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WorksheetsHon Bio-Ch 8- Review #2
Total questions: 49
Worksheet time: 41mins
In what stage of mitosis does the early mitotic spindle form?
Prophase
Metaphase
Anaphase
Telophase
Prometaphase
In what phase of the cell cycle is DNA replicated?
G1
G2
S phase
M phase
In what phase of the cell cycle are chromosomes separated for preparation for two new cells?
G1
G2
S phase
M phase
Cytokinesis
In what phase of the cell cycle are two new daughter cells created?
G1
G2
S phase
M phase
Cytokinesis
Mitosis occurs in which of the following cells?
Somatic cells (most body cells except gametes)
Gametes
Gamete precursor cells to create gametes
None of these
Label A is pointing to which of the following?
Homologous chromosomes
Sister chromatids
Centromere
Centrosome
Label B is pointing to which of the following?
Homologous chromosomes
Sister chromatids
Centromere
Centrosome
Label C is pointing to which of the following?
Homologous chromosomes
Sister chromatids
Centromere
Centrosome
The body cells of elephants have 56 chromosomes. If an elephant skin cell with 56 chromosomes divides by mitosis, each daughter cell will have _____ chromosomes.
28
56
112
Cannot tell from this info
Before S phase, how many chromosomes does a human skin cell have?
23
46
92
54
After S phase, a human skin cell has _____ chromosomes and _____ sister chromatids.
23, 46
46, 92
92, 46
54, 108
In which phase of meiosis does crossing over occur?
Prophase I
Prophase II
Metaphase I
Anaphase II
Anaphase I
In which phase of meiosis do homologous chromosomes separate?
Metaphase I
Anaphase I
Anaphase II
Prophase II
Metaphase II
In which phase of meiosis do sister chromatids separate?
Metaphase I
Anaphase I
Anaphase II
Prophase II
Metaphase II
In which phase of meiosis do chiasmata form?
Prophase I
Prophase II
Metaphase I
Anaphase II
Anaphase I
Which of the following phases occurs twice in meiosis?
Telophase
Anaphase
Metaphase
All of these
The location of a particular gene on a chromosome is called the ________.
Sister chromatid
Locus
Centromere
Allele
A sperm cell from a human has 23 chromosomes. What is the haploid number for humans? Diploid number?
23, 46
46, 92
23, 23
46, 23
Failure of two chromosomes to separate is called _____.
Nondisjunction
Allele
Locus
Homologous chromosome
Mutation
What is the gender of this person?
Female
Male
Cannot tell
This person is ________ in gender and has _________.
Female, Turner syndrome
Male, Klinefelter syndrome
Female, Down's syndrome
Female, Klinefelter syndrome
What condition does this person have?
Trisomy 18
Down's syndrome
Turner's syndrome
Klinefelter's syndrome
An exchange of corresponding segments of DNA between nonsister chromatids of homologous chromosomes is called _______
Crossing over
Meiosis
Mitosis
Nondisjunction
At the end of telophase I and cytokinesis in human cells, there are ____ cells with _____ chromosomes each.
2, 23
4, 23
2, 46
4, 46
At the end of telophase II and cytokinesis in human cells, there are ____ cells with _____ chromosomes each.
2, 23
4, 23
2, 46
4, 46
At the end of mitosis you have _____ cells
identical
different
identical twins
variety
Which of the following pairs indicate a human male?
XX
AO
XY
XO
The cells in the body that make up most tissues and contain 46 chromosomes are called _______.
Somatic cells
Egg cell
Sperm cell
Homologous cell
Which of the following pairs indicate a human male?
XX
AO
XY
XO
How many autosomes are found in a human sperm cell?
20
21
22
23
Meiosis goes through two rounds of division that produce ____ cells after round one and _____ cells after round two.
two, four
four, six
one, two
two, six
In which of the following phases do chromosomes remain together in homologous pairs?
Prophase I
Anaphase II
Telophase I
Metaphase II
Meiosis produces which of the following types of cells?
Somatic cells
Gametes
Skin cells
Liver cells
A diploid organism has 8 total chromosomes. How many chromosomes does that organism have in it's gametes after meiosis I and meiosis II?
2
4
6
8
A diploid organism has 8 total chromosomes. How many total sister chromatids does that organism have in each cell after meiosis I?
2
4
6
8
A diploid organism has 20 total chromosomes. How many total sister chromatids does that organism have in each cell after meiosis I?
2
40
10
20
A diploid organism has 20 total chromosomes. It has ____ chromosomes in each gamete after meiosis I and ____ chromosomes in each gamete after meiosis II.
10, 5
5, 5
10, 10
20, 10
Which of the following cell cycle checkpoints checks for DNA damage, cell size, growth factors, and nutrients?
G1 checkpoint
G2 checkpoint
M checkpoint
None of these check for all of that
Which of the following cell cycle checkpoints checks for DNA damage and if DNA replication is complete?
G1 checkpoint
G2 checkpoint
M checkpoint
None of these check for all of that
Which of the following cell cycle checkpoints checks for attachment of chromosomes to the spindle fibers?
G1 checkpoint
G2 checkpoint
M checkpoint
None of these check for all of that
A diploid organism has 40 total chromosomes. It has ____ chromosomes in each gamete after meiosis I and ____ chromosomes in each gamete after meiosis II.
40, 20
20, 20
20, 10
10, 10
A diploid organism has 36 total chromosomes. It has ____ chromosomes in each cell after mitosis.
36
18
72
23
A diploid organism has 36 total chromosomes. It has ____ sister chromatids in each cell right before mitosis.
36
18
72
23
