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Which statements are true? Explain why or why not.1 Since there are about 1013 cells in an adult human,and about 1010 cells die and are replaced each day, webecome new people every three years.2 In order for proliferating cells to maintain a rela-tively constant size, the length of the cell cycle must matchthe time it takes for the cell to double in size.3 While other proteins come and go during thecell cycle, the proteins of the origin recognition complexremain bound to the DNA throughout.4 Chromosomes are positioned on the metaphaseplate by equal and opposite forces that pull them towardthe two poles of the spindle.5 Meiosis segregates the paternal homologs intosperm and the maternal homologs into eggs.6 If we could turn on telomerase activity in all ourcells, we could prevent aging.

Which statements are true? Explain why or why not.1 Since there are about 1013 cells in an adult human,and about 1010 cells die and are replaced each day, webecome new people every three years.2 In order for proliferating cells to maintain a rela-tively constant size, the length of the cell cycle must matchthe time it takes for the cell to double in size.3 While other proteins come and go during thecell cycle, the proteins of the origin recognition complexremain bound to the DNA throughout.4 Chromosomes are positioned on the metaphaseplate by equal and opposite forces that pull them towardthe two poles of the spindle.5 Meiosis segregates the paternal homologs intosperm and the maternal homologs into eggs.6 If we could turn on telomerase activity in all ourcells, we could prevent aging.

Biochemistry
Biochemistry
6th Edition
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Reginald H. Garrett, Charles M. Grisham
Chapter28: Dna Metabolism: Replication, Recombination, And Repair
Section: Chapter Questions
Problem 19P: Figure 28.11 depicts the eukaryotic cell cycle. Many cell types “exit� the cell cycle and...
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Which statements are true? Explain why or why not.
1 Since there are about 1013 cells in an adult human,
and about 1010 cells die and are replaced each day, we
become new people every three years.
2 In order for proliferating cells to maintain a rela-
tively constant size, the length of the cell cycle must match
the time it takes for the cell to double in size.
3 While other proteins come and go during the
cell cycle, the proteins of the origin recognition complex
remain bound to the DNA throughout.
4 Chromosomes are positioned on the metaphase
plate by equal and opposite forces that pull them toward
the two poles of the spindle.
5 Meiosis segregates the paternal homologs into
sperm and the maternal homologs into eggs.
6 If we could turn on telomerase activity in all our
cells, we could prevent aging.

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