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Genetics

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Rodrigo Schoen

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Cards in this guide (11)
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

Which would most likely decrease the genetic variation in the human population

Crossing over occurring less often during meiosis

Why did Mendel study such a large sample of pea plants to determine the probability of inheritance

The more samples you use, the closer your results will match probability.

What is true of the allele pair of someone with a genotype TT

The allele pair of someone with a genotype TT is homozygous dominant.

What is a true statement about Y chromosomes

Only men have them.

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.

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

Which is an example of codominance A. A person with blue eyes and a person with brown eyes mate and have a child with brown eyes. B. A sheep with white fur and a sheep with black fur mate and produce

An example of codominance would be a cow with red hair and a cow with white hair reproducing and have a cow with both red and white hair.

A scientist uses material in her lab to separate dna fragments by size .what process is she using

Gel electrophoresis.

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