Biology - 0610 CIE

Biotechnology And Genetic Modification

Bayani Gaba-gaba

Bacteria are the workhorses of modern biotechnology. They are tiny, simple and easy to grow, yet they can be persuaded to make complex human proteins like insulin. Why do scientists reach for bacteria again and again rather than plants or animals? The answer lies in how fast they breed and what they carry inside them.

In this short but important lesson you will learn the two features that make bacteria so useful, their rapid reproduction and their ability to make complex molecules, and then the deeper [Supplement] reasons: few ethical concerns about manipulating them, and the small rings of DNA called plasmids that make gene transfer possible.

Manufura

  1. State that bacteria are useful in biotechnology and genetic modification due to their rapid reproduction rate and their ability to make complex molecules
  2. [Supplement] Discuss why bacteria are useful in biotechnology and genetic modification, limited to: (a) few ethical concerns over their manipulation and growth (b) t he presence of plasmids

Takardar Darasi

Almost every later topic in biotechnology, making insulin, penicillin and genetically modified crops, depends on bacteria. Knowing exactly why bacteria are chosen sets up the whole chapter and answers a common exam question in its own right.

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Nazarin Darasi

Barka da kammala darasi akan Biotechnology And Genetic Modification. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.

Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.

Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.

  1. Bacteria are useful in biotechnology partly because they: A. are large B. reproduce rapidly C. cannot make proteins D. have a nucleus Answer: B
  2. A second reason bacteria are useful is that they can: A. make complex molecules such as proteins B. photosynthesise C. live without water D. move quickly Answer: A
  3. A plasmid is a: A. type of protein B. small circular piece of bacterial DNA C. virus D. ribosome Answer: B
  4. [Supplement] One ethical advantage of using bacteria is that: A. they feel pain B. there are few ethical concerns over their manipulation C. they are mammals D. they cannot be grown Answer: B
  5. Plasmids are useful in genetic modification because they: A. kill the bacterium B. act as a vector to carry a gene into the bacterium C. stop reproduction D. remove genes Answer: B

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Akwai a Android, Windows, macOS, da Linux

Akwai a cikin manhajar Green Bridge

Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.

Cikakkiyar bayanan darasi tare da zane-zane
Mataimakiyar koyo da AI
Yi karatu ba tare da intanet ba, a kowane lokaci, a ko'ina
Akwai a Android, Windows, macOS, da Linux

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