1. For each genotype below, indicate whether it is: 2. For each of the ...
1. For each genotype below, indicate whether it is:
Heterozygous (He)
Homozygous Dominant (HD)
Name ___________________ Date ___________________ Period ___________________
Homozygous Recessive (HR)
AA _____ Bb _____ Cc _____ DD _____
Ee ____ ff ____ Gg ____ HH ____
Ii _____ Jj _____ kk _____ LL _____
Mm _____ nn _____ oo _____ Pp _____
2. For each of the genotypes (Pp) below determine what phenotypes (trait shown) would be possible.
Purple flowers are dominant to white flowers. PP __________________ Pp __________________ pp __________________
Brown eyes are dominant to blue eyes BB ________________ Bb ________________ bb ________________
Round seeds are dominant to wrinkled seeds. RR __________________ Rr __________________ rr __________________
Bobtails in cats are recessive. (Bobtail=short tail) TT _________________ Tt _________________ tt __________________
3. For each phenotype below, list the possible genotypes (dominant trait determines the letter)
Straight hair is dominant to curly hair. (Use S) Pointed heads are dominant to round heads.
____ straight
_____ pointed
____ straight
_____ pointed
____ curly Long Nose is dominant to short nose.
____ Long ____ Long ____ short
_____ round Round Eyes is dominant to oval shaped eyes. (Fill in the correct phenotypes)
____
____
____
4. Set up the Punnett Squares for each of the crosses listed below.
Round seeds are dominant to wrinkled seeds.
MAKE A KEY R = __________________
r =___________________
Rr x rr RR x rr RR x Rr Rr x Rr
How many of the offspring will be round? _______________ How many of the offspring will be wrinkled? _______________ How many of the offspring heterozygous? _________________
How many of the offspring will be round? _______________ How many of the offspring will be wrinkled? _______________ How many of the offspring homozygous dominant? _______________
How many of the offspring will be round? _______________ How many of the offspring will be wrinkled? _______________ How many of the offspring purebred? _________________
How many of the offspring will be round? _______________ How many of the offspring will be wrinkled? _______________ How many of the offspring homozygous recessive? _________________
Four toes are dominant to three toes.
MAKE A KEY F = __________________
f =___________________
FF x ff Ff x ff Ff x Ff ff x Ff
How many of the offspring will have four toes? _______________ How many of the offspring will have three toes? _______________ How many of the offspring heterozygous? _________________
How many of the offspring will have four toes? _______________ How many of the offspring will have three toes? _______________ How many of the offspring homozygous recessive? _________________
How many of the offspring will have four toes? _______________ How many of the offspring will have three toes? _______________ How many of the offspring Purebred? _________________
How many of the offspring will have four toes? _______________ How many of the offspring will have three toes? _______________ How many of the offspring hybrid? _________________
Name ___________________ Date ___________________ Period ___________________
A purebred tall plant is crossed with a purebred short plant.
Key: T = __________
t =____________
Genotype of the parents ___________x __________
Phenotype of the parents _____________x _____________
Use only the lines you need here to complete the statistics
List the genotypes of the offspring
List the phenotypes of the offspring
__________= ________out of ________
________out of ________ will appear ___________________
__________= ________out of ________
________out of ________ will appear ___________________
__________= ________out of ________
________out of ________ will appear ___________________
__________= ________out of ________
________out of ________ will appear ___________________
What percentage of the offspring will be tall? ___________
6. A hybrid tall appearing plant is crossed with a homozygous recessive plant that is short.
Key: ____ = __________ ____=____________
Genotype of the parents _______________x ______________
Phenotype of the parents ______________x _______________
Use only the lines you need here to complete the statistics
List the genotypes of the offspring
List the phenotypes of the offspring
__________= ________out of ________
________out of ________ will appear ___________________
__________= ________out of ________
________out of ________ will appear ___________________
__________= ________out of ________
________out of ________ will appear ___________________
__________= ________out of ________
________out of ________ will appear ___________________
What is the possibility of having a short plant? ____________________________________________________
7. A hybrid black rabbit is crossed with a purebred white rabbit. (White is recessive)
Key: _____ = __________
_____ =____________
Genotype of the parents ___________x __________
Phenotype of the parents _____________x _____________
Use only the lines you need here to complete the statistics
List the genotypes of the offspring
List the phenotypes of the offspring
__________= ________out of ________
________out of ________ will appear ___________________
__________= ________out of ________
________out of ________ will appear ___________________
__________= ________out of ________
________out of ________ will appear ___________________
__________= ________out of ________
________out of ________ will appear ___________________
What percentage of the offspring will be white rabbits? ___________
8. A heterozygous tall eared rabbit is crossed with a heterozygous tall eared rabbit. (Lop eared is recessive) Key: ____ = __________ ____=____________
Genotype of the parents _______________x ______________ Phenotype of the parents ______________x _______________
Use only the lines you need here to complete the statistics
List the genotypes of the offspring
List the phenotypes of the offspring
__________= ________out of ________
________out of ________ will appear ___________________
__________= ________out of ________
________out of ________ will appear ___________________
__________= ________out of ________
________out of ________ will appear ___________________
__________= ________out of ________
________out of ________ will appear ___________________
What is the possibility of having a Lop eared bunny? _________________________________________________
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