In bacteria, split genes are extremely rare. Have introns been inserted into genes in the evolution of higher organisms?

Q: Subject: Microbiology Some scientists suggest that mutation is the single most important event in…

A: Evolution is defined as the process of change in allelic frequencies in a population over successive…

Q: If not all mutations that contribute to species evolution are passed down, what conditions must be…

A: Mutations  These are the alterations in the sequence of the DNA, occured due to the mistakes during…

Q: Even though they have several differences, a bacterium and a human cell will both contain DNA. With…

A: Bacteria is a prokaryotic organism that do not contain any membrane bound cell organelles. They have…

Q: An ancient gene underwent duplication during the course of evolution to yield two chain genes…

A: Gene duplication is a major mechanism through which new genetic material is generated during…

Q: Some genes evolve more rapidly than others. But how can this be demonstrated?

A: With the sequencing of genomes of many species, the geneticists are giving a detailed picture of the…

Q: How do pseudogenes support evolution?

A: The basic functional and physical unit of heredity is referred to as genes. The genes are the units…

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: An analysis of the human genome revealed that some regions of DNA that are highly conserved across…

A: Evolution has made every species become fit and has provided the species with reproductive fitness ,…

Q: How many potential evolutionary paths are there for anallele to evolve six different mutations?…

A: The number of potential evolutionary path is n, where n is the number of mutations.

Q: Why is genetic imprinting is a major obstacle to the successful cloning of animals?

A: Imprinting is the process by which genes are expressed in a parent-of-origin specific manner i.e.…

Q: What is an advantage of using mtDNA instead of nuclear DNA intracing evolution?

A: Nuclear DNA is present within the nucleus of eukaryotic organisms. It encodes a major part of the…

Q: Discuss the role that transposons may have played in the evolution of modern organisms.

A: Transposable element that transpose to new site directly as DNA are called transposons. Some…

Q: Suppose that life exists elsewhere in the universe. All life must contain some type of genetic…

A: a genome is the genetic material of an organism.  It consists of DNA (or RNA in RNA viruses).  Each…

Q: How do molecular biology explain the evolution of life?

A: Molecular biology It is the science that studies the molecular basis of biological activity in and…

Q: In the book, Jurassic Park, by Michael Crichton, scientists are able to reconstruct dinosaurs by…

A: Amber is tree resin that has become fossilized as a result of extreme pressure and temperature, as…

Q: How might transposons be especially important in the evolutionof pathogenic bacteria?

A: Mutation is defined as sudden inheritable change that occurs in the DNA sequence. Transposon also…

Q: A typical prokaryotic cell has about 3,000 genes in its DNA, while a human cell has almost 21,000…

A: The first living prokaryotic cell has evolved around 3.8 billion years ago. It lacked cell…

Q: Given that mutations are almost always neutral or harmful, why are mutations nevertheless essential…

A: Evolution refers to the changes in the characteristics of an organism for several generations which…

Q: knowledge of biology. Mutations are often referred to as the "raw materials" of evolution. 4. State…

A: It is the gradual change in an organism which results in the development in several character leads…

Q: Many mutations can be corrected by DNA proofreading/ repair enzymes. What would happen to the…

A: BASIC INFORMATION  MUTATION  it is sudden or discontinuous variation these changes occurs in the…

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: Our DNA is subject to mutations on a daily basis. Why do most mutations that occur in the genome of…

A: Introduction Mutation Is A Changes In The Genome, When A DNA Gene Is Destroyed Or Mutated In Such A…

Q: What is the purpose of a molecular clock?

A: The molecular clock is a technique that used to measure the evolutionary change over time at the…

Q: If mutations occur at random with respect to an organism’s needs, how does a species become more…

A: Introduction  Evolution is the key process which regulates the survivability and continuity of…

Q: What two pieces of evidence support the claim that all life on Earth descended from a common…

A: Evolution is the process by which the heritable traits of different organisms evolve over subsequent…

Q: If a species is immutable (mutations do not occur) is evolution possible? Explain

A: Mutations are the changes in the DNA that occur in the gamtes I. e sperms and ova and which is thus…

Q: How does genetics provide strong evidences of evolution of life?

A: Genetics is the field of biology that studies genes, genetic variation, and heredity in organisms,…

Q: Explain mutation as a force of evolution (how do mutations contribute to biological change?

A: A mutation is a change in DNA, the hereditary substance of life is a mutation.

Q: How could enzymes have evolved without nucleic acids to encode their amino acid sequence?

A: The question of how this process actually happens naturally arose once it was discovered that…

Q: What is the evolutionary advantage of genomes?

A: Genome refers to the genetic material of an organism, which consists of deoxyribonucleic acid (DNA).…

Q: How does the regulation of gene expression support continued evolution of more complex organisms? a.…

A: The process of turning on a gene to produce RNA and protein is called gene expression. For a cell to…

Q: Segmental duplications play an important role in evolution by a. giving rise to new genes and…

A: Evolution is a process of the change in the characteristics of a species over several generations…

Q: In your own words, define the terms “orthologous” and “paralogous” genes. Then briefly suggest by…

A: Often in the course of evolution, various strategies are followed for the expression of certain…

Q: whose descendant sequences are found in all people now on the earth?

A: An ancestor is defined as the actual or hypothetical form from which an organism has developed or…

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: Would the rate of deleterious or beneficial mutations be a good molecular clock? Why or why not?

A: Permanent alteration in the sequence of DNA (deoxyribonucleic acid) is known as mutation. They can…

Q: Explain how the exon/intron structure of genescontributes to the generation of new gene…

A: Genes are the basic structure and functional unit of heredity. The genes are arranged in the triplet…

Q: Why are mutations crucial for evolution? Mutations in germline cells that affect large parts of the…

A: The mutation is the fundamental cause of all variation. Natural selection and genetic drift are…

Q: Why was the development of a coding system important to the development of life?

A: The genetic code appeared on the earth at the origin of life and the codes for culture arrived…

Q: What causes evolutionary (genetic) change?

A: Evolution is the gradual accumulation of variations in the existing organisms leading to the…

Q: Explain how genetic information transferred in evolved animals?

A: The genetic information transferred in evolved animals is due to the process of horizontal gene…

Q: Have introns been inserted into genes in the evolution of higher organisms? Or have introns been…

A: Most genes of higher eukaryotes, such as birds and mammals, are split. Lower eukaryotes, such as…

Q: How do genes and genomes change during evolution?

A: Evolution refers to the change in the characteristics of a species that takes place over several…

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.