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WorksheetsU5: Heredity Review Questions (Up to Pedigrees)
Total questions: 20
Worksheet time: 15mins
Match the following definitions to the correct vocabulary word:
an allele for a trait that is represented by a lower case letter
recessive allele
an allele for a trait that is represented by a capital letter
dominant allele
an organism that has two identical alleles for a trait
homozygous
an organism that has two different alleles for a trait
heterozygous
Match the following allele combination with the correct description:
TT
Homozygous dominant
Tt
Heterozygous
tt
homozygous recessive
A pea seed can be round or wrinkled.
Seed shape is an example of a/an ___.
genotype
phenotype
heterozygous
allele
Look at the parents on this Punnett square.
Click TWO answers that are correct.
one parent is homozygous recessive
one parent is homozygous dominant
one parent is heterozygous
If two parents were Aa and Aa, what percent of their offspring would you expect to be AA?
What is the name of a piece of DNA found on a chromosome?
(The information found in this area will express a trait)
Gene
Allele
Heredity
DNA
Click all the answers that are TRUE facts about DNA.
found in chromosomes
located in the cytoplasm
pieces of it determine the traits of an organism
created by a scientist
Aa, DD, Bb, yy are all examples of...
DNA
traits
What you see, or the physical appearance.
(eye color, hair color, etc)
T - tall and t = short
In this Punnett square, which letters belong in the square with the ?
Which of the following is homozygous recessive?
Fill in the Yellow Box
Bb
BB
bb
Which of the following does the genotype "BB" represent?
Homozygous Dominant
Homozygous Recessive
Heterozygous
According to the punnett square, what is the probability that the offspring will be Tall (T)?
25%
50%
75%
100%
Genes always appear in pairs. One of your parents donates __ allele for each trait.
