. In the hexaploid wheat, the haploid (n) and basic (X) numbers of chromosomes are AIPMT - 2007

Related MCQs

• The root cell of wheat plant has 42 chromosomes. What would be the number of chromosomes in the synergid cell ?
• 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.
• 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.
• What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells ?
• The genes Controlling the seven characters of a pea plant studied by Mendel are now known to be located on how many different chromosomes? AIPMT - 2003
• .A woman with 47 chromosomes due to 3 copies of chromosome 21 is characterized by AIPMT - 2005
• . In pea plants, yellow seeds are dominant to green, If a heterozygous yellow seeded plant isCorssed with a green seeded plants, what ratio of yellow and green seeded plants, would you expect in F1 generation? AIPMT - 2007