For the people from Munchkinland, being tall is a dominant trait (A) over being
ID: 92579 • Letter: F
Question
For the people from Munchkinland, being tall is a dominant trait (A) over being short (a). Also, having a high squeaky voice is dominant (B) over having a low nasal voice (b). If the Mayor of Munchkin City in the Land of Oz is tall and has a high squeaky voice (heterozygous for both traits) has wee tykes with a Munchkin lady who is also tall (heterozygous) but has a low nasal voice, what are the chances that a child of this crossing would have the following charcateristics? Please include a punnet square.
A) Genotypes AABb
B) Genotype Aabb
C) Tall and low nasal voice
Explanation / Answer
Answer:
AaBb (Mayor of Munchkin) x Aabb(Munchkin lady)
Ab
ab
AB
AABb (Tall, Squeaky)
AaBb(Tall, Squeaky)
Ab
AAbb(Tall, nasal)
Aabb(Tall, nasal)
aB
AaBb(Tall, Squeaky)
aaBb(short, squeaky)
ab
Aabb(Tall, nasal)
aabb(short, nasal)
A) Genotypes AABb: 1/8
B) Genotype Aabb:1/4
C) Tall and low nasal voice =3/8
Ab
ab
AB
AABb (Tall, Squeaky)
AaBb(Tall, Squeaky)
Ab
AAbb(Tall, nasal)
Aabb(Tall, nasal)
aB
AaBb(Tall, Squeaky)
aaBb(short, squeaky)
ab
Aabb(Tall, nasal)
aabb(short, nasal)