during meiosis, the process of crossing over results in new combinations of alleles due to the fact that
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A healthy woman gives birth to a baby with infantile Tay-Sachs disease. She is surprised by this diagnosis because she does not remember meeting anyone in her family with this disease. What is the most likely explanation for this diagnosis given that infantile Tay-Sachs disease is an autosomal recessive trait?

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Cats have a gene that codes for the color of their fur.

Suppose that a certain breed of cat can have black, gray, or white fur. Black fur is dominant, white fur is recessive, and gray fur is intermediate (i.e., cats with gray fur possess one allele for black fur and one for white fur).

If a gray cat and a white cat have kittens, what phenotypes could the kittens exhibit?
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genes are located on separate chromosomes.
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Genes are located on seperate chromosomes
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genes are located in sperate chromonses
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genes are located on separate chromosomes

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genetic material is exchanged between chromosomes during this process.

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