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Olegator [25]
3 years ago
5

Cells from advanced malignant tumors often have very abnormal chromosomes as well as an abnormal number of chromosomes. what mig

ht explain the association between malignant tumors and chromosomal abnormalities?
Biology
1 answer:
Dahasolnce [82]3 years ago
5 0
The advanced malignant tumors are often associated with abnormal chromosomes and abnormal number of chromosome which results to the association between chromosomal abnormalities and malignant tumors. This association best explains with the reason that cell cycle checkpoints are not in place which cannot stop the cells with chromosome abnormalities.



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Describe the structure of the kidney and include structure of nephron as well
asambeis [7]

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Generally, mammals have a pair of bran-shaped kidneys. The mammalian kidney has 2 distinct regions, an outer renal cortex and inner renal medulla. Both regions are packed with microscopic excretory tubules, nephrons, and their associated blood vessels. Each nephron consists of a single long tubule and a ball of capillaries, known as glomerulus. The blind end of the tubule forms a cup-shaped swelling called Bowman’s capsule, that surround the glomerulus. From Bowman’s capsule, the filtrate passes through 3 regions of the nephron which are proximal tubule, the loop of Henle. A hairpin turns with a descending limb and an ascending limb and the distal tubule. The distal tubule empties into a collecting duct, which receives processed filtrate from many nephrons. The many collecting ducts empty into the renal pelvis, which is drained by ureter.

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