Hermey has a bumble with white hair, but he doesn't know its genotype (either WW or Ww). Devise a test cross that would allow Hermey to determine its genotype. Be sure to indicate which genotype you would cross it with and the predicted results if it was WW or Ww. Make sure to draw Punnett squares.

To determine the genotype of Hermey's white-haired bumble, a test cross can be performed. If the white-haired bumble is homozygous (WW), all the offspring will have white hair. If it is heterozygous (Ww), half of the offspring will have white hair and half will have normal hair.

Explanation:

To determine the genotype of Hermey's bumble with white hair, he can perform a test cross. In this cross, Hermey would cross his bumble with a bumble that has the recessive genotype ww. If the white-haired bumble is homozygous (WW), all the offspring will have white hair. On the other hand, if the white-haired bumble is heterozygous (Ww), half of the offspring will have white hair and half will have normal hair.

Predicted Results:

If the genotype of the white-haired bumble is WW, all the offspring will have white hair (Ww).

If the genotype of the white-haired bumble is Ww, half of the offspring will have white hair (Ww) and half will have normal hair (ww).

To visualize this, here are the Punnett squares:

WW x ww:
Ww: all white-haired bumbles - genotype: Ww
ww: none - genotype: ww

Ww x ww:
Ww: half white-haired bumbles - genotype: Ww
ww: half - genotype: ww

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Asif086 Asif086 · Answer 2 · 2025-03-27T09:00:39-04:00

Final answer:

To determine the genotype of Hermey's bumble with white hair, he can perform a test cross with a bumble that has ww genotype. If the offspring have white hair, Hermey's bumble is WW, if half have white hair and half have colored hair, Hermey's bumble is Ww.

Explanation:

To determine the genotype of Hermey's bumble with white hair, he can perform a test cross. He should cross his bumble with a bumble that has the genotype ww.

If Hermey's bumble is WW, all the offspring will have white hair. If Hermey's bumble is Ww, half of the offspring will have white hair and half will have colored hair.

Predicted results for a test cross with a bumble that has WW genotype:

Offspring: 100% white hair (WW)

Predicted results for a test cross with a bumble that has Ww genotype:

Offspring: 50% white hair (Ww) and 50% colored hair (ww)

Here are the Punnett squares for both scenarios:

Test Cross with WW:

| W | W
---|---|---
w | Ww|Ww

Test Cross with Ww:

| W | w
---|---|---
w | Ww|ww

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