Free Printable Genetic Probability Retake

Worksheets

Genetic Probability Retake

Total questions: 20

Worksheet time: 23mins

Name

Class

Date

G = green, g = yellow
The genotype for a yellow plant is...

all of the choices result in yellow

Which of the following is homozygous dominant?

Which of the following alleles is homozygous (purebred) recessive?

The exact genetic makeup of an organism, such as RR, Tt, PP is its?

phenotype

dominance

genotype

trait

The hidden form of an inherited trait

dominant trait

recessive trait

purebred

hybrid

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

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

recessive

dominant

lower case letter

both

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

0 %

25%

50%

75%

What is the probability that the offspring will express the dominant trait?

25%

50%

75%

100%

10.

The likelihood that a particular event will happen. It can be expressed as a fraction, a decimal, or as a percent.

probability

pedigree

allele

phenotype

11.

Having two different alleles for a gene.

heterozygous

homozygous

12.

Having two identical alleles for a gene.

homozygous

heterozygous

13.

Australian Shepherds are a breed of dogs whose coat color is directly impacted by two different genes. The gene that determines basic coat color exhibits a dominant allele (B) for black coat color and a recessive allele (b) for red coat color. Additionally, these dogs can have a solid coat color (mm) or a mixed pattern coat color called merle (Mm). The homozygous dominant coat color is called a lethal white (MM) which produces pups that are deaf and blind. What is the probability that two red Australian shepherds will produce a black pup?

1/4

1/2

3/4

14.

A heterozygous white pig(Ww) mate with blue pig (ww).
Probability of getting heterozygous offspring?

50%

25%

100%

15.

What is the probability that the offspring will be heterozygous?

25%

50%

75%

100%

16.

What is the probability that the offspring will be homozygous recessive?

25%

50%

75%

100%

17.

What is the probability that the recessive trait will be expressed by the offspring?

25%

50%

75%

100%

18.

Which of these are examples of a genetic trait? Choose two.

the type of music you listen to

your eye color

your natural hair texture

the language you speak

19.

Mutations are a change in what?

DNA

tRNA

genotype

phenotype

20.

You create a punnett square to determine the probability of hair color being passed to offspring. Brown hair is dominant. Blond hair is recessive. Both parents have brown hair. Both parents are heterozygous. What is the probability that the offspring will also have brown hair?

100%

75%

50%

25%

Reset

Genetic Probability Retake

Total questions: 20

Worksheet time: 23mins

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