Semiconservative DNA replication refers to the fact that _____
1.every A will be matched up with a T on the opposite strand
2.children inherit a mix of genes from both parents
3.the amount of A nucleotides always equals the amount of T nucleotides, and C nucleotides equal G nucleotides.
4.one strand of each parent DNA helix ends up in each new molecule
4
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Which of the following is a unique characteristic of oysters and mussels?
a. secreting nacre around foreign particles b. having tusk shells buried in the sand c. using beak-like jaws to catch prey d. living inside multi-chambered shells
Of the following statements, which does not correlate a type of RNA with its function?
A. Ribosomal RNA is part of the ribosome. B. Transfer RNA functions to carry amino acids to the ribosome. C. Ribosomal RNA functions as a catalyst to bind amino acids into proteins. D. Messenger RNA carries the code used to make a protein. E. Complementary RNA reorders the amino acids to insure their correct sequence.
Four of the five answers listed below are parts of the central nervous system. Select the exception
a. spinal cord b. medulla c. ganglia d. cerebellum e. cerebrum
Refer to Figure 20-2. The type of speciation mechanism that occurred between the Poo-uli and the Apapane is most likely:
a. allopatric speciation.
b. allopolyploidy.
c. sympatric speciation.
d. punctuated equilibrium.
e. macroevolution.