Punnett Squares

Front

Dominant alleles are represented by a:

Back

capital letter

Front

Aa, DD, Bb, yy are all examples of

Back

genotypes

Front

T - tall and t = short In the punnett square below, what belongs in the missing square Options: tt, Tt, Bb, TT

Back

tt

Front

B = brown eyes b = blue eyes One brother has genotype BB and the other brother has genotype Bb. Which statement is true about these two brothers? Options: They have same phenotype and genotype, They have different phenotypes and genotypes, They have same phenotype, but different genotypes, They have different phenotypes, but the same genotype

Back

They have same phenotype, but different genotypes

Front

Which of the following genotypes is heterozygous? Options: Bb, BB, bb, B

Back

Bb

Front

What is the genotype of any white-flowering plant in a species where red flower color (R) is dominant over white flower color (r)?

Back

rr

Front

What are the phenotype percentages of the offspring? (A-Brown fur color; a-white fur color) Options: 50 % Brown fur and 50% White fur, 25 % Brown fur and 75% White fur, 75 % Brown fur and 25% White fur, 0% Brown fur and 100% White fur

Back

75 % Brown fur and 25% White fur

Front

What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness? Options: 0 in 4, 1 in 4, 2 in 4, 4 in 4

Back

0 in 4

Front

Possible genotypes for this cross?

Back

TT = 25% Tt= 50% tt=25%

Front

B = brown fur  b = white fur
In the Punnett square, what is the probability for white fur? Options: 0%, 25%, 50%, 75%

Back

50%