Which of the following is found in both archaeal and eukaryotic genomes?

A. chromatin fibers
B. histones
C. heterochromatin
D. euchromatin
E. nuclear envelope


Answer: B

Biology & Microbiology

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In what way are a human and a crab similar?  

A.  Vertebrates and arthropods are deuterostomes. B.  Both have muscles that pull against rigid skeletons. C.  Both have closed circulatory systems. D.  Both have a continuous growth pattern. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about crustaceans? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

A cell that has a diploid number of 6 chromosomes has 3 chromosomes lined up in the center of the cell, each chromosome containing two joined sister chromatids. What phase of the cell cycle is this cell in?

A) Metaphase I of meiosis B) Metaphase II of meiosis C) Metaphase of mitosis D) Telophase I of meiosis 

Biology & Microbiology

Which of the four major chemicals found in cells comprise telomeres?

A) Carbohydrates B) Lipids C) Proteins D) Nucleic acids

Biology & Microbiology

Which of the following mutations would not result in antibiotic resistance?

a. Missense mutation b. Nonsense mutation c. Silent mutation d. Frameshift insertion e. Frameshift deletion

Biology & Microbiology