In cell cycle, during, which phase chromosomes are arranged in equatorial plate ?
Metaphase
Anaphase
Telophase
Prophase
A.
Metaphase
Metaphase in both meiosis and mitosis is characterized by the orientation of chromosomes themselves on the spindle fibres at the equatorial plate.
In prophase, chromatin of the nucleus become condensed forming chromosomes. Chromosome replication occurs in prophase.
Anaphase is characterized by the separation of chromatids.
Telophase in a sense is a reversible process of prophase.
During meiosis crossing over occurs between which part of homologous chromosome ?
Sister chromatids
Non-sister chromatids
Genes
Alleles
Which of the followings does not occur in the interphase of eukaryotic cell division?
Increase of ATP synthesis
Increase of DNA synthesis
Increase of RNA synthesis
Reduction in cell size
Match the item in column I with those in column II and the choose the correct answer.
| Column I | Column II |
| A. Mitosis | 1. Occurs in diploid cells only |
| B. Meiosis | 2. Occurs in both haploid and diploid cells |
| 3. Daughter and parent cells have same chromosome numbers | |
| 4. Synapsis of homologous chromosomes. |
A- 1; B- 2
A- 2; B- 3
A- 3; B- 4
A- 4; B- 1
In synapsis two homologous chromosomes are connected at
centromeres
chromomeres
telomeres
none of these
Stages in proper sequence of prophase- I are
zygotene, leptotene, pachytene, diakinesis
leptotene, zygotene, pachytene, diplotene and diakinesis
eptotene, pachytene, zygotene, diakinesis and diplotene
diplotene, diakinesis, pachytene, zygotene and leptotene
