Deserts are typically hot throughout the year and rarely have freezing temperatures
Indicate whether the statement is true or false
FALSE
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In prokaryotes, the form of RNA polymerase that can accurately initiate synthesis of RNA is called
A. the holoenzyme. B. the core polymerase. C. RNA polymerase II. D. RNA polymerase III. E. the sigma subunit.
At one end of a tRNA molecule is a sequence of 3 nucleotides called an anticodon that ____
a. signals the production of a ribosome b. signals the unwinding of the DNA coils c. initiates the movement of mRNA out of the cell nucleus and into the cytoplasm d. binds to its anti-complementary tRNA codon e. binds to its complementary mRNA codon
Different alleles that are both expressed in a heterozygote are
A) dominant. B) codominant. C) incompletely dominant. D) homozygous dominant.
Which part of the cardiac conduction system fires off impulses at the fastest rate?
a. Purkinje fibers b. Bundle branches c. AV node d. SA node e. gap junctions