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- 1. Multiple Choice
What genotype would go in box 2?
BB
Bb
bb
- 2. Multiple Choice
What is the probability of heterozygous offspring?
0%
100%
50%
25%
- 3. Multiple ChoiceWhat allele combination should go in the missing box?AAAaaanone of these
- 4. Multiple ChoiceG = green, g = yellow
The genotype for a yellow plant is...GGGgggall of the choices result in yellow - 5. Multiple ChoiceTwo brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?0 %25%50%75%
- 6. Multiple ChoiceWhat you see, or the physical appearance.GenotypePhenotypeHomozygousHeterozygous
- 7. Multiple Choice
What are the possible genotypes for this cross?
TT = 25% Tt= 50% tt=25%
all tall
TT= 75% tt = 25%
Tt = 100%
- 8. Multiple Choice
What genotype would go in box 1?
BB
Bb
bb
- 9. Multiple Choice
In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being purple?
25%
0%
100%
50%
- 10. Multiple Choice
Which of these Punnett squares represents a cross between a homozygous dominant parent and a heterozygous parent?
- 11. Multiple Choice
A dog with straight fur (Bb) is crossed with a dog with curly fur (bb). What is the probability the offspring will have straight fur?
0%
25%
50%
75%
100%
- 12. Multiple ChoiceAn offspring will receive how many alleles from each parent to determine a specific trait?onetwothreefive
- 13. Multiple ChoiceWhat is the phenotype of the heterozygous parent in the punnett square?greenyellowhybridpurebred
- 14. Multiple ChoiceB = brown eyes
b = blue eyes
What is true about these two brothers that have brown eyes?
One has genotype BB the other Bb.they have same phenotype and genotypethey have different genotypes and phenotypesthey have same phenotype but different genotypesthey have same genotype but different phenotypes - 15. Multiple ChoiceWhat are the possible genotypes for this cross?
(Click the picture to see it without the text)TT = 25% Tt= 50% tt=25%all tallTT= 75% tt = 25%Tt = 100% - 16. Multiple Choice
Who is considered the "father of genetics"?
Reginald Punnett
Gregor Mendel
James Watson
Charles Darwin
- 17. Multiple Choice
What are the phenotype percentages of the offspring?
(A-Brown fur color; a-white fur color)
50 % Brown fur and 50% White fur
25 % Brown fur and 75% White fur
75 % Brown fur and 25% White fur
0% Brown fur and 100% White fur
- 18. Multiple ChoiceWhat is the yellow seed genotype?aaAaAAAA or Aa
- 19. Multiple ChoiceWhich of the following alleles is homozygous (purebred) recessive?TtttTTt
- 20. Multiple ChoiceWhich of the following genotypes is homozygous dominant?AAaAAaa
- 21. Multiple Choice
Cody crosses a plant producing wrinkled peas with a plant producing smooth peas. Weeks later, he discovers that all the offspring plants have smooth peas. Cody drew the Punnett square above to show the genotypes of the offspring plants. What were the genotypes of the parent plants?
RR and rr
Rr and Rr
RR and Rr
Rr and rr
- 22. Multiple Choice
The genotype of the offspring would be considered _________________________________.
heterozygous
homozygous dominant
homozygous recessive
- 23. Multiple Choice
What percentage of peas will be green?
25%
50%
75%
100%
- 24. Multiple Choice
If one allele for a trait is dominant and the other allele is recessive, which trait will be visible? The dominant allele or the recessive allele?
Dominant will be visible because it is blocked by the recessive allele.
Dominant will be visible because it hides or blocks the recessive allele.
Recessive will be visible because it is blocked by the dominant allele.
Recessive will be visible because it hides or blocks the dominant allele.
- 25. Multiple ChoiceDominant or recessive?
ttDominantRecessive - 26. Multiple ChoiceDominant or recessive?
DdDominantrecessiveneitherhomozygous - 27. Multiple ChoiceEmily has brown hair. Which is most likely a true statement about Emily?Emily’s favorite color is brown.Emily has a parent with brown hair.Emily’s older brother has brown hair.
- 28. Multiple ChoiceWhat should students use to identify the percent chance of a trait being passed down from a parent to its offspring?a grapha flow charta data tablea Punnett square
- 29. Multiple ChoiceWhich statement best supports why many offspring look similar to their parents?Offspring inherit characteristics from one parent.Offspring inherit characteristics from both parents.Parents choose which characteristics to pass on to their offspring.Parents choose to change their appearance to match that of their offspring.
- 30. Multiple ChoiceWhen the allele combination is a dominate and a recessive trait together which trait will be seen?DominateRecessivenoneboth
- 31. Multiple ChoiceB = brown fur b = white fur
In the punnett square, what is the probability for white fur?0%25%50%75% - 32. Multiple Choice
Why do scientist use Punnett Squares?
A tool scientist use to to see alleles
A tool scientist use to see which alleles are dominant
A tool scientist use to determine possible genotypes for offspring
- 33. Multiple Choice
In a Punnett Square, 1 box is equal to 25%. How much are 3 boxes equal to?
25%
50%
75%
100%
- 34. Multiple Choice
Fill in the Yellow Box
AA
Aa
aa
- 35. Multiple Choice
Fill in the Yellow Box
Bb
BB
bb
- 36. Multiple Choice
The punnett square is used to tell the color of a frogs skin. "G" means green skin and "g" means brown skin. What is the chance the baby frogs will have brown skin?
0%
25%
50%
100%
- 37. Multiple ChoiceIn pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?Tall = T
Short = STall = T
Short = tTall = t
Short = TTall = TT
Short = tt - 38. Multiple ChoiceA heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks?0%25%50%75%
- 39. Multiple Choice
T - tall and t = short
In the punnett square below, what belongs in the missing square
tt
Tt
Bb
TT
- 40. Multiple Choice
B = brown eyes
b = blue eyes
One brother has genotype BB and the other brother has genotype Bb.
Which statement is true about these two brothers?
They have same phenotype and genotype
They have different phenotypes and genotypes
They have same phenotype, but different genotypes
They have different phenotypes, but the same genotype
- Answer choicesTagsAnswer choicesTags