WAEC (WASSCE) Biology · Biology of heredity (genetics)
Probability in genetics (hybrid formation): WAEC Biology Past Questions and Answers
What the WAEC syllabus covers in Probability in genetics (hybrid formation)
Our summary: Working out the likely offspring of a cross, without formal probability calculations.
- Probability in genetics (hybrid formation) (Computation of probability is not required.)
Syllabus content © The West African Examinations Council (WASSCE (harmonised West African syllabus)).
WAEC (WASSCE) Biology questions on Probability in genetics (hybrid formation)
- WAEC 2023What is the probability that a pregnancy would result in a male child?
- WAEC 2022Two tall plants were crossed and all the F1 plants were tall. when the F1 plants were selfed, some of the F2 plants were tall while others were short what are…
- WAEC 2019A man whose blood group is heterozygous B is married to a woman whose blood up is also heterozygous B Which of the following statements is correct about the…
- WAEC 2019The cross between RrTt and rrtt where R is a gene for red colour and T for tallness will result in …
- WAEC 2017Assuming 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…
- WAEC 2016A cross between two parents produced four offspring's with blood groups AB, BB, BO and AO. what is the blood group of their parents?
- WAEC 2013A man's blood group is AB. What is the probability of the man giving birth to a child with blood group O?
- WAEC 2012Two plants with red flowers were back crossed, which of the following results indicate that the plants are heterozygous red flowers, where red flowers are…
- WAEC 2012Two yellow-flowered hybrid plants each carrying a recessive factor for flowers with green colour were crossed. Which of the following ratios shows the correct…
- WAEC 2012In a case of complete dominance, what is the phenotypic ratio of the cross Bb X Bb; where B =black and b = white?
- WAEC 2011A man with blood group It IA IA is married to a woman with blood group IA IO. The blood group of their son is likely to be
- WAEC 2011What is the probability? of a man of blood group AB married to a woman of blood group O producing a child of blood group O?
- WAEC 2010The percentage probability that a normal male married to a carrier woman would have a haemophilic male child is
- WAEC 2010What would be the phenotypic ratio of the offspring of a cross between a heterozygous dominant parent and a double recessive parent?
- WAEC 2010A man heterozygous for albino gene marries a woman who is also heterozygous for the gene. Both have normal skin colour. The probability that they will have an…
Years with Probability in genetics (hybrid formation) questions in DeeepSolve's question bank
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