Question

In which stage of meiosis the structures, number and shape of chromosomes can be observed?

• A. Prophase I
• B. Metaphase I
• C. Anaphase I
• D. Telophase l

Answer 1

The correct option is B Metaphase I

The first metaphase of meisosis I encompasses the alignment of paired chromosomes along the center (metaphase plate) of a cell, ensuring that two complete copies of chromosomes are present in the resulting two daughter cells of meiosis I. Metaphase I follows prophase I and precedes anaphase I.In meiosis I, the lining-up stage of metaphase I is relatively rapid. Tetrads or bivalents (a pair of chromosomes with four chromatids (2 originals, 2 copies) are pulled into line at what is known as the metaphase (or equatorial) plate. This plate does not actually exist but is an imaginary central line along which the chromosomes are positioned.