Search SchoolNGR

Wednesday, 06 May 2026
Register . Login

Biology Past Questions and Answers

Jamb Biology Questions

Question 1201:
The probability of a baby being a boy or a girl depends on the contribution of the
  • A Father's sex cell
  • B Father's somatic chromosome
  • C Mother's sex cell
  • D Mother's X-chromosome
View Answer & Explanation
Question 1202:
Which of the following statements is true of blood groups and blood transfusion?
  • A Group O is the universal recipient
  • B Group A can donate to group A only
  • C Group AB is the universal recipient
  • D Group B can donate to group B only
View Answer & Explanation
Question 1203:
Which of the following is likely to encourage inbreeding in plants?
  • A Dioecious
  • B Protandrous
  • C Monoecious
  • D Hermaphrodite
View Answer & Explanation
Question 1204:
A tall plants crossed with a dwarf one produces offspring of which half are tall and half are dwarf. What are the genotypes of the parents?
  • A TT, TT
  • B Tt, tt
  • C TT, tt
  • D Tt, Tt
View Answer & Explanation
Question 1205:
In man, the ability to roll the tongue is a variation classified as
  • A Anatomical
  • B Physiological
  • C Structural
  • D Morphological
View Answer & Explanation