Which of the following is/are evidence that mitochondria and bacteria are descendants of bacteria? (Select all that apply.) a) The DNA structure of mitochondria and chloroplasts is similar to that of bacteria b) The DNA sequence of mitochondria and chloroplasts is similar to that of bacteria c) Mitochondria and chloroplasts have their own genomes that are not enclosed in a nuclear envelope. d) MItochondria and chloroplasts have their own ribosomes.

Q: Pinocytosis can bring all of the following substances into most eukaryotic cells, with the exception…

A: Introduction  Cells are compartmentalized structures which are enclosed by the cell membranes. These…

Q: If you were developing a new “broad-spectrum” antibiotic to kill a widevariety of bacteria, which…

A: To create a broad-spectrum antibiotic it might be necessary to travel once the cell membrane, cell…

Q: How might the evolution of antibiotic resistance in pathogenic bacteria be slowed down or prevented?…

A: Antibiotics, as the name suggests, are drugs that are anti "bios', meaning they are anti life. They…

Q: Can all bacteria undergo transformation? Explain.

A: Transformation is the process of taking up of foreign DNA or naked DNA by bacterial cells. The…

Q: you able to distinguish between specific species of bacteria? Why, or why not? Which method for…

A: Staining, culturing, and simple biochemical tests are the traditional methods for distinguishing…

Q: When do bacteria form endospores? a-When environmental conditions are unfavourable b-When they want…

A: Introduction :- Spores known as endospores are produced inside of cells, primarily in bacteria.…

Q: The antibiotic kanamycin binds to the small ribosomal subunit of bacteria and interferes with…

A: Kanamycin and diphtheria toxin can not be a good option for the treatment of archaeobacterial…

Q: How Endosymbiotic theory can be applied to biomolecules as it invloves in the development of nucleic…

A: The endosymbiotic theory explains the evolution of mitochondria and chloroplasts and states that…

Q: find an example of a set of genes that have been horizontally gene transferred between bacteria or…

A: Horizontal gene transfer (HGT) can be defined as the acquisition of genetic material from another…

Q: Current models for the origin of genetic information flow regard which of the following processes as…

A: The flow of genetic information from one organism to another involves two processes. Transcription…

Q: What must be the reason why prokaryotes are often called simple cells while eukaryotes as complex…

A: Prokaryotes : These are primitive organisms and they are very simple in structure .  They consists…

Q: The white lines drawn indicate different lineages of bacteria throughout the experiment. The black…

A: On increasing the Antibiotic concentration some bacteria die and some bacteria survive. The bacteria…

Q: In the experiment performed by Messelson and Stahl, bacterial cells grown in 1N-containing growth…

A: Watson and Crick proposed the semi-conservative model for the replication of DNA. Later, this was…

Q: The endosymbiotic hypothesis for the origin of chloroplasts from gram-negative prokaryotes is…

A: Endosymbiotic hypothesis helps us to understand the evolution of eukaryotes from primitive…

Q: Pinocytosis can bring all of the following substances into most eukaryotic cells, with the exception…

A: Pinocytosis is a type of endocytosis that brings the small particles along with the fluids into the…

Q: What is endosymbiotic theory ? explain the assumptions of the endosymbiotic theory ?

A: Prokaryotes are those organisms which lack a membrane bound nucleus. They consist of eubacteria and…

Q: Would genetic engineering be possible if we did not know a great deal about the genetics of…

A: Answer- Genetic engineering is the process by which foreign DNA is incorporated in the desired DNA…

Q: Ti plasmid carrying a foreign gene is inserted into which bacterium that infects a plant cell?   a.…

A: The Ti plasmid vector is used in the world of plant genetic engineering with the aim of introducing…

Q: Why are molecular methods especially useful when bacteria are difficult to grow?

A: With the advent of molecular techniques, the culture of unculturable bacteria becomes possible,…

Q: What would be the evolutionary advantage of having a period of natural “competence” in a bacterial…

A: The transfer of foreign DNA from the surroundings into a bacterial cell and those bacterial cells…

Q: Which of the following changes in early prokaryotes could be predicted to result in the emergence of…

A: A cell is the basic structural, functional, and biological unit of all known organisms. Cells are…

Q: Prokaryotic cells are generally _______ in diameter while eukaryotic cells are _____ in diameter.

A:

Q: In comparing bacteria, archaea, and eukaryotes, which statement below among A -D is false?

