OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which phrase best describes meiosis I?
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duplication of paired chromosomes
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fusion of sister chromatids
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division of homologous chromosomes
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creation of two diploid cells
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Explanation:
Detailed explanation-1: -Which phrase best describes meiosis I? duplication of paired chromosomes.
Detailed explanation-2: -Chromosome segregation occurs at two separate stages during meiosis called anaphase I and anaphase II (see meiosis diagram).
Detailed explanation-3: -During prophase I, the pairs of homologous chromosomes come together to form a tetrad or bivalent, which contains four chromatids. Recombination can occur between any two chromatids within this tetrad structure. (The recombination process is discussed in greater detail later in this article.)
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