What is different concerning the DNA in bacterial cells as opposed to eukaryotic cells
o The amount of DNA present, whether the DNA is housed in a nucleus or not, and whether the DNA is linear or circular
• Which of these statements is true regarding cell division in the body of a growing teenaged human?
o Only a subset of cells is dividing at this point o We grow by cell division, but not all of our cells are dividing
• Dividing cells must copy their DNA
( replication ), segregate DNA and other cellular components during
( mitosis ) and split apart during
( cytokinesis)
• Our chromosomes exist as many sets of similar pairs with the EXCEPTION of our sex chromosomes o the sex chromosomes of the human female are also pairs. It is the X and Y of the male that break this rule •
As a substance absorbs heat the particles move faster so the average kinetic energy and therefore the Temperature increases. Temperature is a measurement of the average kinetic energy of the molecules in an object or system.
Answer:
Telomeres cap and protect the ends of chromosomes from degradation and illegitimate recombination. ... Abolition of telomerase activity in such cells nevertheless results in telomere shortening, a process that eventually destabilizes the ends of chromosomes, leading to genomic instability and cell growth arrest or death.
