A polymerase is an enzyme (EC 2.7.7.6/7/19/48/49) that synthesizes long chains of polymers or nucleic acids. DNA polymerase and RNA polymerase are used to assemble DNA and RNA molecules, respectively, by copying a DNA template strand using base-pairing interactions or RNA by half ladder replication.
Answer:
To analyze the cell.
Explanation:
Make a Laboratory report for diffusion across a semi-permeable membrane by analysis of cell through experiment. diffusion across a semi-permeable membrane occurs in the cell so the cell must be studied for making report. A process in which molecules pass through a semipermeable membrane of the cell from a region of less concentrated solution into a region of more concentrated one is called osmosis. This semipermeable membrane of the cell allows small size substances to pass through it.
Answer:
Steroid hormones that enter the cell activate receptors. These hormone-receptor complexes then bind HREs and influence gene expression.
Explanation:
Mechanism of action of steroid hormones is as follows:
- Steroid hormone enters cell and bind to the receptor.
- Translocation of activated receptor- ligand complex into nucleus.
- This complex then bind to another receptor on the chromatin.
- Steroid receptors form dimers.
- Act on DNA
- These hormone-receptor complexes then bind HREs and influence gene expression.
- Augmentation or Suppression of transcription.
<span>Chlorophyll is found in plants, algae, and cyanobacteria. It gives leaves their green color and absorbs light that is used in photosynthesis. Hope this helps!</span>