Chapter 11: Meiosis and Sexual Reproduction

MATES Biotechnology, Sprague 2024

haploid vs. diploid

• haploid: one set of chromosomes (gametes)

• diploid: two sets of chromosomes (body cells)

what is crossing over?

when homologues exchange chromosomal material at chiasmata; genetic recombination/synapsis

how many rounds of division happens in meiosis?

two rounds: the first splits homologous chromosomes, second the sister chromatids

what happens in synapsis?

pairing of homologues to cross over/physically exchange parts

when does crossing over take place?

early prophase I of meiosis