WAEC Biology 2015 Theory — Question 12
Question 12 of 19 from the West African Examinations Council (WAEC) Biology 2015 Theory paper, with the correct answer and a full explanation.
Advertisement
4(a)(i). What is a test cross? (ii) What is a monohybrid cross?
Model answer
(i) A test cross is the crossing of an organism whose genotype is unknown with a homozygous recessive organism, in order to determine the unknown genotype. (ii) A monohybrid cross involves the crossing of organisms which differ with respect to only one pair of contrasting characters.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.