Which of the following is not involved in gene cloning?

A. "sticky" ends
B. restriction enzyme
C. dyes attached to nucleotides
D. vector
E. host cell


Answer: C

Biology & Microbiology

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A theory of eukaryotic cells and nuclear origin is based on endosymbioses, where an archaeal cell is thought to have engulfed a bacterium, which then donated genes that would eventually become the nuclear genome of an ancestral eukaryote.

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

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Each hemoglobin molecule carries ______ oxygen molecules.

A. 1 B. 2 C. 3 D. 4

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Which of the following is a vascular plant?

a. moss b. fern c. liverwort d. hornwort e. charophyte

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Which one of the following types of cancer kills the highest percentage of people diagnosed with the condition?

A) lung B) breast C) prostate D) skin E) colon

Biology & Microbiology