14. What is an anticodon? a. The three tRNA bases that pair with a specific amino acid. b. The three tRNA bases that pair with a specific codon in an mRNA.. 16. c. The four rRNA bases that pair with a specific amino acid. d. The four DNA bases that pair with a specific amino acid. 15. Translation uses_ and a. mRNA, DNA, amino acids b. mRNA, rRNA, polypeptide chains c. mRNA. tRNA, polypeptide chains d. rRNA, tRNA, amino acids Which statement about Hershey and Chase's experiment is true? a. It involved finding radioactivity inside bacteria infected with bacteriophage having DNA labelled with ³5S. b. It involved finding radioactivity inside bacteria infected with bacteriophage having protein labelled with ³2P. c. It involved finding radioactivity inside bacteria infected with bacteriophage having DNA labelled with 32P. d. It was to demonstrate that the protein case of a bacteriophage remained outside a bacterial cell after infection. to synthesize_ 17. What happens in the presence of high cellular concentrations of tryptophan? a. the repressor attaches to the DNA but transcription proceeds b. the repressor binds to tryptophan and then leaves the operator c. tryptophan binds to the repressor, which then binds to the operator d. tryptophan binds to the operator and prevents transcription 18. What is a silent mutation? a. the removal of a base pair in a DNA sequence b. a change in a single nucleotide within a gene that does not change an amino acid c. a change of an entire gene to another chromosome d. a change that produces a premature stop codon 19. What is the correct order of steps 1 to 6 for inserting a nonbacterial gene into a bacterium? 1. Perform gel electrophoresis of plasmid DNA from bacteria in colonies showing antibiotic resistance. 2. Allow sticky ends to pair up. 3. Use a restriction enzyme to remove the gene to be inserted from its source and also to cut open a plasmid that includes a gene for antibiotic resistance. 4. Treat bacterial colonies with antibiotic, 5. Treatment with ligase. 6. Transformation occurs. a. 4, 3, 6, 2, 5, 1 b. 5, 1, 2, 3, 4, 6 c. 2, 5, 1, 3, 4, 6 d. 3, 2, 5, 6, 4, 1
14. What is an anticodon? a. The three tRNA bases that pair with a specific amino acid. b. The three tRNA bases that pair with a specific codon in an mRNA.. 16. c. The four rRNA bases that pair with a specific amino acid. d. The four DNA bases that pair with a specific amino acid. 15. Translation uses_ and a. mRNA, DNA, amino acids b. mRNA, rRNA, polypeptide chains c. mRNA. tRNA, polypeptide chains d. rRNA, tRNA, amino acids Which statement about Hershey and Chase's experiment is true? a. It involved finding radioactivity inside bacteria infected with bacteriophage having DNA labelled with ³5S. b. It involved finding radioactivity inside bacteria infected with bacteriophage having protein labelled with ³2P. c. It involved finding radioactivity inside bacteria infected with bacteriophage having DNA labelled with 32P. d. It was to demonstrate that the protein case of a bacteriophage remained outside a bacterial cell after infection. to synthesize_ 17. What happens in the presence of high cellular concentrations of tryptophan? a. the repressor attaches to the DNA but transcription proceeds b. the repressor binds to tryptophan and then leaves the operator c. tryptophan binds to the repressor, which then binds to the operator d. tryptophan binds to the operator and prevents transcription 18. What is a silent mutation? a. the removal of a base pair in a DNA sequence b. a change in a single nucleotide within a gene that does not change an amino acid c. a change of an entire gene to another chromosome d. a change that produces a premature stop codon 19. What is the correct order of steps 1 to 6 for inserting a nonbacterial gene into a bacterium? 1. Perform gel electrophoresis of plasmid DNA from bacteria in colonies showing antibiotic resistance. 2. Allow sticky ends to pair up. 3. Use a restriction enzyme to remove the gene to be inserted from its source and also to cut open a plasmid that includes a gene for antibiotic resistance. 4. Treat bacterial colonies with antibiotic, 5. Treatment with ligase. 6. Transformation occurs. a. 4, 3, 6, 2, 5, 1 b. 5, 1, 2, 3, 4, 6 c. 2, 5, 1, 3, 4, 6 d. 3, 2, 5, 6, 4, 1
Human Anatomy & Physiology (11th Edition)
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Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
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Transcribed Image Text:14. What is an anticodon?
a. The three tRNA bases that pair with a specific amino acid.
b. The three tRNA bases that pair with a specific codon in an mRNA..
16.
c. The four rRNA bases that pair with a specific amino acid.
d. The four DNA bases that pair with a specific amino acid.
15. Translation uses
and
a. mRNA, DNA, amino acids
b. mRNA, TRNA, polypeptide chains
c. mRNA. tRNA, polypeptide chains
d. rRNA, tRNA, amino acids
Which statement about Hershey and Chase's experiment is true?
a. It involved finding radioactivity inside bacteria infected with bacteriophage having DNA labelled with ³5S.
b. It involved finding radioactivity inside bacteria infected with bacteriophage having protein labelled with ³2P.
c. It involved finding radioactivity inside bacteria infected with bacteriophage having DNA labelled with ³2P.
d. It was to demonstrate that the protein case of a bacteriophage remained outside a bacterial cell after infection.
17. What happens in the presence of high cellular concentrations of tryptophan?
a. the repressor attaches to the DNA but transcription proceeds
b. the repressor binds to tryptophan and then leaves the operator
c. tryptophan binds to the repressor, which then binds to the operator
d. tryptophan binds to the operator and prevents transcription
18. What is a silent mutation?
to synthesize_
a. the removal of a base pair in a DNA sequence
b. a change in a single nucleotide within a gene that does not change an amino acid
c. a change of an entire gene to another chromosome
d. a change that produces a premature stop codon
19. What is the correct order of steps 1 to 6 for inserting a nonbacterial gene into a bacterium?
1. Perform gel electrophoresis of plasmid DNA from bacteria in colonies showing antibiotic
resistance.
2. Allow sticky ends to pair up.
3. Use a restriction enzyme to remove the gene to be inserted from its source and also to cut
open a plasmid that includes a gene for antibiotic resistance.
4. Treat bacterial colonies with antibiotic,
5. Treatment with ligase.
6. Transformation occurs.
a. 4, 3, 6, 2, 5, 1
b. 5, 1, 2, 3, 4, 6
c. 2, 5, 1, 3, 4, 6
d. 3, 2, 5, 6, 4, 1
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