Summary

This document discusses various aspects of biology, including biotechnology, transgenic organisms, and genetic screening. It explores the potential applications and ethical implications of these topics, providing an overview of modern biological advancements for those studying biology in secondary school.

Full Transcript

# 1.5 Biology and your future ## Biotechnology Biotechnology is the use and application of living things and biological processes. Biotechnology includes a very broad range of products, processes, and techniques. As use of microorganisms to make bread and cheese. ### For example, people wrongly...

# 1.5 Biology and your future ## Biotechnology Biotechnology is the use and application of living things and biological processes. Biotechnology includes a very broad range of products, processes, and techniques. As use of microorganisms to make bread and cheese. ### For example, people wrongly convicted of crimes have been freed from prison when DNA testing has shown that their DNA did not match DNA found at crime scenes. Biotechnology has great potential to help solve a variety of modern problems, such as the search for alternative energy sources like the algae. ### All domestic plants and animals are the result of centuries of genetic manipulation through selective breeding. Genetic manipulation can mean the transfer of genetic information from one organism to a very different organism. ## Transgenic Organisms Organisms that have genes from more than one species, or have altered copies of their own genes, are called transgenic organisms. - Transgenic bacteria can make human insulin to treat people with diabetes. - Transgenic sheep and cows can make human antibodies and proteins. - When you hear about genetically modified foods, you are hearing about transgenic organisms. ## Genetically modified foods have many potential benefits: 1. Crop plants are changed to increase the nutrients 2. yield of the plants 3. to resist insects. - Insect-resistant crops could reduce or end the need for chemical pesticides. - However, the long-term effects of genetically modified crops are not fully known. ## Human Genetic Screening - Human genetic screening is the analysis of a person's genes to identify genetic variations. - Genetic screening can indicate whether individuals or their potential offspring may be at risk for certain diseases or genetic disorders. - Genetic screening has the potential for early diagnosis of conditions that can be treated before an illness occurs. - Genetic screening also raises ethical concerns, the greater concern is the possibility that people might use genetic screening to choose the characteristics of their children. ## Thank you!

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