Cell Structure and Function

What is the role of condensin proteins during cell division?

• Hold chromatids together
• Break down the nuclear envelope
• Form spindle fibers
• Condense chromatin into chromosomes

What is the final outcome of mitosis?

• Four genetically identical cells
• Two genetically different cells
• Four genetically different cells
• Two genetically identical daughter cells

What is the name of the structure that organizes spindle fibers in animal cells?

• Nucleus
• Ribosome
• Golgi apparatus
• Centrosome

What is the role of cohesin proteins in chromosomes?

• Form the nuclear envelope
• Bind RNA polymerase
• Assist in DNA replication
• Hold sister chromatids together

What is the result of nondisjunction during cell division?

• Normal development
• Increased DNA replication
• Improved genetic diversity
• Chromosomal abnormalities