Which of the following is true regarding hagfish and lampreys?

A. They are characterized by a bony lower
jaw.
B. They are invertebrates.
C. They are bony fish.
D. They are vertebrates.


D

Biology & Microbiology

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After identifying a specific protein associated with a medical problem, the corresponding gene can be identified with a , which is radioactively or fluorescently tagged.

A. DNA probe B. short tandem repeat C. heterozygous genotype D. pseudogene E. homologous chromosome

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The cells responsible for clotting are

A. leukocytes. B. erythrocytes. C. platelets. D. chondrocytes. E. osteocytes.

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C14 is a radioactive isotope, and due to its predictable

__________ rate it is used to date organic fossils. Fill in the blank(s) with the appropriate word(s).

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Which substance will help in seed germination and indicates to the plant that the stem must elongate to reach the light?

What will be an ideal response?

Biology & Microbiology