Q. 44.0( 3 Votes )
During anaphase-I of meiosis
A. Homologous chromosomes separate
B. Non-homologous chromosomes separate
C. Sister chromatids separate
D. Non-sister chromatids separate
During anaphase I, as the spindle fibre contracts homologous chromosomes separate to opposite poles.
Rate this question :
Comment on the statement – Meiosis enables the conservation of specific chromosome number of each species even though the process per se, results in reduction of chromosome number.Biology - Exemplar
Label the diagram and also determine the stage at which this structure is visible.Biology - Exemplar
An organism has two pair of chromosomes (i.e., chromosome number = 4). Diagrammatically represent the chromosomal arrangement during different phases of meiosis-II.Biology - Exemplar
Comment on the statement – Telophase is reverse of prophase.Biology - Exemplar
Name a cell that is found arrested in diplotene stage for months and years. Comment in 2-3 lines how it completes cell cycle?Biology - Exemplar
In which phase of meiosis are the following formed? Choose the answers from hint points given below.
a. Synaptonemal complex ____________________________
b. Recombination nodules ____________________________
c. Appearance/activation of ____________________________
d. Termination of chiasmata _ ___________________________
e. Interkinesis ____________________________
f. Formation of dyad of cells _ ___________________________
Hints : 1) Zygotene, 2) Pachytene, 3) Pachytene, 4) Diakinesis, 5) After Telophase-I /before Meosis-II, 6) Telophase-I /After Meiosis-I.
Biology - Exemplar
An anther has 1200 pollen grains. How many pollen mother cells must have been there to produce them?Biology - Exemplar
Identify the wrong statement about meiosisBiology - Exemplar