- 1. Traits are characteristics that can only be passed from a (n) ____________ thing to its _____________
A) living, ancestors B) single celled, nucleus C) living, offspring D) asexual, organs
- 2. The process by which traits are passed from parents to offspring is called
A) dominance B) meiosis C) heredity D) recessive genes
- 3. For each trait, there are __________ allele possibilities
A) 2 B) unlimited C) 4 gamete D) 1
- 4. Genetic make up of an organism
A) phenotype B) genotype C) alleles D) genotypic
- 5. The physical trait that is expressed in an individual
A) heterozygous B) genotype C) homozygous D) phenotype
A) genetics B) Punnett Square C) alleles D) traits
- 7. When alleles of an organism are either both dominant or recessive, this is called
A) homozygous B) dominant C) heterozygous D) recessive
- 8. When one allele masks the presence of another allele, the 1st allele is said to be
A) homozygous B) recessive C) dominant D) heterozygous
- 9. When the alleles for a trait that are present in an organism are not the same
A) heterozygous B) genetic C) heredity D) homozygous
- 10. In cattle, black coat color is dominant over white. If a heterozygous black-coated cow is mated with a white-coated bull, how many different phenotypes with respect to coat color could be expected in the offspring?
A) 2 B) 3 C) 4 D) 1
- 11. What is the the genetic makeup of a tall plant that is homozygous dominant.
T = tall t = short
A) Tt B) TT C) tt
- 12. A mother has the ability to roll her tongue and a genetic makeup of Tt and a father does not have the ability to roll his tongue and is pure recessive, so his genetic makeup is tt. Predict the percent probability of having a child with a who can roll his/her tongue.
A) 50% B) 25% C) 100% D) 75%
- 13. The different forms of a gene for any given trait
A) homozygous B) alleles C) heterozygous D) genetic make up
- 14. It is proper to put the ____ allele on the top of the Punnett Square
A) maternal B) paternal
- 15. For an offspring to _____ a recessive trait, both parents must have at least one ______ allele in their genotype
A) express, recessive B) control, recessive C) dominate, dominant
- 16. In this image, what are the genotypes of the male and of the female parents
A) bb, Bb B) Bb, bb C) bb, bb D) Bb, Bb
- 17. If A stands for astigmatism and a stands for normal vision, what are the phenotype ratios shown in this Punnett Square
A) homozygous B) 3 astigmatism : 1 normal vision C) 1:2:1 , AA: Aa: aa D) heterozygous
- 18. In this image, the genotype of the black parent is ______ and the genotype of the blue parent is
A) homozygous recessive, heterozygous B) heterozygous, homozygous recessive C) heterozygous, heterozygous D) homozygous dominant, homozygous recessive
- 19. In this image, the genotypes of the 4 offspring are
A) FF, Ff, ff B) all are ff C) FF and ff D) all are Ff
- 20. The name of the person who pioneered genetics in the 19th century
A) Charles Darwin B) Gregor Mendel C) Isaac Newton D) Reginald Punnett
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