9.2 Meiosis

What is the primary genetic outcome of sexual reproduction?

• Production of genetically identical clones.

• Combination of genetic information from two organisms, resulting in unique offspring.

• Creation of offspring with only one parent's DNA.

• Formation of cells with twice the normal number of chromosomes.

What is the special type of cell division required to produce gametes?

• Mitosis

• Binary Fission

• Meiosis

• Cytokinesis

What term describes gametes, indicating they contain a single set of chromosomes?

• Diploid

• Haploid

• Homologous

• Polyploid

Which crucial event occurs during Prophase I of meiosis, contributing to genetic diversity?

• Spindle fibers pull homologous chromosomes to the cell's center.

• Chromosomes are copied, resulting in identical sister chromatids.

• Homologous chromosomes exchange sections of DNA.

• The cell divides into two identical daughter cells.

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What is the final result of Meiosis II and subsequent cytokinesis?

• Two diploid cells

• Four haploid cells

• Two haploid cells

• Four diploid cells

What is nondisjunction in the context of meiosis?

• Chromosomes fail to condense properly.

• Homologous chromosomes exchange genetic material.

• Chromosomes fail to separate correctly during cell division.

• The cell divides into an unequal number of daughter cells.

What is the primary evolutionary advantage of genetic diversity in offspring?

• It ensures all offspring are identical to the parents.

• It guarantees faster development and maturation.

• It increases the chances of some offspring surviving and reproducing in changing environments.

• It reduces the overall number of offspring produced.

Which process involves homologous chromosomes exchanging segments of genetic material, leading to new combinations of alleles?

• Independent assortment

• Random fertilization

• Crossing over

• Nondisjunction