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1626
One of the factors that must be considered for safe blood transfusion is
  • A. social class of the donor
  • B. age of the recipient
  • C. rhesus factors of the donor and the recipient
  • D. nationality of the donor
  • E. weight of the recipient
View Answer & Discuss (1) WAEC 1993
1627
One of the major criticisms against ‘Mendelian laws is that they do not recognize that
  • A. one trait is often controlled by many pairs of genes
  • B. single factor inheritance is never a reality
  • C. complete dominance is always possible
  • D. incomplete dominance is not possible
  • E. hybrids exist in living organisms
View Answer & Discuss (3) WAEC 1993
1628
Identical twins inherit their genes from
  • A. the same ovum and different sperms
  • B. the same sperm and different ova
  • C. different sperms and many ova
  • D. the same ovum and the same sperm
  • E. many ova and many sperms
View Answer & Discuss (9) WAEC 1993
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1629
The offspring produced when pure strains interbreed is described as
  • A. dominance
  • B. phenotype
  • C. allele
  • D. genotype
  • E. hybrid
View Answer & Discuss (5) WAEC 1993
1630
Which of the following diseases or disorders can be prevented by the application of the knowledge of
heredity through marriage counselling?
  • A. Sickle cell anaemia
  • B. Haemophilia
  • C. Diabetes mellitus
  • D. Colour blindness
  • E. River blindness
View Answer & Discuss WAEC 1993
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