Your answer is b Changes in the tempurature and salinity of water
Answer:
C. RNA polymerases.
Explanation:
Bacteria has a primitive type of RNA polymerase while archaeal RNA ploymerase is more advanced and complex than that of bacterial. The structure of archaeal RNA ploymerase has more resemblance with RNA polymerase II of eukaryotes. The RNA polymerase of bacteria requires sigma factor for transcription initiation whereas the RNA ploymerase of archaea requires transcription factors for transcription initiation just like eukaryotes.
A person can only show a recessive trait if both of their parents carried at least one copy of each of the recessive allele. The parents do not need to show the trait, as one copy is not enough to reveal it, but they must both carry it.
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D. Electrons are contained in the nucleus of an atom.
Answer:
Option B, can be used to either sterilize or pasteurize, depending on the dose of radiation
Explanation:
Sterilization by radiation has started since 1895. However, commercial food irradiation plant was installed at Stuttgart, Germany in 1958. In general gamma radiation is used for sterilization purposes which disrupts the sub-atomic particles involved in the formation of the microorganism at an early stage by damaging their genetic material such as DNA or RNA with in their cells. Once the genetic material i.e DNA or RNA is damaged, the cell dies automatically.
Hence, option B is correct
