Punnett Squares
What-the-zygous?
Dominant or Recessive?
Karyotypes!
Mystery????
100

What is the GENOTYPIC percentage?

Aa- 50%

aa-50%

100

BB, homozygous or heterozygous? 

Homozygous

100

B is brown eyes, while b is blue eyes; Which phenotype is dominant? 

Brown eyes

100

Is this a male or female karyotype?

Female

100

Who is considered the "father of genetics"

Gregor Mendel

200

B = Black Hair, b = Brown Hair

What is the probability that the offspring will have brown hair?

0%

200

Aa, homozygous or heterozygous? 

Heterozygous

200

Mom = Aa

Dad = aa

Is the father homozygous RECESSIVE or homozygous DOMINANT

Recessive

200

Is karyotype for a male or female?

Male

200

A = Red Apples 

a = Green Apples

Female Tree = AA

Male Tree = aa

If these trees were crossed, what is the percentage the trees being having green apples?

0%

300

What is the Genotypic percentages?

EE- 25%

Ee- 50%

ee- 25%

300

E = big ears

e = small ears

Parent 1 = heterozygous

Parent 2 = homozygous dominant

Complete punnett square to reveal genotypic percentages

Genotypic percentages:

EE- 50%

Ee- 50%

300

How many offspring will be homozygous recessive offspring will be produced from a cross with a female who is homozygous recessive and a male who is heterozygous?

2

300

Where is the mishap in this karyotype? 

Chromosome 21

300

P = pink shell

p = purple shell

Gary = Pp, Mary = pp

What is the genotypic AND percentage of the offspring produced? 

G: Pp 50%, pp 50%

P: Pink shell 50%, purple shell 50%

400

What are the parental genotypes?

Parent 1: Heterozygous Gg

Parent 2: Homozygous Recessive gg

400

When a recessive trait is visible, do the alleles have to be homozygous or heterozygous? 

Homozygous recessive

400

G = green eyes

g = brown eyes

Female has Gg allele and Male has GG alleles

How many offspring will be homozygous green eyes? 

2

400

Is this a normal or abnormal karyotype? 

Abnormal - Trisomy 18

400

N = pink nose

n = black nose

What possible genotypes could Spooky carry? 

NN or Nn

500


B- Brown eyes; b- blue eyes. 

Complete this Punnett square AND give the phenotypic and genotypic percentages.

Check results with teacher

500

A and a are the alleles 

Mom = Heterozygous

Dad = Homozygous Recessive 

Offspring Genotypic Outcome = ? 

2 Homozygous Recessive, 2 Heterozygous

500

Mendel crossed yellow and green, and only yellow showed in the first filial (F1) generation. What color is the recessive allele trait? 

Green

500

What is the name of the syndrome represented?

Down's Syndrome or trisomy 21

500

What is the probability the offspring will be a Pikachu-SpongeBob mix? 

1/9