RNA Chapter 13 – Flashcards
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RNA contain the sugar
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Ribose
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Unlike DNA, RNA contains
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Uracil
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3 things found in both DNA and RNA
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Phosphate groups, guanine, and cytosine
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Which nucleotide indicates the nucleic acid above is RNA?
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Uracil
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RNA is usually ------- stranded
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RNA is usually single-stranded
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Which type of RNA brings the information in the genetic code from the nucleus to other parts of the cell?
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mRNA
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Which molecules are involeced in protein synthesis?
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Messenger RNA, ribosomal RNA, and transfer RNA
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From which molecules are mRNA molecules transcribed?
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DNA
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What is produced during transcription?
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RNA molecules
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During eukaryotic transcription, an RNA molecule is formed that is
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Complementary to part of one strand of DNA
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What does figure show?
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d. The genetic code
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How many nucleotides are needed to specify three amino acids?
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c. 9
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There are 64 codons and 20 amino acids. Which of the following is true?
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a. Several different codons can specify the same amino acid
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In Figure 13-3, which amino acid is specified by the mRNA code CCC?
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d. Pro
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According to Figure 13-3, which code specifies the same amino acid as UAU?
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UAC
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A promoter is a
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binding site for RNA polymerase.
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What happens during translation?
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The cell uses a messenger RNA code to make proteins.
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Which of the following terms is LEAST closely related to the others?
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spindle fiber
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During translation, the type of amino acid that is added to the growing polypeptide depends on the
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codon on the mRNA and the anticodon on the tRNA.
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A protein is being assembled when
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RNA is being translated.
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Genes contain instructions for assembling
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proteins.
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Which is the correct sequence of the transfer of information in most organisms?
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DNA to RNA to protein
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Which of the following best describes what happenes during gene expression
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A cell reads the instructions in DNA and builds a protein based on these instructions.
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In eukaryotes
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transcription takes plce in the nucleus and translation takes place in the cytoplasm
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The three types of RNA are--------RNA, ------- RNA, and ------- RNA.
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messenger RNA, transfer RNA, and ribosomal RNA.
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DNA molecules ------ the nucleus RNA molecules ----- the nucleus
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dna- stay
rna-leave
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During DNA replication, ------ strands of DNA serve as a template.
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both
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A codon consists of --- nucleotides.
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3
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the anti codon AGA is complementary to the mRNA codon ----
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UCU
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In Figure 13-6, A, B, and C are three types of---
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RNA
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In RNA, -------- is the sugar in the nucleotide.
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ribose
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A eukaryotic gene consists of --------, a(an) --------, and the ------- that is transcribed.
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regulatory regions, promoter, nucleotide sequence
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T/F
During transcription, RNA Polymerase binds to DNA and assembles nucleotides into a strand that is complementary to the DNA template.
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true
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T/F
The order of nitrogenous bases in DNA determines the order of Amino Acids in proteins.
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true
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T/F
The codon that signals the end of a growing polypeptide is called a(an) stop codon
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true
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T/F
The tRNA bases called the anticodons are complementary to three consecutive nucleotides on an mRNA molecule.
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true
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T/F
Two cellular processes, transcription and translation, are the main activities described in the central dogma of molecular biology.
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true
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T/F
The codon AUG is a start codon representing the amino acid Methionine
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true
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T/F
The codon UGG is a stop codon representing the amino acid Tryptophan
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false
