Which of the Following Is NOT a Possible Candidate for Dark

question 55

Multiple Choice

Which of the following is NOT a possible candidate for dark matter?

• A) axions
• B) positrons
• C) photinos
• D) neutrinos
• E) None of the above; all of these could be dark matter.

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Definitions:

Haworth Structure

A way of representing cyclic structures of monosaccharides in a simplified three-dimensional perspective compared to the Fischer projection.

Isomerization

A chemical process in which a molecule is transformed into another molecule with the same molecular formula but a different structural arrangement.

Reagents

Substances or mixtures used in chemical reactions to bring about a change or detect the occurrence of a specific reaction.

2-Ketohexose

A category of hexose sugars characterized by having a ketone functional group in the second position of the carbon chain.