Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 10, Problem 4TY
Summary Introduction
Introduction:
The DNA is the genetic material present in all types of organisms on Earth. The DNA consist of
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Which of the following is a characteristic of the genetic code?
a. codons and anticodons consist of three bases
b. each amino acid is represented by at least one codon
c. one or more codons serve to indicate when protein synthesis is to stop
d. no individual codons represent more than one amino acid
e. More than one response is correct
Which of the following statements regarding the genetic code is false?
The genetic code is nearly universal.
Each codon codes for only one amino acid.
Three different codons function to terminate translation.
There is a single initiation codon.
Each amino acid is encoded by a single codon.
Which of the following is an example of the degeneracy of the genetic code
An amino acid can have more than one codon
Each codon specifies more than one amino acid
The genetic code is not degenerate
None of the above
Chapter 10 Solutions
Principles of Biology
Ch. 10.1 - What is the direction of flow of genetic...Ch. 10.1 - Prob. 1TYKCh. 10.1 - Prob. 2TYKCh. 10.1 - Prob. 3TYKCh. 10.2 - How would removing a terminator from a gene affect...Ch. 10.2 - Prob. 1BCCh. 10.2 - Prob. 1TYKCh. 10.2 - Prob. 2TYKCh. 10.3 - Do the ends of protein-encoding genes have a poly...Ch. 10.3 - The splicing of pre-mRNA in eukaryotes involves...
Ch. 10.3 - Prob. 2TYKCh. 10.4 - Prob. 1CCCh. 10.4 - Prob. 2CCCh. 10.4 - Prob. 1TYKCh. 10.4 - Prob. 2TYKCh. 10.5 - Prob. 1CCCh. 10.5 - Prob. 1BCCh. 10.5 - Based on the gene sequences shown here, pick two...Ch. 10.5 - Prob. 1TYKCh. 10.5 - Prob. 2TYKCh. 10.5 - Prob. 3TYKCh. 10.6 - Prob. 1CCCh. 10.6 - Prob. 1TYKCh. 10.6 - Prob. 2TYKCh. 10 - Which of the following best represents the central...Ch. 10 - Prob. 2TYCh. 10 - Prob. 3TYCh. 10 - Prob. 4TYCh. 10 - Prob. 5TYCh. 10 - Prob. 6TYCh. 10 - The legion of a tRNA that is complementary to a...Ch. 10 - Prob. 8TYCh. 10 - Prob. 9TYCh. 10 - Prob. 10TYCh. 10 - Lets suppose a gene mutation changed the sixth...Ch. 10 - What is the function of an aminoacyl-tRNA...Ch. 10 - A principle of biology is that the genetic...Ch. 10 - Prob. 1CBQCh. 10 - Prob. 2CBQ
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- If the genetic code uses triplets, how many different amino acids can be coded by a repeating RNA polymer composed of UA and UC (UAUCUAUCUAUC ...)? a. one b. two c. three d. four e. fivearrow_forwardA certain mRNA strand has the following nucleotide sequence: 5AUGACGUAUAACUUU3 What is the anticodon for each codon? What is the amino acid sequence of the polypeptide? (Use Figure 13-5 to help answer this question.) Figure 13-5 The genetic code The genetic code specifies all possible combinations of the three bases that compose codons in mRNA. Of the 64 possible codons, 61 specify amino acids (see Figure 3-17 for an explanation of abbreviations). The codon AUG specifies the amino acid methionine and also signals the ribosome to initiate translation (start). Three codonsUAA, UGA, and UAGdo not specify amino acids; they terminate polypeptide synthesis (stop).arrow_forwardWhich of the following is/are not found in a bacterial mRNA molecule? (a) stop codon (b) upstream leader sequences (c) downstream trailing sequences (d) start codon (e) promoter sequencesarrow_forward
- The following segment of DNA codes for a protein. The uppercase letters represent exons. The lowercase letters represent introns. The lower strand is the template strand. Draw the primary transcript and the mRNA resulting from this DNA.arrow_forwardWhich of the following statements about the genetic code are true and which are false? Correct each false statement. A.Each codon is composed of four bases. B.Some amino acids are represented by more than one carbon. C.All codons represent an amino acid. D.Each living species is thought to have its own unique genetic E.The codon AUG at the beginning of a sequence is a signal for protein synthesis to begin at that codon. F.It is not known if the code contains stop signals for protein synthesis.arrow_forwardIn the genetic code, there are ___ More tRNAs than codons More codons than amino acids The same number of codons and amino acids Multiple start codonsarrow_forward
- Which of the following is an example of the degeneracy of the genetic code?Group of answer choices a) each codon specifies more than one amino acid b) the genetic code is not degenerate c) an amino acid can have more than one codon d) None of the abovearrow_forwardWhat molecules are largely responsible for the universal feature of the genetic code? Ribosomes Amino acids Aminoacyl-tRNA-synthetase enzymes DNA nucleotidesarrow_forwardWhich of the following codons is not a termination codon for protein synthesis?a) UUUb) UAGc) UAAd) UGAarrow_forward
- Which of the following types of mutation that changes the mRNA sequence after the codon that initiates translation is likely to have the most detrimental effect on the polypeptide product? Group of answer choices a substitution of the first nucleotide of a GGG codon a substitution of the third nucleotide in an ACC codon an insertion of a codon a deletion of two nucleotides a deletion of a codonarrow_forwardWhich of the following is a true statement concerning codons A codon Will be read by RNA polymerase during transcription A codon is composed of two nucleaotides A codon specifies one amino acid A codon is composed of three amino acids A codon is found in all eukaryotes but not in prokaryotesarrow_forwardWhich of the following statements are NOT true? A. Replication is the process of making DNA and takes place in the nucleus of prokaryotic cells. B. Translation produces a polypeptide that may require additional processing to become a functional protein C. Transcription starts at the promoter of eukaryotic cells and scans until reaches the start codon. D. Splicing results in exons being put together and introns being removedarrow_forward
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