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ololo11 [35]
3 years ago
9

Brass gets discoloured in air because of the presence of which of the following gases in air?

Biology
1 answer:
Svetradugi [14.3K]3 years ago
5 0
B. Because of the presence of hydrogen sulphide in Brass, it combines with oxygen in air and form water, evaporates. So remained sulphide is colourless in air .So Brass gets discoloured in the air.
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Which of the following may use RNA as its genome?
Ilia_Sergeevich [38]

Answer:

The correct answer is option - a virus.

Explanation:

Viruses are the infectious agents that are neither considered living nor nonliving organisms. The viruses possess the genetic material enclosed in the capsid made up of the proteins.

Genetic material or the genome of the viruses could be the DNA or the RNA as single or double-stranded forms. The viruses with RNA as genetic material termed as the adenoviruses such as tobacco mosaic viruses and HIV and others.

Thus, the correct answer is option - a virus.

5 0
3 years ago
Diffusion occurs because of the ________________________ of molecules.
rosijanka [135]
Diffusion occurs because of the movement of molecules from the region of higher concentration to the region of lower concentration. This movement of molecules occurs due to a thermal motion. Diffusion normally occurs between two compartments having difference in concentration. In case of fluid it moves from the region of higher concentration to the region of concentration until a balance is reached. The process of diffusion is very important for the humans as well. The oxygen that humans breathe in gets diffused with the blood.


6 0
4 years ago
Assuming that transcription and translation both proceed from left to right, which is the correct orientation of the DNA templat
aleksklad [387]

The correct answer is:

DNA template 3'– ……… –5'

RNA transcript 5'– ……… –3'

Protein product H2N– ……. –COOH

In nucleic acids, DNA and RNA 5’ end refers to phosphate group attached to the 5′ carbon of the ribose ring, while 3’ end refers to the ribose -OH substituent. Nucleic acids can only be synthesized in the 5′-to-3′ direction, which means that the DNA template is 3’—5’. Translation of the protein by the ribosome will also proceed in a 5′ to 3′ direction, which means that the mRNA template is 3’—5’.

The protein during the synthesis is extend from its N terminus toward its C terminus.

6 0
3 years ago
Which will most likely cause an increase in the frequency of genetic mutations in
Aleksandr [31]

Answer:

Increased exposure to X-rays

Explanation:

X-rays shoot harmful radiation through your body, that's why when you go to the dentist or other places and they take a X-ray they give you a lead vest to protect your organs from unneeded radiation.

hope this helps :)  

8 0
3 years ago
A mountain range is located in the path of prevailing winds. why does the leeward side of the range have a dry climate?
lesya692 [45]
It would be A. higher.. = wet
4 0
3 years ago
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