Onion Root Tip Lab Free Essay, Term Paper and Book Report
Data Collection
Table 1: Number of Onion Root Tip cells observed and counted at a certain phase (Prophase, Metaphase, Anaphase, Telophase)
Trials Interphase
(# of cells) Prophase
(# of cells) Metaphase
(# of cells) Anaphase
(# of cells) Telophase
(# of cells) Qualitative Data
1st Onion Root Tip Cell 42 20 12 16 10 - Very difficult to identify each phase
- Very small in size. Therefore, it was hard to tell the difference between Interphase and prophase.
2nd Onion Root Tip Cell 44 25 16 12 3 - We were starting to get the hang of it.
- Identified each cell with less difficulty this time.
3rd Onion Root Tip Cell 63 23 5 6 3 - Interphase with three dark circles (Centrioles) while prophase with only one
- Anaphase was the easiest to identify as its spindle fiber were darker at the ends showing that chromatids were being pulled apart.
Total (of each phase) (42+44+63)= 149 (20+25+23)= 68 (12+16+5)= 33 (16+12+6) = 34 (10+3+3) = 16 -
Average (cells in each phase) 49 22 11 11 5 -
Average (cells) = (total)/ (3)
Interphase- (149)/ (3) = 49 Prophase- (68)/ (3......
Word Count: 836
Page Count: 3.3 (250 words a page / double spaced)
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