High college Biology aid » cell Biology » Cell division » Meiosis » knowledge Stages the Meiosis
Explanation:

During prophase I, homologous chromosomes type tetrads follow me the facility of the cell. Full chromosomes room pulled to every pole during anaphase I, bring about two haploid cells at the end of meiosis I. During prophase II, sister chromatids align at the facility of the cell in singular chromosome structures. This sister chromatids are separated throughout anaphase II, resulting in a total of four haploid cells.

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


Explanation:

A diploid cell will have two copies of every chromosome, recognized as a homologous pair. A haploid cell will certainly only have actually one copy of every chromosome, despite the chromosome might consist of 2 sister chromatids.

Diploid cell: (XX)

Haploid cell: (X)

During meiosis I, the cell is diploid since the homologous chromosomes are still located within the very same cell membrane. Only after the very first cytokinesis, once the daughter cell of meiosis i are fully separated, room the cells considered haploid. Adhering to this an initial division, the cell begins meiosis II v prophase II, do this the an initial haploid meiotic stage.


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Example inquiry #3 : expertise Stages that Meiosis


What occurs throughout the S phase of the cell cycle?


Possible Answers:

The cytoplasm splits and forms two diploid daughter nuclei


The cell"s dyed condenses and also forms chromosomes


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


The cabinet grows in size, prepares mRNA and also proteins, and 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 similar sister chromatids attached in ~ the centromere


Explanation:

The S phase occurs between the G1 and also 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 go into the G0 step or the M phase.

During the G1 phase, the cabinet replicates organelles and also grows in size. During the G2 phase, DNA is confirm for damage and the cabinet prepares to divide. The M phase refers to mitosis, when the G0 phase describes quiescence—a period during which the cabinet is not preparing for division.


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Example question #4 : expertise Stages the Meiosis


During which step of meiosis does DNA begin to condense?


Possible Answers:

Prophase I


Metaphase I


Telophase I


Anaphase I


Metaphase II


Correct answer:

Prophase I


Explanation:

Mitosis is likewise known together "karyokinesis." "Karyo-" describes the nucleus. (Remember that eu-KARY-ote means true ("eu-") nucleus, and pro-KARY-ote means 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 of mitosis so that it"s less complicated to move rather than having to move the loose chromatin. Think of moving forty-six strands of numerous yards that yarn—we would want it to it is in tightly coiled to make it manageable.


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Example inquiry #5 : expertise Stages that Meiosis


Meiosis is the procedure by i beg your pardon a ___________ cell is formed indigenous a ___________ cell.


Possible Answers:

diploid . . . Haploid


haploid . . . Haploid


diploid . . . Diploid


haploid . . . Diploid


Correct answer:

haploid . . . Diploid


Explanation:

Meiosis is the process by which a haploid cabinet is developed from a diploid cell. The difference between haploid cells and also diploid cells is that haploid cells contain one complete collection of chromosomes, vice versa, diploid cell contain two complete sets of chromosomes. Meiosis requires the division of a diploid (2n) parent cell. The chromosomes are duplicated, but bring out 2 consecutive divisions. The an outcome is 4 haploid (n) cells, each with half the variety of chromosomes together the parent cell as result of the separation the homologous bag in meiosis I.

In contrast, mitosis is the procedure by i m sorry a diploid parent cell produces 2 diploid daughter cells.


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Example question #6 : expertise Stages that Meiosis


Which three events most accurately defines what occurs in meiosis I?


Possible Answers:

Homologous chromosomes space duplicated, pair, climate separate


Homologous chromosomes pair, overcome over, then separate


Sister chromatids pair, cross over, climate separate


Sister chromatids space duplicated, pair, climate cross over


None of these take place in meiosis I


Correct answer:

Homologous chromosomes pair, cross over, then separate


Explanation:

In meiosis I, the homologous chromosomes have already been duplicated in S phase of interphase. The sisters chromatids are the same at this stage. Homologous chromosomes pair in prophase I, creating tetrads. The tetrads climate cross over, trading genetic material. Then, the genetically-mixed tetrads heat up top top the metaphase plate and also are be separated in anaphase I. Note that after ~ the very first meiotic division, the two daughter cells are nonidentical and are haploid.


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Example question #7 : understanding Stages that Meiosis


Meiosis produce __________ daughter cells. 


Possible Answers:

three


four


two


one


Correct answer:

four


Explanation:

Meiosis requires two divisions and results in four unique daughter cells referred to as gametes. Meiosis begins with one parental cell, after the first division there space two daughter cells, and then those every split, resulting in a full of 4 daughter cells.


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Example concern #8 : expertise Stages that Meiosis


Homologous chromosomes pair up in which stage of meiosis?


Possible Answers:

Metaphase II


Metaphase I


Prophase II


Prophase I


Correct answer:

Prophase I


Explanation:

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


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Example question #9 : expertise Stages the Meiosis


Homologous chromosomes line up follow me the cell"s equator in i m sorry stage? 


Possible Answers:

Anaphase II


Metaphase II


Metaphase I


Anaphase I 


Correct answer:

Metaphase I


Explanation:

In metaphase I, homologous chromosomes line up along the center of the cell in order to be traction apart. Recall that during meiosis I, homologous chromosomes pair, overcome over, and also separate. Meiosis II is once the sister chromatids space separated.


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Example question #10 : understanding Stages that Meiosis


Sister chromatids separate in which phase of meiosis?


Possible Answers:

Telophase II


Telophase I


Anaphase I


Anaphase II


Correct answer:

Anaphase II


Explanation:

Chromatid disjunction wake up in anaphase II ~ the chromosomes line up follow me the equator during metaphase II. The chromosomes space then pulled apart, v one chromatid moving north, and one relocating south. The next actions are telophase, and cytokinesis, which top top completion, will result in genetically distinct haploid gametes.

See more: What Goes Down A Chimney Up The Chimney Down But Cannot Go Down The Chimney Up?


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