I think it's Robert Hooke. I could be wrong, though:/
Creation of drugs. She is a medical chemist after all so she'd need to have the necessary knowledge to make medicine which can later be sold in a pharmacy
Answer:
The chromatin structure undergoes various modification for proper gene expression. Histone acetylation, histone deacetylation, methylation and sumoylation are important for the epigenetics.
Epigenetics may be defined as the change in the genome that affect gene activity, its expression and heritable phenotypic change of the organisms. The DNA sequence is not altered in the epigenetic modification but the gene expression has been modified by methylation or acetylation.
Answer:
both the hydrophobic effect and van der Waals interactions.
Explanation:
Hydrophobic interactions refer to the interaction of non-polar groups with each other in the watery medium. Van der Waals interactions are the weak intermolecular forces formed when one molecule induces polarization in the other.
A DNA double helix has the base pair stacked on the top of one another. The adjacent base pairs are separated from each other by a distance of 3.4 angstroms. The atoms of each base pair for van der Waals interactions with each other since they are separated from each other by van der Waal contact distance.
Also, the hydrophobic surfaces of the bases make hydrophobic interactions with each other to stay away from the water. Therefore, Van der Waal interactions and hydrophobic effects both contribute to base stacking.
The answer is guard cells.
Guard cells are cells surrounding each stoma. They help regulate the rate of transpiration by opening and closing the stomata. They are specialized cells in the epidermis of leaves, stems and other organs that are used to control gas exchange. They are produced in pairs with a gap between them that forms a stomatal pore (stoma).