I believe the answer is A.
Answer:
The answer is 1/2.
Explanation:
Using a Mendelian cross, the two possibilities for an offspring to become heterozygous is when a parent is heterozygous recessive and the other is heterozygous dominant or vice versa.
If the case is 1/2 heterozygous dominant x 1/2 heterozygous recessive then the offspring will have 1/4 dominant and recessive genotype.
If the case is 1/2 heterozygous recessive x 1/2 heterozygous dominant then the offspring will have 1/4 recessive and dominant genotype.
So the probability totally is 1/2.
I hope this answer helps.
A) Vibrations
Sounds vibrate the eardrum
Genotype of my snowman:
vv WW TT ss ee Cc Ff JJ Bb LL HH Pp
Phenotype:
Very tall
Wide
3 snowballs
no scarf
no earmuffs
coal eyes
2 buttons
joyful
two branches
Long nose
Top hat
pipe