Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 21, Problem 11RQ
Which statement is true of reverse transcriptase?
- It is a
nucleic acid - It infects cells
- It transcribes RNA to make DNA. d. It is a lipid.
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Chapter 21 Solutions
Biology 2e
Ch. 21 - Figure 21.5 Which of the following statements...Ch. 21 - Figure 21.8 Influenza virus is packaged in a viral...Ch. 21 - Figure 21.10 Which of the following statements is...Ch. 21 - Which statement is true? A virion contains DNA and...Ch. 21 - The viral______play(s) a role in attaching a...Ch. 21 - Viruses. all have a round shape cannot have a long...Ch. 21 - The observation that the bacteria genus Chlamydia...Ch. 21 - A scientist discovers a new virus with a linear,...Ch. 21 - Which statement is not true of viral replication?...Ch. 21 - Which statement is true of viral replication? In...
Ch. 21 - Which statement is true of reverse transcriptase?...Ch. 21 - Oncogenic virus cores can be. RNA DNA neither RNA...Ch. 21 - Which is true of DNA viruses? They use the host...Ch. 21 - A bacteriophage can infect the lungs viruses...Ch. 21 - People with the CCR5?32 mutation of a T-cell...Ch. 21 - An apple grower notices that several of his apple...Ch. 21 - Which of the following is NOT used to treat active...Ch. 21 - Vaccines. are similar to viroids are only needed...Ch. 21 - A patient presents at the clinic with an acute...Ch. 21 - Which of the following is not associated with...Ch. 21 - Which statement is true of viroids? They are...Ch. 21 - The first electron micrograph of a virus (tobacco...Ch. 21 - Varicella-zoster virus is a double-stranded DNA...Ch. 21 - Classify the Rabies virus (a rhabdovirus family...Ch. 21 - Why can’t dogs catch the measles?Ch. 21 - One of the first and most important targets for...Ch. 21 - In this section, you were introduced to different...Ch. 21 - Although plant viruses cannot infect humans, what...Ch. 21 - A bacteriophage with a lytic life cycle develops a...Ch. 21 - Why is immunization after being bitten by a rabid...Ch. 21 - The vaccine Gardasil that targets human papilloma...Ch. 21 - Prions are responsible for variant Creutzfeldt...Ch. 21 - How are viroids like viruses?Ch. 21 - A botanist notices that a tomato plant looks...
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- Statement A: protein synthesis begins by the unwinding and unzipping of the DNA molecule in the nucleus Statement B: a nucleotide is made up of phosphate groups, nitrogenous bases, and carbohydrates A is true while B is false both statements are true both statements are false A is false while B is truearrow_forwardWhat genetic material in a living cell which is single stranded involved in the coding of genes for protein synthesis? * 1 point a. DNA b. RNA C. mRNA d. tRNAarrow_forwardA chromosome contains many different gene regions that are transcribed into different ________. a. proteins c. RNAs b. polypeptides d. DNA strandsarrow_forward
- Which describes the correct sequence of steps of protein synthesis? Group of answer choices The DNA strand unzips and a complementary mRNA strand is copied. The mRNA travels to the ribosome where tRNA "reads" it and brings the appropriate amino acids indicated by the mRNA strand nucleotide bases. The string of amino acids creates a peptide chain. Multiple peptide chains create a protein. The RNA strand travels to the ribosome where the DNA strand "reads" it and brings the appropriate amino acids indicated by the RNA strand nucleotide bases. The string of amino acids creates a peptide chain. Multiple peptide chains create a protein. The RNA strand unzips and a complementary mRNA strand is copied. The mRNA travels to the ribosome where tRNA "reads" it and brings the appropriate amino acids indicated by the mRNA strand nucleotide bases. The string of amino acids creates a peptide chain. Multiple peptide chains create a protein. The DNA strand travels to the ribosome, where tRNA…arrow_forwardWhich of the following nucleic acids is a component of ribosomes? A. Ribosomal RNA B. Transfer RNA C. Messenger RNA D. DNAarrow_forwardCreate the RNA strand to be synthesized from the DNA double strand below and explain this synthesis, including the functions of the molecules responsible for synthesis. 5-ATCGCTTGTTCGGAA-3 3-TAGCGAACAAGCCTT-5arrow_forward
- Which reaction allows DNA molecules to form from nucleotides? O Dehydration synthesis Strecker amino acid synthesis Methylation Acetylationarrow_forwardInformation is transferred from the cell nucleus to ribosomes using the molecule A. RNA B. SER C. DNA D. rERarrow_forwardBelow are the steps of protein synthesis. What is the correct sequential order? 1. MRNA is formed with codons as product of transcription. 2. Codons are translated and polypeptide chain is transferred. 3. mRNA moves into cytoplasm and becomes associated with ribosomes. 4. DNA in nucleus serves as a template. 5. Anticodon - codon complementary base pairing occurs with tRNA and MRNA. * 4, 1, 3, 2, 5 4, 3, 1, 5, 2 O 4, 1, 2, 3, 5 O 4, 1, 3, 5, 2arrow_forward
- RNA plays an important role in what biological process?a. replication b. protein synthesisc. lipid metabolismd. water transportarrow_forwardThe term translation refers to which of the following? a. DNA → RNA b. RNA → DNA c. proteins → RNA d. RNA → proteinsarrow_forwardWhich statement correctly describes the transcription of DNA? It produces amino acids It produces messenger RNA It results in increased DNA synthesis It is a semi-conservative process It occurs at the surface of the ribosomearrow_forward
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