Ques:Q: Down syndrome is caused by having three copies of what, a condition known as trisomy? Choices: - genome - variation - DNA - chromosome A:

Ans:chromosome
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Ques:Q: Uranium is an example of a non-renewable resource used to produce what type of power? Choices: - water - wind - electrical - nuclear A:

Ans:nuclear
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Ques:Q: Dna transcription is controlled by what type of proteins? Choices: - essential - digested - genetic - regulatory A:

Ans:regulatory
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Ques:Q: What are named for their "spiny skin"? Choices: - arachnids - reptiles - amphibians - echinoderms A:

Ans:
echinoderms
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