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AP Bio 5. Ch. 13-15

QuestionAnswer
Explain the difference in total chromosomes between a somatic cell and gamete. 24 vs 23, gametes only have 1 sex chromosome instead of 2
What phase does crossing over occur. Prophase 1
When does independent assortment occur metaphase 1
Define pleitrophy the expression of multiple traits by a single gene
Define polygenic inheritance (2 examples) characteristic influenced by two or more genes. (height, skin color, hair color, eye color)
What is a linkage map and what do map units represent? closer=more likely to be linked, never 100%, small more likely
If non-disjunction occurs during meiosis 1 what are the expected outcomes for the 4 gametes. 2 with extra chromosomes 2 with - chromosomes
If non-disjunction occurs during meiosis 2 what are the expected outcomes for the 4 gametes. 2 normal 1 extra 1 negitive
what allows sister chromatids to separate and in what phase release of cohesion at centromeeres jn Ana 2
Created by: ewils
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