biology cornell notes
| Question | Answer |
|---|---|
| how does it fit inside the nucleus of a microscope cell? | DNA wraps around proteins that help organize and condense.DNA is loosly organized-it looks a bit like spaghetti. |
| what are chromosomes? | one long continous thread of DNA that consists |
| what does histones do? | they get wraped from the DNA of regular intervals.parts of the histones interact with each other further compacting the DNA. |
| what's a interphase? | the interphase is a cell cycle and by the end of the cycle and individual cell has two full sets of DNA , chromosomes and is large enough to divide. |
| what's mitosis? | Mitosis divides a cells nucleus into two genetically identical daughter cells. |
| how many phases of mitosis are there? | 6- Interphase, prophase, anaphase, metophase, telophase and cytokinesis |
| what does interphase do? | it prepares to divide. during interphase the DNA is duplicated. |
| what does prophase do? | chromosomes condense and spindle fibers form 1 and longest stage. chromosomes become visible |
| metophase? | chromosomes line up in the middle of the cell. last only a few minutes. |
| anaphase? |
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