Which of the following statements about the nucleus is not true?
a) the nucleus stores the coded instructions for making the cell's proteins
b) the nucleus usually contains a nucleolus region which is where ribosome assembly begins
c) the nucleus is the site of protein assemby
d) the nucleus is surrounded by a nuclear envelope that lets material in and out

This is one form of rna that transports a specific amino acid to a ribosome during protein synthesis.

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.

If you want to double a batch of brownies you must have double the ingredients before you start cooking similarity a cell must double its contents including its dna prior to dividing