Question

____ is the first phase of mitosis during which ___ condenses into chromosomes, the _____ and ____ appear to pull the _____chromosomes, and the _________ and _________ disappear.

A) Prophase; DNA; spindle fibers; centrioles; sister; nuclear envelope; nucleolus
B) Metaphase; RNA; centromeres; kinetochores; daughter; nuclear envelope; nucleolus
C) Anaphase; RNA; spindle fibers; centrioles; homologous; nuclear envelope; nucleolus
D) Telophase; DNA; centromeres; kinetochores; parent; nuclear envelope; nucleolus

Answer 1

The first phase of mitosis is Prophase, where DNA condenses into chromosomes, spindle fibers and centrioles organize to separate chromosomes, and the nuclear envelope and nucleolus disappear.

Step-by-step explanation:

The correct answer to fill in the blanks is Prophase; DNA; spindle fibers; centrioles; sister; nuclear envelope; nucleolus. Therefore, the completed statement is: Prophase is the first phase of mitosis during which DNA condenses into chromosomes, the spindle fibers and centrioles appear to pull the sister chromosomes, and the nuclear envelope and nucleolus disappear. During prophase, the loosely packed chromatin coils and condenses into visible chromosomes, the sister chromatids are formed, the nucleolus fades, and the nuclear envelope breaks down to prepare for the segregation of chromosomes.