do mutations occur in DNA or RNA? Explain
either
source:
http://en.wikipedia.org/wiki/Mutation
They occur in DNA
DNA it could be RNA but tht is pretty rare so it is DNA
Mutations can occur in both DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). However, DNA mutations are more common and have a greater impact on genetic inheritance and overall biology.
To understand why mutations can occur in both DNA and RNA, let's start with a basic explanation of DNA and RNA. DNA is the genetic material found in the nucleus of cells and is responsible for storing and transmitting genetic information. RNA, on the other hand, plays a crucial role in protein synthesis and acts as a messenger between DNA and ribosomes.
In the context of mutations, DNA mutations are changes or alterations in the DNA sequence. These changes can happen due to various reasons, such as errors during DNA replication or exposure to external factors like radiation or chemicals. Mutations in DNA can be classified into different types, including substitutions (replacing one nucleotide with another), insertions (adding extra nucleotides), deletions (removing nucleotides), or rearrangements of the DNA sequence.
RNA mutations, on the other hand, typically refer to changes or errors that occur during the transcription process, where RNA molecules are synthesized based on the DNA template. These mutations can result in errors in the RNA sequence which can, in turn, affect the translation of the RNA into protein.
It is worth noting that RNA mutations generally have a more temporary effect compared to DNA mutations. This is because RNA molecules are usually short-lived and do not have a long-lasting impact on the overall genetic makeup of an organism.
In summary, mutations can occur in both DNA and RNA, although DNA mutations are more common and significant in terms of genetic inheritance and biological consequences.