Post on 06-Feb-2016
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Chapter 12
The Cell Cycle
Concept Check Questions
Chapter 12
The Cell Cycle
Starting with a fertilized egg (zygote), a series of five cell divisions would produce an early embryo with how many cells?
Chapter 12
The Cell Cycle
Starting with a fertilized egg (zygote), a series of five cell divisions would produce an early embryo with how many cells?
25 = 32
Chapter 12
The Cell Cycle
How many chromatids are in a duplicated chromosome?
Chapter 12
The Cell Cycle
How many chromatids are in a duplicated chromosome?
2
Chapter 12
The Cell Cycle
A chicken has 78 chromosomes in its somatic cells; how many chromosomes did the chicken inherit from each parent? How many chromosomes are in each of the chicken’s gametes? How many chromosomes will be in each somatic cell of the chicken’s offspring? How many chromosomes are in a “set”?
Chapter 12
The Cell Cycle
A chicken has 78 chromosomes in its somatic cells; how many chromosomes did the chicken inherit from each parent? How many chromosomes are in each of the chicken’s gametes? How many chromosomes will be in each somatic cell of the chicken’s offspring? How many chromosomes are in a “set”?
Chapter 12
The Cell Cycle
39
39
397
8
During which stage of a cell cycle would a chromosome consist of two identical chromatids?
Chapter 12
The Cell Cycle
During which stage of a cell cycle would a chromosome consist of two identical chromatids?
Chapter 12
The Cell Cycle
The end of S through the end of metaphase
Compare cytokinesis in plant cells and animal cells.
Chapter 12
The Cell Cycle
Compare cytokinesis in plant cells and animal cells.
Chapter 12
The Cell Cycle
cleavage furrowvs.
cell plate
What is a function of nonkinetochore microtubules?
Chapter 12
The Cell Cycle
What is a function of nonkinetochore microtubules?
Chapter 12
The Cell Cycle
Elongate the cell during anaphase
Identify three similarities between bacterial chromosomes and eukaryotic chromosomes, considering both structure and behavior during cell division.
Chapter 12
The Cell Cycle
Identify three similarities between bacterial chromosomes and eukaryotic chromosomes, considering both structure and behavior during cell division.
Chapter 12
The Cell Cycle
•Single molecule of DNA with proteins•Many times longer than cell•Two copies actively move apart•One copy goes to each daughter cell
A researcher treats cells with a chemical that prevents DNA synthesis. This treatment traps the cells in which part of the cell cycle?
Chapter 12
The Cell Cycle
A researcher treats cells with a chemical that prevents DNA synthesis. This treatment traps the cells in which part of the cell cycle?
Chapter 12
The Cell Cycle
G1
What is the go-ahead signal for a cell to pass the G2 phase checkpoint and enter mitosis?
Chapter 12
The Cell Cycle
What is the go-ahead signal for a cell to pass the G2 phase checkpoint and enter mitosis?
Chapter 12
The Cell Cycle
MPF
What phase of the cell cycle are most of your body cells in?
Chapter 12
The Cell Cycle
What phase of the cell cycle are most of your body cells in?
Chapter 12
The Cell Cycle
G0
Compare and contrast a benign tumor and a malignant tumor.
Chapter 12
The Cell Cycle
Compare and contrast a benign tumor and a malignant tumor.
Chapter 12
The Cell Cycle
•Both are abnormal cells•Benign stays at original site•Benign can be removed•Malignant impairs organ function•Malignant spreads via metastasis.
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