If the cell whose nuclear material is shown above continues toward completion of mitosis, which
of the following events would occur next?
cell membrane synthesis
spindle fiber formation
nuclear envelope breakdown
separation of the sister chromatids
formation of a cleavage furrow
2.)
Why is it more practical to prepare karyotypes (the number and visual appearance of the
chromosomes in the cell nuclei of an organism) by looking at somatic diploid cells rather than
haploid gametes?
Somatic diploid cells do not contain organelles to interfere with karyotyping.
Both chromosomes that make up the homologous pairs are present in somatic diploid cells.
The DNA in haploid gametes is not organized into autosomes.
The chromosomes are larger in a somatic diploid cell.
Haploid gametes do not have sex chromosomes.
3.)
A cyclin called cyclin E forms a complex with a cyclin-dependent kinase called Cdk 2. This
complex is important for the progression of the cell from G1 into the S phase of the cell cycle.
Which of the following statements is most likely to be correct?
The amount of unbound cyclin E is greatest during the S phase.
The amount of Cdk 2 is greater during G1 compared to the S phase.
The activity of the cyclin E/Cdk 2 complex is highest during G2.
The amount of Cdk 2 is greatest during G1.
The amount of unbound cyclin E is lowest as the cell enters S.
A. cell membrane synthesis
B. spindle fiber formation
C. nuclear envelope breakdown
D. separation of the sister chromatids
E. formation of a cleavage furrow.
If the cell whose nuclear material is shown above continues toward com.pdf
1. If the cell whose nuclear material is shown above continues toward completion of mitosis, which
of the following events would occur next?
cell membrane synthesis
spindle fiber formation
nuclear envelope breakdown
separation of the sister chromatids
formation of a cleavage furrow
2.)
Why is it more practical to prepare karyotypes (the number and visual appearance of the
chromosomes in the cell nuclei of an organism) by looking at somatic diploid cells rather than
haploid gametes?
Somatic diploid cells do not contain organelles to interfere with karyotyping.
Both chromosomes that make up the homologous pairs are present in somatic diploid cells.
The DNA in haploid gametes is not organized into autosomes.
The chromosomes are larger in a somatic diploid cell.
Haploid gametes do not have sex chromosomes.
3.)
A cyclin called cyclin E forms a complex with a cyclin-dependent kinase called Cdk 2. This
complex is important for the progression of the cell from G1 into the S phase of the cell cycle.
Which of the following statements is most likely to be correct?
The amount of unbound cyclin E is greatest during the S phase.
The amount of Cdk 2 is greater during G1 compared to the S phase.
The activity of the cyclin E/Cdk 2 complex is highest during G2.
The amount of Cdk 2 is greatest during G1.
The amount of unbound cyclin E is lowest as the cell enters S.
A. cell membrane synthesis
2. B. spindle fiber formation
C. nuclear envelope breakdown
D. separation of the sister chromatids
E. formation of a cleavage furrow
