ou are a zoologist working with Giraffes. Their main traits are: Grey tongues (G+), Rudimentary Horns (R+), Long necks (L+) . You perform the following testcross with an individual with recessive versions of all 3 of the traits. P: G+ R+ L+/G+ R+ L+   x G R L /G R L F1(all identical): G+ R+ L+/G R L What this the distance between G and R? What is the distance between G and L? What is the distance between R and L? What is the correct order of the genes on the chromosome? (5 points) (Hints: You should draw it first. The overall order will not change whether reading from the left or the right side of the chromosome).  a. G--R--L b. L--G--R c. G--L--R

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You are a zoologist working with Giraffes. Their main traits are: Grey tongues (G+), Rudimentary Horns (R+), Long necks (L+) . You perform the following testcross with an individual with recessive versions of all 3 of the traits.

P: GR+ L+/GR+ L+   x G R L /G R L

F1(all identical): GR+ L+/G R L

What this the distance between G and R?

What is the distance between G and L?

What is the distance between R and L?

What is the correct order of the genes on the chromosome? (5 points) (Hints: You should draw it first. The overall order will not change whether reading from the left or the right side of the chromosome). 

a.

G--R--L

b.
L--G--R
c.

G--L--R

**Title: Genetic Study on Giraffe Traits**

**Introduction:**

As a zoologist researching giraffes, you are studying their distinct characteristics:

- Grey tongues (G⁺)
- Rudimentary horns (R⁺)
- Long necks (L⁺)

**Objective:**

The goal is to analyze the inheritance of these traits through a test cross with an individual demonstrating recessive versions of all traits.

**Parental Generation (P):**

- G⁺ R⁺ L⁺/G⁺ R⁺ L⁺ × G R L

**First Filial Generation (F1):**

- All offspring are: G⁺ R⁺ L⁺/G R L

**Test Cross Progeny Results:**

A test cross was conducted, and the offspring were categorized based on trait combinations, as follows:

| Test Cross Progeny | Quantity |
|--------------------|----------|
| G R L              | 2021     |
| G⁺ R⁺ L⁺           | 1987     |
| G⁺ R L⁺            | 600      |
| G⁺ R L             | 444      |
| G R L⁺             | 125      |
| G⁺ R⁺ L            | 122      |
| G⁺ R L             | 7        |
| G R⁺ L⁺            | 1        |

**Total Progeny:** 5307

**Note:** Do not round your answers. Maintain one decimal point accuracy (e.g., 2.3, not 2.39).

---

This table provides a detailed breakdown of the different genetic combinations observed in the offspring, reflecting the inheritance patterns of these giraffe traits.
Transcribed Image Text:**Title: Genetic Study on Giraffe Traits** **Introduction:** As a zoologist researching giraffes, you are studying their distinct characteristics: - Grey tongues (G⁺) - Rudimentary horns (R⁺) - Long necks (L⁺) **Objective:** The goal is to analyze the inheritance of these traits through a test cross with an individual demonstrating recessive versions of all traits. **Parental Generation (P):** - G⁺ R⁺ L⁺/G⁺ R⁺ L⁺ × G R L **First Filial Generation (F1):** - All offspring are: G⁺ R⁺ L⁺/G R L **Test Cross Progeny Results:** A test cross was conducted, and the offspring were categorized based on trait combinations, as follows: | Test Cross Progeny | Quantity | |--------------------|----------| | G R L | 2021 | | G⁺ R⁺ L⁺ | 1987 | | G⁺ R L⁺ | 600 | | G⁺ R L | 444 | | G R L⁺ | 125 | | G⁺ R⁺ L | 122 | | G⁺ R L | 7 | | G R⁺ L⁺ | 1 | **Total Progeny:** 5307 **Note:** Do not round your answers. Maintain one decimal point accuracy (e.g., 2.3, not 2.39). --- This table provides a detailed breakdown of the different genetic combinations observed in the offspring, reflecting the inheritance patterns of these giraffe traits.
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