Free Printable Monohybrid Cross Practice

Worksheets

Monohybrid Cross Practice

Total questions: 10

Worksheet time: 31mins

Name

Class

Date

Brown hair is dominant over light hair. If a homozygous parent (Aa) is crossed with a heterozygous recessive parent (aa), their children will have...

Only Brown Hair

Only Light Hair

Some brown and some light

In guinnea pigs, black eyes are dominant to red eyes. A male guinnea pig that is heterozygous is crossed with a female that is homozygous recessive. What are the expected phenotypes of their offspring?

Red Eyed and Black Eyed

Only Red Eyed

Only Black Eyed

In cacti, long arms (A) are dominant to short arms (a). Suppose 2 heterozygous cacti are crossed. What percentage of their offspring are expected to have short arms?

25%

75%

100%

T - tall and t = short
In the punnett square below, what belongs in the missing square

What are the possible genotypes for this cross?

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

all tall

TT= 75% tt = 25%

Tt = 100%

If green is dominant over purple, then what is the genotype for this individual?

Purple

Green

In guinea pigs, the allele for short hair is dominant. If all the guinea pigs are born short haired what are the possible genotypes of the parents? (There are two possible combinations.)

Ss + Ss

SS + SS

SS + Ss

ss + ss

Long tongues (T) are dominant to short tongues in green tree frogs. What is the probability that two frogs that are heterozygous for long tongues could produce offspring with short tongues?

100%

75%

50%

25%

Each one of the boxes on the Punnett Square represents what probability of an offsprings' genotype?

25%

10%

10.

In a flowering plant species, red flower color (R) is dominant over white flower color (r). Which of the following genotypes would appear red (MARK ALL THAT APPLY!)

None of these

Reset

Monohybrid Cross Practice

Total questions: 10

Worksheet time: 31mins

Similar Resources on Wayground