Question

Which one of the following statements about meiosis in plants is not correct?
A.The cytometric channels in the medicate of higher plants permits passage of several cytoplasm components from one cell to other to maintain the meiotic synchrony.
B.There is a conspicuous reappearance of a large proportion of ribosome population during zymogen in the meiocytes.
C.During early prophase, the chromosome condenses a clump on to one part of the nuclear envelope to constitute the so-called synthesis stage
D.Synaptonemal complex of zygotene is the structure responsible for chromosomal alignment and pairing

Answer 1

Hint: Meiosis is the specialised kind of cell division which decreases the number of the chromosome by half and it results in the formation of haploid daughter cells. The production of offspring by sexual reproduction includes the fusion of two gametes each with a complete haploid set of chromosomes.

Complete answer:
The meiosis consists of two sequential cycles of nuclear and cell division known as meiosis I and meiosis II but only in a single cycle of DNA replication. Meiosis I start after the parental chromosomes have replicated to produce identical sister chromatids at the S phase. The meiosis involves the pairing of homologous chromosomes and recombination between the non-sister chromatids of homologous chromosomes. In plants, the meiosis takes place in anther sac of the stamen and the ovules which are found within the ovary. It is a type of cell division which produces reproductive cells like plants and fungal spores etc.
The prophase of the first meiotic division is typically longer and more complex than the prophase of mitosis. Various events take place during the process of meiosis such as there is a conspicuous reappearance of a large proportion of ribosome population during zygotene in the monocytes, during early prophase, the chromosome condenses a clump on to one part of the nuclear envelope to constitute the so-called synthesis stage, a synaptonemal complex of zygotene is the structure responsible for chromosomal alignment and pairing etc.
Hence, the correct answer is A.

Note: Meiosis is the mechanism by which the control of specific chromosome number of each species is achieved across generations in sexually reproducing organisms. It also increases the genetic variability in the population of organisms from one generation to the next.