Are hydrogen bonds an example of adhesion

What is the purpose of a ribosome

Rus_ich [418]

They bind messenger RNA and transfer RNA to synthesize polypeptides and proteins.

6 0

2 years ago

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1. What are Chargaff's rules?

kotegsom [21]

1)Chargaff's rules state that DNA from any cell of any organisms should have a 1:1 ratio of pyrimidine and purine bases and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine. This pattern is found in both strands of the DNA.

2)DNA structure

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.

3)A nucleotide consists of three things: A nitrogenous base, which can be either adenine, guanine, cytosine, or thymine (in the case of RNA, thymine is replaced by uracil). A five-carbon sugar, called deoxyribose because it is lacking an oxygen group on one of its carbons. One or more phosphate groups.

4)DNA replication is said to be semi-conservative because of this process of replication, where the resulting double helix is composed of both an old strand and a new strand. ... Semiconservative replication would produce two copies that each contained one of the original strands and one new strand.

5)The diagram has show in above.

6)complementary base pairing is necessary because the double helix shape would not be the same if not. Doubles would only pair with doubles and the singles to singles.

HOPE THIS HELPS YOU.

7 0

3 years ago

Choose the term that best matches the description given.

harina [27]

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<h3>Choose the term that best matches the description given.</h3>

Cells that engulf and destroy bacteria _____.

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Cells that engulf and destroy bacteria phagocytes.

5 0

2 years ago

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Mary is campaigning for improved air quality in her city. She is very concerned about carbon and methane outputs, but not phosph

Galina-37 [17]

The answer is; D

Carbon dioxide and methane are potent greenhouse gases. They cause heating of the lower atmosphere, by trapping sunlight, that results to climate change. Due to the higher melting and boiling temperatures of phosphorus, it is rare that it occurs as gas in room temperatures. Phosphorus, therefore, does not pose a great threat of climate change.

4 0

3 years ago

What sound frequency would a human ear not be able to detect?

CaHeK987 [17]

All of the are false lowest it can be without a human ear picking up is 19 hertz

4 0

3 years ago

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