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Flashcards in ch8 Deck (13)
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1

bacteriophage

takes over a bacterium's genetic machinery and directs it to make more viruses.

2

nucleotide

the small units or monomers that make up DNA

3

double helix

in which 2 strands of DNA wind around each other like a twisted ladder

4

base pairing rules

thymine always pair with adenine
cytosine always pair with guanine

5

replication

the process by which DNA is copied during the cell cycle

6

DNA polymerases

a group of enzymes that bond the new nucleotides together.

7

central dogma

states that information flows in one direction

8

RNA

ribonucleic acid

9

transcription

the process of copying a sequence of DNA to produce a complementary strand of RNA

10

RNA polymerases

enzymes that bond nucleotides together in a chain to make a new RNA molecule

11

Messenger RNA (mRNA)

an intermediate message that is translated to form a protein

12

Ribosomal RNA (rRNA)

forms part of ribosomes, a cell's protein factories

13

Transfer RNA (tRNA)

brings amino acids from the cytoplasm to a ribosome to help make the growing protein