What stage of mitosis is depicted by the image above?
prophase
metaphase
anaphase
telophase
cytokinesis
What stage of mitosis is depicted by the image above?
prophase
metaphase
anaphase
telophase
cytokinesis
What stage of mitosis is depicted by the image above?
prophase
metaphase
anaphase
telophase
cytokinesis
What stage of mitosis is depicted by the image above?
prophase
metaphase
anaphase
telophase
cytokinesis
What stage of mitosis is depicted by the image above?
prophase
metaphase
anaphase
telophase
cytokinesis
The correct order for the stages of mitosis is
prophase, metaphase, anaphase, telophase
anaphase, prophase, telophase, metaphase
prophase, anaphase, metaphase, telophase
telophase, anaphase, metaphase, prophase
metaphase, anaphase, telophase, prophase
A human cell ordinarily will have 23 pairs of chromosomes, for a total of 46 chromosomes. At the end of a cell cycle, including mitosis, the new cells will have
23 pairs of chromosomes; 46 total
only the 23 maternal chromosomes
only the 23 paternal chromosomes
92 chromosomes, as a result of doubling during the S-phase of the cell cycle
Interphase is broken into phases known as
G1, S and G2
S, Mitosis, and Cytokinesis
G0, G1, and G2
prophase, metaphase, anaphase and telophase
Cells that will no longer undergo division enter a phase known as
apoptosis
meiosis
mitosis
interphase
G0
In stage G1, the cell
copies the chromosomes
doubles the cell contents, excluding the chromosomes
reduces the number of chromosomes from the diploid number to the haploid number
creates two identical nuclei
The phase of mitosis depicted in the circled region above is
prophase
metaphase
anaphase
telophase
The phase of mitosis depicted in the circled region above is
prophase
metaphase
anaphase
telophase
The phase of mitosis depicted in the circled region above is
prophase
metaphase
anaphase
telophase
The phase of the cell cycle that appears to have just been completed in the circled region is
prophase
metaphase
anaphase
telophase
cytokinesis
After a bacterial cell has undergone binary fission, how many chromosome copies will each daughter cell contain?
one
two (one maternal and one paternal)
forty-six
one pair
Which of these do mitosis and binary fission have in common?
The diploid number of chromosomes in mammals is always
two
forty-six
an odd number
an even number
A diploid cell in a buffalo has 60 chromosomes. A sperm or egg cell in a buffalo can be expected to have
60 chromosomes
30 chromosomes
15 chromosomes
120 chromosomes
"Crossing over" between maternal and paternal chromosomes takes place during
mitosis
meiosis I
meiosis II
fertilization
The process of meiosis
begins with diploid cells and ends with haploid cells
begins with diploid cells and ends with diploid cells
begins with haploid cells and ends with diploid cells
begins with haploid cells and ends with haploid cells
The first evidence of crossing-over exists in the view labeled
You can see a diploid nucleus with chromosomes that have not undergone crossing over in the field labeled
Haploid cells can be seen in the field labeled
Meiosis II takes place between fields
A and B
A and C
B and C
C and D
This human karyotype shows the sex of the individual is
male
female
Chromosomes shown here that are NOT sex chromosomes are known collectively as
y chromosomes
x chromosomes
karyotypes
autosomes
This human karyotype shows the sex of the individual is
male
female
Haploid reproductive cells are collectively referred to as
gametes
zygotes
blastocysts
polar bodies
Nucleus 1 shows a diploid cell of a cartoon smurf. Which other nucleus is from a diploid smurf cell?
none of them
nucleus 2
nucleus 3
nucleus 4
Nucleus 1 shows a diploid nucleus of a cartoon smurf. Which nucleus is from a haploid smurf cell?
none of them
nucleus 2
nucleus 3
nucleus 4
The karyotype above is from a human cell. Its source is
a fertilized gamete
an egg cell
a sperm cell
a normal somatic (body) cell
Diploid cells that result from the fertilization of an egg cell by a sperm cell are called
gametes
zygotes
blastocysts
polar bodies
The karyotype above is from a human cell. Its source is
haploid
diploid
polyploid
a normal somatic (body) cell
The karyotype above shows paired, non-identical chromosomes that contain information for the same biological features and contain the same genes. These pairs are known as
sex chromosomes
homologous chromosomes
heterologous chromosomes
somatic chromosomes
If this karyotype were for a human sperm cell, it should
have only an "X" sex chromosome
have fewer autosomes
have only a "Y" chromosome
have more autosomes
have either an "X" or a "Y" chromosome
Nucleus 1 shows a diploid nucleus of a cartoon smurf. Which nucleus comes from an abnormal cell?