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lys-0071 [83]
4 years ago
15

A cell has an inactivating mutation in one of its two p53 alleles. If this cell sustains DNA damage (e.g., to the HER2 gene), wh

at is likely to happen?
Biology
1 answer:
ANEK [815]4 years ago
7 0

Answer: Cell apoptosis (cell death)

Explanation: p53 protein determines whether the DNA of a cell will be repaired or damaged when the DNA is affected by harmful agents (e.g. Radiation, toxic chemicals). If the DNA cannot be repaired the protein prevents the cell from dividing and signals the cell to undergo cell death, by this apoptosis of the cell, this stops the cell from undergoing mutation or division which then prevents the development of tumours.

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The question lacks the diagram. The diagram has been attached below.

Answer:

1.

Explanation:

Exons may be defined as the coding region of the RNA whereas introns are the non coding region of the RNA. The introns must be removed out from the RNA to makes it functional molecule.

The splicing of the given molecule results in the formation of single mRNA. The 1 splicing of the introns remove intron A whereas the second splicing results in the removal of intron B. The functional mRNA consists of the mRNA with exon 1,2 and 3.

Thus, the answer is 1.

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