JAMB Biology · Heredity and variations

Sex-linked characters: JAMB Biology Past Questions and Answers

What the JAMB syllabus covers in Sex-linked characters

Our summary: Traits such as baldness, haemophilia and colour blindness carried on the sex chromosomes.

  • Sex-linked characters (e.g. baldness, haemophilia, colour blindness, etc.)

Objectives

  • identify characters that are sex linked.

Syllabus content © The Joint Admissions and Matriculation Board (UTME).

JAMB Biology questions on Sex-linked characters

  1. JAMB 2024Hemophilia in humans is controlled by the
  2. JAMB 2023Which of the following statements is true regarding sex-linked traits?
  3. JAMB 2022When a colour blind woman marries a normal man, what is the probability of their son being colour blind?
  4. JAMB 2020The probability of a baby being a boy or a girl depends on the contribution of the
  5. JAMB 2018A woman who is heterozygous for the disease haemophilia marries a man who is haemophilic. What percentage of their offspring would have the disease?
  6. JAMB 2014A couple has 10 children, all female. Which of the following best explains the situation
  7. JAMB 2012When a colour-blind man marries a carrier woman. What is the probability of their offspring being colour blind?
  8. JAMB 2011The inheritable characters that are determined by a gene located on the X-chromosome is
  9. JAMB 2010At what stage in the life history of a mammal is the sex of an individual set?

Years with Sex-linked characters questions in DeeepSolve's question bank

From the past questions DeeepSolve holds, not a count of everything the exam body has set.

  • 2024
  • 2023
  • 2022
  • 2020
  • 2018
  • 2014
  • 2012
  • 2011
  • 2010