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3 years ago

Which two terms describe a condition in which there is widespread scaling of the skin?

1 answer:

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exfoliative dermatitis

Generalized exfoliative dermatitis is a severe inflammation of the entire skin surface due to a reaction to certain drugs, a pre-existing skin condition and sometimes cancer. In approximately 25 percent of people, there is no identifiable cause. It is characterized by redness and scaling of the skin that begins in patches and spreads.

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What term includes all the biotic and abiotic factors in an area?

finlep [7]

Answer:

A. ecosystem

Explanation:

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3 years ago

An Asian elephant calf is larger and more mature than a robin chick or bear cub when

sdas [7]

Answer:

it may be based on there surrounding that they have adapted to .

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3 years ago

Which of the following is an example of an active transport mechanism?

Alexeev081 [22]

Answer:

sodium-potassium pump

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3 years ago

Read 2 more answers

This exercise is designed to help understand the naming process of a few se muscle names. The other column is a list of descript

ss7ja [257]

Answer:

Explanation:

Brachii: H - It means of the arm.

Palmaris: H - It means of the palm of hands.

Longus : G - Longus means long

Brachio: C - It refers to origin on the upper arm.

Radialis: C - It refers to insertion on the radius of the forearm.

Pronator: A - Pronation is inward rotation of part of the body towards middle of the body.

Teres: B - meaning round or cylindrical shape

Deltoid: B - meaning triangular shape

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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:

(1) Chemical proof reading: 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.

(2) Kinetic proof reading: 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.

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3 years ago