Chapter 15a- Structure, Replication, and Organization Flashcards
(26 cards)
What Controls Heredity? 1
Acetabularia experiments (1910s): Giant cell how many inches in size?
1 to 2
What Controls Heredity? 1
Acetabularia experiments (1910s):
Regeneration experiments:
Graft holdfast-
Mixed cap
What Controls Heredity? 1
Acetabularia experiments (1910s): Regeneration experiments: Exchange holdfasts- caps change to
Match new holdfast
What Controls Heredity? 1
Acetabularia experiments (1910s): Regeneration experiments: Exchange nucleus- caps change to?
Match new nucleus
What Controls Heredity? 1
Acetabularia experiments (1910s):
Regeneration experiments:
Conclusion- nucleus controls?
Phylogenetic traits
What Controls Heredity? 2
Streptococcus pneumoniae (1928): Two forms-
Lethal
Non lethal
What Controls Heredity? 2
Streptococcus pneumoniae (1928): Transformation experiments: Live smooth (S) injected-
Mice DIED ā ļø
What Controls Heredity? 2
Streptococcus pneumoniae (1928): Transformation experiments: Live rough (R) objected-
Mice SURVIVE šš»
What Controls Heredity? 2
Streptococcus pneumoniae (1928):
Transformation experiments:
Killed S injected-
Mice SURVIVE šš»šš»
What Controls Heredity? 3
Transformation (continued):
Live R + Killed S-
Mice DIE ā ļøā ļø
What Controls Heredity? 3
Transformation (continued):
Extracted S DNA + live R-
Mice DIE ā ļøā ļøā ļø
What Controls Heredity? 3
Conclusion- What is responsible for pathogenicity (Iļø. e. carries genetic information)?
DNA
What Controls Heredity? 4
Bacteriophage experiments (1952): Phage has protein coat, and what?
DNA core
What Controls Heredity? 4
Bacteriophage experiments (1952):
Labeling experiments:
35S labeled protein- bacteria remain what?
Nonradioactive
What Controls Heredity? 4
Bacteriophage experiments (1952):
Labeling experiments:
32P labeled DNA- bacteria become what?
Radioactive
What Controls Heredity? 4
Bacteriophage experiments (1952):
Labeling experiments:
Conclusion- DNA only contains what?
Genetic information
Locations of DNA
Prokaryotes:
Nuclear region and where else?
Plasmids
Locations of DNA
Eukaryotes:
Nucleus
Mitochondria (mtDNA) and what other two places?
Chloroplasts (cpDNA)
Kinetoplasts (kDNA)
DNA vs. RNA
Sugar backbone:
RNA= Ribose
DNA= ?
Deoxyribose
DNA vs. RNA
Bases:
RNA; G=C; A=U
DNA; G=C; A=?
T
DNA vs. RNA
Strandedness:
RNA= Single
DNA= ?
Double
DNA vs. RNA
Basic types of RNA:
mRNA
rRNA and ?
tRNA
DNA vs. RNA
Basic types of DNA?
DNA
Central Dogma
Enzyme used to break down DNA
DNA polymerase