNA) and the direct injection of nucleic acid into cells or organelles. 2. Fusion of cells beyond the taxonomic family, that overcomes natural physiological reproductive or recombination barriers and that are not techniques used in traditional breeding and selection.
What is the single definition for the term biotechnology developed by Organization of Economic Co-operation and Development?
The application of science and technology to living organisms as well parts, products and models thereof, to alter living or non-living materials for the production of knowledge, goods, and services.
Biotechnology is divided into two fields. What are these and what do they pertain to?
Red biotechnology and green biotechnology. Red signifies medicine while green relates to food.
What does Eugenes mean?
Good in stock; hereditarily endowed with noble qualities.
What is Eugenics?
It is the study of the agencies under social control that may improve or impair the racial qualities of future generations either physically or mentally.
Definition of Eugenics according to Francis Galton.
It is the improvement of humankind through selective breeding, sterilization, and other forms of intervention.
According to Anton van Leeuwenhoek, how small is bacteria
Twenty-five times smaller than the blood cell
This project was established because of Spanish flu
Influenza Genome Sequencing Project
What is chromosome?
Chromosomes are structures containing long sequences of dense, supercoiled DNA.
Gene
A molecular unit of heredity material of a living organism.
How many genes are estimated in a human DNA?
Around 80,000 to 100,000 genes
How long and wide is a DNA?
Around 1.6 metres and one fifth of a millionth of a centimetre wide.
Proteins
Proteins are biologically important macromolecules that act as enzymes, hormones, signal receptors and play many other roles.
What is cell culture technology?
It the process of growing cells outside living organisms.
What is plant cell culture?
It provides an environmentally sound and economically feasible option for obtaining naturally occurring products with therapeutic values. This can be used for production of medicinal and commercial plants.92 Plant cell culture is also an important source of compounds used as flavors, colors and aromas by the food-processing industry.
Give five types of microarrays
DNA microarrays, protein microarrays, tissue microarrays, whole cell microarrays, and small molecules microarrays
What are the two components needed to make biosensors
Recognition element and some mechanism for reading out the recognized element