3 years ago

Individuals with Down syndrome have an extra chromosome 21. This is an example of which type of chromosome disorder?

1 answer:

8 0

The correct answer is choice B. Nondisjunction.

Nondisjunction disorder occurs when either the homologous chromosomes or the sister chromatids fail to disconnect properly during cell division. This failure results in daughter cells with an abnormality in chromosomes.

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________ are the most commonly used species for animal research.

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Answer:

Mice and rats make up approximately 95% of all laboratory animals, with mice the most commonly used animal in biomedical research.

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2 years ago

Explain what nuclear, or atomic, process most likely results in geothermal energy. Also state why this nuclear energy will last

ELEN [110]

Explanation:

Nuclear energy does not produce electricity on its own. The nuclear energy it produces is used to heat water . The hot water then turns to steam that is used to turn dynamo turbines. This is thermal energy turned to mechanical energy. The dynamo turbines turn the mechanical energy into electric energy.

Nuclear energy lasts longer because the same volume as compared to fossil fuels produced a larger magnitude of energy, million of magnitudes larger. Therefore with the controlled release of this enormous energy, nuclear energy can last much longer than fossil fuels.

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