Detritus feeders remove nutrients from the food chain
Indicate whether the statement is true or false
FALSE
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When a eukaryotic gene is cloned into a bacterium, the advantage of a complementary DNA (cDNA) gene being used instead of fragments of genomic DNA is that
A. the introns have been removed from the cDNA gene but not from the genomic fragment. B. the promoter and terminator are found in the cDNA gene but not in the genomic fragment. C. the cDNA is made with the nucleotides found in the prokaryote but not in the eukaryote. D. There is no advantage to using a cDNA gene rather than a genomic fragment.
During muscle contractions,
a. the sarcomeres shorten. b. the actin filaments slide over the myosin filaments. c. the actin filaments move toward the middle of the sarcomere during contraction and away on relaxation. d. the muscle fibers thicken. e. all of these occur
Which vertebrate body system is most closely associated functionally with respiration?
a. urinary b. digestive c. endocrine d. circulatory e. integumentary
Nearly half of the human genome is composed of a noncoding DNA that can move from one chromosomal location to another. This type of noncoding DNA is/are called
A. introns. B. pseudogenes. C. microRNA genes. D. transposons. E. tandem clusters.