What happens during a deletion mutation?

What happens during a deletion mutation?

• A. The nucleotide sequence is lengthened
• B. Part of a sequence is removed
• C. A new chromosome is formed
• D. A nucleotide is repeated

Answer: (B)

During a deletion mutation, part of the nucleotide sequence of DNA is removed. This alteration can affect the way genes are expressed and can lead to significant changes in the organism's traits or functions. Deletion mutations can occur in several ways, such as the loss of a single nucleotide or the removal of larger segments of DNA. This results in a shorter nucleotide sequence, which can disrupt the reading frame during translation, potentially leading to nonfunctional proteins or different protein structures. The impact of such mutations often depends on the specific genes affected and the extent of the deletion.

During a deletion mutation, part of the nucleotide sequence of DNA is removed. This alteration can affect the way genes are expressed and can lead to significant changes in the organism's traits or functions. Deletion mutations can occur in several ways, such as the loss of a single nucleotide or the removal of larger segments of DNA. This results in a shorter nucleotide sequence, which can disrupt the reading frame during translation, potentially leading to nonfunctional proteins or different protein structures. The impact of such mutations often depends on the specific genes affected and the extent of the deletion.