Vocabulary
Monohybrid Punnett Square Problems
Incomplete dominance
Dihybrid Punnett Squares Problems
Random
100
What is the term for physical traits?
phenotype
100
Purple flowers are dominant to white flowers. Using the allele "p", write the genotype for a white flower.
If P = purple flowers and p = white flowers, then white flowers has a genotype of pp.
100

A long tailed dog (L) and a short tailed (S) dog mate to produce all medium length tailed puppies. What is the genotype of the medium length tailed puppy?

LS or SL

100
Unattached earlobes (U) are dominant to attached earlobes and tongue rolling (T) is dominant to not being able to roll tongue. The wife is homozygous dominant for unattached earlobes and heterozygous for tongue rollling. The husband has attached earlobes and is homozygous dominant for tongue rolling. Write the parents genotypes?
If U = unattached earlobes and u = attached, and T = tongue rolling and t = no tongue rolling then the wife is UUTt and the husband is uuTT.
100
Tall stems are dominant to short stems. The offspring are all short stemmed. Using the allele "t", what are the genotypes of the parents? You can set the timer to 2 minutes!
If T = tall stem and t = short stem, then both parents are tt.
200
What is the term for the combination of alleles that parents pass to their offspring?
genotype
200
Tall stems are dominant to short stems. Using the allele "t", write the possible genotypes to represent tall stems
If you are using T for tall - TT or Tt
200
Long tailed dogs (L) and short tailed (S) dogs create medium length tailed puppies. What if two parents are heterozygous? What are the chances in percent that they will have a short tailed puppy? You can set the timer to 2 minutes!
25%
200
Tall stems (T) are dominant to short stems and round seeds (R) are dominant to wrinkled seeds. One parent is heterozygous for tall stems and has wrinkled seeds. What are the 4 gamete combinations for this parent
The parent's genotype is Ttrr. Use foil or a small punnett square to get the four gamete combinations which are: Tr, Tr, tr, and tr.
200
Long hair is dominant to short hair in cats. Two cats mate and ALWAYS produce long haired kittens. One parent has short hair. Using the allele "h", what is the genotype of the other parent? You can set the timer to 2 minutes!
H = long hair and h = short hair. If one parent has short hair (hh), then the other parent must be HH to always have kids that have long hair.
300
The term for having two identical alleles for a gene
homozygous
300
Round seeds are dominant to wrinkled seeds. If two heterozygous round seeded plants cross, what is the probability in percent that they would have wrinkled seeded offspring? You can set the timer to 2 minutes!
25%
300
Long tailed dogs (L) and short tailed (S) dogs create medium length tailed puppies. What are the possible genotypes for offspring who has a long tailed parent and a medium length tailed parent? You can set the timer to 2 minutes!
LL and LS.
300
In rabbits, grey fur (G) is dominant to white fur (g) and black eyes (B) are dominant to red eyes (b). One parent is GgBb and the other parent is ggBb. What is the probability in fractions that they will produce offspring that have grey fur and black eyes? You can set the timer to 5 minutes!
6/16
300
Long tailed dogs (L) and short tailed (S) dogs create medium length tailed puppies. What are the parents' genotypes if the offspring has a 50% chance of being short tailed or 50% chance of being medium tailed? You can set the timer to 2 minutes!
One parent is SS and the other parent is LS.
400
Bb and Mm are examples of what type of genotype?
heterozygous
400
Having dimples is dominant to not having dimples. Create a punnet square of a parent that is homozygous dominant for dimples and a parent that is heterozygous for dimples. What is the probability in percent that they will have offspring that don't have dimples? You can set the timer to 2 minutes!
0%
400
Long tailed dogs (L) and short tailed (S) dogs create medium length tailed puppies. What must both parents' genotypes be in order to offspring with a genotype of 100% LS? You can set the timer to 2 minutes!
One parent is SS and the other parent is LL.
400
Having a widow's peak is dominant to a straight hairline and having dimples is dominant to not having dimples. In fractions, what are the chances of the offspring having a straight hairline and no dimples if the parents are both heterozygous for widow's peak and dimples. You can set the timer to 5 minutes!
1/16.
400
In tomatoes, red fruit (R) is dominant to yellow fruit. Two parents have red fruit. What are their genotypes if the offspring has a 25% chance of being RR, 50% chance of being Rr, and 25% chance of being rr? You can set the timer to 2 minutes.
Both parents must be Rr
500
What is the term for a version of a trait that is represented by a letter?
allele
500
Yellow seeds (Y) are dominant to green seeds. Two yellow seeded plants cross to have green seeded offspring. What are the parents' genotypes?
If Y = yellow seeds and y = green seeds, then both parents will be heterozygous (Yy and Yy)
500
A long tailed dog and a short tailed dog create medium length tailed puppies. Give one reason why this is an example of incomplete dominance.
Either answer is acceptable - 1) There is a 3rd phenotype. 2) The 3rd phenotype is a blend/mix of the parents' phenotypes
500
In tomatoes red fruit (R) is dominant to yellow fruit (r) and tall vines (T) are dominant to short vines (t). Both parents are heterozygous for red fruit and tall vines. What is the probability in fractions that the offspring will be RrTT? You can set the timer to 5 minutes!
2/16
500
Tongue rolling is dominant to not being able to tongue roll and having freckles is dominant to not having freckles. In fractions, how many offspring can tongue roll but not have freckles if the one parent is heterozygous for tongue roll but has no freckles and the other parent can't tongue roll and is heterozygous for freckles? You can set the timer to 5 minutes!
4/16
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