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hichkok12 [17]
3 years ago
12

Which nucleotide bases are purines?

Biology
1 answer:
monitta3 years ago
3 0

Answer:

a. adenine and guanine

Explanation:

A purines nucleotide is a combination of the heterocyclic aromatic rings, the imidazole and pyrimidine ring.  

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How many times larger is the number of Hydrogen atoms than Oxygen atoms in a disaccharide?
WARRIOR [948]

There are twice the number of Hydrogen atoms than Oxygen atoms in a disaccharide.

<h3>Disaccharides</h3>
  • Disaccharides are carbohydrate compounds containing two monosaccharide units linked together by glycosidic bonds

Examples of disaccharides include sucrose and maltose.

  • The ratio of hydrogen to oxygen atoms in a carbohydrate is always a 2:1.

For example, the formula of sucrose is C₁₂H₂₂O₁₁

> The ratio of hydrogen to oxygen atoms is 2;1

Therefore, there are twice the number of Hydrogen atoms than Oxygen atoms in a disaccharide.

Learn more about disaccharides at: brainly.com/question/731310

8 0
3 years ago
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MULTIPLE CHOICE
mojhsa [17]

Answer:

The correct answer is the growth of the offspring to adulthood.

Explanation:

A life cycle is illustrated as the stages of development, which take place during the lifetime of an organism. A life cycle ceases with the death of an organism. Generally, the animals and plants go through three fundamental stages in their life cycles, beginning as a seed or fertilized egg, developing into an undeveloped juvenile, and eventually turning into an adult.  

During the stage of adulthood, a species will reproduce, forming a new generation. A life cycle can constitute more than three fundamental stages on the basis of the species. For example, the life cycle of a human being comprises five main stages.  

8 0
3 years ago
Neurons may be classified according to several characteristics. Which of the following is correct? A. Group A fibers are mostly
den301095 [7]

Answer:

Option (B).

Explanation:

Neurons or nerve cell are the basic structural and functional unit of the nervous system. Fibers are the thread like long projection of the nerve cells.

Neurons are classified into three fibers- Group A fibers, B fibers and C fibers. The group C fibers cannot capable of doing the saltatory conduction of the nerve impulse because they are unmyelinated.

Thus, the correct answer is option (B).

3 0
3 years ago
Do you think it is possible to have the benefits of the agricultural &amp; industrial revolution without the environmental costs
telo118 [61]
I do not think the industrial and agricultural revolutions could have occurred without the environmental costs. The industrial revolution in the 18th century occurred at a time in history when people where not aware of the consequences of their actions or the consequences of the widespread use of fossil fuels. Even if they were aware the technology would not have been present to harness power from natural renewable sources of energy. 
6 0
3 years ago
Photosynthesis is the putting together of carbohydrates by using light energy.
fiasKO [112]
Answer: More than likely is going to be True.
4 0
3 years ago
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