Advertisements
Advertisements
Question
What is the importance of chiasma formation?
Advertisements
Solution
Chiasma is the region where crossing-over takes place. By the formation of the chiasma, the exchange of genetic material between non-sister chromatids of the homologous chromosomes is accomplished. So, chiasma is the means of bringing about recombination of characters and thus variations in multicellular organisms
APPEARS IN
RELATED QUESTIONS
Define the following:
Chiasmata
How prophase-I of meiosis differs from prophase of mitosis in an essential way? Describe how it affects the daughter cells?
Explain the Term Diplotene
Write the functional activity of the following structure:
Chiasmata
What is terminalization?
What is a tetrad?
What is zygotene?
Statement I: Chromosomes become gradually visible under light microscope during leptotene stage.
Statement II: The beginning of diplotene stage is recognized by dissolution of synaptonemal complex.
In the light of the above statements, choose the correct answer from the options given below:
The process of appearance of recombination nodules occurs at which sub stage of prophase I in meiosis?
