Nucleic Acids And Dna Synthesis

Front 1

What are the purines found in DNA/RNA?

Back 1

Adenine and Guanine

Front 2

What are the pyrimidines found in DNA/RNA?

Back 2

Thymine (DNA), Cytosine, and Uracil (RNA)

Front 3

Name the main components of a nucleotide.

Back 3

a nitrogenous base, either a purine or a pyrimidine

Front 4

What are the three main components of DNA/RNA?

Back 4

a pentose (5 carbon sugar) bound to 1 or more phosphate groups and a nitrogenous base

Front 5

Why is DNA synthesis "semi conservative" ?

Back 5

Since half of each new dsDNA is original parental DNA and the other half is newly synthesized

Front 6

before a cell can undergo cell division (e.g. mitosis in eukaryotes or binary fission in prokaryotes) itmust duplcate its DNA molecule(s) so that each daughter cell will be able to receive a copy of the
genetic information contained within its DNA... faithful DNA replication helps to ensure that both daughter cells will be _____
• the process of duplicating a DNA molecule (in whole
or in part) is known as ____ or ____

Back 6

genetically identical
DNA synthesis or DNA replication

Front 7

during DNA replication, the two strands of DNA
______so that each strand serves as a
template for the synthesis of its (new) complementary
strand

Back 7

partly separate

Front 8

the locations along a dsDNA molecule where DNA
synthesis begins are known as______

Back 8

origins of replication

Front 9

the DNA itself is made
by _____, enzymes that
synthesize DNA

Back 9

DNA polymerases

Front 10

all nucleic acid synthesis (both DNA synthesis & RNA synthesis) occurs in the ____' direction along
the newly made strand (the new strand is extended by adding
nucleotides at its 3'-end),

Back 10

5' -> 3'

Front 11

synthesis toward a replication fork is _____,
whereas synthesis away
from a replication fork is
_______.

Back 11

continuous
discontinuous

Front 12

overall, in vivo DNA synthesis is _____, _____, and ______.

Back 12

semiconservative, semidiscontinuous, and bidirectional