History of genetics Flashcards
1
Q
what characteristics do the ideal organisms have in genetic research?
A
short life span, prolific, small, invertebrate, low reproductive rate.
2
Q
what are three differences between prokaryotes and eukaryotes?
A
Pros have no nucleus, cytoskeleton or membrane-bound organelles. eukes have all 3.
3
Q
3 forms of prokaryotes?
A
eubacteria (common), archaebacteria (rare) and cynobacteria (found in photosynthetic cells)
4
Q
what is independent assortment?
A
alleles of different genes assort themselves to different gametes randomly.
5
Q
what is non-independent assortment?
A
when alleles on the same chromosome are inherited together.
6
Q
what is pleiotropy?
A
when many phenotypes are controlled by one allele.
7
Q
what is epistasis?
A
when many alleles control one phenotype.
