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DerKrebs [107]
3 years ago
5

Many viral diseases are combated by prevention through

Biology
1 answer:
stellarik [79]3 years ago
7 0

Answer:

The spread of many viral diseases can be prevented by hygienic factors such as efficient sanitation facilities, effective waste disposal, clean water, and personal cleanliness. Active immunization by vaccines (antigen-containing preparations that elicit the synthesis of antibodies and thus immunity) has been useful in preventing common epidemics caused by acutely infectious viruses.

Explanation:

Mark as brainliest please

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Explain how an mRNA molecule directs the synthesis of a protein.
Ivanshal [37]

During  transcription process in the nucleus, the information for synthesis of a particular protein is copied on to mRNA.

mRNA then leaves the nucleus with this information in code, and enters the cytoplasm and attaches to a ribosome. Ribosome are the "work benches" of the cell and it is here that proteins are made.

In the ribosome, transfer RNA or tRNA recognizes a triplet of bases e.g. GCA on the attached mRNA and decodes it.  This is called the translation process.  Once tRNA has determined which amino acid corresponds to that triplet, it fetches that amino acid from the pool of free amino acids in the cytoplasm and into the ribosome where it is linked with other amino acids into a chain to form the protein.

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4 years ago
Based of these are true
qwelly [4]

Answer:

A.

Explanation:

because solid metals will sink when placed on top of whole milk.

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3 years ago
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Which of the following is characteristics of a steroid hormone action? - internal receptor binding -second messenger activation
ivann1987 [24]

Answer:

The correct answer is Internal receptor binding.

Explanation:

Steroid hormones are derived from cholesterol. There are varios steriod hormone present inside our body such as Testosterone,glucocorticoid, mineralocortocoid, coticosterone etc.

                 Steroid hormone are hydrophobic in nature as a result they can cross the plasma membrane and binds to the receptor present in either nucleus or cytoplasm.

                          After binding to the rceceptor the receptor hormone complex interract with specific DNA sequence known as steroid hormone responsive element which further leads to the transcription of that DNA resulting in the formtion of mRNA that further enters into the translation process to synthesize specific protein associated with the functioning of that hormone .

4 0
3 years ago
How do beach nourishment and vegetation management differ in the ways they manage beach erosion?
kupik [55]

Answer:

<u>Beach norishment</u> refers to <u>addition of sand on beach</u> to <u>reduce the erosion effect</u> by water currents.

<u>Vegetation management</u> is the <u>(re)plantation</u> of plants to reduce the erosion effect on beaches caused by waves.

Explanation:

In the statements given above, addition of hard structure doesn't primarily means beach nourishment, likewise, vegetation management doesn't replace the sand on beach rather prevent sand erosion. However, vegetation management brings in plants that hold the sand especially on sand dunes. Floods cannot be totally controlled by beach nourishment but with the help of plants, their impact can be minimized.

3 0
3 years ago
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