Even though they have several differences, a bacterium and a human cell will both contain DNA. With respect to evolution, what does this fact suggest?

Q: RNA is often characterized as being the first“biologically active” molecule. What two properties or…

A: The RNA world is a hypothetical stage in the evolutionary history of life on earth, in which self…

Q: Evolution, which involves genetic changes in a population of organisms over time, is often described…

A: Evolution is considered as a key unifying principle in biology. There is a popular saying that…

Q: All life shares DNA as the hereditary material. From an evolutionary perspective, why do you think…

A: To recap: The evolutionary foundation for the statement "All life shares DNA as a hereditary…

Q: How does the structure of DNA enable the ability to store information, be consistently replicated…

A: Nucleic acids are involved in various processes in the cell, their main role is the expression of…

Q: How did Stanley Miller’s experiments support the idea that, even atlife’s origins, physical and…

A: The earth begins from 4.6 years ago, from the cloud of gases that contain helium and hydrogen. From…

Q: DNA-based

A: In the initial times the genetic material of yhe most of the primitive organisms was the RNA and…

Q: Which of the following conclusions about this form of life would be most justified?

A: Any life form that exists must have some form of central dogma for functioning and survivability,…

Q: How does analysis of DNA and proteins support each other evidence for evolution?

A: Introduction :- The interpretation of genetic sequences is known as DNA analysis, and it can be…

Q: How does Biogenetic theory explain the origin of life?

A: The biogenetic theory is a scientific theory that seeks to explain the origin of life. According to…

Q: Why does variation exist in nature? What could be its significance?

A: Variation causes and definition ---  The following factors are mainly responsible for variation ---…

Q: Which of the following schemes for molecular informationflow never occurs?(a) DNA → rRNA(b) DNA →…

A: The 'Central Dogma' is basically the process in which the instructions of DNA are converted into a…

Q: Which of the following statements privdes the best evidence that there is a common genetic code that…

A: Existence of common genetic code means same genetic code triplet codes for same amino acid across…

Q: During the course of evolution why DNA was choosen over RNA as genetic materials?

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: How does the increasing frequency of anabiotic resistant strains of bacteria represent an example of…

A: Antibiotics are pharmaceuticals that are used to prevent and treat infections caused by bacteria.…

Q: Which statement about genome evolution is false?     Mutations at the ends of introns are less…

A: Evolution is change in the heritable characteristics

Q: Random mutations only very rarely result in changes in a protein that improve its usefulness for the…

A: Introduction: The genome of every human is different because of the occurrence of mutations taking…

Q: Which of the following statements is an accurate representation of the five unifying themes of…

A: The living organisms shows some characteristics that includes- metabolism, homeostasis, response,…

Q: Living things have a different molecular composition from nonliving things. What makes this…

A: The world is composed of various distinct things. However, some things are non-living whereas, some…

Q: What conditions are necessary for evolution by natural selection?

A: Some kind of genetic variability is always present in a population. Such alleles make an organism or…

Q: In recent years, strains of bacteria resistant to antibiotics have created serious health care…

A: Antibiotics are the medications that are used for suppressing the growth of bacteria or killing…

Q: Because all known living organisms share a common system for storing and utilizing genetic…

A: option(4) is correct answer. All the given ideas are likely.   1. All life forms on earth share a…

Q: The theory of evolution states that all living things had a single common ancestor. The translation…

A: All living beings that we can classify descended from the Last Universal Common Ancestor, according…

Q: In what sense does the universality of the genetic code support the theory of evolution?

A: Because of the genetic code, a lot of very different species have the same genes. Similarities and…

Q: In a discussion about the origin of life, one student argued that RNA molecules must have come…

A: RNA and DNA are both nucleic acids that play crucial roles in the storage and transmission of…

Q: Which of the following is least reasonable regarding the Urey-Miller experiment? Group of answer…

A: Harold C. Urey and Stanley L. Muller conducted an experiment to explore the origin of life on earth.…

Q: Which of the following is a reason that the low error rate of DNA replication is important to…

A: Some genes can withstand changes. Depending on whether it affects those genes, there may be some…

Q: Does natural selection cause micro or macro evolution? Explain.

A: On the basis of scales, at which evolution occurs, biological evolution is divided into…

Q: Most of the time, evolution seems to do a pretty good job of turning out living organisms with…

A: Evolution is defined as the process of accumulation of genetic variations in living organisms over a…

Q: Some scientists say that modern medicine and better sanitation are slowing down or altering the…

A: Darwin proposed the concept of survival of the fittest. According to this theory, individuals who…

Q: Cat DNA is much more similar to dog DNA than to tortoise DNA. Why? (a) Cats and dogs are both…

A: All living things have the same genetic material (DNA), comparable genetic codes, and the same…

Q: The raw material for evolution is random mutation. Discuss whether or not you view evolution as a…

A: The process of Biological evolution refers to the cumulative changes that occur in a population over…

Q: Which of the proteins is changing at the slowest rate and is most conserved?

A: Evolution can be defined as the change in the characteristics that are inherited over generations of…

Q: Why is mutations almost always neutral or harmful? If this is true, why are mutations nevertheless…

A: mutations are any chanage in the nucleotide sequence in genetic material of an organism .  gene is…

Q: If nitrogenous bases (A, G, C, T or U) could polymerize to chains of nucleotides, could this…

A: There are strong evidences that indicates that RNA arises before DNA. Development of life on the…

Q: What is DNA and RNA? How are DNA and RNA different? Do you think there are any organisms on the…

A: It contains the genetic information for the functioning of the organism. It contains two strands.…

Q: Based on the Origin of Life by John H. McClendon, what are the implications of each of his theories?

A: Origin of Life, by John H. McClendon is a book which discusses the origins of the atmosphere,…

Q: If RNA played a key role in the origin of life,why do cells now use DNA for information storage and…

A: Introduction  DNA and RNA are the main genetic material found in all the species irrespective of…

Q: The virus causing the 2009 Flu Pandemic contained sequences from bird, pig, and humans. Why? The…

A: Viruses have high recombination and mutation rates. When they gain entry into the living cell they…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.