What mutations occurred in typical icefish that prevented production of hemoglobin?

A. fragmentation of both the alpha and beta genes

B. deletion of the alpha gene and fragmentation of the beta gene

C. deletion of both the alpha and beta genes

D. fragmentation of the alpha gene and deletion of the beta gene

E. destruction of red blood cells in the bone marrow


D. fragmentation of the alpha gene and deletion of the beta gene

Biology & Microbiology

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The Crenarchaeota and Euryarchaeota are

A. now classified with the bacteria based on genomic sequence analysis. B. the two phyla of the Archaea. C. very closely related based on 16S rRNA comparisons. D. photosynthetic Archaea.

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Consider the following two statements about protein structure: 1) All polypeptides have tertiary structure. 2) All proteins have quaternary structure. Determine which one of the statements below is correct

A. Statements 1) and 2) are both true. B. Statements 1) and 2) are both false. C. Statement 1) is true; statement 2) is false. D. Statement 1) is false; statement 2) is true.

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You may have heard of myosin, a molecule that makes up the bulk of skeletal muscle. It turns out there are many types of myosin, produced from many different genes

These genes are part of a huge superfamily of genes, whose products all bind actin, hydrolyze ATP, and transduce force. All eukaryotic cells contain at least one myosin product. What type of organic molecule is myosin? A. protein B. carbohydrate C. RNA D. DNA E. lipid

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Ventilation by a relaxed individual is indicated

by a. A. b. B. c. C. d. D. e. E.

Biology & Microbiology