The test tubes in the photograph contain Benedict’s solution and two unknown substances that have been heated. What do the results indicate for each substance?

What will be an ideal response?


The substance in the right hand test tube is a carbohydrate with carbonyl groups that reacted with Benedict’s solution to produce a positive test. The left hand test tube shows a negative Benedict’s test, so the substance in that test tube is NOT a carbohydrate with carbonyl groups.

Biology & Microbiology

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Which of the following is true of gene regulation?

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Fill in the blank(s) with the appropriate word(s).

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Dental caries are caused by the production of ________ by bacteria in the mouth

Fill in the blank(s) with correct word

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