EBK BIOLOGY
5th Edition
ISBN: 9780133996807
Author: Maier
Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)
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Chapter 9, Problem 5LTB
Summary Introduction
Introduction:
Every organism present in nature contains genetic material. There are two types of genetic material. These are DNA and RNA. The DNA stands for “Deoxyribonucleic acid” and RNA represents “Ribonucleic acid”. tRNA is a type of RNA.
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DNAT A C C G C T C C G C C G T C G A C A A T A C C A C T
mRNA ______ ______ ______ ______ ______ ______ ______ ______ ______
AA ______ ______ ______ ______ ______ ______ ______ ______ ______
This molecule:
-is involved in translation
-may bind to the “start” codon on mRNA
-has an amino acid attachment site at one end
-has an anticodon at the other end ______
DNAT A C C A C C C C C G T A T G G C T G G G A A T A T C
mRNA ______ ______ ______ ______ ______ ______ ______ ______ ______
AA ______ ______ ______ ______ ______ ______ ______ ______ ______
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- Mutated DNA Sequence #3 T A C A C C T T A G C G A C G A C T … What’s the mRNA sequence? (Circle the change) What will be the amino acid sequence? Will there likely be effects? What type of mutation is this? ________________________________ Mutated DNA Sequence #4 T A C A C C T T G G C G A C T A C T … What’s the mRNA sequence? (Circle the change) What will be the amino acid sequence? Will there likely be effects? What type of mutation is this? ______________________________arrow_forwardMutated DNA Sequence #2 T A C G A C C T T G G C G A C G A C T … What’s the mRNA sequence? (Circle the change) What will be the amino acid sequence? Will there likely be effects? What type of mutation is this? ________________________________arrow_forwardDuring transcription, the nitrogen base adenine on the DNA bonds with the nitrogen base ______________ on the messenger RNAarrow_forward
- DNA gene TAC AGC TTT mRNA codon (No thymine in RNA!) tRNA anticodon (No thymine in RNA!) Amino acid Use the mRNA with the Genetic Code. Use the mRNA with the Genetic Code. Answer the questions below. Questions How many nucleotides would be needed to code for a protein that has 100 amino acids? Using the Genetic Code in Table 6.3, write all of the possible codons that signal the start and end of a gene. Start: End: An amino acid sequence of a protein molecule includes methionine, lysine, serine and glycine. Show each different codon that could result in each of these amino acids. You will have more than one codon for all of them except methionine. Amino Acids All Possible Codons Methionine Lysine Serine (Look carefully. There are six possibilities) Glycine Question 3 illustrates the redundant nature of the genetic code. Can you think of an advantage of having several codons that all code for the…arrow_forwardBriefly describe the function of the following in protein synthesis. a. rRNA b. tRNA c. mRNAarrow_forwardIndicate in which category, transcription or translation, each of the following functions belongs: RNA poly-merase, ribosomes, nucleotides, tRNA, pre-mRNA, DNA, anticodon, amino acids.arrow_forward
- Read instrxutions and complete MRNA CODON TABLE.arrow_forwardCan you give further explanations regarding this topic? We are about to tackle this in our next lesson and our teacher assigned us to answer this for practice. But I do not have any idea on how to do this.arrow_forwardTable 8.2: Transcription and translation of the first 7 codons in the B-globin chain of hemoglobin. Normal Sequence Mutated Sequence DNA DNA amino acid DNA DNA amino Codon MRNA Codon MRNA coding template strand coding template strand strand acid code code strand sequence sequence G 1 1 G G C 2 A 2 A 3 G G A A 4 4 C G A G G G G 7 A 7 A G G Shape of RBC Shape of RBC 23 3.arrow_forward
- Identify if the statement is correct or incorrect, "rRNA serves as template for the synthesis of polypeptide."arrow_forwardThe “start” codon is ____ - ____ - ______arrow_forwardWhat is the complementary DNA sequence to the following DNA sequence? ATGCCATCG ____________________________ Write the mRNA codon sequence for the following DNA sequence. CTGCACTGA ____________________________ Write the anticodon tRNA sequence for the following mRNA sequence. UACGACUAG ____________________________ Name the amino acids that use the following mRNA codons. CAU ______________________________ AUG ______________________________ AAG ______________________________ CCC ______________________________ Name the amino acids that use the following DNA codons TAT ______________________________ CGA ______________________________ List the amino acid sequence for the following mRNA code. Be sure that you start with the first start codon you get to and then proceed to list the amino acids until you get to a stop codon. CGUAUGACUGGAAUACUUUAGCCAGCU __________________________________________________________________arrow_forward
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