Mitosis, Meiosis, and Variation

How is the number of chromosomes in a human sex cell different from the number in a human body cell? 

• A sex cell has 23 chromosomes and a body cell has 46. 
• A sex cell has 46 chromosomes and a body cell has 23.
• A sex cell has chromosomes that are half
• A sex cell has chromosomes that are twice as long as those in a body cell. 

How is meiosis related to sexual reproduction?

• Meiosis allows the offspring produced during sexual reproduction to grow and develop.
• Meiosis joins together the sex cells during sexual reproduction to produce new offspring
• Meiosis produces the sex cells that join to form new offspring during fertilization.
• Meiosis produces the body cells that join to form new offspring during fertilization. 

Tags

NGSS.HS-LS3-2

Which of these choices is made from the process of mitosis?

• Egg
• Sperm
• Sex Cell
• Skin Cell

Tags

NGSS.HS-LS1-4

Which of these choices is NOT a reason for mitosis taking place in a multi-cellular organism? 

• Growth
• Repairing Wounds
• Asexual Reproduction
• Making Sex Cells

Tags

NGSS.HS-LS1-4

What does meiosis create?

• Skin cells
• Reproductive (or sex) cells
• Only egg cells
• Nerve cells

Tags

NGSS.HS-LS3-2

The result of meiosis is:

• two diploid cells
• two haploid cells
• four diploid cells
• four haploid cells

Tags

NGSS.HS-LS3-2

When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, _________________ occurs

• crossing over
• mutagenesis
• hybridization
• fertilization

Tags

NGSS.HS-LS3-2

The chromosomes that pair up during meiosis, are called __________ chromosomes.  

• homozygous 
• asexual
• homologous
• genes

Tags

NGSS.HS-LS3-2

This picture shows which process? 

• mitosis
• meiosis
• the cell cycle

Tags

NGSS.HS-LS1-4

How many daughter cells are produced by mitosis?

• one

• two

• four

• six

Tags

NGSS.HS-LS1-4