Answer:
1. Restriction enzymes
2. DNA ligase
3. ?
4. ?
5. ?
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1. Identify your gene of interest (the one that produces human insulin in this case).
2. Isolate it from the rest of the DNA via restriction enzymes. Also extract a plasmid from a bacterium.
3. Use the restriction enzymes on the bacterium as well.
4. Join the cut plasmid and your gene of interest via mixing them and with the help of DNA ligase.
5. Insert the recombinant plasmid into a host cell. The plasmids are taken up by the bacterium by transformation.
6. Select for cells that have been transformed by linking the gene of interest to an antibiotic resistance gene or a report gene.
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1. Agricultural Uses, we can insert disease-resistant genes into plants for example
2. We can amplify the DNA found at a crime scene to more easily trace down suspects
3. Medical Uses; we can more easily detect diseases and test for viruses (via amplification of blood samples).
Climatic variations and Human activities , i don’t know the third reason ..
The correct option is A ie the process whereby non-sister chromatids exchange genetic material
- Between prophase I and metaphase I, a process known as crossing over occurs in which two homologous non-sister chromatids join up and exchange various pieces of genetic material to create two recombinant chromosome sister chromatids.
- When genetic material is switched between two chromosomes, this process is known as crossing over.
- It is in charge of causing genetic variation among members of a species.
- Only the reproductive cells known as gametes undergo this process.
- The steps involved in crossing over are as follows:
1) Synapsis.
2) Chromosome duplication
3) Crossing over.
4) Terminalizataion.
Learn more about crossing over here :
brainly.com/question/20662534
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Answer:
True
Explanation:
Biomes such as the Amazon have so many different species we don't know all of them.