Are You Another Einstein?

Take 5 minutes to answer this question in your notebook…

A cell containing a single chromosome is placed in a medium containing radioactive phosphate, so that any new DNA strands that are formed by replication will be radioactive. The cell replicates its DNA and divides. Then the daughter cells (still in the radioactive media) replicate their DNA and divide, so that there are a total of 4 cells present. Sketch the DNA molecules in all 4 cells showing normal DNA strands as a solid line and radioactive DNA strands as a dotted line.

5 minutes A cell containing a single chromosome is placed in a medium containing radioactive phosphate, so that any new DNA strands that are formed by replication will be radioactive. The cell replicates its DNA and divides. Then the daughter cells (still in the radioactive media) replicate their DNA and divide, so that there are a total of 4 cells present. Sketch the DNA molecules in all 4 cells showing normal DNA strands as a solid line and radioactive DNA strands as a dotted line.

4 minutes A cell containing a single chromosome is placed in a medium containing radioactive phosphate, so that any new DNA strands that are formed by replication will be radioactive. The cell replicates its DNA and divides. Then the daughter cells (still in the radioactive media) replicate their DNA and divide, so that there are a total of 4 cells present. Sketch the DNA molecules in all 4 cells showing normal DNA strands as a solid line and radioactive DNA strands as a dotted line.

3 minutes A cell containing a single chromosome is placed in a medium containing radioactive phosphate, so that any new DNA strands that are formed by replication will be radioactive. The cell replicates its DNA and divides. Then the daughter cells (still in the radioactive media) replicate their DNA and divide, so that there are a total of 4 cells present. Sketch the DNA molecules in all 4 cells showing normal DNA strands as a solid line and radioactive DNA strands as a dotted line.

2 minutes A cell containing a single chromosome is placed in a medium containing radioactive phosphate, so that any new DNA strands that are formed by replication will be radioactive. The cell replicates its DNA and divides. Then the daughter cells (still in the radioactive media) replicate their DNA and divide, so that there are a total of 4 cells present. Sketch the DNA molecules in all 4 cells showing normal DNA strands as a solid line and radioactive DNA strands as a dotted line.

1 minute A cell containing a single chromosome is placed in a medium containing radioactive phosphate, so that any new DNA strands that are formed by replication will be radioactive. The cell replicates its DNA and divides. Then the daughter cells (still in the radioactive media) replicate their DNA and divide, so that there are a total of 4 cells present. Sketch the DNA molecules in all 4 cells showing normal DNA strands as a solid line and radioactive DNA strands as a dotted line.

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It’s Time to Start Class! E =MC2

Answer