A round watermelon is crossed with a long watermelon and all the offspring are oval. If two oval watermelons are crossed, what is the percent of watermelons that will be round?
0%
25%
50%
75%
2. Multiple Choice
30 seconds
1 pt
A round watermelon is crossed with a long watermelon and all the offspring are oval. This is an example of...
codominance.
incomplete dominance.
sex-linkage.
multiple alleles.
3. Multiple Choice
2 minutes
1 pt
A child is born with blood type O. All of the following could be the blood type of the parents EXCEPT...
A and B
A and A
O and O
AB and O
4. Multiple Choice
30 seconds
1 pt
The expression of both alleles for a trait in a heterozygous individual is called...
sex-linkage.
epistasis.
codominance.
incomplete dominance.
5. Multiple Choice
2 minutes
1 pt
A couple has 6 children, all girls. If the mother gives birth to a 7th child, what is the probability that the seventh child will be a girl?
7 out of 7
6 out of 7
1 out of 2
1 out of 7
6. Multiple Choice
2 minutes
1 pt
A male who has a sex-linked allele will pass it on to...
all his daughters.
all his sons.
1/2 his daughters.
1/2 his sons.
7. Multiple Choice
30 seconds
1 pt
The passing of DNA from parents to offspring is called...
generation.
heredity.
inheritance.
traits.
8. Multiple Choice
30 seconds
1 pt
What is a gene?
an entire chromosome that codes for a trait
a piece of clothing
a piece of a DNA on chromosome that codes for a trait
chemical messengers in your brain that code for a trait
9. Multiple Choice
30 seconds
1 pt
One trait that is ALWAYS present and causes the other traits to disappear is a...
recessive trait.
aggressive trait.
George trait.
dominant trait.
10. Multiple Choice
30 seconds
1 pt
A __________ is used to predict the possible genotypes from certain parents.
Mendel Grid
Genetic Tic-Tac-Toe
Punnett Square
Pedigree Foursquare
11. Multiple Choice
30 seconds
1 pt
__________ is the mathematical chance that something will happen.
Division
Selective breeding
Ratio
Probability
12. Multiple Choice
30 seconds
1 pt
Are recessive traits shown with capital or lowercase letters?
Capital
Lowercase
Both
Neither
13. Multiple Choice
30 seconds
1 pt
Human body cells have ____ pairs of chromosomes.
46
43
23
26
14. Multiple Choice
30 seconds
1 pt
The different forms of genes are known as...
traits.
environment.
probability.
alleles.
15. Multiple Choice
30 seconds
1 pt
How would you describe this genotype? BB
Homozygous dominant
Heterozygous
Heterozygous dominant
Homozygous recessive
16. Multiple Choice
30 seconds
1 pt
How would you describe this genotype? tt
Homozygous dominant
Homozygous recessive
Heterozygous
Heterozygous recessive
17. Multiple Choice
30 seconds
1 pt
How would you describe this genotype? Pp
Homozygous dominant
Heterozygous dominant
Heterozygous
Heterozygous recessive
18. Multiple Choice
30 seconds
1 pt
Which of the following genotypes is homozygous dominant?
Hh
pp
HH
aa
19. Multiple Choice
30 seconds
1 pt
Which of the following genotypes is heterozygous?
Hh
gg
HH
GG
20. Multiple Choice
2 minutes
1 pt
In dragons, scale color shows incomplete dominance. If a red (RR) dragon mates with a white (rr) dragon, what percentage of their offspring could be pink?
100%
75%
50%
0%
21. Multiple Choice
2 minutes
1 pt
In fruit flies, eye color is a sex-linked trait. If a male with red (R) eyes mates with a white-eyed (r) female, what percentage of their children will be white-eyed males?
100%
50%
25%
0%
22. Multiple Choice
2 minutes
1 pt
Colorblindess is a sex-linked, recessive trait. If Jade is colorblind, what MUST be true about her parents?
Her mother is colorblind.
Her father is colorblind.
Her father has normal vision.
Her mother has normal vision.
23. Multiple Choice
30 seconds
1 pt
All of the following can be seen in a karyotype except...
the genetic code.
autosomes.
sex chromosomes.
homologous pairs.
