Consider the total number of chromosomes in a single cell resulting from mitosis and the total number of chromosomes in a single cell resulting from meiosis. How do they compare? Use the simulation to test your prediction before answering.
A.
B.
C.
D.
Correct. See Key Concept 11.5 Meiosis Leads to the Formation of Gametes
Incorrect. See Key Concept 11.5 Meiosis Leads to the Formation of Gametes
Activity 11.4 Quiz
Think about how the total quantity of DNA changes in one cell cycle of mitosis and how it changes in meiosis. Then think about how the total number of cells changes in one cell cycle of mitosis and how it changes in meiosis. How do each of these features compare in mitosis and meiosis?
A.
B.
C.
D.
Correct. See Key Concept 11.5 Meiosis Leads to the Formation of Gametes
Incorrect. See Key Concept 11.5 Meiosis Leads to the Formation of Gametes
Activity 11.4 Quiz
If crossing over occurs, how many cells resulting from one round of mitosis will be unique, and how many cells resulting from one round of meiosis will be unique? (Assume that the parent cell contains one homologous pair of chromosomes.)
A.
B.
C.
D.
Correct. See Key Concept 11.5 Meiosis Leads to the Formation of Gametes
Incorrect. See Key Concept 11.5 Meiosis Leads to the Formation of Gametes
Activity 11.4 Quiz
A student ran the simulation using one pair of homologous chromosomes in the parent cell. She elected to have crossing over occur during the simulation. The table summarizes some of the information resulting from the simulation.
Mitosis
Meiosis
Total number of cells created
20
40
Number of different cells created
1
40
Number of unique cells created
0
40
How many cell cycles must have occurred to account for these results, and how would the meiosis results have differed if crossing over had not occurred? Use the simulation to test your predictions.
A.
B.
C.
D.
Correct. See Key Concept 11.5 Meiosis Leads to the Formation of Gametes
Incorrect. See Key Concept 11.5 Meiosis Leads to the Formation of Gametes