Genetics Review Game

Word Problems 1. In some species of dog, black fur color (B) is dominant to brown fur color (b). What is the genotype of an individual that is a purebred for brown fur?

Word Problems 2. In dragons, the allele for fire breathing is dominant (F). What are two ways to write the genotype for a fire breathing dragon?

Word Problems 3. If a heterozygous purple flowered pea plant (Aa) is crossed with a white flowered plant (aa) how many of the offspring will have white flowers? (Write the answer as a percentage).

Word Problems 4. In tomatoes, red fruit is dominant to yellow fruit. If two red fruit heterozygous plants (Rr) are crossed, what is the ratio of the offspring’s genotypes?

Word Problems 5. In cats, long hair is recessive to short hair. A true-breeding (homozygous) short-haired male is mated to a long-haired female. What will their kittens look like? ( Genotype and phenotype).

Word Problems 6. About 80% of the human population can taste the chemical phenolthiocarbamide (PTC), while the other 20% can’t. This characteristic is governed by a single gene with two alleles, a tasting allele and a non-tasting allele. Based on this information, which allele (tasting or non-tasting) is dominant?

Word Problems 7. Mr. and Mrs. Jones have six children. Three of them have attached earlobes (recessive) like their father, and the other three have free earlobes like their mother. What are the genotypes of Mr. and Mrs. Jones and of their numerous offspring?

Word Problems 8. Mr. Smith does not have cystic fibrosis (CF) and neither does his wife Sally. Their son, Fred is born with CF. What genotype must Mr. and Mrs. Smith have in order to have a son with CF?

Word Problems 9. D is for no dimples and d is for dimples. A homozygous dominant person (DD) is crossed with a heterozygous person (Dd)… A. What is the offspring genotype and phenotype?

Word Problems 10. A rare bird is found in Africa. It has bright pink feathers that are recessive to plain brown feathers. If you crossed a female with pink feathers to a male with brown feathers that had the heterozygous genotype, What % of the offspring would have bright pink feathers?

11. Where is DNA located in a cell?

12. Why is DNA important in a cell?

13. When does a dominant trait appear?

14. What does a recessive trait appear?

15. How many parents does an asexual reproducer have?

16. How many parents does a sexual reproducer have?

17. What is an example of a structural trait?

18. What is an example of a structural trait? Dog barking at the mailman Owl with a specific way of hunting Flowers dispersing pollen in the wind Man with a widows peak

19. What type of reproduction is a flower?

20. What form of asexual reproduction involves splitting a parent cell into 2 identical daughter cells?

21. What kind of reproduction requires gametes?

22. What type of reproduction results in offspring that have structural traits identical to the parents?

23. What type of asexual reproduction involves a bud growing and detaching off of a parent and developing into an offspring.

24. Which of the following is an example of asexual reproduction? A bee pollinating a flower Pollination occurring by pollen being blown around by the wind A bud getting detached from the hydra parent A frog laying eggs to be fertilized by a male

25. What type of reproduction helps a species better adapt to changes in the environment?