Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 21, Problem 5TYK
Summary Introduction
Introduction: By comparing the three domains such as eukarya, archaea, and bacteria, it was found that there were differences in the genomes’ size of eukaryotes and prokaryotes. Also, there is variation in the number of genes between the eukaryotes and prokaryotes.
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Which of the following statements is a lie?
Select one:
a. In humans, the genetic code is stored in 46 double-stranded DNA molecules.
b. DNA packaging of prokaryotes into compact sizes is distinct to eukaryotic DNA packaging.
c. Plasmids cause bacterial mutation and diversification thus they are essential components for cellular reproduction.
The existence of ubiquitous genes and proteins (performs the same function in all organisms) strongly support the theory that all life evolved from a common ancestor. With that in mind, what kind of genes might be evolutionarily conserved and universally found in bacteria, plants and animals?
Select one:
a. genes that code for the synthesis of ribosomes.
b. genes that code for the enzymes of glucose metabolism
c. genes that code for the synthesis DNA and RNA polymerase
d. all of the above.
Clear my choice
Which of the following statements about codons in prokaryotic cells and eukaryotic cells is correct?
A.
Prokaryotic codons are longer than eukaryotic codons.
B.
Eukaryotic codons are made of DNA, and prokaryotic codons are made of RNA.
C.
Prokaryotes do not have mRNA, so there are no codons.
D.
Codons are very similar, no matter whether the cell is prokaryotic or eukaryotic.
Chapter 21 Solutions
Study Guide for Campbell Biology
Ch. 21 - In what ways would third-generation sequencing be...Ch. 21 - Prob. 2IQCh. 21 - Refer to the organisms listed in Table 21.1 in...Ch. 21 - Explain why retrotransposons always move by the...Ch. 21 - For each of the following types of DNA sequences...Ch. 21 - Prob. 6IQCh. 21 - Prob. 7IQCh. 21 - If all Hox genes contain the same or very similar...Ch. 21 - About 25% of the human genome relates to the...Ch. 21 - Prob. 2SYK
Ch. 21 - Which of the following has decreased the time and...Ch. 21 - Prob. 2TYKCh. 21 - In the process called gene annotation, computer...Ch. 21 - Prob. 4TYKCh. 21 - Prob. 5TYKCh. 21 - Prob. 6TYKCh. 21 - What is a pseudogene? a. a gene that has been...Ch. 21 - Prob. 8TYKCh. 21 - Which of the following is common to both...Ch. 21 - Prob. 10TYKCh. 21 - Prob. 11TYKCh. 21 - Prob. 12TYKCh. 21 - Prob. 13TYKCh. 21 - Prob. 14TYKCh. 21 - Compared to genes in mice and chimpanzees, most...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- The nucleotides from a bacterial cell were found to have the following abundances: 39% uracil; 41% adenine, 9% cytosine; 8% guanine. What type of molecule is the genome of the bacteria likely made of? a. Double stranded DNA b. Single stranded DNA c. Messenger RNA d. Double stranded RNAarrow_forwardWhich of the following organisms would be the most likely to have identical copies of the Alu sequence, repeated thousands of times in its genome? A. the Japanese pufferfish B. Escherichia coli C. the chimpanzee D. Fugu rubripes E. the mousearrow_forwardWe have looked at the structure of DNA in cells. There are some differences. Based on what we have learned, which of the following is TRUE? a. Mitochondrial chromosomal DNA is similar in structure to bacterial chromosomes. b. Prokaryotic chromosomes contain kinetochores whereas eukaryotic chromosomes have centromeres. c. All the chromosomes found in eukaryotes are linear while prokaryotic chromosomes are circular. d. Bacterial chromosomes have multiple origins of replication, thus allowing for short generation times, whereas eukaryotic chromosomes are replicated from a single origin. e. All the answers presented are TRUE. f. Telomeres are found on all chromosomes, both prokaryotic and eukaryotic, however only eukaryotic telomers shorten over time.arrow_forward
- The advantage of yeast cells over bacterial cells to express human proteins is that: a. yeast cells grow faster b. yeast cells are easier to manipulate genetically c. yeast cells are eukaryotic and modify proteins similarly to human cells d. yeast cells are easily lysed to purify the proteinsarrow_forwardWhich of the following experimental results was NOT evidence that DNA is the genetic molecule rather than proteins? a. When a virus was radioactively labelled, and the virus was allowed to infect a bacteria cell, radioactive virus DNA was found inside the bacteria cell while radioactive virus proteins were found outside the cell. b. Dead pathogenic bacteria cells combined with living nonpathogenic bacteria cells caused the creation of living pathogenic cells and thus the death of the host animal. c. Proteins are a class of macromolecules with the diversity and specificity needed for hereditary material. d. Nucleotide bases occur regularly, such that the number of adenines = number of thymines, and the number of guanines = number of cytosines.arrow_forwarde. coli is commonly found in the human Microbiome. while most strains are harmless some can cause various illnesses ranging from urinary track infections to severe gastroenteritis. which of the following is a primary mechanism by which e. coli obtains its pathogenicity? A. Vertical gene transfer from parent to offspring B. Endosymbiosis with other bacteria C. Mutation in the bacterial chromosome D. Horizontal gene transfer from other Bacteria or the environmentarrow_forward
- The Selfish Gene is a radical theory that argues that all living creatures are essentially vehicles for their genes- hence, we all are a “survival machine" for our genes. In the light of what you have learned about the molecular structure and function of the gene, is this perspective still relevant? Cite specific biological phenomena to prove your point. References:arrow_forwardThe above image compares portions of DNA containing globin genes from an ordinary bony fish and an icefish. The genes on the figure are aligned based on - A. the beginning sequence on the chromosome. B. a matching of intron sequences. C. homologous sequences. D. gene function.arrow_forwardOver several years, researchers learned more about proteins and the genes which code for them, the findings of which lead them to revise the original one gene-one enzyme hypothesis. Which of the following is NOT one of the findings which led to revision? a. many genes code can code for RNA molecules which never go on to produce a protein at all b. oftentimes, many genes are required to produce a single protein, where one gene produces one polypeptide and many polypeptides together make the single protein c. in addition to enzymes, gene products also include non-enzyme proteins like keratin and insulin d. a single gene produces one specific enzyme e. a single gene may code for multiple different (closely related) polypeptidesarrow_forward
- The experimental insertion of a fragment of frog DNA into a bacterial plasmid produces a(n) ________ molecule; if this fragment contains a gene, the process is most accurately referred to as ________. a.recombinant; gene cloning b. diploid; splicing c. Hybrid; fusion d.Eukaryo-bacterial; genetic engineering e. Mutant; biosynthesisarrow_forwardWhich of the following schemes for molecular information flow never occurs in cellular life forms? a. DNA to rRNA b. mRNA to protein c. DNA to tRNA d. DNA to mRNA e. RNA to DNAarrow_forward. Which of the following characteristics of chloroplastsand/or mitochondria make them seem more similar tobacterial cells than to eukaryotic cells?a. Translation is sensitive to chloramphenicol anderythromycin.b. Alternate codons are used in mitochondria genes.c. Introns are present in organelle genes.d. DNA in organelles is not arranged innucleosomes.arrow_forward
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Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY