Prepare for NEET Biology Cell Cycle and Cell Division (Meiosis) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert solutions to understand reduction division, crossing over, and genetic variation.
NEET Questions / Botany / Cell Cycle and Cell Division / Meiosis
If a cell has 4 picograms (pg) of DNA after meiosis I, how much DNA did the original cell have during G1 phase?
2 pg
4 pg
8 pg
16 pg
Select the matched ones.
I . S-phase - DNA replication
II. Zygotene - Synapsis
III. Diplotene - Crossing over
IV. Meiosis - Both haploid and diploid cells
V G_2-phase - Quiescent stage
I and II only
III and IV only
III and V only
I,III and V only
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
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
Meiosis involves two sequential cycles of …A… called meiosis-I and meiosis-II but only a single cycle of …B…
Identify A and B to complete the given statement
A: nuclear divisions, B: DNA replication
A: DNA replication, B: nuclear divisions
A: cytokinesis, B: karyokinesis
A: karyokinesis, B: cytokinesis
DNA replicates
Twice in each cell cycle
Only once in each cell cycle
Once in mitotic cell cycle, once in meiotic-I (reductional division) and once in meiotic-II (equational division)
None of the above
What will be the DNA content at the end of S-phase of cell if its meiotic products have 8 pg of DNA in each cell?
8 pg
16 pg
4 pg
32 pg
