Zoology 101 - Mitosis
Terms
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copy deck
- What is DNA
-
deoxyribonucleic acid
double-stranded polymer made up of nucleotides
The base (in triplets) in many portions of the DNA code for amino acid sequences that make up protein products - Chromatin
- the loose, uncoiled state of DNA during interphase
- Chromosomes
- the condensed, tightly coiled molecules of DNA visible starting in Prohpase of both mitosis & meiosis
- Sister chromatids
- gnetically identical copies of a chromosome attached at the centromere
- Centromere
- part of the chormosome that connects the sister chromatids, consists mostly of repetitive satellite DNA
- Centrosomes
- centers of microtubule organization; duplicated during G2 of interphase & migrate to opposite poles during cell division to pull chomosomes apart
- What are the 2 main functions of mitosis?
- Growth & repair/replacement of multicellular organisms
- Interphase consists of
-
Gap 1
Synthesis
Gap 2 - Gap 1
- cell growth/metabolic activity. DNA
- Synthesis
- DNA replication
- Gap 2
- cell gets bigger, further preperation for division, centrosomes duplicate
-
What are the phases of mitosis
and can you learn all of them by the midterm you fucking idiot -
Prophase
Prometaphase
Metaphase
Anaphase
Telophase & Cytokinesis