All of the following occur during RNA processing EXCEPTA) a protective cap is added on the 5' end of the pre-mRNAB) a tail of many adenine nucleotides is added to the 3' end of the mRNAC) the exons and introns are both removed from RNA

Provide one reason why mitosis occurs.

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. chinchilla x chinchilla 1/2 agouti, 1/2 chinchilla 3/4 agouti, 1/4 chinchilla all chinchilla