Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337670319
Author: STARR
Publisher: Cengage
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Textbook Question
Chapter 20, Problem 2SQ
The capsid of a virion consists of ___ .
- a. DNA
- b. RNA
- c. protein
- d. lipids
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Chapter 20 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 20 - Bacteriophage-Inspired Antibiotics Although...Ch. 20 - Bacteriophage-Inspired Antibiotics Although...Ch. 20 - Bacteriophage-Inspired Antibiotics Although...Ch. 20 - The genome of ___ can be either RNA or DNA. a. a...Ch. 20 - The capsid of a virion consists of ___ . a. DNA b....Ch. 20 - Bacteriophages kill their host quickly by ______ ....Ch. 20 - The genetic material of HIV (a retrovirus) is...Ch. 20 - Prob. 5SQCh. 20 - Prob. 6SQCh. 20 - Prob. 7SQ
Ch. 20 - Bacteria that serve as decomposers are ___ . a....Ch. 20 - Prob. 9SQCh. 20 - Formation of a(n) ___ allows some soil bacteria to...Ch. 20 - _____ in the stomach of a cow release methane. a....Ch. 20 - A plasmid is a circle of ___ . a. RNA b. DNA c....Ch. 20 - Prob. 13SQCh. 20 - Prob. 14SQCh. 20 - Prob. 15SQCh. 20 - Prob. 1CTCh. 20 - Adenoviruses that cause colds do not have a lipid...Ch. 20 - The antibiotic penicillin acts by interfering with...Ch. 20 - Raw red alga of the genus Porphyra is part of a...
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- A cell with a Barr body is______ . a. a bacterium c. from a female mammal b. a sex cell d. infected by the Barr virusarrow_forwardWhy must a new flu vaccine be manufactured annually? A.) The flu causes mutations in the host cell DNA. B.) Sexual reproduction between flu viruses creates new strains. C.) The genes for the proteins on the exterior of the flu virus mutate frequently. D.) The flu virus develops methods to break down the vaccine.arrow_forwardVirusesa. are usually photosynthetic.b. consist of a single cell.c. consist of DNA or RNA and a protein coat.d. consist of ATP and a lipid coat.arrow_forward
- Prions “replicate” by _____. A) replicating their RNA genome within the cytoplasm B) converting normally-folded versions of the protein into misfolded version C) inserting their genome into the host cells chromosome where it will continue to divide indefinitely D) using reverse transcriptase to copy their RNA genome into a complementary copy of DNAarrow_forwardThe outer covering of a virion is called the ___. capsid cell membrane cell wall capsulearrow_forwardSome viruses poke holes in the nuclear envelope to enter the nucleus and attach to a chromosome. They would pass through in order: a. the nuclear lamina and then two membranes b. the nuclear lamina and then a membrane c. a membrane, the nuclear lamina, and then another membrane d. a membrane and then the nuclear lamina e. two membranes and then the nuclear laminaarrow_forward
- Some______ enter and replicate inside human cells. a. apicomplexans c. trypanosomes b. water molds d. ciliatesarrow_forwardBinary fissiona. is a form of asexual reproduction.b. is a way for bacteria to reproduce.c. begins with a single mother cell and produces two genetically identical daughter cells.d. is all of the above.arrow_forwardMost viruses use their own virally encoded: a. DNA/RNA polymerase b. Endoplastmic reticulum c. Ribosomes d. Mitochondriaarrow_forward
- Many viruses enter host cells through receptor-mediated endocytosis, What is an advantage of this entry strategy? A. The virus directly enters the cytoplasm of the cell B The virus only enters its target host cell type. C. The virus is protected from recognition by white blood cells. D. The virus can directly inject its genome into the cell's nucleus.arrow_forwardWhich of these is true of prions?a. They are small RNA viruses.b. They replicate in the nucleus.c. They lack protein.d. They cause death of brain cells.arrow_forwardViruses are acellular because a. they are biological entities that do not have a cellular structure. b. they are known as virions that obtain their genetic materials from their host c. they are only fragments of non living material. d. None from choices a-carrow_forward
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