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For DNA polymerase to link nucleotides together as new strands of DNA the first nucleotide must be attached to what because DNA polymerase can only add nucleotides to a pre exsisting strand?

The first nucleotide must be attached to a short RNA primer to provide a free 3' hydroxyl group for DNA polymerase to extend from. DNA polymerase starts adding nucleotides to this RNA primer to begin DNA replication.


How man different possible base sequences are there in a nucleotide chain three nucleotides in length?

There are 64 (4^3) different possible base sequences in a nucleotide chain that is three nucleotides in length. This is because there are 4 possible nucleotide bases (A, T, C, G), and each position in the sequence can be occupied by any one of these 4 bases.


Why doesn't the substitution of nucleotides in the mouse change its physical characteristics?

The substitution of nucleotides in the mouse may not change its physical characteristics because many nucleotide substitutions do not alter the amino acid sequence of proteins. Also, not all changes in DNA lead to changes in phenotype because some mutations may occur in non-coding regions of the genome. Additionally, the phenotype of an organism is the result of a complex interplay of many genes and environmental factors, so the effect of a single nucleotide substitution may be negligible.


Why RNA-primer only initiates replication?

Laxu's answer made no sense so I deleted it. Next time Laxu please contribute something that makes some grain of sense. Only RNA primers can be used because DNA polymerase cannot add nucleotides without an existing 3-OH' to build on. RNA can be added to an existing template without this requirement and is then used by the DNA polymerase to initiate the strand.


Phosphate groups can be esterified at any hydroxyl group on a pentose nucleotide What position is the most common?

The most common position for esterification of a phosphate group on a pentose nucleotide is the 5' carbon of the sugar. This is because it is the primary site for linking nucleotides in DNA and RNA chains.

Related Questions

For DNA polymerase to link nucleotide together as new strands of DNA the first nucleotide must be attached to a because DNA polymerase can only add nucleotides to a pre-existing strand?

For DNA polymerase to link nucleotides together, the first nucleotide must be attached to a primer, which is a short segment of RNA or DNA that provides a free 3' hydroxyl group for the DNA polymerase to start adding nucleotides. DNA polymerase can only extend nucleotides from an existing primer or strand, using it as a template for complementary base pairing.


For DNA polymerase to link nucleotides together as new strands of DNA the first nucleotide must be attached to what because DNA polymerase can only add nucleotides to a pre exsisting strand?

The first nucleotide must be attached to a short RNA primer to provide a free 3' hydroxyl group for DNA polymerase to extend from. DNA polymerase starts adding nucleotides to this RNA primer to begin DNA replication.


Why does DNA polymerase move in the 5' to 3' direction during DNA replication?

DNA polymerase moves in the 5' to 3' direction during DNA replication because it can only add new nucleotides to the 3' end of the growing DNA strand. This is because the enzyme requires a free 3' hydroxyl group to form a bond with the incoming nucleotide.


Where is DNA located in the nucleotide?

This question is strange because nucleotides make up DNA.


Why does RNA polymerase work in direction 5' to 3' not from 3' to 5'?

Any polymerase (DNA or RNA) works in the 5`-3` direction (downstream) because the 3` end contains the hydroxyl groups. The 5` phosphate binds covalently with the 3` hydroxyl group forming a phospho diester linkage.


In what direction can a DNA polymerase work when catalyzing the addition of nucleotide monomers to build a strand of DNA?

A DNA polymerase can only add nucleotide monomers to the 3' end of a growing DNA strand, meaning it works in a 5' to 3' direction. This is because the enzyme can only add nucleotides to the hydroxyl group on the 3' carbon of the sugar molecule.


Which enzyme links RNA nucleotides together to form an RNA molecule?

RNA polymerase is the enzyme responsible for linking RNA nucleotides together during transcription. It catalyzes the formation of phosphodiester bonds between nucleotides to create a single-stranded RNA molecule.


Smallest bit of genetic information?

A gene, because any smaller and it would just be nucleotides.


Why does DNA polymerase require a primer for initiating the synthesis of new DNA strands?

DNA polymerase requires a primer to initiate the synthesis of new DNA strands because it can only add nucleotides onto an existing strand of DNA. The primer provides a starting point for the polymerase to begin adding nucleotides and building the new DNA strand.


Why can't DNA polymerase synthesize in the 3' to 5' direction?

DNA polymerase can only synthesize DNA in the 5' to 3' direction because it can only add nucleotides to the 3' end of the growing DNA strand. This is due to the structure of the DNA molecule and the way the nucleotides are arranged.


What is the prinicpal enzyme involved in DNA replications because it jois individual nucleotides to produce a DN A molecule?

DNA polymerase III .


How many codons are there in an mRNA with 75 nucleotides?

Every codon is three nucleotide pairs, so you would have 25 codons.