Answer:
Take medicine to destroy the germs.
Avoid contact with other people's bodily fluids.
Eat healthful foods such as fruits and vegetables.
Explanation:
For the spread of disease, there is usually a host who bears the infectious agent, the agent exits through a port of exit from the host, is carried by a mode of transmission, then enters a susceptible second host through a port of entry. To stop transmission, stopping the infectious agent can include;
- Stopping the agent from leaving the host through port of exit – e.g quarantine the patient
- Curtailing the modes of transmission – e.g killing disease vectors
- Protecting the ports of entry in the susceptible second potential host – e.g by improving immunity
Answer/Explanation:
In eukaryotes, photosynthesis occurs mainly in green plants. These organisms have specialized organelles called chloroplasts that carry out photosynthesis. These contain photoreceptors that absorb photons from the sun through a pigment called chlorophyll, providing the energy to synthesise glucose from carbon dioxide and water.
In contrast, prokaryotes that carry out photosynthesis are able to do so because they have folds in the plasma membrane that permit the attachment of chlorophyll. They do not have specialized membrane-bound organelles like eukaryotes.
<span>By definition, the two determinants of mean arterial pressure are cardiac output and total peripheral resistance. It has been shown that Lasix decreases cardiac output and total peripheral resistance. Diuretics increase urine production, so it will lower mean arterial pressure.</span>
Answer:
A. The tails do not interact with the DNA
Explanation:
The acetylation refers to the transfer of the acetyl group from Acetyl-CoA to the N-terminal of the histone protein.
Lysine residues (positively charged amino acid) are present at the end of the N-terminal of the histone protein which is neutralized by the acetyl group.
This loses the compaction between the positively charged histone and the negatively charged DNA and the DNA becomes more relaxed. This relaxed state allows the transcription factors to easily bind the DNA and therefore the DNA becomes transcriptionally active.
Thus, Option-A is correct
