4190673
Description
Flashcards by maddyaddyo, updated more than 1 year ago
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Created by maddyaddyo
almost 10 years ago
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| Question | Answer |
| In which stage are individual chromosomes first present? | Anaphase |
| In what stage of mitosis are sister chromatids formed? | Prophase |
| In mRNA the As attatch to... | U |
| Single Ring Bases | Cytosine and Thymine |
| Double ring bases | Guanine and Adenine |
| Double Ring family of bases are called | Purines |
| Single Ring family of bases are called | Pyrimidines |
| What did Chargoff's rule state? | #A=#T #C=#G |
| What is a nucleotide made of? | Phosphate group - inorganic Deoxyribose (Sugar) Nitrogenous base -organic |
| How is the Sugar-Phosphate 'backbone' bonded? | Covalently |
| What are the rungs of the 'ladder' held by? | The nitrogenous bases A-T and C-G |
| What type of bond is inbetween AT and CG, and why is it important? | Hydrogen Easier to break than covalent bonds |
| 3 steps involved in cell replication | Unwind, unzip, replicate |
| What tells the DNA to unwind, unzip, and replicate? | Enzymes |
| Definition of Gene | Segment of DNA that codes for a proteinDefi |
| Definition of Chromosome | Tightly packed DNA, molecule of DNA that contains many genes |
| Relationship between DNA, genes, and chromosomes | Chromosomes consist of segments of DNA (genes) that code for various proteins |
| The two main functions of DNA | Replication and Protein Synthesis |
| Codon | Group of 3 nitrogenous bases that codes for an amino acid |
| Nitrogenous base for DNA | Thymine |
| The nitrogenous base for RNA | Uracil |
| Definition of Binary Fission + Examples | Form of reproduction where two identical daughter cells are produced, with no parent after division. Example: bacteria |
| Definiton of Budding + Examples | The bud that reproduces is usually smaller than the parent. The parent still exists after bud forms. Examples of this: Yeast and Hydra |
| Regeneration Definition and Examples | Replacement of a lost body part, that sometimes results in reproduction. Examples: Starfish, Lizards, Planaria(worm) |
| Go and G1 Phase in Cell Cycle | Growth and preparation to copy DNA |
| "S" in the Cell Cycle | DNA replication occurs (S - Synthesis) |
| G2 Phase in the Cell Cycle | Growth and preparation for division |
| "M" in the Cell Cycle | Mitosis. Your cell is actively dividing. |
| Purpose of Mitosis | Growth, Repair, Asexual Reproduction |
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