If the process of protein synthesis in a cell is analogous to a politician's speech being written down by a reporter and then converted into a different language before being published, then to what does the initial step (being written down by a
reporter) correspond? A) transcription
B) translation
C) genetic recombination
D) cloning
A
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The principle underlying how salmon were genetically engineered to grow faster is the
A) removal of a gene responsible for feeling full after eating. B) replacement of inducible to constitutive hormone production. C) resistance to bacterial infections which waste metabolic energy in the salmon to fight off. D) addition of genes to enhance blood circulation and tissue development.
A biologist discovers a new species of organism adapted to living in a deep underground cavern that provides no source of free water. The organism is eyeless and covered by fur, and it has a four chambered heart with a closed circulatory system. What excretory system adaptations to this extreme environment might the biologist expect to find?
A. very long malpighian tubules B. very short malpighian tubules C. metanephridia with a large number of nephridiopores D. nephrons with long loops of Henle E. nephrons with short loops of Henle
The age structure diagram for countries with a
2.1 total fertility rate is indicated by a. A. b. B. c. C. d. D. e. none of these.
Different, or alternative, forms of the same gene are
a. genetomorphs. b. alleles. c. mutants. d. chromatids. e. homologous.