Two eukaryotic organelles that are hypothesized to be the result of endosymbiosis are the ________ and the ________

A) nucleus / Golgi body
B) mitochondrion / chloroplast
C) endoplasmic reticulum / Golgi body
D) hydrogenosome / chloroplast


Answer: B

Biology & Microbiology

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After doing PCR on the same region between two individuals, you notice that each person's DNA yielded pieces of different sizes. Which of the following is the most likely explanation?

A. A mistake was done during the PCR. B. A mistake was done during the gel electrophoresis. C. This is an example of VNTRs. D. This is an example of RFLPs. E. None of the answer options is correct.

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Family, twin, and adoption studies have revealed a(n) _____________________ component to mental illnesses, such as bipolar disorder

Fill in the blank(s) with correct word

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Which of the following is NOT a contributing

factor to the great diversity of tropical rainforests?

a. warm temperatures year round b. structural complexity c. their old age d. nutrient poor soils e. all of these are contributing factors

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