If predictions about a hypothesis are not supported by data,
A. Further tests can be conducted
B. The hypothesis is not supported
C. The hypothesis can be modified
D. All of the above
Ans: D. All of the above
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Randomly selecting samples of experimental
units from an environment can result in a. sampling error. b. blind testing. c. evidence. d. experimental design. e. consensus
"Double fertilization" produces nutrient tissue
by the union of a. two egg nuclei and one sperm nucleus. b. two sperm nuclei and one egg nucleus. c. two sperm nuclei and two egg nuclei. d. one sperm nucleus and endosperm mother cell nuclei. e. two sperm nuclei and one endosperm mother cell nucleus
Refer to Table 8.2. If a frameshift mutation occurred in the sequence of bases shown below, what would be the sequence of amino acids coded for?
A) leucine-arginine-lysine-alanine B) asparagine-arginine-lysine-alanine C) asparagine-cysteine-valine-serine D) Translation would stop at the first codon. E) The answer cannot be determined based on the information provided.
The primary but not only process responsible for the modifications that occur in organisms over geological time is:
a. genetic mutation. b. natural selection. c. morphological (phenotypic) modification. d. increase in fitness.