A photomicrograph of onion root tip cells during mitosis is shown. Which phases of mitosis are occurring in the cells X and Y? A Cell X is in prophase; Cell Y is in anaphase B Cell X is in telophase; Cell Y is in metaphase C Cell X is in prophase; Cell Y is in telophase D Cell X is in metaphase; Cell Y is in anaphase

the  frequency of a wave represents  the number of wavelengths that pass a specific point per second. the unit for  frequency  is hertz (hz).

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what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

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d.  

there was a variety of food available on island x, but there were only large seeds and nuts on island y.