Which of the following processes marks the beginning of the reductional division in meiosis?
Pairing of homologous chromosomes in Prophase I
Alignment of homologous chromosomes at the metaphase plate
Separation of homologous chromosomes in Anaphase I
Separation of sister chromatids in Anaphase II
Related Questions
Which of the following statement(s) is/are not correct about meiosis?
I. Meiosis involves pairing of homologous chromosomes and recombination between them
II. Two diploid cells are formed at the end of meiosis-II
III. Meiosis involves two sequential cycles of nuclear and cell division called meiosis-I and meiosis-II, but only a single cycle of DNA replication
IV. Meiosis-I is initiated after the parental chromosome replication which produce identical sister chromatids at the S-phase
The correct option is
I and III
II only
II and III
I, II, III and IV
The transition between meiosis-I and meiosis-II is
Interkinesis
Cytokinesis
Diakinesis
Karyokinesis
The presence of recombination nodules signifies which crucial event in meiosis?
Crossing over
Independent assortment
Chromosome segregation
Cytokinesis
Phenomenon of crossing over in diploid organisms is responsible for
Linkages between genes
Recombination between linked genes
Segregation between genes
Dominance of gene
The term “meiosis” was given by
Johansen
Knoh and Ruska
Flemming
Farmer and Moore
A zygotene of prophase-I is characterised by
Disjunction
Synaptonemal complex
Crossing over
Terminalisation of chiasmata
Which statement about meiosis is NOT correct?
Meiosis results in four haploid daughter cells.
Meiosis produces genetically identical daughter cells.
Meiosis is essential for sexual reproduction in animals.
Meiosis involves two rounds of cell division.
Which of these events does NOT occur during meiosis II?
Separation of sister chromatids
Alignment of chromosomes at the metaphase plate
DNA replication
Formation of haploid daughter cells
The stage during which separation of the paired homologous chromosomes being is
pachytene
diplotene
diakinesis
zygotene
Chiasmata are formed due to
Crossing over of same part between homologous chromosomes
Crossing over of same part between non-homologous chromosomes
Duplication of homologous and non-homologous chromosomes
Loss of some part of chromosomes
