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most mutations are silent (and therefore have no effect). of the mutations that have an effect, you can have deletions, additions, point mutations and frameshifts. deletion is when a large section of the DNA is deleted, for example a whole gene, or a large proportion of it. addition is when a large section of DNA is added (this is most common in bacteria, undergoing horrizontal gene transfer, but is also how plants probably got the genes required for photosynthesis for example). point mutations is when one DNA base is changed. these are mostly due to mistakes in DNA replication, are often silent, but can change single aminoacids, and is probably the greatest source of variation within a single species (or population). frameshifts are also caused by ineffective DNA replication, but rather than a base changing, an extra on is added or one is missed out. this changes the way inwhich the cellular machinary reads the DNA, so if it occours within a gene it often means that the gene is now ineffective at the job it was supposed to do before.
ben
What else can I help you with?
What are the release dates for Ninja Turtles The Next Mutation - 1997 Truce or Consequences 1-14?
Ninja Turtles The Next Mutation - 1997 Truce or Consequences 1-14 was released on: USA: 12 December 1997
The substitution addition or removal of a single nucleotide in DNA is called a what mutation?
The substitution, addition, or removal of a single nucleotide in DNA is called a point mutation. This type of mutation can result in changes to the amino acid sequence of a protein, leading to potential functional consequences.
Explain why a mutation in a sperm or egg cell has different consequences than one in a heart cell?
A mutation in a sperm or egg cell means that the mutation while most likely be passed down to the offspring of that organism. If the mutation is in anything but a gamete, it will not be passed down.
What is truncation mutation?
Truncation mutation is a type of mutation that results in the premature termination of the protein synthesis process. This leads to the production of a truncated or incomplete protein which may be nonfunctional. Truncation mutations can have serious consequences on the structure and function of the protein.
Is the deletion mutation dominant or recessive?
A deletion mutation can be dominant or recessive, depending on the specific gene affected and the consequences of the deletion on the protein encoded by that gene. In general, the impact of a deletion mutation on an individual's phenotype will determine whether it is dominant or recessive.
A mutation in which a single base is added to or deleted from DNA is called what?
A mutation in which a single base is added to or deleted from DNA is called an insertion or deletion mutation, also known as an indel mutation. This can lead to a shift in the reading frame during translation, causing significant changes in the resulting protein sequence and potentially leading to functional consequences.
What do you call a change in the genetic code?
A change in the genetic code is called a mutation. This can result from errors during DNA replication, exposure to mutagens such as chemicals or radiation, or spontaneous changes. Mutations can have various effects on an organism, ranging from no consequences to causing genetic disorders.
Which of the following could be described as a chromosomal mutation?
A deletion, inversion, or translocation of a chromosome would be considered chromosomal mutations. These alterations involve changes in the structure or number of chromosomes, leading to genetic variations and potential health consequences.
Explain why a mutation in a sperm or egg cell has different consequences that one in a heart cell?
A mutation in a sperm or egg cell means that the mutation while most likely be passed down to the offspring of that organism. If the mutation is in anything but a gamete, it will not be passed down.
What do you think will be the impact of this mutation?
It's difficult to predict the exact impact of a mutation without more specific information about it. Generally, mutations can lead to changes in an organism's traits, which can be beneficial, harmful, or have no noticeable effect. Further studies would be needed to assess the specific consequences of the mutation in question.
Why does an insertion mutation cause more defects than point mutation?
An insertion mutation adds one or more nucleotides into the DNA sequence, which can disrupt the reading frame of the gene. This frameshift can lead to the production of a completely different and often nonfunctional protein, resulting in significant defects. In contrast, a point mutation typically alters just a single nucleotide, which may only change one amino acid or have no effect at all, making it generally less disruptive than an insertion mutation. Thus, the broader impact of an insertion mutation often leads to more severe consequences in gene function.
A mistake made during copying of genetic information is called a?
A mistake made during copying of genetic information is called a
