A scientist views a process that has occurred during meiosis, as shown in the diagram.

The scientist claims that genetic variation has occurred in the process. Is the scientist correct? Why or why not?

a
The scientist is incorrect. The process shown in the diagram is a deletion mutation, in which one nucleotide sequence joins another, causing genetic information to be maintained.
b
The scientist is incorrect. The process shown in the diagram is nondisjunction, in which a mutated chromosome does not duplicate normally, causing genetic information to be maintained.
c
The scientist is correct. The process shown in the diagram is nondisjunction, in which chromosomes fail to separate normally, causing an incorrect amount of genetic information to be inherited.
d
The scientist is correct. The process shown in the diagram is a deletion mutation, in which a nucleotide sequence has been omitted, causing an incorrect amount of genetic information to be inherited.

The scientist is incorrect (option a). The process shown in the diagram is nondisjunction, not a deletion mutation. Nondisjunction is the failure of chromosomes to separate properly during meiosis, resulting in an incorrect number of chromosomes in the gametes. This can lead to genetic disorders and abnormalities, but it does not involve changes to the nucleotide sequence or genetic information. The scientist's claim about genetic variation is not supported by the process shown in the diagram.