Biology 2e
Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 21, Problem 20RQ

Which of the following is not associated with prions?

  1. Replicating shapes
  2. Mad cow disease
  3. DNA
  4. Toxic proteins

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Which biological entity does not contain genes?   viruses   mitochondria   prions   bacteria
Which of the following self-replicating biological agents carries only one polynucleotide chain as its genetic material, does not code for any proteins, and does not have any nucleocapsid? the RNA virusoid known as hepatitis delta virusoid the single-stranded RNA virus known as human immunodeficiency virus the double-stranded RNA virus known as rotavirus the double-stranded DNA virus known as pandoravirus the RNA viroid known as citrus exocortis viroid       The human precancerous disorder known as xeroderma pigmentosum is caused by which of the following mutagenic conditions? thymine dimers demethylation deacetylation depurination deamination      7. Who discovered that DNA synthesis in the intact chromosomes of rapidly-growing bacterial cells is continuous on the leading strand, but discontinuous on the lagging strand? Rosalind Franklin and Maurice Wilkins Matthew Meselson and Franklin Stahl Erwin Chargaff and Arthur Kornberg Reiji Okazaki and Tuneko Okazaki James Watson and…
Why are viruses NOT considered living organisms? They are not composed of cells They cannot reproduce on their own They have no nucleus all of the above

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Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY