Answer:
Explanation:
The components of the cell membrane consists of lipids that includes the cholesterol and phospholipids other components includes the carbohydrates, and proteins. The phospholipid forms the basic structure of the cell membrane. The cholesterol molecules are scattered in the lipid bilayer, these help the membrane in the fluid consistent state.
The main function of the plasma or cell membrane is the protection of the cell from it's surrounding.
Answer:
transcription initiation
Explanation:
Transcription is a process by which genetic information from DNA is used to synthesize an RNA molecule, usually, a messenger RNA (mRNA), which is subsequently utilized to synthesize a protein by a process called translation. Transcription in prokaryotes has three steps:
1-Initiation: the RNA polymerase is a multisubunit enzyme (holoenzyme) composed of two α, one β, one β’ and one ω and σ subunits (α2ββ’ωσ). This holoenzyme binds to the promoter region of the template DNA strand.
2-Elongation. The sigma σ factor of the holoenzyme is released and the complex and the core enzyme (α2 ββω) moves along the template strand, thereby producing an mRNA sequence
3-Termination. This step can be Rho-dependent, where a protein named "Rho" recognizes the termination site and stop transcription, and Rho-independent (transcription continues until the termination sequence is reached).
In consequence, Rifamycin is likely to block the initiation of transcription because the core RNA enzyme needs to bind the sigma factor (σ) for initiation of transcription in bacteria.
Answer:
Avoid putting oils in water, and don't put trash in it either.
C. The Bering Land Bridge once connected what would be Russia and North America but the the movement of these continents separated the land bridge
