Continuous variations are due to……….
a) Mutation
b) Crossing over
c) Polyploidy
d) Chromosomal aberrations
During meiosis chiasmata are observed at……
a) Zygotene
b) Diplotene
c) Leptotene
d) Pachytene
In which phase
nuclear membrane is disappearing?
a) Prophase I
b) Metaphase I
c) Anaphase I
d) Telophase I
During which phase the chromosomes arrange themselves on the equator?
a) Prophase I
b) Metaphase I
c) Anaphase I
d) Telophase I
………are attached to the homologous chromosomes
that are lined up on the equatorial plate.
a) Spindles
b) Astar
c) centriole
d) none of these
In which phase
chromosome start movement from the equator towards the pole?
a) Prophase I
b) Metaphase I
c) Anaphase I
d) Telophase I
