A fragment of DNA or RNA, labeled with a tracer, used for genetic studies is called a ________
a. probe
b. genome
c. cloning vector
d. chromosome
e. nucleotide
a
Biology & Microbiology
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Which cnidarian structures would be involved in mounting a defense against predation? Check all that apply.
_____ cnidocytes. _____ nematocysts. _____ cnidocils. _____ gastrovascular cavity. _____ mesoglea.
Biology & Microbiology
In horses, rodents, and lagomorphs, the digestion of cellulose by microorganisms takes place in the
A. duodenum. B. reticulum. C. cecum. D. omasum. E. abomasum.
Biology & Microbiology
Which aquatic ecosystem is known as the
marine nursery?
a. coral reef b. hydrothermal vents c. coral reefs d. estuary e. seamounts
Biology & Microbiology
What do DNA and RNA have in common?
A. Both contain deoxyribose. B. Both are composed of nucleotides. C. Both form double helices. D. They are composed of the same nucleotides.
Biology & Microbiology