Q1.
Identify the correct statement with regard to G1 phase (Gap 1) of interphase.
Q2.
Some dividing cells exit the cell cycle and enter vegetative inactive stage. This is called quiescent stage (G0). This process occurs at the end of
Q4.
The correct sequence of phases of cell cycle is
Q5.
During cell growth, DNA synthesis takes place on
Q6.
When cell has stalled DNA replication fork, which checkpoint should be predominantly activated?
Q7.
A somatic cell that has just completed the S phase of its cell cycle, as compared to gamete of the same species, has
NEET 2015 Cancelled
medium
Q8.
During which phase(s) of cell cycle, amount of DNA in a cell remains at 4C level if the initial amount is denoted as 2C?
Q9.
In 'S' phase of the cell cycle
Q10.
Given below is a schematic break-up of the phases/stages of cell cycle. Which one of the following is the correct indication of the stage/phase in the cell cycle?
Q11.
At what stage of the cell cycle are histone proteins synthesized in a eukaryotic cell?
Q12.
In the somatic cell cycle
Q13.
If you are provided with root-tips of onion in your class and are asked to count the chromosomes, which of the following stages can you most conveniently look into?
Q14.
Which one of the following precedes reformation of the nuclear envelope during M phase of the cell cycle?
Q15.
Mitotic spindle is mainly composed of which protein?
Q16.
Best material for the study of mitosis in laboratory is
Q17.
Spindle fibre unite with which structure of chromosomes?
Q18.
Microtubule is involved in the
Q19.
How many mitotic divisions are needed for a single cell to make 128 cells?
Q20.
During cell division in apical meristem, the nuclear membrane appears in
Q21.
Which of the following structures will not be common to mitotic cell of a higher plant?
Q22.
Colchicine is an inhibitory chemical, which
Q23.
Which of the following represents the best stage to view the shape, size and number of chromosomes?
Q24.
Mitotic anaphase differs from metaphase in possessing
Q25.
Dissolution of the synaptonemal complex occurs during
Q26.
Match the following with respect to meiosis.
Q27.
Crossing over takes place between which chromatids and in which stage of the cell cycle?
Q28.
The stage during which separation of the paired homologous chromosomes begins is
Q29.
Match the stages of meiosis in column I to their characteristic features in column II and select the correct option using the codes given below.
Q30.
In meiosis crossing over is initiated at
Q31.
Arrange the following events of meiosis in correct sequence
Q32.
The enzyme recombinase is required at which stage of meiosis?
Q33.
The complex formed by a pair of synapsed homologous chromosomes is called
Q34.
During meiosis I, the chromosomes start pairing at
Q35.
During gamete formation, the enzyme recombinase participates during
Q36.
Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres.
Q37.
Synapsis occurs between
Q38.
When paternal and maternal chromosomes change their materials with each other in cell division this event is called
Q39.
Which statement best explains the evolutionary advantage of meiosis?
Q41.
Number of chromatids at metaphase is
Q42.
In meiosis, the daughter cells differ from parent cell as well as amongst themselves due to
Q43.
Meiosis I is reductional division. Meiosis II is equational division due to