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
Answer:
e.All of the above.
Explanation:
a) Nucleotide play important role in metabolic pathways and serve as energy carriers in the form of nucleoside triphosphate ATP and GTP.
b)Nucleotide being part of the structure of enzyme cofactor serve in supporting the chemical reactions.
c) nucleosides and nucleotides are building blocks for the genetic code and cellular energy currencies.
d) they are essential for the replication of genome( DNA synthesis), Nucleotide are also used in the PCR reactions for amplification and strand synthesis.
It's D, all things necessary for life on the earth are found in the sphere.