help answering super easy questions

I don’t understand this Biology question and need help to study.

1.

Which of the following is a reason that meiosis might occur in a living organism?

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A man with an extra X chromosome has ____________________ Syndrome. This results when __________________ occurs during meiosis.

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What is the final result of meiosis?

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A tumor that lacks the ability to spread to neighboring tissues is called _________ while a tumor that is able to metastasize is called ___________________.

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Traits that follow which of the following inheritance patterns tend to occur equally among men and women but “skip” generations?

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In chihuahuas, a single gene controls the size of the ears, the length of the tail, and the sharpness of the teeth. Since a single gene regulates multiple characteristics, this is an example of:

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Juan is red-green colorblind. Juan’s father is also colorblind but his mother is not. Did Juan inherit his colorblindness from his mother or from his father?

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In dragons, having green scales is dominant (G) and having blue scales is recessive (g). A dragon that is heterozygous for scale color would have the genotype _____________ and the phenotype ______________.

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