7.4 Study Guide Flashcards
Recombination
Taking all the possible gene versions from two parents and randomly shuffling them into offspring
Mutation
DNA that is miscopied (typo) and can end up with a gene difference.
Why is the human life cycle considered a diploid-dominant
They combine with haploid cells to form diploids and gametes, Diploid allows for fertilization and reproduction
Synapsis
pairing of homologous chromosomes
When does crossing over occur
Prophase I
Chromosomes are reduced by half at the end of ____
Meiosis I
The second division of Meiosis separates ____
Sister chromatids
In meiosis, will the daughter cells look identical to the parent cells
No, due to crossing over and genetic variation, all daughter cells will look unique.
At the end of Meiosis, how many daughter cells will be produced
4
About how many chromosomes type possibilities are there in any zygote
over 70 trillion
