Which of the following statement is/are correct for prophase of mitosis ?
(i) At the end of this phase nuclear membrane and nucleolus disintegrate.
(ii) At the end of this phase two chromosome and a centromere holding them together.
(iii) This phase begins with the condensation of chromatids along their lengths.

Related MCQs

• Which of the following statement is/are correct for Meiosis-II ? (i) Chromosomes are arranged on equatorial plate in prophase-II (ii) Nucleolus disappear during telophase-II (iii) In anaphase-II, the chromatids with their independent centromeres are called chromosomes. (iv) In metaphase-II, centromere of each chromosome becomes attached to filament of bipolar spindle.
• Match the following : Coulmn-I Coulmn-II (A) Prophase (i) Nuclear membrane and other orgenelles reorganise (B) Metaphase (ii) Arrangement of chromatids on the poles (C) Anaphase (iii) Formation of cytoplasmic fibres of proteins (D) Telophase (iv) Arranged on equatorial plane (E) Cytokinesis (v) The formation of syncytium
• Match the following : Coulmn-I Coulmn-II (A) Prophase-I (i) Chromosomes move toward one plane along with centromere. (B) Metaphase-II (ii) Half the number of chromosomes in seen (C) Anaphase-I (iii) Longest phase of meiosis-I (D) Telophase-I (iv) Two nuclei are seen
• Complete disintegration of nuclear membrane and nucleolus take place during which stage of mitosis ?
• During mitosis nuclear membrane and nucleolus begin to disappear at :
• Which of the following statement is/are correct for Prophase-I ? (i) During diplotene, the members of each pair of homologous chromosomes start moving away from one another. (ii) In zygotene, bivalent chromosomes appear tetravalent. (iii) In diakinesis, chromatids become separated even at the site of chiasmata.
• Which option is correct for the correctly matched groups for the column i;column ii and column Column I Column II Column III (a) Resting membrane (i) Na+ Channel get open (e) Na+ and k + pumps are responsible protential for it (b) Active potential (ii) Na+ Channel is closed (f) Last for very short time (c) Depolarization (iii) Na+ ions are more on (g) k + ions move on outerside outer side of membranes (d) Repolarization (iv) K + ions are more on outer (h) Positive charge of inner side of side of membrane membrane
• Column I represents diseases and column II represents their symptoms. Which of the following pairs are correct match for them (Guj.CE.T.2006) ColumnI ColumnII (P) Asthma (i) Recurring of bronchitis (Q) Emphysema (ii) Accumulation of W.B.CS in alveolus (R) Pneumonia (iii) Allergy (a) P = iii, Q = ii, R = i (b) P = iii, Q = i, R = ii (c) P = ii, Q = iii, R = i (d) P = ii, Q = i, R = iii
• During which of the following stage of division nuclear membrane and nucleolus reappear ?
• Match the following : Coulmn-I Coulmn-II (A) Laptotene (i) Nucleolus disappears (B) Zygotence (ii) Appearance of recombination nodules (C) Pachytene (iii) Develoment of Synapsis (D) Diplotene (iv) Chromosome appears filamentous (E) Daikinesis (v) Genes exchange at chaismata