A: There are some living organisms that cannot be seen by the naked eye and only can be seen under the…

Q: In the experiment by Bernard Davis, bacterial F+cells and F- cells were growing while separated by a…

A: The transfer of genetic material between bacteria can occur in three different ways, Conjugation,…

Q: Why is genetic transfer important for the survival of prokaryote species?

A: The prokaryotic organisms are mainly the bacteria that do not contain any membrane bound cell…

Q: peptidoglycan can of bacteria has been campared with the chain mail worn beneath a medieval knights…

A: Peptidoglycan is the major component of cell walls that helps bacteria to survive in harsh…

Q: Name 3 ways in which genetic information of bacteria can be changed?

A: The method of genetic recombination in bacteria by which bacteria diversify their genetic material…

Q: Analyses of genomes have allowed researchers to determine that some cells have very small genomes.…

A: Question -   Analyses of genomes have allowed researchers to determine that some cells have very…

Q: What is horizontal gene transfer? What are the three mechanisms for this to occur in bacteria?

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: Who coined the term Genophore?

A: Bacteria are prokaryotes. They are unicellular organisms that lack internal membrane-bound…

Q: True or false: bacterial cells may contain multiple genomes?

A: False

Q: Pinocytosis can bring all of the following substances into most eukaryotic cells, with the exception…

A: Pinocytosis is a type of endocytosis which brings the small particles along with the fluids into the…

Q: The endosymbiotic hypothesis for the origin of mitochondria from gram-negative prokaryotes is…

A: Endosymbiotic theory states that some of the organelles present in Eukaryotic cell structures are…

Q: What is the distinguishing feature that identifies prokaryotic from eukaryotic cells?

A: On the basis of organization of DNA, cells are classified into two types - prokaryotic and…

Q: In some areas of the world, vitamin A deficiencies lead to a high number of deaths every year. To…

A: Golden rice is a variety of rice produced through genetic engineering to biosynthesize beta-…

Q: The unicellular, rod-shaped bacterium E. coli is~2 μm long and 0.8 μm wide, and has a…

A: For identifying whether an uncharacterized microbe is a bacterium, it should be unicellular, having…

Q: In the experiment performed by Messelson and Stahl, bacterial cells grown in 15N-containing growth…

A: It is majorly present within the nucleus. DNA can exist in different levels of complexity.  Primary…

Q: Why is the Endosymbiotic theory so important?

A: A cell is the fundamental unit of life. All living organisms are made up of one or many cells. The…

Q: Compare and contrast the three mechanisms of genetic transfer in bacteria?

A: Bacteria reproduce via binary fission and splits into two identical daughter cells. Binary fission…

Q: Consider the fact that the use of 16S rRNA sequencing as a taxonomic and phylogenetic tool has…

A: 16S rRNA gene sequencing is frequently used to identify, classify, and quantify microorganisms in…

Q: Endosymbiotic Theory?

A: Endosymbiotic theory states that some of the organelles in today's eukaryotic cells were once…

Q: Engineered bacteria are commonly used and cultured in pharmaceutical laboratories to produced drugs…

A: Insulin is a polypeptide hormone produced by the β-cells of islets of Langerhans of the pancreas. It…

Q: What step(s) would you recommend to local officials that would cause the bacteria to evolve to be…

A: Cholera is a very infectious and often fatal bacterial disease of the small intestine. This is…

Q: Which of the following questions would be most appropriate to investigate whether the proteolytic…

A: Proteolytic enzymes : Proteases occur in all organisms from prokaryotes to eukaryotes and to virus .…

Q: Which of the following are the purposes of protein synthesis? A - Protecting bacteria from…

A: Protein synthesis is very much important process in the cell. All enzymes are constituent of…

Q: Select a statement that is not correct about bacterial fimbriae?   A. they protect the cell from…

A: In bacteriology, a fimbria is a type of appendage that is found on many Gram-negative and some…

Q: Which of the following is considered a distinguishing characteristic of prokaryotic cells?     a)…

A: A cell is the basic structural and functional unit of life. It is broadly categorized into…

Q: What does the endosymbiotic hypothesis propose?

A: There are 2 hypotheses regarding the origin of the organelle. These 2 hypotheses are autogenous and…

Prokaryotic evolution

The term evolution means the gradual change or a transformation from a simple or primitive state to a complex or advanced state. Prokaryotic evolution is a concept that involves the evolution of the form and function of most primitive organisms (prokaryotes) through several stages and changes to form diverse life as a part of organic evolution.