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Avery’s experiments showed that bacteria are transformed by
DNA is copied during a process called
In eukaryotes, DNA
RNA contains the sugar
Which RNA molecule carries amino acids?
What is produced during transcription?
What does Figure 12-6 show?
Figure 12-6
8.What happens during the process of translation?
9.Genes contain instructions for assembling _________?
10.A mutation that involves a single nucleotide is called a(an)__________?
11.A promoter is a __________?
12.In E. coli, the lac operon controls the_________?
13.What are the parts of a Eukaryotic Chromosome?
14.Hox genes determine an animal’s __________?
Completion
Complete each statement.
15. According to the principle of ____________________, hydrogen bonds can form only between adenine and
thymine, and between guanine and cytosine.
16. Chromatin contains proteins called ____________________.
17. In Figure 12-7, What are A, B, and C ? ____________________.
Figure 12–7
18. After introns are cut out of an RNA molecule, the remaining ____________________ are spliced back
together to form the final messenger RNA.
19. A mutation in a series of genes, called the ____________________, can change the organs that develop in
specific parts of an embryo.
Short Answer
20. What is a bacteriophage?
21. What are the three main parts of an RNA nucleotide?
22. What must happen to a DNA molecule before RNA polymerase can make RNA?
23. What causes translation to stop?
24. What is a mutation?
Other
USING SCIENCE SKILLS
Figure 12–8
25. What general type of mutation results from processes A, B, C, and D in Figure 12-8?
26. Comparing and Contrasting Contrast process A and process B in Figure 12-8.
27. Interpreting Graphics During which process in Figure 12-8 does a segment of a chromosome become
oriented in the reverse direction?
30. Interpreting Graphics In Figure 12-8, which process produces two chromosomes with translocations?