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WorksheetsUnit 6: Genetic Inheritance
Total questions: 24
Worksheet time: 13mins
Check all that is true of heterozygotes:
Genotype Aa
Displays the recessive trait
Displays the dominant trait
Have one dominant and one recessive allele
The image represents a cross between a heterozygous black guinea pig and a white guinea pig. What percentage of the offspring are white?
0%
100%
50%
25%
A widow's peak is a dominant trait. Brad does not have a widow's peak even though both his parents do. What conclusion can be drawn?
His parents are both homozygous recessive for the trait
His parents are both heterozygous for the trait
Brad is adopted, and does not have his parent's DNA
His parents are both homozygous dominant for the trait
Check all the traits that could be inherited.
Height
Hair color
Intelligence
Skin color
True or false: Your environment can influence the expression of your traits.
True
False
What is the genotype of a carrier for a genetic disease?
AA
Aa
aa
A black cow and a white cow breed and produce grey offspring. What kind of inheritance is this?
Incomplete dominance
Codominance
Sex-Linked
Blood typing
A black cow and a white cow breed and produce black and white offspring. What kind of inheritance is this?
Incomplete dominance
Codominance
Sex-Linked
Blood typing
What type of blood do genotypes IBIB and IBi represent?
Type O
Type A
Type B
Type AB
Is it possible for a baby with blood type O to have a mother with blood type A and a father with blood type B?
Yes, it is possible.
No, it is not possible.
Who is more likely to inherit an X-linked genetic trait?
Males
Females
What is the sex of individual II-4?
Male
Female
How many children did the couple in generation 1 have?
3
4
How many children did the couple in generation 1 have?
3
4
Check all the genetic diseases that are recessive.
Cystic Fibrosis
PKU
Huntington's
Sickle Cell
Check all that is true of Punnett Squares.
They only show the probability of a trait being inherited
They always show the sex of the offspring
They show the actual inheritance of traits through generations
T
What does the prefix "poly" mean?
Many
One
Two
Few
What does the prefix "hetero" mean?
Same
Different
One
Two
What does the prefix "homo" mean?
Same
Different
One
Two
Check all that could be considered polygenic traits.
Hair Color
Eye Color
Height
Skin Color
The way that your genes are displayed, taking into account genetics and environmental factors.
Genotype
Expression
Heterozygous
Genes
On a pedigree, males are...
Squares
Circles
On a pedigree, females are...
Squares
Circles
If you saw this image on a pedigree, what would you know about this person?
They are a male carrier, with genotype Aa
They are a female carrier, with genotype Aa
They are a male with the trait, genotype aa
They are a male without the trait, genotype AA
