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Mitosis and Meiosis True/ False: True or false? 1. The centromeres of metacentric chromosomes are located...

Mitosis and Meiosis True/ False:

True or false?

1. The centromeres of metacentric chromosomes are located toward one end of the chromosome.

2. The attachment point on the chromosome for spindle microtubules is on the Telomere.

3. In the metaphase of mitosis, the number of chromosomes per cell is doubled compared to the interphase cell.

4. Mitosis occurs in somatic (nonsex) cells; Meiosis occurs in sex cells to produce gametes.

5. Cells with half the total chromosome number are called haploid.

6. Crossing over (genetic recombination) occurs between sister chromatids of the same chromosome.

7. Crossing over between chromatids of homologous chromosomes occurs in meiosis prohase II.

8. Meiosis results in only one member of each chromosome pair in the nucleus of the cell.

9. Humans have 46 chromosomes. In the cell during metaphase I of meiosis, the chromosome number is 23.

10. Mitosis produces daughter cells with identical genetic materials; meiosis produces four daughter cells with different genetic materials.

11. Chromosomes are randomly partitioned during Meisosi I anaphase, contributing to genetic diversity.

12. If a pollen mother cell has 3 pairs of homologous chromosomes, after meiosis, there will be 8 different combinations of chromosomes in the gametes.

Expert Solution

1. The centromeres of metacentric chromosomes are located toward one end of the chromosome.

FALSE. THEY ARE LOCATED IN THE CENTER.

2. The attachment point on the chromosome for spindle microtubules is on the Telomere. FALSE IT IS ON CENTROMERE.

3. In the metaphase of mitosis, the number of chromosomes per cell is doubled compared to the interphase cell. FALSE

4. Mitosis occurs in somatic (nonsex) cells; Meiosis occurs in sex cells to produce gametes. TRUE

5. Cells with half the total chromosome number are called haploid. TRUE

6. Crossing over (genetic recombination) occurs between sister chromatids of the same chromosome. FALSE. IT OCCURS BETWEEN HOMOLOGOUS CHROMOSOME.

7. Crossing over between chromatids of homologous chromosomes occurs in meiosis prohase II. FALSE IN PROPHASE I

8. Meiosis results in only one member of each chromosome pair in the nucleus of the cell.

9. Humans have 46 chromosomes. In the cell during metaphase I of meiosis, the chromosome number is 23. FALSE.

10. Mitosis produces daughter cells with identical genetic materials; meiosis produces four daughter cells with different genetic materials. TRUE

11. Chromosomes are randomly partitioned during Meiosis I anaphase, contributing to genetic diversity.

12. If a pollen mother cell has 3 pairs of homologous chromosomes, after meiosis, there will be 8 different combinations of chromosomes in the gametes.

TRUE

gladiator answered 1 year ago

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