Introduction and Chromosomal Basis of Heredity Flashcards
1
Q
Chromosomes
A
Homologous chromosome: one of a matching pair of chromosomes, one inherited from each parent
2
Q
Alleles
A
The gene for a particular inherited character resides at a specific locus (position) on homologous chromosome. .
3
Q
Dominant
A
a term applied to the trait (allele) that is expressed irregardless of the second allele.
4
Q
Recessive
A
a term applied to a trait that is only expressed when the second allele is the same
5
Q
Types of DNA
A
A, B and Z DNA.
6
Q
A
A
right-handed, short and broad, 2.3 A, 11bp per turn
7
Q
B
A
right-handed, longer and thinner, 3.32 A, 10bp per turn
8
Q
Z
A
left-handed, longest and thinnest, 3.8 A, 12bp per turn
9
Q
Five Phases of the Cell Cycle
A
G1 - primary growth phase S – synthesis; DNA replicated G2 - secondary growth phase collectively these 3 stages are called interphase M - mitosis C - cytokinesis
