The stage of meiotic cell cycle that is charaterised by appearance of recombination nodule are also characterised by all except :-More clearly visible tetradCrossing overRecombination of genetic materialDissolution of synaptonemal complex
Question
The stage of meiotic cell cycle that is charaterised by appearance of recombination nodule are also characterised by all except :-More clearly visible tetradCrossing overRecombination of genetic materialDissolution of synaptonemal complex
Solution
The stage of the meiotic cell cycle that is characterized by the appearance of recombination nodules is also characterized by all of the following except:
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More clearly visible tetrad: During this stage, the homologous chromosomes pair up and form a structure called a tetrad. This allows for the exchange of genetic material between the homologous chromosomes.
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Crossing over: Crossing over is a process that occurs during this stage where genetic material is exchanged between the homologous chromosomes. This leads to genetic recombination and increases genetic diversity.
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Recombination of genetic material: As mentioned earlier, the exchange of genetic material between the homologous chromosomes occurs during this stage. This recombination leads to the creation of new combinations of genes.
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Dissolution of synaptonemal complex: The synaptonemal complex is a protein structure that holds the homologous chromosomes together during the pairing process. However, during this stage, the synaptonemal complex starts to dissolve, allowing for the separation of the homologous chromosomes.
Therefore, the correct answer is "More clearly visible tetrad" because the appearance of recombination nodules is not associated with the visibility of the tetrad.
Similar Questions
The stage of meiosis in which chromosomes pair and cross over is:
Identify the stages of Meiosis where each event happens*8 pointsP-I M-i A-I T-I P-II M-II A-II T-IIChromosomes decondense, nuclear membrane may reform, cell divides (cytokinesis) to form two haploid daughter cells Spindle fibers contract and separate the sister chromatids, chromatids (now called chromosomes)move to opposite poles Chromosomes condense, nuclear membrane dissolves, homologous chromosomes form bivalents, crossing over occurs Spindle fibers from opposing centrosomes attach to chromosomes (at centromere) and align them along the cell equator. Spindle fibers contract and split the bivalent, homologous chromosomes move to opposite poles of the cell Spindle fibers from opposing centrosomes connect to bivalents (at centromeres) and align them along the middle of the cell Chromosomes condense, nuclear membrane dissolves, centrosomes move to opposite poles (perpendicular to before) Chromosomes decondense, nuclear membrane reforms, cells divide (cytokinesis) to form four haploid daughter cells Chromosomes decondense, nuclear membrane may reform, cell divides (cytokinesis) to form two haploid daughter cells Spindle fibers contract and separate the sister chromatids, chromatids (now called chromosomes)move to opposite poles Chromosomes condense, nuclear membrane dissolves, homologous chromosomes form bivalents, crossing over occurs Spindle fibers from opposing centrosomes attach to chromosomes (at centromere) and align them along the cell equator. Spindle fibers contract and split the bivalent, homologous chromosomes move to opposite poles of the cell Spindle fibers from opposing centrosomes connect to bivalents (at centromeres) and align them along the middle of the cell Chromosomes condense, nuclear membrane dissolves, centrosomes move to opposite poles (perpendicular to before) Chromosomes decondense, nuclear membrane reforms, cells divide (cytokinesis) to form four haploid daughter cells
The first phase of meiosis, during which crossing-over occurs, is I.
The reciprocal exchange of genetic material between nonsister chromatids during prophase I of meiosis.Group of answer choicestranslocationduplicationnondisjunctiondeletioncrossing overinversion
At the end of meiosis, a diploid parental cell has produced:
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