Answer:
The correct answer is "negative".
Explanation:
At pH 2 the net charge of the R groups of all the amino acids that comprise the peptide in question would be positive. This happens because of the high content of protons in a solution of pH 2, a value that is below the isoelectric point of all the amino acids. Since the peptide would have a positive net charge, it would migrate to the negative terminal of the gel because opposite charges attract each other.
Answer:
The correct answer is A) Histone deacetylation generally decreases gene expression.
Explanation:
Histones are the proteins that are responsible for the condensation of chromatin, which is directly linked to the capacity that a gene has to be expressed. The more condensed a gene is, the less expressible it becomes.
In order to regulate the gene expression, histones can suffer from many modifications that can change their conformation and the expressiveness of specific genes.
<u>Histone acetylation is linked with an increase of gene expression; while deacetylation and methylation decrease gene expression.</u>
Prokaryotic cells do not have membrane bound organelles. Eukaryotic cells do have membrane bound organelles. The membrane controls movement in and out of the cell. ... The cytoplasm fills the space between the nucleus and the cell membrane.
Cellular respiration is the process of releasing energy from the food that one had taken. The reactants of the cellular respiration were both oxygen and glucose. The main product of this process would be ATP (adenosine phosphate) but could also be H2O and CO2.
Answer:
There are numerous biology questions which can arise on the topic of cells.
<em>One of the question can be, 'Do plant cells respond to light?'</em>
A biology inquiry question is a question which arises in the mind of a person by observing some natural phenomenon. To answer the question, a hypothesis is formed which is a tentative statement which might or might not be supported through experiments. The results from the experiments form conclusion for answering the question.
