Cell The Unit of Life Test No-8 August 5, 2017admin0 Comments CategoriesCell The Unit of Life NEET Foundation Class VIII-Botany-Cell The Unit of Life 1. The diameter of perinuclear space is 4) 30 – 50 nm 1)10-50nm 2) 50-100 nm 3) 20 – 40 nm 2. Rough texture of outer nuclear membrane is due to the presence of RER SER Nuclear pores Ribosomes 3. Transport of RNA and protein molecules in between nucleus and cytoplasm in both directions is facilitated by RER Nuclear envelope Nuclear pores Perinuclear space 4. Cell organdie not found in erythrocytes of many mammals is Mitochondria Ribosomes Nucleus All 5. Enucleate living plant cells are Erythrocytes (immature Erythrocytes) Immature sieve tube cells Mature sieve tube cells Tracheary elements 6. Amembranous spherical structure found in the nucleoplasm is Chromatin Nucleolus Histones All 7. Site for active ribosomal RNA synthesis in nucleus is Nucleoplasm Chromatin Nucleolus Nuclear envelope 8. Eukaryotic chromosome material of chromosome is DNA Histones RNA All the above 9. Major packaging material of chromosome is DNA RNA Histones All 10. The part of chromosome at primary constriction area is called Kinetochore Centromere Chromatin Nucleus 11. Proteinaceous disc shaped structures associated with centromere of a chromosome are Kinetochore Centromere Chromatin Nucleus 12. Component of a chromosome which divides it into two arms is Primary constriction Secondary constriction Nuclear organizer Trebent 13. A chromosome with two equal arms is Sub-metacentric Metacentric Telocentric Acrocentric 14. Chromosomes with two unequal arms is Metacentric Sub – metacentric Acrocentric 2 and 3 15. A Chromosome with one shorter arm and one longer arm is Metacentric Sub – metacentric Acrocentric Telocentric 16. A Chromosome with one extremely short and one very long arm is Acrocentric Telocentric Metacentric Sub – metacentric 17. A Chromosome with only one arm is Acrocentric Telocentric Metacentric Sub – metacentric 18. The non- stabling constriction at a constant location in a specific chromosome is Primary constriction Secondary constriction Satellilte 1 and 2 Loading … Related posts: NEET UG Botany MCQ-83 Cell The Unit of Life Test No-1 Cell The Unit of Life Test No-2 Cell The Unit of Life Test No-3 Cell The Unit of Life Test No-10 Powered by YARPP.