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butalik [34]
3 years ago
12

Which of the following nitrogen bases is unique to RNA?

Biology
1 answer:
Shkiper50 [21]3 years ago
4 0
<h2>Answer</h2>

The right option is (A).

<h2>Explanation</h2>

The RNA gets its information from DNA to synthesise the proteins. It is different from DNA also due to the difference in one nitrogen basis as uracil. The thymine, the nitrogen basis that is only present in DNA is replaced with uracil to form RNA coding. The uracil also contains the same features as thymine has in DNA strains. Uracil makes a double H-bond with the adenine but does not contain CH4 group which is present in thymine.

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The Ring of Fire is a region of tectonic activity. This means that it is an area where __________ are especially common.
Andreas93 [3]
<h2>Answer:</h2>

<u>a. Earth quakes</u> are common.

<h2>Explanation:</h2>

"Ring of Fire" is a significant region in the bowl of Pacific Ocean where numerous earthquakes and volcanic ejections happen. In an enormous 40,000 km horseshoe shape, it is related to an about nonstop arrangement of maritime channels, volcanic circular segments, and volcanic belts and plate developments. It has 452 volcanoes.

About 90% of the world's tremors and about 81% of the world's biggest seismic tremors happen along the "Ring of Fire". The Ring of Fire is an immediate aftereffect of plate tectonics: the development and impacts of lithospheric plates, particularly subduction in the northern segment.

9 0
3 years ago
Read 2 more answers
What is mutation? why are mutations more serious when they occur in a sex cell?​
Lady_Fox [76]

Answer:

A mutation is the changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations, caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes. Mutations in sex cells are more serious because they are heritable and affect the next generation.

Explanation:

5 0
3 years ago
Distinguishing the Domains of Life
vitfil [10]

Answer:

1) Organisms in this domain can be unicellular or multicellular - Eukarya

2) Organisms in this domain are unicellular and are often found in extreme environments - Archaea

3) Organisms in this domain have cells that contain a nucleus - Eukarya

Explanation:

All living organisms were classified into a large group consisting of three types of organisms called DOMAIN. It is the highest taxonomic rank of organisms. The three domains that life was classified into are: Archaea, Bacteria and Eukarya.

The domain Archaea contains organisms that are unicellular and prokaryotic i.e. they do not have a membrane-bound nucleus. The organisms in this domain are characterized by their ability to survive in harsh environmental conditions e.g hot temperatures etc

The domain Bacteria also consists of unicellular and prokaryotic organisms. They contain cell walls in their cells made up of peptidoglycan unlike domain Archaea and Eukarya.

The domain Eukarya consists of organisms that are both unicellular and multicellular and strictly eukaryotic i.e. possess a membrane bound nucleus that houses their genetic material. They are divided into Kingdoms: Protista, Plantae, Animalia and Fungi.

4 0
3 years ago
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How are atoms, elements and compounds related ?
strojnjashka [21]

Atoms are the most basic units

Elements are specific types of atoms

Compounds are composed of more than one type of element and are held together by chemical bonds

8 0
3 years ago
Which of the following explains how water is recycled on Earth? A. Ice gains heat, becomes liquid, and changes back to ice as it
Nuetrik [128]

Answer:

B. Ice gains heat becomes liquid, gains more heat, and forms a gas.

Explanation:

3 0
3 years ago
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