The answer is, all three carbons from glucose molecules enters the Kreb cycle. But three at a time only. One molecule is broken down to two pyruvate molecules and then used in Krebs cycle. Which means that one glucose molecules leads to two cycles of the Kreb cycle with three carbons going to the cycle at one time.
Evolution continues to occur,
Bacteria becoming resistant to antibiotics is a feature of a random mutation being selected for in the population of bacteria. The ones who survive antibiotics due to having a gene for resistance are able to pass off that gene to their progeny which leads to a grand scheme of evolution
Corrosion: Rain and acid rain
<span>Breaking due to freezing and thawing: Temperature
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Answer:
Option B, Transcription that originates at the core promoter and +1 site
Explanation:
In basal transcription process a special class of transcription factors which are nothing but the protein that binds to specific sites on DNA (which are also known as promoter sites) with an objective of activating transcription of genetic information from DNA to RNA , specifically messenger RNA. The transcription initiation requires association at promoter site(or regions of DNA that are found in the upstream of the coding region of a gene) along with a σ sub unit
Hence, option B is correct