Phenotype Probabilities of Offspring from Sam and Carole's Mating

Mendelian Inheritance of Traits

Sam, a MendAlien with black eyes and green skin, has a parent with orange eyes and white skin. Carole is a MendAlien with orange eyes and white skin. If Sam and Carole, both with Mendelian traits, were to mate, their offspring would inherit their traits from both parents in a predictable pattern according to Mendelian inheritance.

Eye Color

For the trait of eye color, Sam has a dominant allele (B) for brown eyes and Carole has a recessive allele (b) for blue eyes. If Sam and Carole have a child, the child will receive one allele from each parent, either BB (dominant brown) or Bb (recessive blue). The probability of the child having brown eyes (BB) is 1 (100%) and the probability of the child having blue eyes (Bb) is 0 (0%).

Skin Color

For the trait of skin color, Sam has a recessive allele (r) for red skin and Carole has a dominant allele (R) for white skin. If Sam and Carole have a child, the child will receive one allele from each parent, either Rr (dominant white) or rr (recessive red). The probability of the child having white skin (Rr) is 1 (100%) and the probability of the child having red skin (rr) is 0 (0%).

Therefore, the phenotype probabilities of their offspring would be:

  • Eye color: BB (brown) with 1 (100%) probability and Bb (blue) with 0 (0%) probability.
  • Skin color: Rr (white) with 1 (100%) probability and rr (red) with 0 (0%) probability.

It's important to note that these are the probabilities for the offspring based on the genes inherited from Sam and Carole, assuming that the offspring inherits one allele from each parent. There is always some inherent variation and unpredictability in Mendelian inheritance due to other factors such as epistasis, gene interactions, and non-Mendelian inheritance mechanisms.

Question:

If Sam and Carole were to mate, what are the phenotype probabilities of their offspring?

Answer:

The phenotype probabilities of their offspring would be brown eyes with 100% probability and white skin with 100% probability.

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