mejoza

What is the primary biological significance of meiosis?

• Production of new somatic cells for growth and repair.

• Asexual reproduction in single-celled organisms.

• Production of gametes with half the genetic information.

• Regeneration of damaged tissues.

Which of the following processes is primarily achieved through mitosis?

• Formation of sex cells (gametes).

• Reduction of genetic material by half.

• Growth of an organism and repair of damaged tissues.

• Genetic recombination.

What crucial event must occur before a cell undergoes either mitosis or meiosis?

• Formation of the spindle apparatus.

• Condensation of chromosomes.

• DNA replication.

• Nuclear envelope breakdown.

What happens during the first stage of mitosis?

• Chromosomes align at the equatorial plane.

• Sister chromatids separate and move to opposite poles.

• Chromosomes condense, the nuclear envelope breaks down, and the spindle forms.

• Two new nuclei form, and the cell divides into two daughter cells.

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What is the result of mitosis?

• Two daughter cells, each with half the number of chromosomes as the parent cell.

• Four daughter cells, each with half the number of chromosomes as the parent cell.

• Two daughter cells, each genetically identical to the parent cell with the same number of chromosomes.

• Four daughter cells, each genetically identical to the parent cell with the same number of chromosomes.

Which biological process is primarily responsible for the production of gametes (sperm and egg cells)?

• Mitosis

• Meiosis

• Binary fission

• Budding

During the first meiotic division, what unique event occurs with homologous chromosomes?

• Sister chromatids separate.

• Homologous chromosomes pair up.

• Chromosomes replicate.

• The nuclear envelope reforms around individual chromatids.

What is the final outcome of meiosis from a diploid parent cell?

• Two diploid daughter cells.

• Four haploid daughter cells.

• Two haploid daughter cells.

• Four diploid daughter cells.