5 which of the following statements is correct a

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Human Heredity: Principles and Issues
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Chapter 12 / Exercise 8
Human Heredity: Principles and Issues
Cummings
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5. Which of the following statements is correct: (a) microRNAs bind DNA and block transcription (b) microRNAs bind mRNA and block translation (c) microRNAs bind ribosomal RNA and block translation (d) All of the above
6. Organisms vary considerably in genome size. Which of the following explains most of this variation:
7. You are studying crickets and notice that individuals have one of two distinctive wing phenotypes (short-winged or long-winged). From this, you can confidently conclude:
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Human Heredity: Principles and Issues
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Chapter 12 / Exercise 8
Human Heredity: Principles and Issues
Cummings
Expert Verified
(c) The trait must be polyphenic (d) All of the above (e) None of the above 8. You are studying snails and find that individuals have shells that either coil to the right or the left. Which of the following is/are the most plausible explanation(s) for this variation?
9. Polyphenic traits are an example of: (a) phenotypic plasticity (b) quantitative trait loci (c) simple genetic polymorphism (d) Dominant traits
10. Horizontal gene transfer:
11. DNA methylation:
12. Which of the following is involved in pre-transcriptional gene regulation:
13. Trans-acting regulatory elements: (a) are typically adjacent to genes they regulate (b) are typically far away from genes they regulate (c) include transcription factors (d) a and c are correct (e) b and c are correct
Test bank, Chapter 6 1. Tasmanian devils once inhabited most of present day Australia, but only an isolated population on the island of Tasmania has survived to present day. Which of the following processes has likely affected Tasmanian devils as a result of this history:
2. The effectiveness of selection on an allele depends in part on:
3. Inbreeding:
4. Genetic drift:

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