Directions: Applications/Biology Virtual Lab Disc/Launch.
As you do the lab, answer the following questions. (1 point each, 25 points total)
Select: Genetics
Select: Experiments and Models of Heredity
1.
What did Mendel’s work provide and what tool will be used to investigate patterns of
inheritance?
2.
What were the characteristics of pea plants that Mendel studied?
3.
What is a character?
4.
What is a ratio?
5.
What did he do with the ratios to help see patterns in the data?
6.
What ratio did the F2 generation show for contrasting traits?
7.
What was the phenotype and genotype for the dominant color allele, and what was the
phenotype and genotype for the recessive color allele?
8.
What is monohybrid cross?
9.
a. What do the parents look like?
b. What alleles do the parents have?
c. What symbols can be used for the alleles?
d. What genotypes can be produced by the cross?
10.
a. What genotypes can be produced by the cross?
b. What alleles could be together in the zygotes/offspring?
c. What will the offspring look like? What flower colors will they have?
11.
a. If the F1 were allowed to self-pollinate, what were the F2 generation ratios?
b. What color is the flower of each potential parent of the F2 generation?
c. What alleles do the potential parents of the F2 generation have?
d. What alleles could be together in the zygote/offspring?
e. What will the offspring look like? What flower colors will they have?
12.
What is incomplete dominance?
13.
a. How many different phenotypes are possible?
b. What are the different phenotypes and their ratios?
14.
What are Drosophila?
15.
What two traits are independent of one another?
16.
Which traits are dominant in each case?
17.
What is a di-hybrid cross?
18.
a. How many different phenotypes are possible?
b. What are the different possible phenotypes?
19.
What are the four blood types and how many alleles determine these four blood types?
20.
a. Which allele did the child receive from his/her mother?
b. Which allele did the child receive from his/her father?
21.
In humans and other organisms, how many pairs of chromosomes determine gender?
22.
What is the sex of an individual receiving one X and one Y chromosome and what is the
sex of an individual receiving two X chromosomes?
23.
What is the predicted chance that any baby will be a boy and what is the predicted chance
that any baby will be girl?
24.
a. Where are sex-linked genes carried?
b. What are sex-linked genes dominant or recessive?
c. What is an example of a sex-linked trait?
25.
a. What is the chance that a girl could inherit this allele from her color-blind father?
b. What is the chance that the girl could be colorblind?
c. What would the girl be called?