Pairing of homologous chromosomes and crossover occurs during which phase of Meiosis? Prophase- I Metaphase-I Anaphase-I Telophase-I
Question
Pairing of homologous chromosomes and crossover occurs during which phase of Meiosis? Prophase- I Metaphase-I Anaphase-I Telophase-I
Solution
The pairing of homologous chromosomes and crossover occurs during the Prophase-I phase of Meiosis. This is the stage where each chromosome pairs with its homologous chromosome to form a structure called a bivalent or a tetrad, which contains four chromatids. During this pairing, crossover (or recombination) can occur, where segments of DNA are exchanged between the homologous chromosomes. This process contributes to genetic diversity in offspring.
Similar Questions
The phase where homologous chromosomes separate.Group of answer choicesmeiosis Imeiosis IIboth mitosis and meiosis Imitosisboth mitosis and meiosis 11
The stage of meiosis in which chromosomes pair and cross over is:
Crossover of homologous chromosomes does not occur.Group of answer choicesmeiosismitosisboth mitosis and meiosisneither mitosis nor meiosis
The stage of meiosis which normally provides the greatest amount of variation in the eventual off-spring is: the independent assortment of homologous chromosomes during anaphase I the organisation of chromosomes in metaphase the mutation process affecting genes the crossing over of chromatids of heterologous chromosomes
The first phase of meiosis, during which crossing-over occurs, is I.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.