Answer:
Explanation:
There are 3 different types of DNA dependent RNA polymerase. RNAP II is the main enzyme synthesizing mRNAs.
1. Signals for initiation of transcription
Promoters: there are certain specific areas on the DNA that act as starting signals for initiation process.
The DNA polymerase attaches to the promoter site on the template DNA strand.
TATA Box: upstream of the transcription start site is 5'-TATAAA-3' it is referred to as the TATA Box. It acts as a signal for the start region.
2. Initiation of Transcription. The DNA helix unwind, and the RNAP binds to the promoter site on the 5' end DNA with the help of sigma factor. RNAP reaches the appropriate site of the gene and add the first nucleotide of the mRNA.
3. Elongation of Transcription: the RNAP moves along the DNA template, new nucleotides are incorporated in the nascent mRNA, one by one, according to the base pairing rule.
4. Termination of transcription: specific signals are recognized by the termination protein (Rho factor). When it attaches to the DNA, rnap can't move further. So the enzyme dissociate from DNA and consequently newly formed RNA is released.
"Movement of water from an area of high concentration to an area of low concentration through a semi-permeable membrane".
Hope this helps!
Key is to Lock as Substrate is to Enzyme
A substrate is a necessary component for an enzyme to become active. It is a specific shape that fits perfectly into an Active Site on the enzyme.
Answer:
1.07
Explanation:
1.55m =155cm so when you subtract 47.6 cm you get 107.4 cm which is equal to 1.074m
Answer:
This would result in an increase in the movement of substances out of the tubule via the Paracellular route.
Explanation:
Paracellular Transport:
The transportation of the substances or molecules by passing between the neighboring epithelial cells. It is a passive transport. This type of transportation is not suitable for the macro-molecules and is used for specific size molecules.
