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- 1. Multiple Choice
A roan cow shows co-dominance in fur color (red and white). What are the possible offspring if a roan cow (female) and a roan steer (male) mate together? (Hint: draw a Punnett Square!)
4/4 roan offspring
2/4 red offspring, 2/4 white offspring
2/4 red offspring, 2/4 roan offspring
1/4 red offspring, 2/4 roan offspring, 1/4 white offspring
- 2. Multiple Choice
A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink (RW) flowers? (Hint: draw a Punnett Square!)
0%
25%
50%
100%
- 3. Multiple ChoiceHow much of your DNA do you inherit from your mom?10%25%50%it varies
- 4. Multiple ChoiceIn which inheritance pattern are heterozygous individuals a blend of the dominant and recessive phenotypes?sex-linked inheritancecomplete dominancecodominanceincomplete dominance
- 5. Multiple Choice
I have 2 X chromosomes. What am I?
Male
Female
- 6. Multiple Choice
What type of inheritance do two alleles have if their traits blend together?
Incomplete Dominance
Codominance
Mendelian Inheritance
Homozygous Inheritance
- 7. Multiple Choice
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
Incomplete Dominance
Codominance
Independent assortment
Recessive inheritance
- 8. Multiple Choice
In some carnations, flower color exhibits codominance. When crosses, Red (R) and white (W) flowers make speckled flowers (RW) that show both colors.
Complete a cross between A speckled flower and a red flower. Find the phenotype ratio. (Hint: draw a Punnett Square!)
2 red: 2 speckled: 0 white
4 red: 0 speckled: 0 white
0 red: 4 speckled: 0 white
0 red: 2 speckled: 2 white
- 9. Multiple Choice
Which statement is NOT true regarding multiple alleles?
An organism can have more than two alleles for a single gene
An organism may inherit one of multiple possible alleles from one parent
There exists multiple (>2) alleles for a given trait throughout the population
- 10. Multiple Choice
If a cow contains two codominant alleles--one for white hide color and one for red hide color--what would the cow's hide probably look like?
white
red
orange
patches of white and patches of red
- 11. Multiple Choice
What effect are multiple alleles likely to have on a population?
Increase risk for genetic diseases
Decrease risk for genetic diseases
Increase phenotypic variation (diversity) among a population
Decrease phenotypic variation (diversity) among a population
- 12. Multiple Choice
Which statement explains why blood type is an example of multiple alleles?
More than two alleles for blood type exist.
A person can inherit as many as four alleles for blood type.
All people inherit alleles for blood type.
The alleles for blood type are usually dominant.
- 13. Multiple Choice
If a person has two alleles that are codominant for a particular trait, then this person would have a _____ genotype.
Heterozygous
Homozygous
Both heterozygous and homozygous
- 14. Multiple Choice
Which of the following is the best example of codominance?
A person with AB blood type
A cat with an allele for a long tail
A plant with an allele for small leaves and an allele for red flowers
A mouse with a dominant allele for fur color
- 15. Multiple Choice
A bird has alleles for feather color that are incompletely dominant This will most likely result in feathers that...
appear identical to both alleles simultaneously
appear as an intermediate phenotype between the two alleles
are controlled by the more dominant allele of the two
none of the above
- 16. Multiple ChoiceIn humans, males have set of chromosomeXXXYYXYY
- 17. Multiple Choice
The probability that a male inherited his Y chromosome from his mom is...
0/4 or 0%
1/4 or 25%
2/4 or 1/2 50%
3/4 or 75%
4/4 or 100%
- 18. Multiple ChoiceWhat is NOT a possible genotype for someone with type B blood?BBABBO
- 19. Multiple Choice
What are the blood types of the possible children that a woman (type O) and man (type AB) can have? (Hint: draw a Punnett Square!)
O and AB
O and A
O and B
A and B
- 20. Multiple Choice
What type of inheritance is determined by multiple genes located on different chromosomes and there can be a range of possible traits? Ex: Eye Color
Codominance
Incomplete dominance
Polygenic traits
- 21. Multiple ChoiceWhat pattern of inheritance is shown in this image?CodominanceIncomplete dominancePolygenic traits
- 22. Multiple Choice
An example of polygenic inheritance is...
