Bio unit 6.1 Flashcards


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1

Bacterial Conjugation

one bacteria donor cell donates a copy of its plasmid to a recipient cell via pilus

2

Pilus

bridge connecting two cells

3

Bacterial Trasduction

foreign DNA is introduced to a cell via a viral vector

4

Bacterial Transformation

DNA from the environment is taken into the cell and incorporated into its genome as a plasmid

5

Griffith and McCarty's study

showed DNA was a transforming agent

6

Bacteriophage

viruses that infect bacterial cells (use transduction)

7

Nucelotide components

nitrogenous base, 5 carbon sugar, phosphate group

8

Bond that joins nucleotides

hydrogen bonds

9

Chargaff's rule

nucleotide pairs

A=T (2 bonds)

C=G (3 bonds)

10

Purines

A, G

2 carbon rings

11

Pyrimidines

C, U, T

3 carbon rings

12

Rosalind Franklin

suggested spiral model for DNA

13

DNA structure

double helix, sugar phosphate bacbone, deoxyribose, nitrogenous bases on the inside, antiparallel, negatively charged

14

RNA structure

nitrogenous base (uracil replaces thymine), ribose, single stranded