Biology Practice MCQ Page 22

Multiple Choice questions for Biology in the sets of 10 each on one page with questions and answers. All sets are useful in the preparation of subject tests for employment or admission.
Question: 2276   During which phase or phase of cell division,the morphology of the chromosomes is best studies?
  1. telophas,anaphas
  2. prohas,anaphas
  3. anaphas,metaphas
  4. none of the above
Question: 2286   Chromosomes having the centromere located at their one end are called
  1. Telocentric chromosomes.
  2. Acrocentric chromosomes.
  3. Submetacentric chromosomes.
  4. Metacentric chromosomes.
Question: 2287   Which type of chromosomes have the centromere located at one end of chromosomes ?
  1. Telocentric
  2. Acrocentric
  3. Dicentric
  4. None of the above.
Question: 2288   Which type of chromosomes have a very small or short arm?
  1. Telocentric
  2. Acrocentric
  3. Monocentric
  4. None of the above.
Question: 2302   It helps in the identification of chromosomes in the human and other species.
  1. Karyotype
  2. Evalution
  3. Histones
  4. Genetics
Question: 2306   The term used for the total chromosomes complement of a cell is known as
  1. DNA
  2. Histones
  3. Autosome
  4. Karyotype
Question: 2307   chemical composition of chromosomes has revealed that it is composed of
  1. DNA & Peptides
  2. DNA & Amino acids
  3. DNA & Histones
  4. DNA & Cystoles
Question: 2308   Under the electron microscope ,nuclesome can be visualized as beads about ----nm (1 nm = 10 -9 diameter)
  1. 5 nm
  2. 15 nm
  3. 10 nm
  4. 20 nm
Question: 2309   Each nucleosome is formed by molecules of various type of histones known as
  1. histone centromere
  2. histone octamere
  3. histone chromomere
  4. histone blastomere
Question: 2310   Each nucleosome is formed by molecules of various type of histones known as
  1. histone centromere
  2. histone octamere
  3. histone chromomere
  4. histone blastomere
Question: 2311   It is formed by a repeating nucleosome units ,which are closely attached to each other to a continuous fibre.
  1. Chromatin
  2. Centromere
  3. Chromosome
  4. DNA
Question: 2312   Each nucleosome is formed by------ molecules of various type of histones with two turns of DNA molecule.
  1. 8
  2. 10
  3. 12
  4. 16

Answers to the questions of Biology on this page

Following list gives the correct choice for the answer of the Biology mcqs.
2276 . C       2286 . A       2287 . A       2288 . B       2302 . A       2306 . D       2307 . C       2308 . C       2309 . B       2310 . B       2311 . A       2312 . A      

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