Quiz 3 Flashcards
T or F: Cell division causes a decrease in cell number that can lead to the retardation of growth or repair of damaged parts of the living body.
Cell division causes a (decrease) in cell number that can lead to the retardation of growth or repair of damaged parts of the living body. - FALSE
T or F: Mitosis is the indirect somatic cell division where the cell has to pass through several stages before it completely divides.
TRUE
T or F: Interphase is the stage between two successive cell divisions, which is the period of growth and synthesis that begins immediately after cell division is complete.
TRUE
T or F: In plant cells, cytokinesis occurs when the plasma membrane pinches in along the equator causing a cleavage furrow that deepens until the cell is pinched in half.
In (plant cells), cytokinesis occurs when the plasma membrane pinches in along the equator causing a cleavage furrow that deepens until the cell is pinched in half. - FALSE
T or F: In meiosis, daughter cells are genetically identical to the mother cell because chromosomes formed are homologous and independent.
FALSE
T or F: Meiosis results in the formation of haploid gametes that contain two complete sets of chromosomes.
FALSE
T or F: When haploid sperm fertilizes a haploid ovum, the resultant zygote again has a diploid genome, with one complete set of chromosomes inherited from the mother and a second complete set inherited from the father.
TRUE
Some cells, such as nerve cells and blood cells, do not divide often or ever, thus they may go to an arrested, quiescent stage called the Go (Gap zero) phase, which is either a stage separate from interphase or an extended G1 phase, which follows the restriction point, a cell cycle checkpoint found at the end of G1.
TRUE
T or F: At the end of oogenesis, it produces four haploid ova or egg cells of generally equal potency.
At the end of (oogenesis), it produces four haploid ova or egg cells of generally equal potency. - FALSE
T or F: The first meiotic division separates members of each homologous pair into two daughter cells, but each chromosome remains in the duplicated condition.
TRUE
T or F: In Diplotene, homologous chromosomes continue to separate and recondense to their maximally compacted state where the chiasmata move to the ends of the chromosomes.
In (Diplotene), homologous chromosomes continue to separate and recondense to their maximally compacted state where the chiasmata move to the ends of the chromosomes. - FALSE
T or F: Motion during mitotic anaphase results from a combination of kinetochore movement along the spindle microtubules and through the physical interaction of polar microtubules.
TRUE
T or F: Gap 1 phase is the period in Interphase when the cell resumes its growth and continues to synthesize RNA to double check the duplicated chromosomes for error and proteins in preparation for mitosis.
Gap (1) phase is the period in Interphase when the cell resumes its growth and continues to synthesize RNA to double check the duplicated chromosomes for error and proteins in preparation for mitosis. - FALSE
T or F: Binary fission has no karyokinesis but has cytokinesis that occurs in prokaryotic cells.
FALSE
T or F: During the interphase, the cells appear active, but the basic biochemical functions and genetic material replication are inactive.
During the interphase, the cells appear (active), but the basic biochemical functions and genetic material replication are inactive. - FALSE
T or F: Prometaphase is the period when chromatids arrive at opposite poles of cell, and new membranes form around the daughter nuclei where the chromosomes disperse and are no longer visible under the light microscope
(Prometaphase) is the period when chromatids arrive at opposite poles of cell, and new membranes form around the daughter nuclei where the chromosomes disperse and are no longer visible under the light microscope - FALSE
T or F: Meiosis is important in assuring genetic diversity in sexual reproduction generating through the exchange of genetic material between homologous chromosomes during Meiosis I, the random alignment of maternal and paternal chromosomes in Meiosis I and the random alignment of the sister chromatids at Meiosis II.
TRUE
T or F: Crossing over or the exchange of DNA segments between pairs of homologous chromosomes to form chiasmata occurs during Zygotene.
Crossing over or the exchange of DNA segments between pairs of homologous chromosomes to form chiasmata occurs during (Zygotene). - FALSE
T or F: Metaphase I is the period when homologous pairs of chromosomes arranged as a single row along the metaphase plate while the kinetochores are being pulled away from the poles.
Metaphase I is the period when homologous pairs of chromosomes arranged as a (single) row along the metaphase plate while the kinetochores are being pulled away from the poles. - FALSE
T or F: Prophase II is the period when chromosomes begin to condense, nuclear membrane dissolves and spindle fibers form.
TRUE
It is the process of dividing a cell’s nucleus to from to nuclei for the two daughter cells during cell division.
MITOSIS
It is the other term for Binary fission.
AMITOSIS
Aside from germ cells, sex cells are also known as ___?
GAMETES
It is the stage between two successive cell divisions, which is the period of growth and synthesis that begins immediately after cell division is complete
INTERPHASE