Prokaryotic Genome Evoluton

Question 1

Prokaryote

Answer 1

Unicellular 
Lacks nucleus
Lacks mitochondria
Lacks membrane bound organelles
Have ribosomes

Question 2

Pangenome

Answer 2

All genes that are present in all individuals/populations of a species
-core + accessory genome

Question 3

Core genome

Answer 3

All genes that are common between individuals/populations of a species

Question 4

Accessory genome

Answer 4

All genes that are present in only a subset of individuals/populations of a species

Question 5

Genes moved nuclear genome can be recognized by

Answer 5

Homology to bacterial genes
Different GC content
Lack of introns

Question 6

Nonorthologous gene displacement

Answer 6

Genes that are dissimilar in sequence perform the same function

Question 7

Selectionist view on changes in GC content

Answer 7

Regards GC content as a trait that is determined by selective forces
- adaption to intrinsic/extrinsic conditions

Question 8

Changes in codon usage to explain changes in GC content

Answer 8

Due to gene dosage of tRNAs

Question 9

Strand dependent mutation patters explaining GC content

Answer 9

Certain types of point mutations occur at different frequencies in leading and lagging strands
Leads to strand dependent substitution patterns