Suppose that an x-shaped structure containing DNA has just been separated into two equal parts during anaphase of mitosis. After the separation, what is each molecule called?
chromatin
a chromosome
a chromatid
a chromosome
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What is the exome?
A) Sequences in between protein-encoding genes B) Protein-encoding genes C) All the DNA in a genome D) All of the proteins in a cell
We refer to the DNA code as being redundant or repetitive. This means that
a. each triplet codes for one amino acid. b. some codons code for the same amino acid. c. one codon codes for one amino acid. d. each triplet codes for a different amino acid. e. a single triplet may code for more than one amino acid.
Which cellular structure is the "shipping center", responsible for packaging materials with the cell?
a) Golgi apparatus b) chloroplasts c) ribosomes d) mitochondria
Unlike vessel elements, ____________ have no perforation plates.
Fill in the blank(s) with the appropriate word(s).