Answer:
b. Frank received the mutant chromosome from his father. Nondisjunction occurred in his father during the first meiotic division.
Explanation:
As you can see in the question above, Frank has Klinefelter syndrome which causes him to have normal skin patches and skin patches without sweat glands. Her mother has completely normal hair, which may indicate that the defective gene was not supplied by her. In addition, Frank's father has anhydrotic ectodermal dysplasia, an X-linked condition where the skin does not contain sweat glands.
Although Frank's father's defective gene is linked to the X chromosome, it is likely that Frank inherited the defective gene from his country. This may have occurred because during meiosis I, his father's genes did not show disjunction. As a result, Frank presents a mosaic of his phenotype, because an inactivation of the X chromosome occurred.
...The origin of life on Earth is a set of paradoxes. In order for life to have gotten started, there must have been a genetic molecule.. something like DNA or RNA—capable of passing along blueprints for making proteins, the workhorse molecules of life.
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The question is incomplete it has options that are:
(Options for all tiles are reabsorption and secretion) Tiles- 1. Stella's urine sample shows the presence of proteins 2. Johns blood test report indicates a high toxin level 3. Miguel's blood test shows an increase in metabolic waste 4. Janice's urine report shows the presence of vital minerals
Answer:
The match of each situation is described below.
Explanation:
1. The presence of protein in Stella's urine is a indication of impaired filtration or insufficient absorption. The less reabsorption at proximal tubule causes the protein to remain in filtrate and excreting it in urine.
2. The high level of toxin in the blood test of Johns indicates that toxin are not secreted properly out of the body from kidney. Thus, less elimination of toxin increases its amount in blood.
3. The metabolic waste is excreted from the body through kidneys (excretory organ). The metabolic waste will be due to inadequate reabsorption. The kidney might fails to filter waste properly or waste gets reabsorbed can lead to its increase in Miguel's blood.
4. The maximum valuable substances for the body gets reabsorbed after filtration. This allows in retaining minerals in the body. The inadequate reabsorption can lead to release of vital minerals in Janice's urine.
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