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Assoli18 [71]
3 years ago
9

Why is it important to discover Alzheimer’s in the very early or pre-clinical years or at least during stage one

Biology
1 answer:
OLEGan [10]3 years ago
6 0
It’s important because Alzheimer’s disease is currently ranked as a six leading cause of death in the United States. An early Alzheimer’s diagnosis provide you with a better chance of benefiting from treatment.
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zhenek [66]
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In Gregor Mendel's study with the color or peas, which ones were dominant and which ones were recessive?
zhenek [66]

Answer:

The peas with the purple flowers were dominant and the peas with the white flowers were recessive.  

Explanation:

In Gregor Mendel's study, he studied pea plants with purple flowers and white flowers.  The purple flowers were dominant, and whenever the allele for a purple flower was present is was visible on the plant.  The white flowers were recessive because if an allele for a purple flower was present, then the flower was purple.  The flowers were only white if both alleles were for white flowers.  

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Which of the following environmental conditions would be MOST likely to result in transcription of the lac
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Answer:

The correct answer is B high levels of lactose and high levels of cyclic AMP.

Explanation:

Lac operon contain 3 regulatory genes and 3 structural genes.In presence of lactose the repressor molecule that is encoded by Lac I gene cannot bound to the operator region.

        Bacause the lactose interact with the repressor and change its conformation so that it cannot repress the expression of the structural genes of lac operon.

  On the other hand cyclic AMP is a positive regulator of  lac operon .The interaction of cyclic AMP with the promoter region of lac operon stimulates the binding of RNA polymerase in the promoter region to boost the expression of structural genes of lac operon such as Lac Z,Lac Y and Lac A.

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