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Genetics

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Pansy O'Hara

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Cards in this guide (8)
What is an allele

a form of a gene apex

What must happen before meiosis can begin

DNA doubles and produces sister chromatids before meiosis begins.

the chromosomes must replicate

What is the term for the two sets of chromatids formed in the parent cell

Tetrad

What would happen if crossing over didn't happen during meiosis in humans

If crossing over didn't happen during meiosis in humans, the haploid daughter cells would all have the same genes. The crossing over creates variation and causes each daughter cell to have slightly different genes.

How are meiosis and mitosis different

mitosis only has to do with celluar reproduction

meiosis has to do with sex cells reproducing
Mitosis creates new cells that are used for development, repair, asexual reproduction and growth. Meiosis creates cells in order for organisms to reproduce sexually.

What is the probability that a father produces a gamete with the allele for attached earlobes if he has one allele for detached earlobes and one allele for attached earlobes

50%

The number of possible genetically different gamete for an organism quals 2n where n is the number of pairs of chromosomes if an organism has six pairs of chromosomes how man different gametes can it

64 - Apex

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