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Mariulka [41]
3 years ago
15

Define biodiversity in your own words ​

Biology
1 answer:
Aleksandr [31]3 years ago
4 0
What year or grade ur in?
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Why is species diversity important in an ecosytem
Leviafan [203]

Every species relies on another in some way. Without one species another species wouldn't be able to survive.

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Imagine that you are using a microscope. Your high power objective 40x and your eyepiece is 15x. What is your total magnificatio
marin [14]
The total magnification would be 600x as you would obtain the total magnification by multiplying the objective lens magnification and the eyepiece magnification together.

40 • 15 = 600.
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Describe DNA in your own words
Vinvika [58]
A chemical compound that carries genetic information that tells the organism and its parts what to do and how to behave.
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What type of cells are Merkel cells?
abruzzese [7]

Answer:

Pressure sensing cells

Explanation:

Merkel cells provide information on pressure, position and deep static touch features such as shapes and edges. They are tactile sensors on the business of mechanotransduction. They encode surface features of touched objects into perception, but also have to do with proprioception.

7 0
3 years ago
The chemical mechanisms used to avoid errors in protein synthesis are different from those used during DNA replication. DNA poly
Savatey [412]

Answer:

(C) Aminoacyl-tRNA synthetases have an additional active site that binds to non-cognate tRNAs. The tRNAs that bind to this second active are hydrolyzed and released from the enzyme.

Explanation:

In case of translation, proof reading is done by aminoacyl-tRNA synthetases only. Aminoacyl-tRNA synthetases have two mechanisms to avoid error during translation which are mentioned as under:

<u>(1) Chemical proof reading:</u> Incorrect amino acids rather than being hydrolyzed in catalytic pocket get hydrolyzed in editing pocket and thus they hardly get attached to tRNA.  

For example: For distinguishing similar amino acids like isoleucine and valine, isoleucyl-tRNA synthetase uses a second active site which is meant for only valine not for isoleucine. In this particular site, valine which had entered the enzyme is cleaved away with the help of editing reaction after which the enzyme is well prepared to process isoleucine which is the correct amino acid for this enzyme.

<u>(2) Kinetic proof reading: </u>Even if an incorrect amino acid has entered a particular aminoacyl-tRNA synthetase, it does not cause appropriate conformational change in the enzyme because of which the incorrect amino acid loosens from the enzyme and does not get incorporated.

Note: In this example, only chemical proof reading is mentioned not kinetic proof reading.

5 0
3 years ago
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