3.2 Flashcards
1
Q
chromosome
A
DNA molecules that carries all or part of an organism’s genetic material
2
Q
characteristics of prokaryote chromosomes
A
- single, circular
- naked DNA
- may have plasmids
- located in the nucleoid
- haploid
3
Q
characteristics of eukaryote chromosomes
A
- multiple, linear
- DNA associated with histone proteins
- never has plasmids
- located in the nucleus
- diploid
4
Q
chromosome structure
A
- one or two identical chromatids (each containing a single DNA molecule
- second chromatid as a result of the S-phase
- centromere: where spindle fibres and sister chromatids attach
5
Q
homologous chromosomes
A
- two chromosomes of a pair
- same genes
- different alleles
