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Yuliya22 [10]
2 years ago
15

Explain why mutations may or may not affect phenotype

Biology
1 answer:
Svetlanka [38]2 years ago
3 0

Answer:

Explanation:

Mutations may or may not affect the phenotype because they can occur in coding or non coding areas of the DNA. If they occur in coding areas of the DNA, the protein that is coded in that part could be processed incompletely or have a different amino-acid in some part of its structure, this would affect the phenotype. If they occur in non coding areas, this would have no effect on the phenotype.

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Which of the following is an example of post-transcriptional control of gene expression?
konstantin123 [22]

Answer:

Option (c).

Explanation:

Transcription may be defined as the process of formation of RNA molecule from the template DNA with the help of enzymes and transcription factors. The transcription occurs in 5' to 3' direction.

Post trancriptional modification occurs in the RNA molecule that plays an important role in transcription as well as translation. The introns are removed from the RNA transcript and exons joined together is known as splicing. The alternative splicing occurs in which different protein isoforms are formed by the single exons.

Thus, the correct answer is option (c).

5 0
3 years ago
Which part of the influenza virion facilitates interaction between the virus and the to-be-infected eukaryotic host cell?
Radda [10]
The choices are:
<span>A.  Matrix protein
B.  Hemagglutinin
C.  An ion channel
D.  Neuraminidase
</span>
The right answer is B. Hemaglutinin

Explanation:
Haemagglutinins are triangular rods. They allow the attachment of Influenzaviruses on the target cells of the respiratory tree. In the presence of red blood cells, a haemagglutination (liquid medium) is obtained.
<u>About the other components of Influenza virus:</u>Neuraminidase is a mushroom-shaped spike composed of a tetramer consisting of 4 subunits of a single glycoprotein. At 37 ° C, the neuraminidase destroys the bonds (virus - cells) and thus allows the release of neoformed virions in the external environment: it is elution.
The membrane protein M and the protein subunits of the nucleocapsid are antigenic and are the basis of the classification of Influenzavirus types A, B and C. They induce the synthesis of non-protective antibodies fixing the complement.
7 0
3 years ago
Which term refers to a solution with more molecules outside the cell than inside the cell
bazaltina [42]
The answer is hypnotic do u have answer choices?
3 0
3 years ago
When we rest immediately after completing an intense workout, our muscles will soon switch from:
natita [175]

Aerobic respiration to lactic acid fermentation, lactic acid is the reason your muscles get sore after a workout

Hope this helps.
8 0
3 years ago
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satela [25.4K]
If one parent is heterozygous (Ss) and the other is homozygous recessive (ss).  Mark me brainliest plz!
6 0
3 years ago
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