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- 1. Multiple Choice
On a Punnett square, the letters in the different positions represents the _______________ of each parent.
DNA
chromosome
Allele
Trait
- 2. Multiple Choice
Examine the Punnett square below.
Which of the following choices gives the alleles of the parents shown here?
BB and BB
BB and Bb
Bb and Bb
Bb and bb
- 3. Multiple Choice
Carrie is studying the genes of two fruit flies in her lab. She knows what alleles they have. She wants to know the potential combinations of alleles their offspring could inherit. Which of these choices would help Carrie identify the potential combinations?
an allele
a carrier
a pedigree
a Punnett square
- 4. Multiple Choice
Look at the diagram below.
Which of these choices best describes what the shaded box represents?
one possible combination of alleles in all offspring
the only possible combination of alleles in an offspring
the only possible combination of alleles in the female parent
one possible combination of alleles in the male, but not the female parent
- 5. Multiple Choice
Look at the diagram shown below.
Which of these choices gives the correct ratio for the offspring predicted by the diagram?
2 BB : 1 Bb
1 BB : 1 BB
1 BB : 1 Bb
1 BB : 2 Bb
- 6. Multiple Choice
Look at the diagram below.
Which of these choices should be placed in the box with the question mark?
AA
Aa
aa
Ab
- 7. Multiple Choice
Anya and Greg are working in their research laboratory. Anya tells Greg that one of the mice has a 50% probability of having the alleles DD and a 50% probability of having the alleles Dd. What does Anya mean by this?
There are two chances in 50 that the mouse has the alleles DD or Dd.
The chance the mouse has the alleles DD is equal to the chance that it has Dd.
The mouse is twice as likely to have the alleles DD than to have the alleles Dd.
There are two more possible outcomes besides the mouse having DD or Dd alleles.
- 8. Multiple Choice
Look at the diagram below.
Which of these statements is correct according to the diagram?
Each offspring has a 25% probability of inheriting the alleles PP
Each offspring has a 25% probability of inheriting the alleles Pp
Each offspring has an equal probability of inheriting the alleles PP or Pp
Each offspring is more likely to inherit pp than any other combination of alleles
- 9. Multiple Choice
Look at the diagram below.
What is the correct ratio of offspring predicted by the diagram?
PP to pp is predicted to be 2:1
Pp to pp is predicted to be 2:1
PP to Pp is predicted to be 1:1
Pp to PP is predicted to be 1:2
- 10. Multiple Choice
Look at the diagram shown below.
Which of these choices is true about individual 4 in generation II?
male and the father of individual 3 in generation III
male and the son of individuals 1 and 2 in generation I
female and the mother of individual 3 in generation III
female and the daughter of individuals 1 and 2 in generation I
- 11. Multiple Choice
Which of these choices describes the purpose of a Punnett square?
to diagram family relationships that include several generations
to explain why some genes are recessive and others are dominant
to calculate the specific genes an offspring will inherit from its parents
to illustrate how the alleles of parents may be passed on to their offspring
- 12. Multiple Choice
Which of these choices best describes a pedigree?
a way to calculate exactly which genes an offspring will inherit
a hypothesis that explains
why genes are recessive or dominant
a diagram of family
relationships that includes several generations
an illustration of how
parents may pass on alleles to their offspring
- 13. Multiple Choice
Pablo and Sam are working in their research laboratory. Pablo tells Sam that one of the mice has a 50% probability of having the alleles RR and a 50% probability of having the alleles Rr. What does Pablo mean by this?
The chance the mouse has the alleles RR is equal to the chance that it has Rr
The mouse is twice as likely to have the alleles RR than to have the alleles Rr
There are two chances in 50 that the mouse has the alleles RR or Rr
There are two more possible
outcomes besides the mouse having RR or Rr alleles.
- 14. Multiple Choice
Jessie is studying the genes of two fruit flies in his lab. He knows what alleles they have. He wants to know the potential combinations of alleles their offspring could inherit. Which of these choices would help Jessie identify the potential combinations?
a Punnett square
a pedigree
an allele
a gene
- 15. Fill in the Blank
A pedigree is a diagram of family relationships that includes several generations. True or False?
- Answer choicesTagsAnswer choicesTags