What process produces genetic diversity through random distribution of maternal & paternal chromosomes (meaning they can line up on either side of the metaphase plate)? alignment of the metaphase plate to one side instead of in the middle cytokinesis independent assortment recombination crossing over

What process produces genetic diversity through random distribution of maternal & paternal chromosomes (meaning they can line up on either side of the metaphase plate)? alignment of the metaphase plate to one side instead of in the middle cytokinesis independent assortment recombination crossing over

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter10: Cell Reproduction

Section: Chapter Questions

Problem 1VCQ: Figure 10.6 Which of the following is the correct order of events in mitosis? Sister chromatids line...

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The duplicated chromosomes are seen lined up in the center of the cell during prophase metaphase telophase anaphase s-phase
A drawing of a cell in anaphase is provided. The cell contains 8 unreplicated chromosomes with alleles (H, h, F, f) properly labeled. The chromosomes are shown separating from each other with 4 chromosomes moving toward each side of the cell. Spindle fibers are labeled.
All of the following happen during anaphase EXCEPT doubled chromosomes (sister chromatids) are dragged to either end of the cell motor proteins pull chromosomes doubled chromosomes split into their individual single chromosomes the centrosomes form
1 3 4 Here is a replication fork during S phase of the cell cycle. DNA strands are labeled 1-4. After mitosis and cytokinesis is complete, One daughter cell will have strands 18&2, another will have strands 3&4 One cell will have 1&3, the other will have 2&4 Each of the strands (1-4) will be in a different cell. All four strands will end up in the same cell, and the other cell will have the complementary strands. Both A and B are equally likely.
How does mitosis result in daughter cells containing identical number and same DNA with its parent cell? O Crossing over occurs during the g1 phase O Crossing over occurs during prophase I Crossing over does not occur during prophase Crossing over does not occur during metaphase
The centromeric connections between chromatids fail to be severed. Kinetochores from sister chromatids become attached to microtubules from the same pole. A motor protein at the kinetochore is not functional. The chromosomes fail to attach to the kinetochore microtubules. Chromosomes will not move to the metaphase plate. Chromatids will not separate during anaphase. One kinetochore will detach from the spindle. Chromosomes will not move toward centrosome during prometaphase.
Centrioles at opposite end of cell Spindle fibres attached to centromeres 46 double stranded chromosomes lined up along the metaphase plate Diploid cell 2n = ANAPHASE Centrioles at opposite poles Spindle fibres attaches to centromeres of the single stranded chromosomes 46 chromosomes get separated - 46 chromatids get pulled to each pole by spindle fibres Diploid cell 2n =
Figure 10.6 Which of the following is the correct order of events in mitosis? Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the mitotic spindle. The nucleus reforms and the cell divides. Cohesin proteins break down and the sister chromatids separate. The kinetochore becomes attached to the mitotic spindle. Cohesin proteins break down and the sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the cohesin proteins. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. Cohesin proteins break down and the sister chromatids separate. The nucleus reforms and the cell divides.
S. Chromosomes are duplicated during what stage of the cell cycle? G1 phase S phase prophase prometaphase
Which of the following statements is TRUE? O Interphase chromosomes are loosely compacted, overlapping, and intertwined with each other within the nucleus. O Interphase chromosomes are loosely compacted and do not associate with histones until the cell is preparing to divide. O Interphase chromosomes are also known as euchromatin. Condensed, metaphase chromosomes are also known as heterochromatin. O Radial loops in the condensing chromosome are formed due to interactions between 30 nm fibers and the scaffolding proteins of the nuclear matrix - producing the 300 nm fiber of the chromosome O None of these are TRUE
Cells normally contain fully or partially replicated chromosomes in all of the following stages of the cell cycle except: G1 G2 prophase metaphase S
Which of the following marks an important event during telophase? movement of chromosomes at the metaphase plate nuclear envelope starts to reappear movement of chromosomes at the opposite poles Ochromosome condensation