High institution Biology assist » cabinet Biology » Cell department » Meiosis » knowledge Stages that Meiosis
Explanation:

During prophase I, homologous chromosomes kind tetrads follow me the facility of the cell. Full chromosomes are pulled to every pole throughout anaphase I, resulting in two haploid cells at the finish of meiosis I. During prophase II, sisters chromatids align in ~ the center of the cabinet in singular chromosome structures. These sister chromatids are separated throughout anaphase II, leading to a complete of 4 haploid cells.

You are watching: During what step in meiosis do the daughter cells become haploid?


Explanation:

A diploid cabinet will have actually two copies of each chromosome, well-known as a homologous pair. A haploid cell will certainly only have actually one copy of every chromosome, though the chromosome might consist of 2 sister chromatids.

Diploid cell: (XX)

Haploid cell: (X)

During meiosis I, the cabinet is diploid because the homologous chromosomes space still situated within the exact same cell membrane. Just after the first cytokinesis, when the daughter cell of meiosis i are fully separated, are the cells considered haploid. Adhering to this very first division, the cell begins meiosis II v prophase II, make this the first haploid meiotic stage.


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Example question #3 : understanding Stages the Meiosis


What occurs throughout the S phase of the cell cycle?


Possible Answers:

The cytoplasm splits and forms 2 diploid daughter nuclei


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


The cell grows in size, prepares mRNA and proteins, and prepares to divide


The cell"s chromatin condenses and forms chromosomes


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


Correct answer:

DNA is replicated, leading to two similar sister chromatids attached in ~ the centromere


Explanation:

The S step occurs between the G1 and G2 phases and also is the stage during which DNA is replicated, and also then checked for defects. Depending on the level of nutrients and energy available, the cell will certainly either get in the G0 step or the M phase.

During the G1 phase, the cell replicates organelles and also grows in size. During the G2 phase, DNA is checked for damage and the cell prepares come divide. The M phase describes mitosis, while the G0 phase refers to quiescence—a period during i beg your pardon the cabinet is not preparing for division.


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Example inquiry #4 : knowledge Stages that Meiosis


During which phase of meiosis does DNA start to condense?


Possible Answers:

Anaphase I


Telophase I


Metaphase II


Prophase I


Metaphase I


Correct answer:

Prophase I


Explanation:

Mitosis is likewise known as "karyokinesis." "Karyo-" refers to the nucleus. (Remember the eu-KARY-ote method true ("eu-") nucleus, and pro-KARY-ote way before ("pro-") nucleus.) The "-kinesis" component of "karyokinesis" comes from the same roots as "kinetic" and refers come movement. Thus, mitosis is the motion of the nucleus. Packing of the DNA occurs in prophase that mitosis so that it"s easier to move rather than having to relocate the loose chromatin. Think of relocating forty-six strands of hundreds of yards the yarn—we would want it to be tightly coiled to do it manageable.


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Example question #5 : knowledge Stages the Meiosis


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


Possible Answers:

diploid . . . Haploid


haploid . . . Diploid


diploid . . . Diploid


haploid . . . Haploid


Correct answer:

haploid . . . Diploid


Explanation:

Meiosis is the process by which a haploid cell is created from a diploid cell. The difference between haploid cells and diploid cell is the haploid cell contain one complete collection of chromosomes, conversely, diploid cells contain two finish sets that chromosomes. Meiosis entails the department of a diploid (2n) parental cell. The chromosomes are duplicated, but bring out two consecutive divisions. The an outcome is four haploid (n) cells, every with half the variety of chromosomes as the parental cell as result of the separation of homologous pairs in meiosis I.

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


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Example inquiry #6 : knowledge Stages of Meiosis


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


Possible Answers:

Homologous chromosomes space duplicated, pair, then separate


Homologous chromosomes pair, overcome over, then separate


None the these take place in meiosis I


Sister chromatids room duplicated, pair, then cross over


Sister chromatids pair, cross over, climate separate


Correct answer:

Homologous chromosomes pair, overcome over, then separate


Explanation:

In meiosis I, the homologous chromosomes have currently been copied in S step of interphase. The sister chromatids are identical at this stage. Homologous chromosomes pair in prophase I, developing tetrads. The tetrads then cross over, trading genetic material. Then, the genetically-mixed tetrads heat up ~ above the metaphase plate and are be separated in anaphase I. Note that ~ the an initial meiotic division, the two daughter cells room nonidentical and are haploid.


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Example inquiry #7 : understanding Stages of Meiosis


Meiosis produce __________ daughter cells. 


Possible Answers:

three


four


one


two


Correct answer:

four


Explanation:

Meiosis entails two divisions and also results in four unique daughter cells called gametes. Meiosis starts with one parental cell, ~ the first department there space two daughter cells, and also then those every split, causing a total of four daughter cells.


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Example concern #8 : expertise Stages the Meiosis


Homologous chromosomes pair up in which stage of meiosis?


Possible Answers:

Metaphase II


Prophase I


Metaphase I


Prophase II


Correct answer:

Prophase I


Explanation:

In prophase ns chromosomes end up being compact and homologous chromosomes pair up. Also during prophase I, the atom membrane begins to breakdown and the spindle apparatus starts to form.


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Example inquiry #9 : understanding Stages the Meiosis


Homologous chromosomes heat up along the cell"s equator in which stage? 


Possible Answers:

Metaphase I


Anaphase I 


Metaphase II


Anaphase II


Correct answer:

Metaphase I


Explanation:

In metaphase I, homologous chromosomes heat up follow me the facility of the cabinet in order to be pulled apart. Recall that during meiosis I, homologous chromosomes pair, overcome over, and also separate. Meiosis II is as soon as the sisters chromatids room separated.


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Example inquiry #10 : knowledge Stages of Meiosis


Sister chromatids different in which phase of meiosis?


Possible Answers:

Telophase II


Telophase I


Anaphase II


Anaphase I


Correct answer:

Anaphase II


Explanation:

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


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