Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.
DNA
protein
RNA
glucose nucleic acid (GNA)
2. Multiple Choice
30 seconds
1 pt
How many alleles (letters) do each person carry for a trait?
1
2
3
4
3. Multiple Choice
30 seconds
1 pt
How many alleles (letters) does a child get from each parent for each trait?
1
2
3
4
4. Multiple Choice
30 seconds
1 pt
Dominant alleles are represented by a:
Male gene
lowercase letter
recessive trait
capital letter
5. Multiple Choice
30 seconds
1 pt
Aa, DD, bB, yy are all examples of
genotypes
phenotypes
6. Multiple Choice
30 seconds
1 pt
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
recessive
dominant
lower case letter
both
7. Multiple Choice
30 seconds
1 pt
What you see, or the physical appearance.
Genotype
Phenotype
Homozygous
Heterozygous
8. Multiple Choice
30 seconds
1 pt
T - tall and t = short In the punnett square below, what belongs in the missing square
tt
Tt
Bb
TT
9. Multiple Choice
30 seconds
1 pt
B = 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 genotype
they have different genotypes and phenotypes
they have same phenotype but different genotypes
they have same genotype but different phenotypes
10. Multiple Choice
30 seconds
1 pt
AA and Aa always show up as
dominant
recessive
11. Multiple Choice
30 seconds
1 pt
aa always shows up as
dominant
recessive
12. Multiple Choice
30 seconds
1 pt
Aa is
homozygous
heterozygous
13. Multiple Choice
30 seconds
1 pt
Which of the following is a phenotype?
Aa
red hair
heterozygous
DNA
14. Multiple Choice
30 seconds
1 pt
What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness?
0 in 4
1 in 4
2 in 4
4 in 4
15. Multiple Choice
30 seconds
1 pt
Which of the following genotypes is homozygous dominant?
A
Aa
AA
aa
16. Multiple Choice
30 seconds
1 pt
Which of the following genotypes is heterozygous?
Bb
BB
bb
B
17. Multiple Choice
30 seconds
1 pt
Which of the following is homozygous dominant?
Yy
Y
yy
YY
18. Multiple Choice
30 seconds
1 pt
Which of the following is homozygous recessive?
Tt
tt
TT
T
19. Multiple Choice
1 minute
1 pt
In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?
rr
R
RR
RR or Rr
20. Multiple Choice
30 seconds
1 pt
Which of the characteristics is a lion least likely to pass on to its offspring?
fur color
length of tail
scars on leg
body size
21. Multiple Choice
45 seconds
1 pt
In a pedigree, what shape represents a male?
circle
square
triangle
diamond
22. Multiple Choice
1 minute
1 pt
What type of heredity is shown in the pedigree? (hint: check your notes - "modes of inheritance")
Sex-Linked Dominant
Sex-Linked Recessive
Autosomal Dominant
Autosomal Recessive
23. Multiple Choice
30 seconds
1 pt
What gender has an X and a Y chromosome?
male
female
transgender
all of the above
24. Multiple Choice
5 minutes
1 pt
W=white hair w= non-white hair If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?