In what phase of meiosis are tetrads of homologous pairs lined up along the center of the cell and attached to the spindle fibers? anaphase i metaphase ii metaphase i anaphase ii

Metaphase I

During metaphase I homologous chromosomes get arrange in the center of the cell. In metaphase I  pair homologous chromosome line up between the two poles of the cell form the metaphase plate. The spindle fiber microtubule attach at the kinetochore proteins of the centromere of each chromosome.  

Metaphase I  is the correct answer.

Explanation:

Metaphase I phase of meiosis are tetrads of homologous pairs lined up along the center of the cell and attached to the spindle fibers.

Meiosis is a type of cell division where chromosome number gets reduced by half and it produces four haploid cells.

meiosis comprises the steps of meiosis I and meiosis II

In the metaphase I the tetrads align themselves at the metaphase plate whereas, in metaphase II chromosomes align up separately along by the metaphase plate.

Anaphase I chromosomes separate and in Anaphase II sister chromatids of every chromosome get separated and they move towards the opposing poles.

Thus the correct answer is Metaphase I.

the statement is true

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.