Curliness of hair follows a codiminant inheritance pattern. Curly hair = C and straight hair = S. A curly hair person mates with a straight haired person. What is the probability of having an offspring with wavy hair?
A)0/4 or 0%
B)1/4 or 25%
C)2/4 or 50%
D)3/4 or 75%
E)4/4 or 100%
I would do c
To determine the probability of having an offspring with wavy hair, we need to consider the possible combinations of alleles that could be inherited from the parents.
The curly hair person can have genotype CC (homozygous curly) or Cs (heterozygous curly).
The straight-haired person can only have genotype SS (homozygous straight).
When they mate, the possible combinations of alleles in their offspring are:
Possible combinations from curly hair person (CC or Cs) and straight-haired person (SS):
- CC x SS -> All offspring will have curly hair (genotype Cs)
Possible combinations from curly hair person (CC or Cs) and straight-haired person (SS):
- Cs x SS -> Half of the offspring will have curly hair (genotype Cs) and half will have straight hair (genotype Ss)
Therefore, the probability of having an offspring with wavy hair (genotype Ss) is 1/4 or 25%.
The correct answer is B) 1/4 or 25%.