A mutation that is characterized by a change in the DNA sequence, but no change in the resulting protein sequence, is a
A) frameshift mutation.
B) missense mutation.
C) silent mutation.
D) nonsense mutation.
C) silent mutation.
A mutation that is characterized by a change in the DNA sequence, but no change in the resulting protein sequence, is a silent mutation.
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Metaphase II arrest is mediated by ________, a biochemical activity present in mature eggs.
Fill in the blank(s) with the appropriate word(s).
Communities with a high level of bacterial diversity are found in many habitats including soil and aquatic environments. Recent studies indicate this diversity is crucial to the functioning of these communities. The same studies have also found that phage abundance plays a critical role in the maintenance of the bacterial diversity within these communities. Are phages a density-dependent or a density-independent regulating factor?
A. density-dependent B. density-independent Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about density-dependent versus density-independent factors affecting a community? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The cephalic end of an animal is toward its head
____________________ Indicate whether the statement is true or false.
The genotype of an organism that expresses a dominant trait can be determined by:
A: crossing the organism with a homozygous recessive organism. B: crossing the organism with a heterozygous dominant organism. C: crossing the organism with a homozygous dominant organism. D: observing the phenotype of the progeny from any cross. E: observing the genotype of the progeny from any cross.