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Multiple Choice
Which of the following results from an incomplete chromosome?
A
Deletion
B
Duplication
C
Translocation
D
Inversion
Verified step by step guidance
1
Understand the concept of chromosome structure: Chromosomes are structures within cells that contain DNA and protein. They carry genetic information essential for the development, functioning, and reproduction of organisms.
Learn about chromosomal mutations: These are changes in the structure or number of chromosomes and can lead to genetic disorders or variations. Common types include deletion, duplication, translocation, and inversion.
Define deletion: A deletion occurs when a segment of a chromosome is missing or has been removed. This results in an incomplete chromosome because some genetic material is lost.
Compare with other mutations: Duplication involves the repetition of a chromosome segment, translocation involves the rearrangement of parts between nonhomologous chromosomes, and inversion involves the reversal of a chromosome segment. None of these result in an incomplete chromosome like deletion does.
Conclude that deletion is the correct answer: Since deletion results in the loss of a chromosome segment, it leads to an incomplete chromosome, distinguishing it from the other types of chromosomal mutations listed.