What type of cell division yields two genetically identical daughter cells with the same chromosome number as the parent?

Prepare for the Biology 30 Genetics Test with detailed flashcards and multiple-choice questions that include explanations. Achieve success on your exam!

Multiple Choice

What type of cell division yields two genetically identical daughter cells with the same chromosome number as the parent?

Explanation:
The main idea is that cell division producing two genetically identical daughter cells with the same chromosome number as the parent is mitosis. During mitosis, the cell duplicates its DNA, condenses the chromosomes, and then the sister chromatids separate so each new daughter cell gets an identical set of chromosomes. Cytokinesis follows to split the cytoplasm, resulting in two diploid daughter cells that retain the same chromosome count as the original cell. This process is essential for growth and tissue repair in multicellular organisms. Meiosis, by contrast, halves the chromosome number and introduces genetic variation through crossing over and independent assortment, producing gametes rather than identical somatic cells. The other two options aren’t processes of cell division: a chromosome is a structure that carries genetic information, and a pedigree chart is a diagram used to map inheritance in families.

The main idea is that cell division producing two genetically identical daughter cells with the same chromosome number as the parent is mitosis. During mitosis, the cell duplicates its DNA, condenses the chromosomes, and then the sister chromatids separate so each new daughter cell gets an identical set of chromosomes. Cytokinesis follows to split the cytoplasm, resulting in two diploid daughter cells that retain the same chromosome count as the original cell. This process is essential for growth and tissue repair in multicellular organisms.

Meiosis, by contrast, halves the chromosome number and introduces genetic variation through crossing over and independent assortment, producing gametes rather than identical somatic cells. The other two options aren’t processes of cell division: a chromosome is a structure that carries genetic information, and a pedigree chart is a diagram used to map inheritance in families.

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