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
45 seconds
1 pt
How many alleles (letters) do each person carry for a trait?
1
2
3
4
3. Multiple Choice
45 seconds
1 pt
How many alleles (letters) does a child get from each parent for each trait?
1
2
3
4
4. Multiple Choice
45 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
45 seconds
1 pt
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
recessive
dominant
lower case letter
both
7. Multiple Choice
45 seconds
1 pt
What you see, or the physical appearance.
Genotype
Phenotype
Homozygous
Heterozygous
8. Multiple Choice
45 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
45 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
45 seconds
1 pt
AA and Aa always show up as
dominant
recessive
11. Multiple Choice
45 seconds
1 pt
aa always shows up as
dominant
recessive
12. Multiple Choice
45 seconds
1 pt
aa always shows up as
dominant
recessive
13. Multiple Choice
45 seconds
1 pt
Aa is
homozygous
heterozygous
14. Multiple Choice
45 seconds
1 pt
Which of the following is a phenotype?
Aa
red hair
heterozygous
DNA
15. Multiple Choice
45 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
16. Multiple Choice
45 seconds
1 pt
Which of the following genotypes is homozygous dominant?
A
Aa
AA
aa
17. Multiple Choice
45 seconds
1 pt
Which of the following genotypes is heterozygous?
Bb
BB
bb
B
18. Multiple Choice
45 seconds
1 pt
Which of the following is homozygous dominant?
Yy
Y
yy
YY
19. Multiple Choice
45 seconds
1 pt
Which of the following is homozygous recessive?
Tt
tt
TT
T
20. Multiple Choice
1.5 minutes
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
21. Multiple Choice
45 seconds
1 pt
Which of the characteristics is a lion least likely to pass on to its offspring?