Read the given statements and select the correct optionsStatement 1:In...
Recombinant DNA is a form of DNA whose nucleotide sequence has undergone alteration as a result of incorporation of exchange with another DNA strand. In recombinant DNA technology, human genes are often transferred into bacteria or yeast because both bacteria and yeast multiply very fast to form huge population, which expresses the desired gene. By doing so, one can observe the phenotypes of the gene more quickly and in a larger scale than by studying the same traist in humans.
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Read the given statements and select the correct optionsStatement 1:In...
Recombinant DNA Technology and Gene Transfer into Bacteria and Yeast
Statement 1: In recombinant DNA technology, human genes are often transferred into bacteria (prokaryotes) or yeast (eukaryote).
Recombinant DNA technology involves manipulating DNA molecules to create new combinations of genes. This technology allows scientists to transfer genes from one organism to another, including from humans to other organisms. Bacteria and yeast are commonly used as host organisms for gene transfer in recombinant DNA technology due to their ability to quickly reproduce and express the desired gene.
Statement 2: Both bacteria and yeast multiply very fast to form a huge population which expresses the desired gene.
Explanation:
- Bacteria and yeast are both known for their rapid growth and reproduction rates, making them ideal host organisms for gene transfer experiments.
- Bacteria reproduce asexually through a process called binary fission, where one bacterium divides into two identical daughter cells. This rapid reproduction allows for the formation of a large bacterial population in a relatively short amount of time.
- Similarly, yeast can reproduce both sexually and asexually, with asexual reproduction resulting in the formation of daughter cells that are genetically identical to the parent cell. This also leads to the rapid multiplication of yeast cells.
- In recombinant DNA technology, the desired human gene is introduced into the bacterial or yeast cells. These host cells then replicate and pass on the introduced gene to their offspring during the reproduction process.
- As a result, the population of bacteria or yeast cells expressing the desired gene rapidly increases, allowing for the production of large quantities of the gene product (such as a protein) for further study or application.
Conclusion:
Both Statement 1 and Statement 2 are correct, and Statement 2 provides the correct explanation for Statement 1. Bacteria and yeast are commonly used in recombinant DNA technology due to their fast reproduction rates, which leads to a large population of cells expressing the desired gene.