Tetraploidy germinal tissuecan arise if during

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Can arise if during mitosis the chromosomes in a diploid tissue fail to segregate after replication Union of diploid gametes can produce tetraploid organisms 35 Tetraploidy separation never occurs. usually are sterile because synapsis is not uniform - gametes are aneuploid happened in fishies - and can still replicate 36 Tetraploidy A1 A2 Meiosis II A1 A2 A1 A2 Meiosis I A1 A2 A1 A1 A1 A2 A2 A2 Meiosis I A1 A2 A1 A2 Meiosis II A1 A2 37 In plants, larger chromosome numbers often lead to increased size (presumably because there is an increased amount of gene product present) Seedless varieties are polyploid 38 Hybrid species X 2n = 62 2n = 64 horse donkey ???? mule - sterile. Chromosome number of the mule: 63; n = 31 or 32. 39 “Kraus” Female mule (janet) “Blue Moon” Mule offspring! how? she must’ve made an egg with all...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online