CH.10 Sec.1,2 & 3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are the main functions of DNA? | show 🗑
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| Identify the types and locations of covalent bonds and hydrogen bonds in a DNA molecule. | show 🗑
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| List the base-pairing rules. | show 🗑
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| show | Helicase enzymes separate the two nucleotide chains starting at the replication fork. Then DNA polymerase moves along the separated chains of DNA; new chains of DNA are assembled using nucleotides in the surrounding medium.
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| show | The backbone would appear uneven, similar to the appearance of a roller coaster.
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| Define transcription. List the main steps involved in this process. | show 🗑
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| In what ways does the structure of RNA differ from that of DNA? | show 🗑
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| show | Consists of RNA nucleotides in the form of a single uncoiled chain; carries genetic information from the DNA in the nucleus to the cytosol of a eukaryotic cell
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| show | 1. Initiates transcription by binding to promoter, DNA molecule in region splits. 2. Attaches to first DNA nucleotide of template chain. Begins adding complementary RNA nucleotides to new molecule. 3. Termination signal-RNA polymerase releases DNA & RNA
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| show | Accuracy of the genetic message is assured by complementary base pairing.
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| Transcription. | show 🗑
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| Translation. | show 🗑
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| Codon. | show 🗑
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| show | A set of three bases complementary to the codon.
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| rRNA. | show 🗑
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| show | Consists of a single chain of about 80 RNA nucleotides folded into a hairpin shape that binds to specific amino acids
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| Significance of the start codon and the stop codons. | show 🗑
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| Do all polypeptides begin with the amino acid coded for by the start codon? | show 🗑
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| show | Allows an amino acid at one end to be positioned in a polypeptide when the anticodon at the other end of the tRNA pairs with a codon.
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Created by:
bio-williamson