24. Multiple Choice
30 seconds
1 pt
Meiosis
produces four sex cells, sperm or egg that are used to pass a parent’s traits to offspring
cell reproduction- when one body cell becomes two
the different forms of a characteristic
the factor that controls a trait you exhibit
25. Multiple Choice
30 seconds
1 pt
Mitosis
cell reproduction- when one body cell becomes two
produces four sex cells, sperm or egg that are used to pass a parent’s traits to offspring
contains your genes; found in the nucleus
the factor that controls a trait you exhibit; found on chromosomes
26. Multiple Choice
30 seconds
1 pt
Phenotype
the physical appearance of a trait (Ex: dimples, no dimples)
combination of alleles (letters):DD,Dd,dd
two alleles/letters for one trait that are the same (Ex: DD or dd)
the letters that represent the different forms of a gene
27. Multiple Choice
30 seconds
1 pt
Genotype
combination of alleles (letters):DD,Dd,dd
the physical appearance of a trait (Ex: dimples, no dimples)
two alleles/letters for one trait that are the same (Ex: DD or dd)
two alleles/letters for one trait that are different (Ex: Dd)
28. Multiple Choice
30 seconds
1 pt
Alleles
the letters that represent the different forms of a gene
the different forms of a characteristic
the passing of physical characteristics from parents to offspring
contains your genes; found in the nucleus
29. Multiple Choice
30 seconds
1 pt
A gene located on the sex chromosome
autosome
sex-linked
genetic disorder
sex gene
30. Multiple Choice
1 minute
1 pt
This is a chart used to analyze the pattern of inheritance that shows the relationships in a family.
pedigree
genotype
genome
karyotype
31. Multiple Choice
30 seconds
1 pt
The total chromosome number of a human male is often written as
46, XX
46, XY
46, YY
23, XY
32. Multiple Choice
1 minute
1 pt
The genotype of the affected son and daughter at the bottom of this pedigree...
homozygous dominant
homozygous recessive
heterozygous
Can't tell
33. Multiple Choice
20 seconds
1 pt
In the second generation-how many people are carriers of the trait?
2
3
5
6
34. Multiple Choice
20 seconds
1 pt
Examine the pedigree. The allele for the presence of a widow’s peak is dominant. Therefore, we can tell from the chart that in the couple labeled 2:
the male is heterozygous and the female is homozygous.
the male is homozygous and the female is heterozygous.
the male is homozygous and the female is homozygous.
the male is heterozygous and the female is heterozygous.
35. Multiple Choice
1 minute
1 pt
Not affected Female
Not affected Male
Affected Male
Affected Female
36. Multiple Choice
20 seconds
1 pt
Not Affected Male
Not Affected Female
Affected Male
Affected Female
37. Multiple Choice
20 seconds
1 pt
Not affected male
Not affected female
Affected male
Affected female
38. Multiple Choice
20 seconds
1 pt
Not affected male
Not affected female
Affected male
Affected female
39. Multiple Choice
1.5 minutes
1 pt
What does a vertical line coming down from a square and circle that are connected by horizontal line indicate?
They are cousins
The children
Aunts and Uncles
40. Multiple Choice
1.5 minutes
1 pt
What do we use pedigrees for?
To look at families
To make determinations about the offspring
To track traits in families
Nothing
41. Multiple Choice
30 seconds
1 pt
What is the mode of inheritance shown here?
Autosomal Recessive
Autosomal Dominant
Sex Linked
42. Multiple Choice
30 seconds
1 pt
Color Blindness is a sex linked disease. Therefore, it HAS to affect which pair of chromosomes?
21
23
24
1-22
43. Multiple Choice
30 seconds
1 pt
Freckles (F) are dominant over nonfreckles. What is the phenotype of individual #3
Ff
ff
freckles
nonfreckles
44. Multiple Choice
1 minute
1 pt
The genotype of the affected son and daughter at the bottom of this pedigree...
homozygous dominant
homozygous recessive
heterozygous
Can't tell
45. Multiple Choice
1 minute
1 pt
What is the relationship between person I 1 and III 2?
Father and Son
Father and Daughter
Grandfather and Granddaughter
Uncle and Niece
46. Multiple Choice
30 seconds
1 pt
Which individual in the first generation is a carrier?