The behavior of chromosomes during meiosis and subsequent fertilization is responsible for most of the variation that arises in each generation. Which of these processes is included in that variation? 1. Metaphase chromosomal assortment in mitosis 2. Crossing over of replicated homologues from each parent in meiosis 3. Hybridization of random fertilization during cross breeding two species 4. Range expansion of populations 5. All of the above are true

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A:

Q: The sequence of processes shown in the photographs above is known as Select one: a. mitosis b.…

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Q: 4N 2N A 4N (2N or 4N (2N ploidy B 2N >(1N) IN(IN) (1N) IN + + (IN) 2N

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Q: How is the process of meiosis responsible for variation among species? What mechanisms are involved…

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Q: plyploidy?

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A: Reproduction is defined as the producing of young ones from the parents.

Q: Which of the following is true of polyploidy?

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Q: ree with) un-selected.) diploid cell from a human being with one chromosome missing a romosome…

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Q: What biological mechanism allows humans with an XXX genotype to be healthy individuals?

A: Answer. Option (c) X inactivation

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A: Meiosis reduces the number of chromosomes material to half.

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Q: Which of the following occurs because of the law of independent assortment? a Two heterozygous…

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Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.