How to match a tissue sample to a somatic cell, how to know if they came

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Soel Y

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from the same animal.? Unknown tissue sample #1
Crossing over is observed between homologous pairs
87% of cells are in some stage of cell division
Daughter cells are motile and produced in large numbers

Unknown tissue sample #2:
70% of cells are in some stage of cell division
Cells in metaphase have individual chromosomes composed of two sister chromatids, and are lined up single file prior to migration to the poles
Daughter cells contain an identical amount of chromatin as parent cell
No crossing over is observed

Unknown Tissue Sample #3:
5% of cells are in some stage of cell division
95% of cells have a nuclear envelope intact
5% of cells have a mitotic spindle
Diploind # of chromosomes

Unknown Tissue #4
gametes are found within follicles
daughter cells are haploid

Which two samples are most likely from somatic tissue?
Is it likely that tissues 1 and 4 came from the same rat? Explain why you chose your answer.

The total weight of chromatin at G2 of unknown tissue #2 is 7 picograms. What is the total chromatin weight of one of it's daughter cells?
 
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