Genetics Vocabulary QUIZ

  1. What term describes the different forms of a gene?
  2. Allele
  3. DNA
  4. What is the molecule that carries the directions for life?
  5. Allele
  6. DNA
  7. How do you describe a genetic combination of two different alleles for a certain trait?
  8. Homozygous
  9. Heterozygous
  10. What is the term that refers to an organism’s inherited physical appearance? It is what you see.
  11. Phenotype
  12. Genotype
  13. What kind of trait always seemed to appear in the offspring produced in Mendel’s first experiment; the trait that usually appears more often? It is usually expressed in the form of a capitalized letter.
  14. Dominant
  15. Recessive
  16. What tool is used to predict all the possible genetic combinations of alleles from a set of parents?
  17. Genetic Engineer
  18. Punnett Square
  19. What do you call the passing of traits from parents to offspring?
  20. Heredity
  21. Pedigree
  22. Selective breeding is..
  23. When breeders mate organisms with desirable traits
  24. When an organism selects whom it wants to breed with
  25. What kind of trait seemed to vanish in the offspring produced in Mendel’s first experiment; the trait that seems to reappear in the second generation? It is usually expressed in the form of a lower case letter.
  26. Dominant
  27. Recessive
  28. What do you call the mathematical chance that an event will occur? It is usually expressed as a percent, fraction or ratio.
  29. Genetics
  30. Probability
  1. How do you describe a genetic combination in which both allele inherited are the same?
  2. Purebred
  3. Hybrid
  1. What mode of inheritance expresses two different traits at the same time? For example, a child inherits a circle eyed trait from mom and a slanted eyed trait from dad and has one eye that is a circle and the other eye is slanted.
  2. Incomplete dominance
  3. Co-dominance
  1. What is a segment of DNA that codes for a specific trait?
  2. Gene
  3. Chromosome
  4. What tool can be used to predict the probability of inheriting a specific trait?
  5. Punnett square
  6. Pedigree
  7. What do you call a characteristic that is carried only by the Y chromosome?
  8. Sex chromosome
  9. Sex-linked trait
  10. A white mouse and a black mouse have offspring which are gray. Which mode of inheritance took place?
  11. Incomplete dominance
  12. Codominance
  13. The combination of alleles such as BB is called the
  14. Phenotype
  15. Genotype
  16. What is the structure within a cell that is made up of DNA and protein and carries all the genetic information of life?
  17. gene
  18. chromosome
  19. What tool can be used to trace a trait through generations?
  20. Punnett Square
  21. Pedigree
  22. What carries genes that determine gender?
  23. Sex chromosomes
  24. Sex-linked traits

BONUS:

In Snorks, slanted eyes (E) are dominant to circle eyes (e). Write the genotype and phenotype for a snork that is homozygous recessive:

(+2) Genotype:

(+2) Phenotype: