Crossover

What is the primary purpose of crossing over during meiosis?

• To ensure that each daughter cell receives an identical set of chromosomes

• To increase genetic variation among offspring

• To repair damaged DNA

• To duplicate the chromosomes before division

Which of the following best describes the significance of crossing over in meiosis?

• It ensures that only one cell division occurs.

• It increases genetic variation among offspring.

• It results in the production of identical daughter cells.

• It decreases the number of chromosomes in the daughter cells.

What is the primary purpose of crossing over during meiosis?

• To ensure that each daughter cell receives an identical set of chromosomes

• To increase genetic variation among offspring

• To repair damaged DNA

• To duplicate the chromosomes before division

Tags

NGSS.HS-LS3-2

Which of the following best describes the significance of crossing over in meiosis?

• It ensures that only one cell division occurs.

• It increases genetic variation among offspring.

• It results in the production of identical daughter cells.

• It decreases the number of chromosomes in the daughter cells.

During which phase of meiosis does crossing over occur?

• Prophase I

• Metaphase I

• Anaphase I

• Telophase I

What structures are involved in the process of crossing over?

• Sister chromatids

• Homologous chromosomes

• Centromeres

• Spindle fibers

How does crossing over contribute to evolution?

• By creating identical offspring

• By increasing genetic diversity

• By reducing mutation rates

• By stabilizing chromosome numbers

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Which enzyme is primarily responsible for facilitating the crossing over process?

• DNA polymerase

• Ligase

• Recombinase

• Helicase

In which organisms is crossing over most commonly observed?

• Bacteria

• Viruses

• Eukaryotes

• Archaea

What is the outcome of crossing over in terms of genetic material?

• Exchange of genetic material between non-homologous chromosomes

• Exchange of genetic material between homologous chromosomes

• Duplication of genetic material

• Loss of genetic material

Tags

NGSS.HS-LS3-2