Skin Color
Widow's Peak
Blood Types
- 23. Multiple Choice
Skin color, height and eye color are examples of:
Polygenic Traits
Codominance
Sex determination
Incomplete dominance
- 24. Multiple ChoiceType of Trait that is controlled by MANY genes at once. Many Genes will 'contribute' to one phenotype.Multiple Allele TraitPolygenic TraitMonogenic TraitCo-Dominant Trait
- 25. Multiple Choice
Which of the following statements best describes a genetic disorder?
An atypical condition that a person inherits through genes or chromosomes.
A diagram or family tree of genetic inheritance used by geneticists to map genetic traits.
A photograph of a person’s chromosomes arranged in pairs and can reveal whether a person has the correct number of chromosomes.
- 26. Multiple Choice
Genetic disorders may be caused by...
Mutations in the DNA bases of genes
Changes in the overall structure or number of chromosomes
Both of these answers
- 27. Multiple ChoiceHow many alleles (letters) do each person carry for a trait?1234
- 28. Multiple ChoiceHow many alleles (letters) does a child get from each parent for each trait?1234
- 29. Multiple ChoiceIn a pedigree, what shape represents a male?circlesquaretrianglediamond
- 30. Multiple Choice
What sex has an X and a Y chromosome?
male
female
- 31. Multiple Choice
In the second generation (II), how many people are carriers of the trait?
2
3
5
6
- 32. Multiple Choice
How many individuals are there in the 3rd generation (III)?
2
3
4
6
- 33. Multiple Choice
What does this shape and how it is fully filled in represent?
Not affected Female
Not affected Male
Affected Male
Affected Female
- 34. Multiple Choice
What does this shape and how it is unfilled represent?
Not Affected Male
Not Affected Female
Affected Male
Affected Female
- 35. Multiple Choice
G=normal, g=affected. Affected individuals are homozygous recessive. Give the genotype for person III-3 (the third person from the left, in the third/III generation).
GG
Gg
gg
- 36. Multiple Choice
G=normal, g=affected. Affected individuals are homozygous recessive. Give the genotype for person II-1 (the first person from the left, in the second/II generation).
GG
Gg
gg
- 37. Multiple Choice
Which individual in the first generation (I) is a carrier?
The male
The female
individual 1
None of the above
- 38. Multiple Choice
If this pedigree shows a homozygous recessive disorder, what MUST the genotype of individual II-3 be (the third person from the left, in the second/II generation)?
HH
Hh
hh
None of the above
- 39. Multiple Choice
Which of the following statements best describes a pedigree?
An atypical condition that a person inherits through genes or chromosomes.
A diagram or family tree of genetic inheritance used by geneticists to map genetic traits.
A photograph of a person’s chromosomes arranged in pairs and can reveal whether a person has the correct number of chromosomes.
- 40. Multiple Choice
Which of the following statements best describes a karyotype?
An atypical condition that a person inherits through genes or chromosomes.
A diagram or family tree of genetic inheritance used by geneticists to map genetic traits.
A photograph of a person’s chromosomes arranged in pairs and can reveal whether a person has the correct number of chromosomes.
- 41. Multiple Choice
What would indicate a typical human male?
XX
X
XY
XXY
- 42. Multiple Choice
A pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are called
chromatin
DNA
homologous chromosomes
sex chromosomes
- 43. Multiple Choice
What is the chromosomal condition of the individual whose karyotype is seen in the image?
Turner's Syndrome (XO)
Trisomy 21/Down Syndrome (3 chromosomes #21)
Trisomy 13 (3 chromosomes #13)
Trisomy 18/Edwards Syndrome (3 chromosomes #18)
- 44. Multiple ChoiceWhat is the gender of the individual whose karyotype is seen in the image?MaleFemale
- Answer choicesTagsAnswer choicesTags