1. Monday, April 7, 2014
SC.912.L.16.1

2. DO NOT DRAW THIS PUNNETT – Draw the one I put on the board
25%
50%
75%
100%

3. Tuesday, April 8, 2014
SC.912.L.16.1

4. If you had two guinea pigs of opposite sex, both homozygous, one black and one brown, but you didn't know which was the dominant characteristic, how could you be certain that the guinea pigs are truly homozygous?
A) The guinea pigs would be homozygous for black (or brown) coat color if each strain could be bred for many generations and only black (or brown) colored offspring were produced.
B) If the immediate parents of the black (or brown) guinea pigs were both of that color, it proves they are homozygous.
C) If a cross between the black and brown guinea pig produced four all black offspring, the black guinea pig would have to be homozygous for black coat color.
D) Any of the results would prove the black guinea pig was homozygous.
E) Only microscopic examination of the guinea pig's genes could absolutely confirm homozygosity.

5. Wednesday, April 9, 2014
SC.912.L.16.1

6. a) independent assortment b) hybridization c) segregation
The idea that for any particular trait, the pair of alleles of each parent separate and only one allele from each parent passes to an offspring is Mendel's principle of:
a) independent assortment
b) hybridization
c) segregation
d) dependent assortment C

7. Thursday, April 10, 2014
SC.912.L.16.1

8. E) unable to determine from the information given
If a human who is a tongue roller (T) and has unattached ear lobes (E) marries a person who cannot roll their tongue and has attached earlobes, could they produce an offspring that was also a non-tongue roller with attached earlobes? What would be the genotype of the first parent? the second parent?
A) yes; TtEe; ttee
B) yes; TtEE; ttEe
C) no; TTEE; ttee
D) yes: TTEe; ttee
E) unable to determine from the information given A

9. Scientists have introduced a color gene into some zebra fish to glow under fluorescent or black light. Three alleles were created: red (R), orange (O) and green (G). The fluorescent colors are dominant in the golden-colored wild type. A fish with a red phenotype is mated with a wild-type fish. What is the chance that their offspring are red? 0%
25%
50%
75% C

10. Sex – linked practice #1
In a cross between a white-eyed female fruit fly and red-eyed male, what percent of the female offspring will have white eyes? (White eyes are X-linked, recessive)
A. 100%
B. 25%
C. 50%
D. 75%
E. 0%

11. DI stations from Unit Assessment and mini assessment 16.17
Friday, April 11, 2014
SC.912.L.16.1
DI stations from Unit Assessment and mini assessment 16.17

12. What are the possible offspring of a cross between an individual with homozygous recessive short hair (s) and heterzygous long hair (S)

13. Comp Checks
Monday- How is a monohybrid cross different than a dihybrid cross?
Tuesday- Why can parents who are heterozygous for type A and Type B blood have children with any of the 4 human blood types? Use a punnett square
Wednesday- How do pedigrees for autosomal genes differ from pedigrees of sex-linked genes?

14. Comp Checks
Thursday- Is a person who is homozygous recessive for a recessive genetic disease a carrier? Explain.
Friday- Explain why disorders caused by dominant alleles on autosomes are less common than those caused by recessive alleles on autosomes.