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2. The following chart shows the crossover frequencies for some genes on an autosome of organism Z. Construct a chromosome map. Genes | Crossover Frequency --- | --- P & Q | 5% P & R | 8% P & S | 12% Q & R | 13% Q & S | 17% 3. For a series of experiments, a linkage group composed of genes W, X, Y and Z was found to show the following gene combinations. (All recombinations are expressed per 100 fertilized eggs). Construct a gene map. Genes | W | X | Y | Z --- | --- | --- | --- | --- W | - | 5 | 7 | 8 X | 5 | - | 2 | 3 Y | 7 | 2 | - | 1 Z | 8 | 3 | 1 | - 4. For a series of breeding experiments, a linkage group composed of genes A, B, C, and D was found to show the following gene combinations. (All recombinations are expressed per 100 fertilized eggs). Construct a chromosome map. Genes | A | B | C | D --- | --- | --- | --- | --- A | - | 12 | 15 | 4 B | 12 | - | 3 | 8 C | 15 | 3 | - | 11 D | 4 | 8 | 11 | -

          2. The following chart shows the crossover frequencies for some genes on an autosome of organism Z. Construct a chromosome map.

Genes | Crossover Frequency
--- | ---
P & Q | 5%
P & R | 8%
P & S | 12%
Q & R | 13%
Q & S | 17%

3. For a series of experiments, a linkage group composed of genes W, X, Y and Z was found to show the following gene combinations. (All recombinations are expressed per 100 fertilized eggs). Construct a gene map.

Genes | W | X | Y | Z
--- | --- | --- | --- | ---
W | - | 5 | 7 | 8
X | 5 | - | 2 | 3
Y | 7 | 2 | - | 1
Z | 8 | 3 | 1 | -

4. For a series of breeding experiments, a linkage group composed of genes A, B, C, and D was found to show the following gene combinations. (All recombinations are expressed per 100 fertilized eggs). Construct a chromosome map.

Genes | A | B | C | D
--- | --- | --- | --- | ---
A | - | 12 | 15 | 4
B | 12 | - | 3 | 8
C | 15 | 3 | - | 11
D | 4 | 8 | 11 | -

2. The following chart shows the crossover frequencies for some genes on an autosome of organism Z. Construct a chromosome map.

Genes | Crossover Frequency
— | —
P Q | 5%
P R | 8%
P S | 12%
Q R | 13%
Q S | 17%

3. For a series of experiments, a linkage group composed of genes W, X, Y and Z was found to show the following gene combinations. (All recombinations are expressed per 100 fertilized eggs). Construct a gene map.

Genes | W | X | Y | Z
— | — | — | — | —
W | - | 5 | 7 | 8
X | 5 | - | 2 | 3
Y | 7 | 2 | - | 1
Z | 8 | 3 | 1 | -

4. For a series of breeding experiments, a linkage group composed of genes A, B, C, and D was found to show the following gene combinations. (All recombinations are expressed per 100 fertilized eggs). Construct a chromosome map.

Genes | A | B | C | D
— | — | — | — | —
A | - | 12 | 15 | 4
B | 12 | - | 3 | 8
C | 15 | 3 | - | 11
D | 4 | 8 | 11 | -

Added by Erika K.

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