Which of the following is true of ribonucleic acid (RNA)?

A) It carries the genetic code out of the nucleus.
B) It remains safe in the nucleus of a cell.
C) It is the building block of compounds such as proteins and carbohydrates.
D) It is a long spiral molecule that stores the genetic code.


A

Physics & Space Science

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If ? = 90° ? ?, what is the value of sin2 ? + sin2 ??

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