| A | B |
|---|
| In DNA replication, _____ break hydrogen bonds between complimentary nitrogen bases. | helicase enzymes |
| The parts of a nucleotide: | sugar molecule, nitrogen base, phosphate group |
| Each daughter molecule contains half of the parent molecule's nucleotides. | semi-conservative |
| Sugar contained in RNA: | ribose |
| The number of strands of nucleotides that DNA have: | 2 |
| The name of the DNA's twisted ladder shape: | double helix |
| Protein synthesis is: | the making of proteins |
| The protein making factories are the: | ribosomes |
| Protein making instuctions are: | genes |
| In DNA, the complementary base pairing rule matches: | A to T, and C to G |
| In RNA, the complementary base pairing rule matches: | A to U, and C to G |
| _______ combines with proteins into bundles known as ribosomes. | rRNA |
| ____ contains the anticodon. | tRNA |
| _____ contains a coded set of instructions for making proteins. | mRNA |
| All molecules are composed of____. | atoms |
| something that speeds up reactions: | catalyst |
| The amount of energy needed to start a reaction: | activation energy |
| molecules produced during a chemical reaction: | end products |
| A protein's 3-D shape is called a _______. | tertiary structure |
| __________ describes its sequence of amino acids | primary structure |
| First phase of mitosis: | prophase |
| Second phase of mitosis: | metaphase |
| Third step of mitosis: | anaphase |
| The shape of chromosomes: | X |
| DNA molecules wrapped around proteins form a ___ | chromatin |
