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- 1. Multiple Choice
Which of the following is the correct definition for a genotype?
The physical expression of a gene. (Characteristics)
A strand of DNA made up of multiple mutations.
The expression of one of your parents traits.
The set of genes in our DNA which is responsible for a particular trait.
- 2. Multiple ChoiceWhich of the following genotypes is homozygous dominant?AAaAAaa
- 3. Multiple ChoiceWhich of the following genotypes is heterozygous?BbBBbbB
- 4. Multiple ChoiceIn a heterozygous genotype, the ___________ allele takes over in the phenotype.recessivedominantlower case letterboth
- 5. Multiple Choice
Look at the picture. The probability that a child will inherit the recessive trait is25%50%75%100% - 6. Multiple ChoiceT - tall and t = short
In the punnett square below, what belongs in the missing squarettTtBbTT - 7. Multiple Choice
An example of a heterozygous gene is
FF
ff
Ff
- 8. Multiple Choice
An example of a homozygous recessive gene is
Dd
DD
dd
DAB
- 9. Multiple Choice
An example of a homozygous dominant gene is
Dd
DD
dd
DAB
- 10. Multiple ChoiceDominant alleles are represented by a:Male genelowercase letterrecessive traitcapital letter
- 11. Multiple ChoiceAa, DD, bB, yy are all examples ofgenotypesphenotypes
- 12. Multiple ChoiceAlternative forms of a gene are calledAllelesHomozygousDNAGenetics
- 13. Multiple ChoiceHair colour is an example ofgenotypephenotype
- 14. Multiple ChoiceIf a trait is recessive, it needs to be inherited from ___ parents to be 'expressed'.oneboth
- 15. Multiple ChoiceMark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's genotype?BBbbBbbB
- 16. Multiple Choice
Punnett Square
a genetic factor that blocks another genetic factor
a genetic factor that is blocked by the presence of a dominant factor
physical appearance of a trait
a model used to predict possible genotypes and phenotypes of offspring
- 17. Multiple Choice
Physical appearance of a trait
gene
allele
genotype
phenotype
- 18. Multiple Choice
Which of the following genotypes is homozygous recessive?
Tt
tt
TT
tT
- Answer choicesTagsAnswer choicesTags