BIOL 101 QUESTIONS AND ANSWERS EXAM LATEST
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Part A: The video compares the key similarities and differences between mitosis
and meiosis in diploid cells. Determine which events occur in mitosis, meiosis, or
in both mitosis and meiosis.
Sort each event to the appropriate bin.
Mitosis:
-End result is two diploid cells that are genetically identical to each other and the parent
cell.
-A single division occurs, separating sister chromatids.
-Duplicated chromosomes line up individually on the metaphase plate in a diploid cell.
Meiosis:
-Homologous chromosomes pair up and form chiasmata.
-End result is four haploid cells that are genetically different from each other and the
parent cell.
-Daughter cells contain recombinant chromosomes.
-The first division separates homologous pairs; the second division separates sister
chromatids.
-Homologous pairs of chromosomes line up on the metaphase plate.
Both mitosis and meiosis:
-Process starts with a diploid cell.
-Chromosomes duplicate during interphase.
The following statements discuss events associated with meiosis. Determine
which statements are true and which are false.
Drag "True" or "False" to the end of each statement
False
-The second division of meiosis reduces the number of chromosomes in each cell by
half.
-Crossing over and synapsis occur after the homologous chromosomes separate in
meiosis I.
-Meiosis occurs in both somatic (body) cells and sex cells.
True
-In meiosis II, the daughter cells from meiosis I undergo a very similar division to
mitosis.
-The first division of meiosis reduces the number of chromosomes in each cell by half.
Mitosis can occur in both haploid and diploid cells, but meiosis cannot occur in
haploid cells. Why not?
Meiosis produces daughter cells with half the number of chromosome sets of the parent
cell; therefore, the parent cell cannot be haploid.
Asexual reproduction _____.
produces offspring genetically identical to the parent
, Meiosis I produces _____ cells, each of which is _____.
two ... haploid
Meiosis II typically produces _____ cells, each of which is _____.
four ... haploid
During _____ sister chromatids separate.
anaphase II
At the end of _____ and cytokinesis, haploid cells contain chromosomes that
each consist of two sister chromatids.
telophase I
Synapsis occurs during _____.
Prophase I
Homologous chromosomes migrate to opposite poles during _____.
anaphase I
During _____ chromosomes align single file along the equator of a haploid cell.
metaphase II
At the end of _____ and cytokinesis there are four haploid cells.
telophase II
During _____ a spindle forms in a haploid cell.
Prophase II
Label the appropriate structures on this diagram with the following terms:
Drag the appropriate labels to their respective targets.
Choose the makeup of a haploid set and a diploid set in this cell.
Select all that apply.
-The chromosomes of one color make up a haploid set.
-All red and blue chromosomes together make up a diploid set.
Identify the stage of meiosis shown.
Metaphase I
What is the best evidence telling you whether this cell is diploid or haploid?
The cell is diploid because it contains two sets of chromosomes.
How are sister chromatids and homologous chromosomes different from each
other? See Concept 13.3 (Page)
Homologous chromosomes contain the same gene loci but may have different alleles of
a particular gene. Sister chromatids are identical copies of each other produced during
DNA replication.
Part A - Meiosis terminology
Drag the labels from the left to their correct locations in the concept map on the
right.
Part B - Interactions among chromosomes
This diagram shows a diploid nucleus (2n=8) in which chromosome replication
has occurred in preparation for mitosis (top) and meiosis (bottom). The nucleus
at top right is now in prophase of mitosis; the nucleus at bottom right is now in
prophase I of meiosis.
UPDATE.Buy Quality Materials!
Part A: The video compares the key similarities and differences between mitosis
and meiosis in diploid cells. Determine which events occur in mitosis, meiosis, or
in both mitosis and meiosis.
Sort each event to the appropriate bin.
Mitosis:
-End result is two diploid cells that are genetically identical to each other and the parent
cell.
-A single division occurs, separating sister chromatids.
-Duplicated chromosomes line up individually on the metaphase plate in a diploid cell.
Meiosis:
-Homologous chromosomes pair up and form chiasmata.
-End result is four haploid cells that are genetically different from each other and the
parent cell.
-Daughter cells contain recombinant chromosomes.
-The first division separates homologous pairs; the second division separates sister
chromatids.
-Homologous pairs of chromosomes line up on the metaphase plate.
Both mitosis and meiosis:
-Process starts with a diploid cell.
-Chromosomes duplicate during interphase.
The following statements discuss events associated with meiosis. Determine
which statements are true and which are false.
Drag "True" or "False" to the end of each statement
False
-The second division of meiosis reduces the number of chromosomes in each cell by
half.
-Crossing over and synapsis occur after the homologous chromosomes separate in
meiosis I.
-Meiosis occurs in both somatic (body) cells and sex cells.
True
-In meiosis II, the daughter cells from meiosis I undergo a very similar division to
mitosis.
-The first division of meiosis reduces the number of chromosomes in each cell by half.
Mitosis can occur in both haploid and diploid cells, but meiosis cannot occur in
haploid cells. Why not?
Meiosis produces daughter cells with half the number of chromosome sets of the parent
cell; therefore, the parent cell cannot be haploid.
Asexual reproduction _____.
produces offspring genetically identical to the parent
, Meiosis I produces _____ cells, each of which is _____.
two ... haploid
Meiosis II typically produces _____ cells, each of which is _____.
four ... haploid
During _____ sister chromatids separate.
anaphase II
At the end of _____ and cytokinesis, haploid cells contain chromosomes that
each consist of two sister chromatids.
telophase I
Synapsis occurs during _____.
Prophase I
Homologous chromosomes migrate to opposite poles during _____.
anaphase I
During _____ chromosomes align single file along the equator of a haploid cell.
metaphase II
At the end of _____ and cytokinesis there are four haploid cells.
telophase II
During _____ a spindle forms in a haploid cell.
Prophase II
Label the appropriate structures on this diagram with the following terms:
Drag the appropriate labels to their respective targets.
Choose the makeup of a haploid set and a diploid set in this cell.
Select all that apply.
-The chromosomes of one color make up a haploid set.
-All red and blue chromosomes together make up a diploid set.
Identify the stage of meiosis shown.
Metaphase I
What is the best evidence telling you whether this cell is diploid or haploid?
The cell is diploid because it contains two sets of chromosomes.
How are sister chromatids and homologous chromosomes different from each
other? See Concept 13.3 (Page)
Homologous chromosomes contain the same gene loci but may have different alleles of
a particular gene. Sister chromatids are identical copies of each other produced during
DNA replication.
Part A - Meiosis terminology
Drag the labels from the left to their correct locations in the concept map on the
right.
Part B - Interactions among chromosomes
This diagram shows a diploid nucleus (2n=8) in which chromosome replication
has occurred in preparation for mitosis (top) and meiosis (bottom). The nucleus
at top right is now in prophase of mitosis; the nucleus at bottom right is now in
prophase I of meiosis.
