What happens if there is a change in the base sequence of a molecule?

What happens if there is a change in the base sequence of a molecule?

This occurs when one nucleotide base is substituted for another in a DNA sequence. The change can cause the wrong amino acid to be produced. In some cases, the change has little effect. In other cases, the incorrect amino acid can affect the structure or function of the protein being encoded.

What is a change in the base sequence?

DNA is a dynamic and adaptable molecule. As such, the nucleotide sequences found within it are subject to change as the result of a phenomenon called mutation. Sometimes, a mutation may even cause dramatic changes in the physiology of an affected organism.

What would happen to the protein if the sequence of DNA changed by one base?

If the amino acid sequence above changed by one base pair, the entire protein could change. For example, if a base was substituted for another base, it could change the amino acid sequence, changing the protein formed. Also, there is a chance nothing would change with the protein.

What will happen if there are changes in the DNA sequence that affects the genetic information?

Mutations are changes in the genetic sequence, and they are a main cause of diversity among organisms.

What effect would this accidental change in the base sequences of the DNA molecule have on DNA replication?

What effect would an accidental change in the base sequence of the DNA molecule have on DNA Replication? The base wont match the original. The DNA would not match the original and is not correct.

What will happen if mutations occur?

When a gene mutation occurs, the nucleotides are in the wrong order which means the coded instructions are wrong and faulty proteins are made or control switches are changed. The body can’t function as it should. Mutations can be inherited from one or both parents. They are present in the egg and/ or sperm cells.

Does a simple change in DNA sequence affect the resulting protein?

A single base change can create a devastating genetic disorder or a beneficial adaptation, or it might have no effect. The resulting protein still consists of 147 amino acids, but because of the single-base mutation, the sixth amino acid in the chain is valine, rather than glutamic acid. …

What happens when there are mutations in the code?

Mutations are errors in codons caused by changes in nucleotide bases. Some mutations may not have much effect. For example, if the codon GAA becomes the codon GAG, because the genetic code is degenerate, the codon will still code for the amino acid glutamate. Such ineffectual mutations are called silent mutations.

How would a change in the sequence of nucleotides in a DNA molecule affect the mRNA?

How would a change to the sequence of nucleotides in a DNA segment affect the mRNA transcribed from the DNA? The mRNA strand is similar to the DNA strand except that uracil replaces thymine. The completed mRNA strand then detaches from the DNA strand.