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Biology-Related Homework Help Cell Biology Topic started by: rlcdiver11 on Nov 2, 2012



Title: Which of the following statements about DNA structure & replication in procaryotes& cell organelles is correct?
Post by: rlcdiver11 on Nov 2, 2012
a) there is a single circular chromosome composed of DNA
b) Chromosomes are wound around nucleosome cores
c) Replication begins at multiple initiation sites
d) chromosomes line up in the center of the cell during replication
e) Cell organelle DNA encodes all of the proteins the organelle needs


Title: Which of the following statements about DNA structure & replication in procaryotes& cell organelles is correct?
Post by: cabrady on Nov 2, 2012
d) is the answer as during mitosis/ meiosis the chromosome pairs line up along the equator of the cell and ready to be split to either side of the cell for 2 identical cells in mitosis or 4 gametes in meiosis.


Title: Which of the following statements about DNA structure & replication in procaryotes& cell organelles is correct?
Post by: lesliepeng on Nov 2, 2012
The person above is incorrect, the chromosomes are already replicated by the time they line up at the centre. [Metaphase in Meiosis & Mitosis]

The correct answer is E. The nucleus makes the DNA which has information to make the proteins/tells the cell what to do with the proteins


Title: Which of the following statements about DNA structure & replication in procaryotes& cell organelles is correct?
Post by: leslieandrus on Nov 2, 2012
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