Answer:
Explanation:
Heterochromatin in terms of accessible of the cell's machinery is termed as the region whereby the nucleosomes are tightly packed toghether such that the cell's transcriptional machinery is unable to access this regions. Examples of regions where this is found is at the centromeres, the telomeres and some other few regions in the chromosomes.
Euchromatin in terms of accessibility is the region wherein the nucleosomes are loosely packed such that the cellular processes machines is able to get access to the DNA.
The cell makes DNA in highly compatible state accessible by understood some epigenetic mechanisms such as modification of the histone tails. An example is acetylation; this allows addition of an acetyl group to specific regions on the tail of particular histones that allows for the unwrapping of the history from the DNA making them accessible. This is carried out by some enzymes known as histone acetyltransferases (HATs). Another example is phosphorylation: this does the same as acetylation.
Answer:
The order of the process based on the scientific method would be-
C. My Toaster doesn't toast my bread (Observation)
F. Why doesn't the toaster work? (Question)
A. There is something wrong with the electrical outlet (Hypothesis)
B. If something is wrong with the outlet, my coffeemaker also wont work when plugged into it. (Prediction)
D. I plug my coffee maker into the electrical outlet. (Experiment)
E. My coffeemaker works. (Result)
Therefore, based on the experiment, the hypothesis is incorrect, since the coffeemaker also worked when plugged into the electrical outlet.
<u>Alternative Hypothesis</u>
There is something wrong with the Toaster.
Every living cell needs water, energy, and food to stay alive.
Light energy (from the sun) is used to convert carbon dioxide and water into glucose and oxygen in the process of photosynthesis.
carbon dioxide + water --> glucose + oxygen
the light energy from the sun is then trapped in the glucose. in order to retrieve the chemical energy stores within the molecule, the bonds have to be broken.