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2646
The sudden change in a gene structure or chromosome number in an organism likely to cause an inheritable change in the phenotype is known as
  • A. migration
  • B. mutation
  • C. mitosis
  • D. meiosis
View Answer & Discuss WAEC 2008
2647
The effective cells involved in sickle-cell anaemia disease are
  • A. phagocytes
  • B. lymphocytes
  • C. erythrocytes
  • D. thrombocytes
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2648
What does the chemical composition of the genetic material of all living organisms consist of?
  • A. Deoxyribonucleic acid
  • B. Adenosine diphosphate
  • C. Adenosine triphosphate
  • D. follicle stimulating hormone,
View Answer & Discuss WAEC 2008
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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2649
What of the following occurrences is not a feature of meiosis?
  • A. Formation of four haploid cells
  • B. Two successive nuclear cell division
  • C. Pairing of homologous chromosomes at prophase
  • D. Formation of two diploid cell
View Answer & Discuss WAEC 2008
2650
Which of the following diseases is commonly observed in human males and is sex-linked?
  • A. Beriberi
  • B. Down’s syndrome
  • C. Sickle-cell anaemia
  • D. colour blindness
View Answer & Discuss WAEC 2008
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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