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valentina_108 [34]
3 years ago
13

​_____ is a genetic variation associated with characteristic facial appearance, learning disabilities, and physical abnormalitie

s such as heart valve disease.
Biology
2 answers:
attashe74 [19]3 years ago
6 0

Answer: Down syndrome

Explanation:

kap26 [50]3 years ago
3 0

Answer:

Down syndrome

Explanation:

Down syndrome is a genetic disorder that occurs when an abnormal cell division results in an extra copy of chromosome 21. <em>Some symptoms of this syndrome are distinct facial features (small ears, small head, flat face, etc.), short height and even heat defects.</em>

I hope you find this information useful and interesting! Good luck!

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Answer:

C

Explanation:

<em>The correct answer would be the group that was given a placebo.</em>

A control group in an experimental study is the group that is subjected to all other conditions except the variable whose effects are being determined during the course of the experiment.

<u>Since the main goal of the research is to evaluate the effectiveness of the HPV vaccine, the difference between the experimental and the control group would be the vaccine.</u> Instead, the control group would be given a placebo - a substance that is designed not to have any effect but looks like the vaccine itself.

<em>Correct option: </em><em>C</em>

6 0
3 years ago
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alisha [4.7K]

Answer:

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Explanation:

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4 years ago
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OleMash [197]

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Explanation:

4 0
3 years ago
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Brrunno [24]

Answer:

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Explanation:

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3 years ago
Read 2 more answers
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