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16

What will the phenotypic ratio when a tall pea plant (TT) is crossed with a short pea plant (Tt)?

  • A. 0:04
  • B. 1:03
  • C. 2:02
  • D. 3:01
  • E. 4:00
View Answer & Discuss (8) NECO 2008
17

A woman with blood group A gives birth to a child with blood group O. Which of the following blood groups cannot belong to the father?

  • A. A
  • B. B
  • C. C
  • D. AB
  • E. O
View Answer & Discuss (11) WAEC 2015
18

Assuming that A is the gene for normal skin color and is dominant, while a is the gene for albinism and its recessive, what is the likely genotype of the couple which had 50% normal and 50% albino offspring?

  • A. AA, aa
  • B. Aa, aa
  • C. AA, Aa
  • D. Aa, Aa
View Answer & Discuss (6) WAEC 2017
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19

Individuals with blood group AB can donate blood to individuals with blood group(s)___________?

  • A. A and B
  • B. A and O
  • C. AB only
  • D. O only
View Answer & Discuss (3) WAEC 2019
20

The diagram below is an illustration of a cross between plants A and B of the same species. Study it and answer the question below;

 

 

2020 Biology WAEC Objective Past Questions | Kofa Study

 

If the F1 generation are plants with high yield and resistance, the genotype of the F1 generation plants would be 

  • A. YYRR
  • B. YyRr
  • C. yyRr
  • D. yyrr
View Answer & Discuss (2) WAEC 2020
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