AP Biology Unit 5 Meiosis

What is the result of meiosis?

• 2 haploid unique cells

• 2 diploid identical cells

• 4 haploid unique cells

• 4 diploid identical cells

When does crossing over occur?

• Prophase 1

• Metaphase 1

• Anaphase 1

• Telophase 1

When does independent assortment occur?

• Prophase 1

• Metaphase 1

• Anaphase 1

• Telophase 1

During meiosis 1, which of the following are paired, aligned, and separated?

• Homologous chromosomes

• Sister chromatids

• Kinetochore microtubules

• Signaling molecules

During meiosis 2, which of the following are paired, aligned, and separated?

• Homologous chromosomes

• Sister chromatids

• Kinetochore microtubules

• Signaling molecules

How do mitosis and meiosis differ?

• Mitosis has 1 round of replication and 2 rounds of division, while meiosis has 1 round of replication and 1 round of division

• Mitosis has 1 round of replication and 1 round of division, while meiosis has 1 round of replication and 2 rounds of division

• Mitosis has 1 round of replication and one round of division, while meiosis has 2 rounds of replication and 2 rounds of division

• Mitosis has 2 rounds of replication and 2 rounds of division, while meiosis has 1 round of replication and 1 round of division

Tags

NGSS.HS-LS1-4

At the end of telophase 1, the resulting daughter cells are

• Haploid

• Diploid

Which of the following is a potential result from nondisjunction?

• Three copies of chromosome 21

• Three copies of all chromosomes

• Two copies of all chromosomes

• Two copies of chromosome 21

Tags

NGSS.HS-LS3-2

When observing a karyotype, how can one determine that a case of nondisjunction occurred?

• There are two sets of all chromosomes

• There is only one of an autosomal chromosome

• There are two X chromosomes

• There is only one X and one Y chromosome

What happens to the additional X chromosome found in female cells?

• The extra X chromosome produces extra protein products

• The extra X chromosome is deactivated and stored as a Barr body

• There is no extra X chromosome found in female cells

• The extra X is stored in the eggs in the ovaries of females for future usage