What is a mutation?


any change in the phenotype of a cell

any change that is harmful to an organism

any change in a gene or chromosome

any change that is helpful to an organism

A mutation is any change in a gene or chromosome. It can occur through various mechanisms, such as a substitution, insertion, or deletion of nucleotides in the DNA sequence. Mutations can result in changes to the phenotype of a cell or organism, which may be either harmful or beneficial. So, a correct statement would be that a mutation is any change in a gene or chromosome.

A mutation is any change in the DNA sequence of a gene or chromosome, which can result in a change in the phenotype of a cell or organism. It can occur due to various factors, such as errors during DNA replication, exposure to certain environmental factors (like radiation or chemicals), or spontaneous changes. Mutations can have different effects on an organism. Some mutations may be harmful and negatively impact the function or survival of an organism, while others may be beneficial and provide an advantage in certain environments. Additionally, some mutations may have no noticeable effect at all. To determine if a change in the phenotype of a cell is a result of a mutation, scientists often use techniques such as DNA sequencing to compare the affected individual's DNA with the normal reference DNA sequence. By analyzing the differences, they can identify and characterize the specific mutations.

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors.

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