Which of the following structures are present in both eukaryotes and prokaryotes?

A. endoplasmic reticulum
B. plasma membrane
C. mitochondria
D. nucleus
E. Golgi body


Answer: B

Biology & Microbiology

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Some microbial proteins are spliced after translation in a reaction that results in removal of one or more internal intervening sequences called exteins.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which of the following is considered a simple tissue?

a. parenchyma b. phloem c. epidermis d. xylem

Biology & Microbiology

Which type of double-stranded break repair would you expect to be used by a cell in the G2 phase of the cell cycle?

What will be an ideal response?

Biology & Microbiology

Ecosystems in the United States experience seasonality because:

A) there is a predictable seasonal solar activity cycle. B) the rotation of Earth causes a rhythmic circulation of Earth's atmosphere. C) Earth is closer to the sun in summer and farther away in winter. D) Earth is tilted with respect to the orbit around the sun. E) Earth rotates on it's axis relative to the sun.

Biology & Microbiology