Genetic homogeneity and exact similarity between chromosomes of various cell within the same type of issue of plant is due to :

Related MCQs

• Match the following. Column – 1 Column – 2 (p) National Bureau of Plant (I) Conservation of biodiversity Genetic Resources (q) World Wild life Fund (ii) Conservation of gene of domesticated animal (r) National Bureau of fish (iii) Conservation of gene of crop plant Genetic Resources (s) National Bureau of Animal (iv) Conservation of gene of Economically valuable Genetic Resources species
• The root cell of wheat plant has 42 chromosomes. What would be the number of chromosomes in the synergid cell ?
• Select correct statement’s for cell cycle. (i) Yeast cell can complete on cell cycle in every 90 minutes (ii) A period between creation of a cell and division of that cell. (iii) Cell cycle is mainly divided into interphase and differentiation like two phases.
• In mitosis the daughter cells resemble to their parent cell. But in meiosis they differ not only from parent cell in having half the number of chromosomes, but also differ among themselves qualitatively in genetic constitution due to.....
• The role of mitosis is not merely to divide a cell into two daugher cells but to ensure genetic continuity from one cell generation. The mechanism ensuring genetic continutity is;
• What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells ?
• A. During interphase, chromosomes are recognized as chromatin network. R. Chromosomes are highly dispersed during this phase.
• A. Number of chiasmata is more in longer chromosomes. R. The number of chiasmata depends on the length of chromosomes.
• 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
• 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.