Answer:
Damaged DNA causes an increase in the number of mutations in the cell: this is extremely dangerous for the body and in fact this process is at the basis of the birth of cancer cells.
To avoid this, the cell is equipped with some molecular protective systems including the activation of the p53 protein. p53 induces recruitment of DNA damage repair systems and stops cell replication until the damage has been repaired. If the damage cannot be repaired p53 induces cell death through apoptosis
Answer:
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
Explanation:
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If the osmotic pressure on the venous side of capillary beds is lower than the hydrostatic pressure, then the fluid will tend to accumulate in tissues.
When there is accumulation of fluid in tissues it will lead an acute condition called as an Oedema.
Oedema is the swelling which is caused by the trapped fluid which has now leaked into the tissues. This is an acute condition.
oedema is also known as Swelling.
Oedema happens because there is no osmotic pressure which can take the extra fluid into the tissues, and leaves the fluid into the capillary bed.
Redness and tenderness is seen in such cases.
To know more about oedema, refer to this link:
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4 Compare the composition of the rock sample with other rock samples of know age
Answer:
The arteries going to the body are rich in oxygen
