Chapter 9 Flashcards
the region labeled “A” in figure 9-1 is called the :
a. centromere
b. centriole
c. sister chromatid
d. spindle
The region labeled “A” in figure 9-1 is called the a. centromere
The structures labeled “B” in figure 9-1 are called
a. centromeres
b. centrioles
c. sister chromatids
d. spindles
The structures labeled “B” in figure 9-1 are called c. sister chromatids
During which phases of mitosis are structures like the one shown in Figure 9-1 visible?
a. anaphase and prophase
b. prophase and metaphase
c. metaphase only
d. anaphase and interphase
During which phases of mitosis are structures like the one shown in Figure 9-1 visible?
b. prophase and metaphase
which event occurs during the interphase?
a. The cell carries out metabolic processes
b. Centrioles appear
c. Spindle fibers begin to form
d. Centromeres divide
during the interphase the event that occurs is: a. The cell carries out metabolic processes
Which of the following is a correct statement about the events of the cell cycle?
a. Little happens during the G1 and G2 phases
b. DNA replicates during cytokinesis
c. The M phase is usually the longest phase
d. Interphase consists of the G1, S, and G2 phases
The correct statement about the events of the cell cycle has to do with the interphase.. d. The Interphase consists of the G1, S, and G2 phases
During which phase of mitosis do the chromosomes line up along the middle of the dividing cell?
a. prophase
b. telophase
c. metaphase
d. anaphase
During which phase of mitosis do the chromosomes line up along the middle of the dividing cell? The c. metaphase, is the phase of mitosis when chromosomes line up along the middle of the dividing cell.
One difference between cytokinesis in plant cells and in animal cells is that plant cells have
a. centrioles
b. centromeres
c. a cell plate
d. chromatin
One difference between cytokinesis in plant cells and in animal cells is that plant cells have c. a cell plate
What is a malignant tumor?
a. an accumulation of centrioles
b. a mass of cancer cells
c. the rapidly dividing cells found at the site of the wound d. an abnormal mass of essentially normal cells
A malignant tumor is b. a mass of cancer cells
Unlike mitosis, meiosis results in the formation of
a. diploid cells
b. haploid cells
c. 2n daughter cells
d. body cells
Unlike mitosis, meiosis results in the formation of b. haploid cells
Crossing over rarely occurs in mitosis, unlike meiosis. Which of the following is the likely result?
a. Chromatoids are not involved in mitosis
b. Tetrads rarely form durung mitosis
c. A cell undergoing mitosis does not have homologous chromosomes
d. There is no prophase during mitosis
Crossing over rarely occurs in mitosis, unlike meiosis. Which of the following is the likely result? b. Tetrads rarely form durung mitosis
true or false Reproduction by simple cell division is called sexual reproduction, whereas the process in which two parents contribute genetic material is called asexual reproduction.
false !!!!!!!! its the other way around! Reproduction by simple cell division is called asexual reproduction. when two parents contribute genetic material, this is called sexual reproduction.
look at figure 9-1 on page 120 true or false? the structure in 9-1 is a duplicated chromosome
True! This figure is a duplicated chromosome
true or false? A cell splits into two daughter cells during cytokenesis
this is True! A cell does split into two daughter cells during cytokenesis
true or false homologous chromosomes are the two sets of chromosomes found in the body . one set is from the male parent, and the other from the female parent
this is true!!!!!!!!!! in the homologous chromosomes, one set is from the male parent, and the other from the female parent
true or false. mitosis results in two cells, whereas meiosis results in one cell.
this is false!!! mitosis results in two cells, but meiosis results in FOUR cells!
