DNA, replication, & mitosis review
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Created by:
teamjoyner on November 2, 2011
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36 terms
Terms | Definitions |
|---|---|
 what are the 3 parts of a nucliotide? | phosate base, 5 carbon suger molecule, and nitrogin base |
| what does DNA stand for? | deoxyrido nuclaic acid |
| what are ademine and guanine concidered? | purnines |
| what is an exmple of a base pare? | a-t c-g |
| what does base pairing mean? | a nitrogen base conecting to each other |
| what are the sides of the DNA later maid of? | phoshate and deoxribose |
| what are the rungs made of? | a base pair (A-T, C-G) |
| why is it important for replication to take place? | so each new cell gets the right amount of DNA |
| why must cells go through mitosis? | to grow, repair an ingery , to make new skin cells and asexual reproduction |
| what 2 essential for replication to take place? what are their jobs? | helicase DNA polyperase replicats |
| what does helicase do | un zips DNA |
| what happends during interphase that is sooo important to the cell's succses? | DNA replication, the cell is growing replicating DNA growing more to prepair for mitosis |
| what does a non-replicated chromosone look like? | half a X |
| what does a replicated chromosone look like? | a whole X |
| what is the man diffance from a pc and ac mitosis? | plants dont have centreols cytokinisis is different because the plant cell dont pinch in to 2 they make a new cell |
| what is the 1st phase of mitosis? | interphase |
| what is the 2nd phase of mitosis? | prophase |
| what is the 3rd phase of mitosis? | metaphase |
| what is the 4th phase of mitosis? | anaphase |
| what is the 5th phase of mitosis? | telophase |
| what happends in interphase? | cell is growing, DNA replicating, normal activity for a cell |
| what happends in prophase? | centrioles are moving , nucliar envolope disapeares, chromosoms forming, spindls form |
| what happends in metaphase? | chromosomes line up on the equator, centrioles from poles of cell |
| what happends in anaphase? | sister chromotis seperate & move to poles |
| what happends in telophase? | nucliar envolope returns , nuclioulus returns, chromosons return to chromitin |
| what phase is the cell in 90% of the time? | interphase |
| what happens in cytokinesis? | cytoplasim pinch into |
| what is the differance between chromosons and chromotin? | chromosons are more difined look like a X, chromotin are noodle messss |
| in DNA replication it make how many identical strands? | 2 |
| on a chromosome it is buttoned to gether with a what? | centromere |
| cytosine and thymine are ? | pyrimidins sing rings |
| chromosons are made of what? | DNA |
| DNA is made up of what ? | nucleotides |
| what makes the other base ring of DNA? | DNA polymerase |
| what is the fork in the DNA called? | replication fork |
| Adenine-_ Cytosine-_ | thymine guanine |
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