Determine whether the characteristics describe DNA replication in prokaryotes only, eukaryotes only, or both prokaryotes and euk
aryotes.
2 answers:
Explanation:
DNA replication is a process common to both prokaryotes and Eukaryotes with few differences and similarities.
<u>Differences:</u>
1. Origin of replication (ori) : is a sequence of the genome where initiation of replication takes place. Prokaryotes have only single ori while eukaryotes have multiple ori as the DNA is large in eukaryotes so require multiple or to replicate whole DNA.
2. Replication site: prokaryotes lack nucleus where DNA is present in the cytoplasm while eukaryotes posses nucleus which encloses DNA. Therefore, replication takes place in cytoplasm in prokaryotes while in the nucleus in eukaryotes.
<u>Similarities:</u>
1. Enzymes: both posses same enzymes for DNA replication like DNA helicase, primase, polymerase.
2. The direction of synthesis: the enzyme DNA polymerase synthesizes new strand of DNA in the same direction that is 5' to 3' direction.
Thus, marked answer in the table are correct answer.
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<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2>
Mutations are the changes produced in the nucleotide sequence of the genome.
There are four main types of mutations
Substitution
Insertion
Deletion
Duplication.
<h2>_____________________________________</h2><h3>DELETION:</h3>A small segment of chromosome mat be missing. This condition is known as deletion.
For example, Normal chromosome has A B C D E F G. If deletion mutation occurs then mutated chromosome has A D E F G and B C got deleted.
<h2>_____________________________________</h2><h3>DUPLICATION:</h3>In this condition, a part of chromosome present in exec ess to the normal chromosome.
For example, Normal Chromosome has A B C D E F G. If duplication mutation occurs, then mutated chromosome had A B C B C D E F G and B C is duplicated.
<h2>_____________________________________</h2><h3>SUBSTITUTION MUTATION:</h3>Substitution is a type of mutation where one base pair is replaced by a different base pair.
For example, in the sequence CAAGT, if C replaces G, it is a substitution mutation.
<h3>INSERTION MUTATION:</h3>In genetics, an insertion is the addition of one or more nucleotide base pairs into a DNA sequence.
For example, in the sequence CAAGT, if extra base G gets inserted after C, the new sequence would be CGAAGT.
<h2>_____________________________________</h2>Both substitution and insertion mutations change the position of nucleotide thus, the type of amino acid.
<h2>_____________________________________</h2><h2>Best Regards,</h2><h2>'Borz'</h2>