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Questions and Answers
What is the correct term for the genetic material in the nucleus that is composed of protein and DNA?
What is the correct term for the genetic material in the nucleus that is composed of protein and DNA?
- Chromatid
- Sister chromatid
- Centromere
- Chromatin (correct)
What type of cells undergo meiotic division?
What type of cells undergo meiotic division?
- Gonadal cells (correct)
- Somatic cells
- Stem cells
- Epithelial cells
What is the result of meiotic division in terms of the number of chromosomes in the daughter cells?
What is the result of meiotic division in terms of the number of chromosomes in the daughter cells?
- Twice the number of chromosomes as the parent cell
- The same number of chromosomes as the parent cell
- Four times the number of chromosomes as the parent cell
- Half the number of chromosomes as the parent cell (correct)
What is the term for the region of the chromosome that serves as the attachment point for the spindle fibers during mitosis?
What is the term for the region of the chromosome that serves as the attachment point for the spindle fibers during mitosis?
What is the term for a pair of chromosomes that are identical in terms of their genetic material?
What is the term for a pair of chromosomes that are identical in terms of their genetic material?
Study Notes
Meiosis
- Meiosis is a division process that occurs in the gonads and results in four daughter cells, each with half the number of chromosomes as the parent cell.
Chromosome Reduction
- In humans, meiosis reduces the number of chromosomes from 46 to 23.
Inheritance
- Each person inherits 23 chromosomes from each parent: one set from an egg and one set from a sperm.
Cell Division
- Meiosis occurs in gonads, not in somatic cells.
Chromosome Structure
- A chromosome consists of chromatin (DNA + protein).
- Chromatids are connected at the centromere.
- Sister chromatids are identical copies of DNA.
- Homologous chromosomes are chromosomes that pair up during meiosis.
- Chromosomes have centromeres that hold sister chromatids together.
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Description
Assess your understanding of meiosis, a cell division process that occurs in the gonads, resulting in four daughter cells with half the chromosomes of the parent.
