Cell Structure and Function

What happens to the nuclear envelope during prophase?

• It expands
• It remains unchanged
• It divides independently
• It breaks down

Which type of chromosome has its centromere exactly at the center?

• Sub-metacentric
• Acrocentric
• Telocentric
• Metacentric

What is the main function of the centromere during anaphase?

• Initiates transcription
• Replicates DNA
• Controls apoptosis
• Ensures equal distribution of chromatids

When does chromatin condense into distinct chromosomes?

• During interphase
• During S phase
• During cytokinesis
• Prophase of mitosis or meiosis

Where are kinetochores located on a chromosome?

• At the telomeres
• Along the arms of the chromosome
• In the nucleolus
• On either side of the centromere