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Long legs (L) in racing horses is dominant to short legs (l). Good muscle tone (G) is dominant to weak muscle tone (g). Determine the phenotypes of the F1 generation resulting from a cross between a heterozygous long legged, weak muscled horse and a heterozygous long legged, strong horse

Respuesta :

Oseni

Answer:

See the answer below

Explanation:

Long leg (L) is dominant over short leg (l) and Good muscles (G) is dominant over weak muscles (g).

Heterozygous long leg, weak muscle = Llgg

Heterozygous long leg, strong muscle = LlGg

       Llgg    x    LlGg

Offspring:

2 LLGg - Long leg, strong muscle

4 LlGg -  Long leg, strong muscle

2 LLgg - Long leg, weak muscle

4 Llgg - long leg, weak muscle

2 llGg - short leg, strong muscle

2 llgg - short leg, weak muscle

Ratio of offspring with long leg and strong muscle = 6/16 or 3/8

Ratio of offspring with long leg and weak muscle = 6/16 or 3/8

Ratio of offspring with short leg and strong muscle = 2/16 or 1/8

Ratio of offspring with short leg and weak muscle = 2/16 or 1/8

Ver imagen Oseni
Histrionicus

The F1 generation resulting from a cross between a heterozygous long-legged, weak muscled horse and a heterozygous long-legged, strong horse

  • 3/8- long leg and good muscle tone
  • 3/8- long leg and good muscle tone3/8- long leg and weak muscle tone
  • 3/8- long leg and good muscle tone3/8- long leg and weak muscle tone1/-8- shirt leg and good muscle tone
  • 3/8- long leg and good muscle tone3/8- long leg and weak muscle tone1/-8- shirt leg and good muscle tone1/8- short leg and weak muscle tone

Given:

  1. Long legs (L) in racing horses is dominant to short legs (l)
  2. Good muscle tone (G) is dominant to weak muscle tone (g)

Cross:

  1. a heterozygous long-legged, weak muscled horse - Llgg
  2. a heterozygous long-legged, strong horse - LlGg

Llgg X LlGg

Gametes:

Lg, lg and LG, LG, lG, lg

Punnett square:

attached as image

F1- phenotypes:

3/8- long leg and good muscle tone

3/8- long leg and weak muscle tone 1/-8- shirt leg and good muscle tone 1/8- short leg and weak muscle tone

Learn more about dominant trait:

brainly.com/question/2114747

Ver imagen Histrionicus

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