Biology, 12.02.2020 21:31 Badbpyz7987

Which best describes transduction in bacteria

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Transduction is a process by which DNA is transferred from one bacterium to another by the action of a virus. It is also used to designate the process by which exogenous DNA is introduced into a cell by a viral vector. This is a tool that molecular biologists usually use to introduce a foreign gene in a controlled way into the genome of a recipient cell.

Explanation:

When bacteriophages (viruses that infect bacteria) infect a bacterial cell, their normal mode of reproduction consists in capturing and using the machinery of replication, transcription, and translation of the recipient bacteria cell to produce large numbers of virons, or produce particles. viral, including viral DNA or RNA and protein coat.

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this protocol provides a detailed procedure for nucleoprotein extraction from cultured cells and tissues in an efficient manner.

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answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.

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