DNA exits mostly as a double -stranded molecule. Because of how the strands are organized and held together by specific hydrogen bond patterns (i.e. base pairing). To replicate DNA, the two strands are seperated, and new nuclotides are brought in to base pair with each of the strands using base pairing rules. So the original strand P1 (parent 1) will be the template to form a new strand D2 (daughter 2) which will be complementary to the parent strand but not identical to it. It will, instead, be identical to the original strand P2 (which is why i numbered it "2"). The original strand P2 will be the template to form a new complementary daughter strand A1. The results is two new sets of double- stranded DNA. P1 paired with D2 and P2 paired with D1. So far, so good. Now, here is what i want you to think and write about this week: We think, early life's history, its possible (maybe even likely) that the original molecule of heredity was RNA, or something more like RNA, which is not double- stranded. In cells like ours, and even like a prokaryotes, RNA is almost always created using DNA as a templete, not RNA. So.... using the information from your lecture, textbook, and notes: Tell me how you think single- stranded RNA would have been replicated ? Think about initiation, elongation, and termination, to help you organize your hypothesis. (Hint: there are "things" that are capable of using an RNA template to replicate RNA.) (second hint: if you replicate a single strand of RNA, did you actually make a copy ?) So far, so good. Now, here is what i want you to think and write about this week: We think, early life's history, its possible (maybe even likely) that the original molecule of heredity was RNA, or something more like RNA, which is not double- stranded. In cells like ours, and even like a prokaryotes, RNA is almost always created using DNA as a templete, not RNA. So.... using the information from your lecture, textbook, and notes: Tell me how you think single- stranded RNA would have been replicated ? Think about initiation, elongation, and termination, to help you organize your hypothesis. (Hint: there are "things" that are capable of using an RNA template to replicate RNA.) (second hint: if you replicate a single strand of RNA, did you actually make a copy ?).

1. DNA exits mostly as a double -stranded molecule. Because of how the strands are organized and
held together by specific hydrogen bond patterns (i.e. base pairing). To replicate DNA, the two
strands are seperated, and new nuclotides are brought in to base pair with each of the strands
using base pairing rules. So the original strand P1 (parent 1) will be the template to form a new
strand D2 (daughter 2) which will be complementary to the parent strand but not identical to it. It
will, instead, be identical to the original strand P2 (which is why i numbered it "2"). The original
strand P2 will be the template to form a new complementary daughter strand A1. The results is
two new sets of double- stranded DNA. P1 paired with D2 and P2 paired with D1.
So far, so good. Now, here is what i want you to think and write about this week:
We think, early life's history, its possible (maybe even likely) that the original molecule of heredity
was RNA, or something more like RNA, which is not double- stranded. In cells like ours, and even
like a prokaryotes, RNA is almost always created using DNA as a templete, not RNA.
So.... using the information from your lecture, textbook, and notes: Tell me how you think single-
stranded RNA would have been replicated ? Think about initiation, elongation, and termination, to
help you organize your hypothesis. (Hint: there are "things" that are capable of using an RNA
template to replicate RNA.) (second hint: if you replicate a single strand of RNA, did you actually
make a copy ?)
So far, so good. Now, here is what i want you to think and write about this week:
We think, early life's history, its possible (maybe even likely) that the original molecule of heredity
was RNA, or something more like RNA, which is not double- stranded. In cells like ours, and even
like a prokaryotes, RNA is almost always created using DNA as a templete, not RNA.
So.... using the information from your lecture, textbook, and notes: Tell me how you think single-
stranded RNA would have been replicated ? Think about initiation, elongation, and termination, to
help you organize your hypothesis. (Hint: there are "things" that are capable of using an RNA
template to replicate RNA.) (second hint: if you replicate a single strand of RNA, did you actually
make a copy ?)