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MatroZZZ [7]
3 years ago
6

Sometimes in order to study parts of an animal's brain, researchers may deliberately damage a part of the brain. They accomplish

this by placing into the brain a thin insulated wire through which they send an electrical current that destroys the brain cells at the tip of the wire. This technique is called _____________
Biology
1 answer:
Oliga [24]3 years ago
3 0

Answer:

The correct answer will be- lesioning

Explanation:

Lesioning is a technique used to treat severe movement disorders related to Parkinson's disease.

In lesioning, the lesions (damage) are created in a small part of the brain related to the movement by sending an electric current through a thin insulated wire.

This technique nowadays used in research centres to study the different parts of the brains to study the functions related to the brain.

Thus, lesioning is the correct answer.

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The benefit of measuring the initial rate of a reaction, V0, is that early in the course of the reaction, A) Km is the substrate
aleksandr82 [10.1K]

Answer:

Rate of product formation is linear and [S] has not been lowered significantly.

Explanation:

The rate of enzyme-catalyzed reactions is affected by several factors, the contraction of substrates [S] is one of them. The substrate concentration keeps on changing as the reaction proceeds. This is why the reaction rate is measured at the initial stages of reactions when the substrate concentration [S] is much greater than the concentration of the enzyme. It is called the initial rate or initial velocity.

Under the conditions of higher substrate concentration and relatively much lower enzyme concentrations, only a few molecules of substrates are being converted into product. At a relatively higher substrate concentration, the rate of product formation increases linearly.

4 0
3 years ago
The first eukaryotes evolved 2.5bya.<br> A.True<br> B. False
faltersainse [42]
It would be A. True. I hope this helped you. Have a good afternoon
5 0
3 years ago
A woman, S.R., had a maternal grandfather with hemophilia A (OMIM 306700), an X-linked recessive condition that reduces blood cl
Sidana [21]

Answer:

Hemophilia is a x-linked recessive inherited bleeding  disorder. in this disease blood does not clot properly due to the decreased level of blood clotting factor VIII (8) or factor IX (9).

In x-linked recessive condition, the disease is transmitted from father (affected male) to his daughter and mother (affected female) to her son and skip of generation getting affected is also occurs.

  • there will be 50% chance of her (S.R.) each son to be affected with hemophilia.

Explanation:

Hemophilia is caused due to mutation of one gene which is responsible for the making of proteins of  blood coagulation factor viii or ix. the affected person bleeds continuously from any injury and that can cause serious issues.

here,

grandfather of s.r is affected (xₐy) and grandmother is normal (xx) will produce

                                                   ↓

 s.r's mother who is a carrier (xₐx) [as xₐy and xx will produce 100% carrier xₐx daughter]

                                                    ↓

s.r's mother is a carrier (xₐx) but her father is normal (xy) will produce,

                                                   ↓

s.r who has 50% chance of being carrier (xₐx) and 50% chance of being normal (xx) [as she is the only child] and she has a normal (xy) partner, they will give,

                                                     ↓

  1. if s.r is a carrier (xₐx) then one of her son will be affected (xₐy)   [as xₐx and xy =xₐy]
  2. if s.r is normal (xx) then her son will be normal (xy) [as xx and xy will give xy]

here,<u> 50% chance of her son to be affected with hemophilia</u> [as S.R of being affected is more considerable].

8 0
3 years ago
Which of the following could be considered a reliable source of scientific information?
Gre4nikov [31]
The answer is A because if you want a reliable source of scientific information you should go to an actual scientist at a scientific conference.
7 0
3 years ago
Read 2 more answers
Which of the following does not accurately describe movement within plants? A. Movement of sugars within the xylem results from
vivado [14]
The Answer is A but im only about 5% sure about my answer
6 0
3 years ago
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