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Explanation:

During prophase I, homologous chromosomes form tetrads follow me the center of the cell. Complete chromosomes space pulled to every pole throughout anaphase I, resulting in two haploid cell at the end of meiosis I. During prophase II, sisters chromatids align at the facility of the cell in singular chromosome structures. These sister chromatids room separated during anaphase II, leading to a full of 4 haploid cells.

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Explanation:

A diploid cabinet will have two duplicates of every chromosome, recognized as a homologous pair. A haploid cell will only have one copy of each chromosome, though the chromosome might consist of two sister chromatids.

Diploid cell: (XX)

Haploid cell: (X)

During meiosis I, the cell is diploid since the homologous chromosomes room still located within the exact same cell membrane. Just after the very first cytokinesis, as soon as the daughter cells of meiosis ns are completely separated, space the cells thought about haploid. Adhering to this very first division, the cell starts meiosis II through prophase II, make this the an initial haploid meiotic stage.


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Example question #3 : expertise Stages the Meiosis


What occurs throughout the S step of the cell cycle?


Possible Answers:

The cytoplasm splits and forms two diploid daughter nuclei


The cell"s dyed condenses and forms chromosomes


DNA is replicated, causing two identical sister chromatids attached in ~ the centromere


The cell grows in size, prepares mRNA and proteins, and also prepares come divide


The cabinet enters a state in i m sorry it neither divides, no one is preparing to divide


Correct answer:

DNA is replicated, causing two the same sister chromatids attached in ~ the centromere


Explanation:

The S step occurs between the G1 and also G2 phases and is the stage during which DNA is replicated, and also then confirm for defects. Depending upon the level that nutrients and also energy available, the cell will certainly either go into the G0 step or the M phase.

During the G1 phase, the cell replicates organelles and grows in size. During the G2 phase, DNA is confirm for damage and the cell prepares to divide. The M phase describes mitosis, when the G0 phase refers to quiescence—a duration during i m sorry the cabinet is no preparing for division.


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Example inquiry #4 : expertise Stages that Meiosis


During which step of meiosis does DNA start to condense?


Possible Answers:

Prophase I


Metaphase I


Telophase I


Anaphase I


Metaphase II


Correct answer:

Prophase I


Explanation:

Mitosis is also known as "karyokinesis." "Karyo-" describes the nucleus. (Remember the eu-KARY-ote way true ("eu-") nucleus, and also pro-KARY-ote method before ("pro-") nucleus.) The "-kinesis" component of "karyokinesis" comes from the very same roots together "kinetic" and refers come movement. Thus, mitosis is the motion of the nucleus. Pack of the DNA wake up in prophase that mitosis so the it"s much easier to relocate rather than having actually to relocate the loose chromatin. Think of moving forty-six strands of thousands of yards the yarn—we would desire it to be tightly coiled to do it manageable.


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Example question #5 : knowledge Stages of Meiosis


Meiosis is the process by i m sorry a ___________ cabinet is formed indigenous a ___________ cell.


Possible Answers:

diploid . . . Haploid


haploid . . . Haploid


diploid . . . Diploid


haploid . . . Diploid


Correct answer:

haploid . . . Diploid


Explanation:

Meiosis is the procedure by which a haploid cabinet is formed from a diploid cell. The difference in between haploid cells and diploid cell is that haploid cell contain one complete collection of chromosomes, conversely, diploid cells contain two complete sets of chromosomes. Meiosis entails the department of a diploid (2n) parental cell. The chromosomes space duplicated, but carry out 2 consecutive divisions. The result is four haploid (n) cells, each with fifty percent the variety of chromosomes together the parent cell because of the separation of homologous pairs in meiosis I.

In contrast, mitosis is the procedure by which a diploid parent cell produces two diploid daughter cells.


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Example question #6 : understanding Stages the Meiosis


Which three occasions most accurately describes what wake up in meiosis I?


Possible Answers:

Homologous chromosomes room duplicated, pair, climate separate


Homologous chromosomes pair, cross over, then separate


Sister chromatids pair, cross over, then separate


Sister chromatids space duplicated, pair, then cross over


None the these occur in meiosis I


Correct answer:

Homologous chromosomes pair, cross over, then separate


Explanation:

In meiosis I, the homologous chromosomes have already been copied in S phase of interphase. The sisters chromatids are the same at this stage. Homologous chromosomes pair in prophase I, developing tetrads. The tetrads then cross over, trading genetic material. Then, the genetically-mixed tetrads line up top top the metaphase plate and also are be separated in anaphase I. Note that ~ the an initial meiotic division, the 2 daughter cells are nonidentical and also are haploid.


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Example inquiry #7 : understanding Stages of Meiosis


Meiosis produce __________ daughter cells. 


Possible Answers:

three


four


two


one


Correct answer:

four


Explanation:

Meiosis entails two divisions and also results in four distinctive daughter cells called gametes. Meiosis begins with one parental cell, after ~ the first department there are two daughter cells, and then those each split, resulting in a total of 4 daughter cells.


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Example question #8 : understanding Stages the Meiosis


Homologous chromosomes pair increase in which phase of meiosis?


Possible Answers:

Metaphase II


Metaphase I


Prophase II


Prophase I


Correct answer:

Prophase I


Explanation:

In prophase i chromosomes become compact and also homologous chromosomes pair up. Also throughout prophase I, the nuclear membrane starts to break down and the spindle apparatus starts to form.


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Example question #9 : knowledge Stages the Meiosis


Homologous chromosomes line up follow me the cell"s equator in i beg your pardon stage? 


Possible Answers:

Anaphase II


Metaphase II


Metaphase I


Anaphase I 


Correct answer:

Metaphase I


Explanation:

In metaphase I, homologous chromosomes heat up follow me the facility of the cell in order come be pulled apart. Remind that throughout meiosis I, homologous chromosomes pair, cross over, and separate. Meiosis II is when the sister chromatids space separated.


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Example inquiry #10 : knowledge Stages the Meiosis


Sister chromatids different in which stage of meiosis?


Possible Answers:

Telophase II


Telophase I


Anaphase I


Anaphase II


Correct answer:

Anaphase II


Explanation:

Chromatid disjunction occurs in anaphase II ~ the chromosomes heat up along the equator throughout metaphase II. The chromosomes are then pulled apart, with one chromatid moving north, and also one relocating south. The next steps are telophase, and also cytokinesis, which ~ above completion, will result in genetically unique haploid gametes.

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