Quick 10Q: 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 I

• Metaphase I

• Anaphase I

• Telophase I

When does independent assortment occur?

• Prophase I

• Metaphase I

• Anaphase I

• Telophase I

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

• homologous chromosomes

• sister chromatids

• kinetochore microtubules

• signaling molecules

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

• homologous chromosomes

• sister chromatids

• kinetochore microtubules

• signaling molecules

How does 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 1 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 I, the resulting daughter cells are?

• haploid

• diploid

Which of the following resulted from nondisjunction?

• Three copies of chromosome 21

• Three copies of all chromosomes

• Two copies of all chromosomes

• Two copies of chromosome 21

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 a only one X and 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 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.