Q.1
Crossing over occurs during ... .... [ JIPMER 2002 ]
  • a) Leptotene
  • b) Pachytene
  • c) Diplotene
  • d) Diakinesis
Q.2
In meiosis, synapsis occurs during ... ... [ Odisha 2007 ]
  • a) S -phase
  • b) Interphase
  • c) Leptotene
  • d) Prophase
Q.3
Chromosomes appear beaded during ... .... [ MPPMT 2011 ]
  • a) Pachytene
  • b) Leptotene
  • c) Diakinesis
  • d) Diplotene
Q.4
Each chromosome at anaphase stage of bone marrow cell in our body has ... ... [ CBSE 1995 ]
  • a) One chromatid
  • b) Two chromatids
  • c) Several chromatids
  • d) No chromatids
Q.5
In metaphase of mitosis, the chromosomes ... ... [ kerala 2002 ]
  • a) Break and disintegrate
  • b) undergo condensation
  • c) Line up at equator
  • d) Decondense and elongate
Q.6
Which is not a component of mitosis? .... [ MPPMT 2000 ]
  • a) Leptotene
  • b) Zygotene
  • c) Pachytene
  • d) All the above
Q.7
Plant material suited for studying mitosis is ... ... [ CBSE 2002 ]
  • a) Shoot apex
  • b) Root apex
  • c) Cork/ leaf tip
  • d) Anther
Q.8
Cyclin is associated with ... ... [ RPMT 2000 ]
  • a) Cyclosis
  • b) Mitosis
  • c) Glycolysis
  • d) Haemolysis
Q.9
In meiosis .. ....[ Odisha 2011 ]
  • a) First division is reductional
  • b) first division is equational
  • c) Second division is reductional
  • d) None of the above
Q.10
Cyclin is required for cell cycle. Which other molecule is essential for completion of cell cycle? .... .. [ Wardha 2005 ]
  • a) CCK
  • b) CKC
  • c) CDK
  • d) CKD
Q.11
Number of chromosome groups at equatorial plate of metaphase I of a plant body having 2n =50 chromosomes shall be ... .. [ MPPMT 1995 ]
  • a) 25
  • b) 50
  • c) 100
  • d) 75
Q.12
Brachymeiois consists of ... ... [ AMU 2003 ]
  • a) Two reduction divisions and one equational division
  • b) One reduction division and one equational division
  • c) One reduction division and two equational divisions
  • d) Two reductional division nad two equational divisions
Q.13
During meiosis I, the number of chromosomes is ... ... [ CPMT 1992 ]
  • a) Doubled
  • b) Tripled
  • c) Halved
  • d) Quadrupled
Q.14
Synaptonemal complex is formed during ... .... [ Odisha 2011 ]
  • a) Leptotene
  • b) Pachytene
  • c) Diakinesis
  • d) Zygotene
Q.15
Mitosis can be studied in .... ... [ CPMT 1998 ]
  • a) Onion root tip
  • b) Garlic root tip
  • c) Tendril tip
  • d) All the above
Q.16
Meiotic cell division is also termed as reduction division because of ... ... [ Manipur 2005 ]
  • a) Involvement of gametes
  • b) Doubling of chromosomes
  • c) Elimination of chromosomes
  • d) Number of chromosomes becomes halved
Q.17
Phase of cell cycle when DNA polymerase is active ... ... [ KCET 2002 ]
  • a) G1
  • b) S
  • c) G2
  • d) M
Q.18
Recombination nodules are found during ... ... [ RPMT 2000 ]
  • a) Anaphase
  • b) Metaphase
  • c) Prophase
  • d) Telophase
Q.19
Amitosis is .. .... [ CPMT 2000 ]
  • a) Division involving formation of chromosome bridges
  • b) Division involving spindle formation
  • c) Division in which chromosomes are unequally distributed
  • d) Cleavage of nucleus without recognizable chromosome distribution
Q.20
Significance of meiosis lies in ... ... [ MPPMT 1995 ]
  • a) Production of genetic variability
  • b) maintaining constancy of chromosome number during sexual reproduction
  • c) Reduction of chromosome number to one half
  • d) All the above
Q.21
Chromosomes are least condensed during ... ... [ RPMT 2005 ]
  • a) Telophase
  • b) Interphase
  • c) Metaphase
  • d) Anaphase
Q.22
The two chromatids of a metaphase chromosome represent ... ... [ KCET 2003 ]
  • a) Replicated chromosomes to be separated at anaphase
  • b) Homologous chromosome of a diploid set
  • c) Non-homologous chromosomes joined at the centromere
  • d) Maternal and paternal chromosomes joined at the centromere
Q.23
Cross-like configurations when non-sister chromatids of bivalent come in contact during first meiotic division are ... .... [ MPPMT 1992 ]
  • a) Chiasmata
  • b) Chromomere
  • c) Centromeres
  • d) Bivalents
Q.24
In cell division, cell plate is formed during ... .... [ JKCMEE 2000 ]
  • a) Anaphase
  • b) Metaphase
  • c) Telophase
  • d) Cytokinesis
Q.25
During mitosis ER and nucleolus begin to disappear at ... ... [ CBSE 2010 ]
  • a) Early metaphase
  • b) Late metaphase
  • c) Early prophase
  • d) Late prophase
Q.26
During meiosis ... ... [ BHU 2005 ]
  • a) Linkage is disturbed
  • b) Homologous chromosomes are separated
  • c) Homologous chromosomes do not segregate
  • d) All the above
Q.27
What is the requirement of equational division in meiosis ... ... [ JKCMEE 2004]
  • a) Formation of four gametes
  • b) Segregation of replicated chromosomes
  • c) Equal distribution of haploid chromosomes
  • d) Equal distribution of genes on chromosomes
Q.28
Chromosome number is restored by ... ... [ CMC 2002 ]
  • a) Meiosis
  • b) Mitosis
  • c) Crossing over
  • d) Interphase
Q.29
When does pairing/synapsis of homologous chromosomes ( bivalent formation ) occur in meiosis? ... .... [ MPPMT 2011 ]
  • a) Diplotene
  • b) Pachytene
  • c) Zygotene
  • d) Leptotene
Q.30
Which is correct for meiotic cell cycle? ... ... [ WB 2008 ]
  • a) S → G1 → G2 → M → S
  • b) G2 → G1 → S → M → G2
  • c) G1 → G2 → S → M → G2
  • d) G1 → S → G2 → M → G1
0 h : 0 m : 1 s