Answer:
Metaphase I
Explanation:
Homologous chromosomes are paired to facilitate crossing over during prophase I of the meiosis I. This is followed by alignment of homologous chromosomes at the equator of the cell during metaphase I. The process is assisted by microtubules of spindle apparatus. The kinetochore microtubules of the spindle apparatus attach themselves to the kinetochores of chromosomes.
The two sister kinetochores of duplicated homologous chromosomes are attached to the opposite pole to align the homologous pair at the center of the cells. Metaphase I is followed by anaphase I during which homologous chromosomes move towards the opposite poles.
There are man chemical and physical changes such as geno and pheno.
Answer:
<em>IAU- International Astronomical Union</em>
Explanation:
The International Astronomical Union (IAU) is an organization consisting of professional astronomers from around the whole world. The astronomers in the International Astronomical Union (IAU) work together to assign names and probable functions of different celestial bodies being discovered. The aim of the International Astronomical Union (IAU) is to protect and to safeguard field of astronomy and make progress in this field.