7 2 points
You use the spectrophotometer to measure the absorbance of an unknown sample of ortho-nitrophenol.
Your absorbance reading is 0.485 A
Use the standard curve shown here to give an estimate of the concentration of the ortho-nitrophenol. Don't forget to include the unit of measure in your answer.
Your estimate must be within 15 units of the actual concentration. Only include the concentration and the unit in your answer.

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.

i would say it is

1) a

2)c

3)a

4)c

5)b

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