During metaphase, each chromosome is connected to a —————-?
during metaphase each chromosome is connected to a spindle microtubule.
during ———–, the nucleus of duplicated chromosomes divide and are evenly distributed forming to daughter nuclei?
during mitosis, the nucleus and the duplicated chromosomes divide and are evenly distributed forming two daughter nuclei
look at figure 9-3 on page 120. The process shown in this figure occurs only in what kind of cells that have just divided?
look at figure 9-3 on page 120. The process shown in this figure occurs only in PLANT CELLS that have just divided.
look on page 120 figure 9-3. The structure labeled “A” in the figure is called what?
on page 120 figure 9-3 the structure labeled “A “ in the figure is called the cell plate
on page 120 look at figure 9-3 again. the process shown occurs directly following mitosis. this process is called what???????
on page 120 figure 9-3 the process shown occurs directly following mitosis. this process is known as the cytokinesis.
do you have a short answer to this ? how does Cell production contribute to repair and growth?
Cell production contributes to repair and growth this way…… when you have an injury your body will produce the cells that heal the world all of the cells in your body is also a result of new cells are produced by cell reproduction
do you have a short answer for this? what is the difference between chromatids and chromatin?
The difference between Chromotids and chromatin is that chromatids are two identical DNA strands that are joined by a centromere chromogen is the material that makes up the chromosomes this material is DNA and proteins
How are homologous chromosomes alike? How are they different?
Homologous chromosomes are similar in size and in shape. their genes are in the same order and they control the same inherited characteristics. however, the two genes may be slightly different versions.
how many sets of chromosomes are in a diploid cell?
A diploid has two sets of chromosomes?
how does crossing over contribute to genetic. Variation? in your answer use the term genetic recombination.
Crossing over is the exchange of genetic material between homologous chromosomes. During crossing over, segments of two chromatids can be exchanged at one or more sites. Crossing over Can produce A single, so it contains a new conversation of genetic information from different parents. This new combination of genetic information is called genetic recombination.
look on page 120 to figure 9-4. what is the chromosome diploid number of cells shown in this figure?
on page 122 a chromosome diploid number of the cell is 4!
looking at the figure on page 122 how do you know if this is an animal cell or a plant cell what does the figure represent?
The figure on page 122 shows different stages of mitosis and it is in animal song the reason you know it’s an animal cell because it has centrioles and because of the shape of the cell.
on page 122 and with that in the figure the structure that’s labeled X and Y represents what?
on page 122 configure a shows X as the centriole and Y as the spindle fiber
The figure on page 122 shows the different stages of mitosis in an animal cell. what’s the right order for those stages? list by letter.
The right order for the steps in the mitosis process is DACB.
on page 122 the different figures shown out of the steps and the mitosis process if they were arranged in the right order what with the picture of the next step show? write the word for it and space draw it somewhere.
if these were arranged in the right order the next step would be cytokinesis the picture will show two daughter cells forming.
on page 122 which stage is being shown in the diagram C?
diagram C in the mitosis process is showing the anaphase step.
Look at figure 9-2 on page 127 What is shown there?
a. independent assortment
b. anaphase 1 of meiosis
c. crossing over
d. replication
Look at figure 9-2 on page 127 What is shown there? c. crossing over
See diagram 9-5 on page 130 Compare how cancer cells are different from normal cells, and tell how it’s shown in the two figures.
Figure A shows how the cells are out of control and have formed into a tumor, because the cells are dividing too fast; and disrupting the cells next to them. They don’t respond to the signals that manage growth properly.
In figure A in 9-5 on page 130, that shows the cancer cells, what’s the process called if they are untreated, and what will happen?
If the cancer isn’t treated, it can break loose and to go other parts of the body and keep spreading, this is called METASTATIS.
Look at the figure 9-6 on page 131. What ware the stages where the cells are 2n. Which states are they “n”?
In Figure 9-6, on page 131, The cells in stages A, B and C are 2n. The ones in D, E, F & G are “n”
In the figure 9-6 on page 131, IN stage B, what’s the structure labeled “X”?
In the figure 9-6 on 131, the structure “X” in state B, the structure is called a TETRAD.
In figure 9-6, page 131, which stage does genetic recombination happen in ? Where’s it shown in the diagram?
In figure 9-6, page 131, genetic recombination happens in STAGE A, this is in PROPHASE 1.
