MCQ on Chromosome Structure: Biology is one of the most important and vital sections in NEET. It includes theories, descriptions, discoveries, diagrams, definitions, explanation of differences and relations. Most of the concepts covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12. Other related sources make up for the rest of the syllabus.
In this post we are providing you MCQ on Chromosome Structure, which will be beneficial for you in upcoming NEET, AIIMS, JIPMER, PGIMER, CBSE Board, ICSE Board, Class 12th, 11th.
Q1. A chromosome is the thickest during ______.
a) anaphase
b) prophase
c) interphase
d) metaphase
Q2. In which typical stage are Lampbrush chromosomes observed? (a) meiotic prophase
a) meiotic prophase
b) mitotic metaphase
c) mitotic prophase
d) mitotic anaphase
Q3. The least level of chromosome organization is ______. (c) nucleosome
a) 30nm fibre
b) solenoid
c) nucleosome
d) none of the above
Q4. If Bb is a gene pair of an individual then the alleles for this gene pair are ______. (d) b and B
a) A and B
b) a and A
c) a and b
d) b and B
Q5. The point at which polytene chromosomes appear to be attached together is known as ______. (d) chromocenter
a) centriole
b) centromere
c) chromomere
d) chromocenter
Q6. Each of the chromosome at the anaphase stage of a bone marrow cell in our body has ______. (a) one chromatid
a) one chromatid
b) two chromatids
c) several chromatids
d) no chromatids
Q7. This has the largest number of chromosomes ______. (d) Ophioglossum reticulatum
a) Pisum sativum
b) Giant redwood tree
c) Haplopappus gracilis
d) Ophioglossum reticulatum
Q8. The diagrammatic representation of karyotype (morphological representation of chromosomes) of a species is known as ______. (d) Idiogram
a) Cladogram
b) Ecogram
c) Chromogram
d) Idiogram
Q9. Euchromatin ______. (d) all of the above
a) stains lightly
b) is partially condensed
c) genetically active chromatin with genes
d) all of the above
Q10. A chromosome with a very short arm and a very long arm is referred to as ______. (c) Acrocentric
a) Metacentric
b) telocentric
c) Acrocentric
d) Sub-metacentric
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