Deck 1 Flashcards
Mendel’s first law of segregation
One allele of each gene ends up in each new gamete formed as the alleles segregate from each other
Mendel’s second law of independent assortment
Only true for unlinked genes. Alleles of different genes (on different chromosomes) assort independently of one another
Meiosis 1 is when
Homologous chromosomes segregate
Meiosis 2 is when
Sister chromatids segregate
Linkage disequilibrium is
Occurrence in a population of 2 linked alleles together more often than chance would dictate
Synapsis (or syndesis)
pairing of 2 homologous chromosomes during meiosis
Homologous chromosome pairing facilitated by? 3/4 points
Meiotic recombination, chiasma formation. Synaptonemal complex zipper. Rabl and bouquet clustering
Bouquet formation is
Telomere clustering in early meiotic prophase (at the inner surface of the nuclear envelope proximal to the spindle pole body) important for pairing
Rabl
Centromere clustering, important for pairing in meiosis