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levacccp [35]
3 years ago
10

How/why did sickle cell anemia increase in frequency in the human population?

Biology
1 answer:
Levart [38]3 years ago
4 0

Answer:

The character of sickle cell anaemia does not get fixed in the population Because it has more disadvantages than advantages

Explanation:

Any character will get fixed in the population if the character provides the progeny certain advantage to reproduce better.The rate of malaria infection is low, but such people may have breathing difficulties and organs may fail due to the wrinkled RBC's not able to flow smoothly in the arteries and hence causing blockages. the character may be recessive but again the amount of oxygen carried per healthy RBC is less and that makes breathing difficult . so as a character its a disadvantage for the person who is a career and hence not being selected to be fixed.

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After the protein has fallen off the operon, the ____________ can then transcribe the DNA into mRNA.
iren2701 [21]

Answer:

The genetic material of most organisms is DNA, which stores the information required for the development, functioning, and reproduction of the organism. DNA is a long piece of nucleotides where both coding and non-coding regions can be identified within the nucleotide sequence. The coding regions contain the information for the production of functional proteins in the organisms. The process of production of the polypeptide chain of the protein inside the cell is known as protein synthesis. Transcription of DNA into mRNA and translation of mRNA into an amino acid sequence of the protein are the sequential steps of the protein synthesis.

Explanation:

7 0
3 years ago
The correct shorthand to symbolize a carboxyl group is:
nikitadnepr [17]

Answer;

-COOH

Explanation;

The carboxyl group includes both a keto oxygen and a hydroxyl group; Carboxyl groups are weak acids, dissociating partially to release hydrogen ions. The carboxyl group (symbolized as COOH) has both a carbonyl and a hydroxyl group attached to the same carbon atom, resulting in new properties.

The carboxyl functional group is an acidic functional group frequently found in biological molecules. It is found in amino acids, proteins. fatty acids, acetic acids and other organic acids.

8 0
4 years ago
Read 2 more answers
1. Describe at least one part of the experiment procedure you thought was essential for getting good results. Did you find that
BartSMP [9]

Answer:

Control environment is the most important procedures for getting good results.

Explanation:

The control environment for an experiment is the essential part for getting good results. In control environment, there is no or less chances of infestation from the external environment which can cause the results of the data more acceptable. So the scientists prefers laboratory for performing experiment as compared to outer environment. So in my opinion for getting better results, the control environment is the most necessary experimental procedure.

Yes, for getting better results I think there is a step that could have been added to the procedure is to follow the international standard procedures for taking the readings by the experimenter.

6 0
3 years ago
Place the following terms in order with 1 being the smallest scale and 11 being the largest.
Hitman42 [59]
You need to put a picture of the terms or just write the terms
7 0
3 years ago
The area of triangle LMN is 18 ft2 and the area of FGH is 24 ft2. If triangle LMN is equivalent to triangle FGH, what is the rat
Sedaia [141]

Answer:  Option 'C' is correct.

Explanation:

Since we have given that

Area of triangle LMN = 18 ft²

Area of triangle FGH = 24 ft²

Since Δ LMN and ΔFGH is equivalent triangles.

As we know the theorem which states that ratio of areas of equivalent triangles is equal to square of ratio of corresponding sides.

So, it becomes,

\dfrac{\Delta LMN}{\Delta FGH}=(\dfrac{LM}{FG})^2\\\\\dfrac{18}{24}=(\dfrac{LM}{FG})^2\\\\\dfrac{3}{4}=(\dfrac{LM}{FG})^2\\\\\sqrt{\dfrac{3}{4}}=\dfrac{LM}{FG}\\\\\dfrac{\sqrt{3}}{2}=\dfrac{LM}{FG}

Hence, Option 'C' is correct.

5 0
4 years ago
Read 2 more answers
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