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Introduction to Genetic Engineering with Abhinav Raj
Instructors: Abhinav Raj | 2 sections * 12 lectures * 33m total length
Video: MP4 1280x720 44 KHz | English + Sub | Updated 1/2022 | Size: 354.453 MB
Genetic engineering basics with key terms and visual examples.
What you'll learn
Genetic Engineering Overview
Genetic Engineering Key terms
Genetic Engineering illustrations and visualizations
Genetic Engineering and molecular Biology .
Requirements
Beginner-friendly
Description
Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms.
Genetic processes work in combination with an organism's environment and experiences to influence development and behavior, often referred to as nature versus nurture. The intracellular or extracellular environment of a living cell or organism may switch gene transcription on or off. A classic example is two seeds of genetically identical corn, one placed in a temperate climate and one in an arid climate (lacking sufficient waterfall or rain). While the average height of the two corn stalks may be genetically determined to be equal, the one in the arid climate only grows to half the height of the one in the temperate climate due to lack of water and nutrients in its environment.
Molecular genetics
DNA, the molecular basis for biological inheritance. Each strand of DNA is a chain of nucleotides, matching each other in the center to form what look like rungs on a twisted ladder.
Although genes were known to exist on chromosomes, chromosomes are composed of both protein and DNA, and scientists did not know which of the two is responsible for inheritance. In 1928, Frederick Griffith discovered the phenomenon of transformation (see Griffith's experiment): dead bacteria could transfer genetic material to "transform" other still-living bacteria. Sixteen years later, in 1944, the Avery-MacLeod-McCarty experiment identified DNA as the molecule responsible for transformation.The role of the nucleus as the repository of genetic information in eukaryotes had been established by Hämmerling in 1943 in his work on the single celled alga Acetabularia.The Hershey-Chase experiment in 1952 confirmed that DNA (rather than protein) is the genetic material of the viruses that infect bacteria, providing further evidence that DNA is the molecule responsible for inheritance.
James Watson and Francis Crick determined the structure of DNA in 1953, using the X-ray crystallography work of Rosalind Franklin and Maurice Wilkins that indicated DNA has a helical structure (i.e., shaped like a corkscrew).Their double-helix model had two strands of DNA with the nucleotides pointing inward, each matching a complementary nucleotide on the other strand to form what look like rungs on a twisted ladder.
Who this course is for
Open-learning students
Course cont
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