Mutations are changes in the DNA sequence contained within one or more cells of an organism. These mutations can be beneficial, harmful, or have no effect on the organism's function. Answer and Explanation:1 Aninsertionis a point mutation that results in the addition of...
What is the difference between purines and pyrimidines? What does it mean by purines have 2 rings and pyrimidines have 1 ring? Nucleotides Nucleotides are the basic building blocks of nucleic acids; DNA and RNA. There are two different kind...
- A point mutation, also called base-pair substitution, is a gene mutation that changes a single nucleotide base pair of DNA or RNA. Point mutations can be categorized based on the impact on protein expression. Silent Mutation: Although a change in the DNA sequence occurs, this type of muta...
If, in addition, this mutation, which either affects a ribosomal or transfer RNA gene or is coding and nonsynonymous, is not observed in some small convenience sample declared as ''controls'', then a case can be made for disease-association or pathogenicity. The seeming pathogenic role is ...
The hunt for pathogenic mitochondrial DNA (mtDNA) mutations is often fueled by the seeming novelty of mutations that are either nonsynonymous or affect the protein synthesis machinery in patients. In order to determine the novelty of a detected mutation, the working geneticist nearly always consults...
Mutation In biology, a mutation is an alteration in the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA. Viral genomes contain either DNA or RNA. Mutations result from errors during DNA or viral replication, mitosis, or meiosis or other types of damage to DNA...
An alteration in DNA that occurs after conception. Somatic mutations can occur in any of the cells of the body except the germ cells (sperm and egg) and therefore are not passed on to children. What is an example of transversion mutation? Transversion substitution refers to a purine being ...
A frameshift mutation isa genetic mutation caused by a deletion or insertion in a DNA sequence that shifts the way the sequence is read. A DNA sequence is a chain of many smaller molecules called nucleotides. Which type of mutation point or frameshift is more harmful?
Describe the process of making mRNA from DNA. How are nucleotides attached to strands if DNA is already double strained? What is the difference between DNA and RNA? What is the role of mRNA in protein synthesis? How does DNA control cellular activity by directing protein syn...
What is the process that turns on the transcription of a gene or genes? Which type of mutation occurs when a piece of DNA is cut, rotated, and the re-inserted? a. nucleotide substitution b. insertion mutation c. deletion mutation d. inversion ...