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Blababa [14]
3 years ago
7

A 35 year-old man presents with a testicular mass. Beta-HCG and Alpha-Feto Protein blood levels are normal. A radical orchiectom

y is performed. Grossly the mass is tan-white and nodular without hemorrhage. Microscopically it is composed of large cells with clear cytoplasm, visible cell membrane, fibrous septa and lymphocytes. What is your diagnosis?
Biology
1 answer:
makvit [3.9K]3 years ago
7 0

Answer: Classic seminoma

Explanation:

The classic seminoma can be defined as the germ cell tumor of the testicles or mediastinum. It is a type of malignant neoplasm and is treated and curable stage of the cancer.

It has a survival rate of more than 95 % if it is detected during the early stages of diagnosis.

It originates in the germinal epithelium of the semniferous tubules. In this case the fertility of the person is not affected and sexual function also remains intact.

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It determines the characteristics that will be inherited

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In wild-type cells growing in nitrogen-rich medium, the size threshold to enter mitosis is high, and the G1/S size control is cryptic because cell division produces daughter cells with a size greater than the minimum required to initiate S phase. In these conditions, G2 is long and G1 is short. However, the cell size threshold to enter mitosis is greatly reduced when wild-type cells are shifted to medium with a poor nitrogen source, such as minimal medium with proline, isoleucine, or phenylalanine. In these conditions, wild-type cells initiate mitosis at a reduced cell size, generating two daughter cells that are smaller than the critical size threshold required to progress through G1/S

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Explanation:

6 0
3 years ago
When scientists discuss the Sixth Extinction, they are referring to which pattern in the rate of extinction?
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Explanation:

The Holocene extinction, otherwise referred to as the sixth mass extinction or Anthropocene extinction, is an ongoing extinction event of species during the present Holocene epoch (with the more recent time sometimes called Anthropocene) as a result of human activity.[3][4][5] The included extinctions span numerous families of plants[6] and animals, including mammals, birds, reptiles, amphibians, fishes and invertebrates. With widespread degradation of highly biodiverse habitats such as coral reefs and rainforests, as well as other areas, the vast majority of these extinctions are thought to be undocumented, as the species are undiscovered at the time of their extinction, or no one has yet discovered their extinction. The current rate of extinction of species is estimated at 100 to 1,000 times higher than natural background extinction rates.

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8 0
3 years ago
At age 10 you carved your name into the trunk of a 20 ft oak tree at about chest-height (for your 10-yr-old self). Thirty years
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