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Mnenie [13.5K]
3 years ago
10

Cytosine thymine and uracil have a single ring structure and are classified as

Biology
1 answer:
iragen [17]3 years ago
8 0

Answer:

Pyrimidine

Explanation:

This is because pyrimidine are one of the two types of heterocyclic nitrogenous bases of RNA and DNA. They include uracil, cytosine and thymine in RNA. They have single structure and have nitrogen at position 1 and ring at 3. Pyrimidine are present in Vitamins such as ribloflavin, folic acid and thiamine. Pyrimidine derivatives have characteristics that are antiviral, antibacterial, antifungal, sedative e.t.c.

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PLEASE PLEASE ANSWER FAST PLEASE
Kisachek [45]

Answer:

The most common myths are:

- C0vid2019 vaccines cause autism  

- C0vid2019 vaccines may modify your DNA

- C0vid2019 vaccines are unsafe

Explanation:

The most common myths associated with C0vid2019 vaccines are:  

1- C0vid2019 vaccines may cause autism: In 1998, Andrew Wakefield and colleagues published a controversial study in the Lancet where they suggested that the measles, mumps, and rubella (MMR) vaccine may cause autism in some children. However, it has been showed that this study was based on erroneous statements and therefore this publication was retracted.

2- C0vid2019 vaccine may modify your DNA: it has been suggested that vaccines based on viral vectors (e.g. adenoviruses) and mRNA vaccines may modify the DNA of cells. This statement is false because these technologies cannot alter the DNA sequence. These vaccines are based on the production of an mRNA sequence that is translated into a viral protein (spike protein) which triggers an immune response

- C0vid2019 vaccines are unsafe: some people believe that C0vid2019 vaccines are unsafe because they were developed quickly. However, this statement is false because all vaccines (including C0vid2019 vaccines) need to follow rigorous safety standards to be approved by governmental agencies (i.e., they approved all clinical trials).

4 0
3 years ago
Which of the following explains how movement of material within earth causes volcanic eruptions
EleoNora [17]

The following choices are provided;

One plate moves below the other due to the movements in the inner core.

One plate moves below the other due to the movements in the mantle.

A plate slides past another due to the movements in the inner core.

A plate slides past another due to the movements in the mantle

The answer is; One plate moves below the other due to the movements in the mantle.

It is common that such convergent boundaries have a cascade of volcanic ranges. This is because as the oceanic plate moves below the continental plate the pressure and high temperatures cause the rock to melt and become magma. The magma makes it way up the crust through fissure and erupts.

6 0
3 years ago
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6 0
2 years ago
How does an underestimate relate to rounding factors before estimating?
Mashutka [201]
<span>If factors are only rounded up, then the estimate is an overestimate. If factors are only rounded down, then the estimate is an underestimate. When some factors are rounded up and some are rounded down, it is harder to tell whether the estimate is an overestimate or an underestimate.</span>
3 0
3 years ago
Need help pls you know what Ima give 24 points dmb answers will be reported
Trava [24]

Answer:

I would limit almost anything on the mountains.

Along with that, build very sturdy walls to assist prevention from them hitting the city, of course have the "moved land" to a different location.

4 0
3 years ago
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