A researcher is comparing the sequences of genes encoding cell wall proteins in archaeons with those coding cell wall proteins in bacteria. These sequences will be since bacteria cell walls are primarily whereas archaeon cell walls are not. peptidoglycan-based chitin-based Answer Bank cellulose-based similar dissimilar

A researcher is comparing the sequences of genes encoding cell wall proteins in archaeons with those coding cell wall proteins in bacteria. These sequences will be since bacteria cell walls are primarily whereas archaeon cell walls are not. peptidoglycan-based chitin-based Answer Bank cellulose-based similar dissimilar

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter20: Viruses, Bacteria, And Archaea

Section: Chapter Questions

Problem 1SQ: The genome of ___ can be either RNA or DNA. a. a bacterium b. a eukaryote c. a virus d. an archaeon

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A sample of bacteria is collected from soil in a field that was recently treated with pesticides. The bacteria are classified and a phylogenetic is built to illustrate the soil bacteria diversity. What kinds of characteristics would be best for creating this phylogenetic? a. rRNA gene sequence and amino acid sequence of lipase b. Cell wall structure and physical appearance c. Reproductive rate and susceptibility to pesticides d. Entire genome sequence and protein expression data
A geneticist's study of a prokaryote determines that the microbe lacks genes for the synthesis of peptidoglycan. The prokaryote is most likely View Available Hint(s) for Part C an archaeon. a thermophile. a protozoan. a bacterium.
RNA is believed to be the first functional macromolecule in protobiontsbecause ita. is easier to synthesize than other macromolecules.b. has the ability to store information, self-replicate, and performcatalytic activity.c. is the simplest of the macromolecules commonly found in living cells.d. All of the above are correct.e. Only a and c are correct.
Archaea (formerly known as archaebacteria) is one of the three major divisions of living organisms; the other two are eubacteria and eukaryotes. Nanoarchaeum equitans is in the Archaea domain and has one of the smallest genomes known, about 0.5 Mb. How can an organism complete its life cycle with so little genetic material?
Among prokaryotes, only the cyanobacteria ________ .a. live near hydrothermal ventsb. produce oxygen during photosynthesisc. cannot tolerate oxygend. have a nucleus-like structure
Bacteria differ from Eukarya in all of the following except for Lack introns Lack histone proteins Have smaller ribosomes Lack a plasma membrane Have peptidoglycan
Microbiologists have announced the discovery of over 30 new species of bacteria that thrive between the teeth and gums of humans. The bacteria could not be grown in the researcher's laboratories, nor were any of them ever observed via and kind of microscopy. If they couldn't culture them or see them, how could the researchers know they discovered a new species? If they couldn't examine the cells for the presence of a nucleus, how did they determine that the organisms were prokaryotes and not eukaryotes?
Which of these characteristics is shared by bacteria andarchaea? Choose more than one answer if correct.a. presence of a nucleusb. absence of a nucleusc. presence of ribosomesd. absence of membrane-bound organellese. presence of a cell wall
I dont understand this practice Biology Question. In order to categorize bacteria, scientists use various characteristics to classify them into groups. Without naming these groups, explain characteristics and tests used by microbiologists to assign bacteria to different taxonomic groups.
The genome of ___ can be either RNA or DNA. a. a bacterium b. a eukaryote c. a virus d. an archaeon
Antibiotics such as tetracycline, streptomycin, and bacitracin aresmall organic molecules that are synthesized by particular speciesof bacteria. Microbiologists have hypothesized that the reason whycertain bacteria make antibiotics is to kill other species that occupythe same environment. Bacteria that produce an antibiotic may beable to kill competing species. This provides more resources forthe antibiotic-producing bacteria. In addition, bacteria that havethe genes necessary for antibiotic biosynthesis contain genes thatconfer resistance to the same antibiotic. For example, tetracyclineis made by the soil bacterium Streptomyces aureofaciens. Besidesthe genes that are needed to make tetracycline, S. aureofaciensalso has genes that confer tetracycline resistance; otherwise, itwould kill itself when it makes tetracycline. In recent years, however,many other species of bacteria that do not synthesize tetracyclinehave acquired the genes that confer tetracycline resistance.For example,…
Antibiotics such as tetracycline, streptomycin, and bacitracin aresmall organic molecules that are synthesized by particular speciesof bacteria. Microbiologists have hypothesized that the reason whycertain bacteria make antibiotics is to kill other species that occupythe same environment. Bacteria that produce an antibiotic may beable to kill competing species. This provides more resources forthe antibiotic-producing bacteria. In addition, bacteria that havethe genes necessary for antibiotic biosynthesis contain genes thatconfer resistance to the same antibiotic. For example, tetracyclineis made by the soil bacterium Streptomyces aureofaciens. Besidesthe genes that are needed to make tetracycline, S. aureofaciensalso has genes that confer tetracycline resistance; otherwise, itwould kill itself when it makes tetracycline. In recent years, however,many other species of bacteria that do not synthesize tetracyclinehave acquired the genes that confer tetracycline resistance.For example,…