CH 5 Bio
If a cell had 12 chromosomes at the beginning of meiosis II, how many would each daughter cell have after the completion of meiosis II?
12
how many chromosomes did you inherit from your father?
23
If a human diploid cell and a human haploid cell somehow managed to fuse together and not lose any of the chromosomes, how many sets of chromosomes would be inside the newly formed cell?
3
Human white blood cells are often multinucleated (in other words, have more than one nucleus). How many chromosomes would be present in a white blood cell with two nuclei?
92
how many chromosomes would a typical human cell have after mitosis but before cytokinesis?
92
how much of your DNA is identical to that another person or the same sex?
99.5
What causes the furrow during cleavage?
A ring of contractile protein fibers pinches the cell in two.
When does the cell plate form during cell division?
At the completion of plant cell mitosis
Is the number of chromosomes in each cell of an organism a good indicator of the complexity of that organism?
No, the number of chromosomes does not indicate how complex an organism is.
What is a karyotype?
a picture of the chromosomes in a cell
Name the part of the chromosome indicated by the arrow.
centromere
DNA plus its associated proteins is called a ________.
chromatin
genes are located on
chromosomes
Somatic cells are
diploid (2n)
What is the gender of the person indicated in this photograph?
female (all are X's, no Y)
what type of cells do not undergo mitosis?
gametes (meiosis)
what specifically separates during meiosis 1
homologous chromosomes
during which phase of the cell cycle are the chromosomes duplicated?
interphase
What produces four daughter cells?
meiosis
what produces genetically unique daughter cells?
meiosis
A zygote (i.e., a fertilized egg) undergoes development to grow. What mechanism is used to generate more cells?
mitosis
Dead or damaged cells are replaced by the process of ________.
mitosis
which of the following is the correct sequence of events during mitosis?
nuclear membrane dissolves, chromosomes line up, chromosomes split, nuclear membrane forms
If mitosis makes somatic cells, what does meiosis make?
sex cells
What are attached at the centromere?
sister chromatids
what specifically separates during meiosis 2
sister chromatids
what specifically separates during mitosis?
sister chromatids
What is cytokinesis?
the stage of the cell after the cell has divided its DNA and during which the cytoplasm gets divided
When one cell goes through cell division, it produces ________.
two identical cells
The offspring produced via sexual reproduction are genetically ________ to the parents.
unique
Upon fertilization, the egg and sperm fuse to form a single cell called a(n) ________.
zygote