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Higher Biology Two

SQA HIGHER BIOLOGY UNIT 2 NAB REVISION

QuestionAnswer
What links chromotid pairs? centromere
How are chiasmata formed? crossing over
in the first stage of mitosis what do both daughter cells inherit? one chromosome from each pair of homologus chromosome pairs from the parental cell
What is produced at the end of the first meiotic division? two haploid daughter cells
Name a source of genetic variation? crossing over
Name a source of genetic variation? (2) Independent assortment of chromosomes
Name a source of genetic variation? (3) Fusing of gametes in sexual reproduction
What does meiosis result in? Four haploid daughter cells
what is formed through the fusion of a sperm and an egg cell? zygote
What is a monohybrid cross? a cross between two true breeding parents with different alleles of a single gene
Created by: e5mma
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