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Worksheets| Heredity| 7th grade science Test review
Total questions: 18
Worksheet time: 12mins
When traits are passed down from parents to the next generation, what is this called?
Traits
Genes
Genotype
Heredity
Name the scientist who is considered the "Father of Heredity"?
Albert Einstein
Isaac Newton
Gregor Mendel
Galileo Galilei
If your friend's mother is purebred for dark skin (dominant) and his/her father is homozygous for light skin (recessive), your friend's skin will most likely be:
Dark skinned
Light skinned
Green skinned
Blue skinned
In Medel's experiment, the first generation of peas happened to turn out all yellow but in the second generation, one of the peas was green. Why is this?
Magic.
There was a hidden recessive trait that got passed down from the previous generation.
Mendel spray painted the fourth pea green so it would look different.
Since Mendel dropped the pea in one of his lab solutions, the chemicals turned the pea green.
There is no scientific reason behind the color of peas, they are randomly generated through the power of the science gods.
BB : Homozygous
Bb : ?
Dominant.
Recessive.
Homozygous.
Heliozygous.
Heterozygous.
What did Mendel call the trait that always seemed to disappear in the offspring if a dominant trait was present.
Dominant.
Heterozygous.
Homozygous.
Recessive.
He didn't name any such thing.
bb : purebred recessive
Bb : ?
Hybrid
Heterozygous
Homozygous
U_U
DNA
An example of environmental influence is...
A black ocean due to the skin shedding of an Orca.
A brown arctic fox in the summer.
A green polar bear in the forest.
A blue monkey in the desert.
Skin getting darker by being out in the sun.
What is an example of of many genes affecting one trait.
Car color.
House color.
Eye color.
Ms. Sabbag's shirt color.
What is the chart called that scientists use to predict the chance of different genotypes occurring in offspring.
Punnet circle.
Punnet square.
Punnet rectangle.
Pedigree chart.
How many alleles (genes) are contributed from the mother or father for a trait.
1
2
23
46
In the second generation of Mendel's experiments, what ratio of dominant to recessive traits did he discover.
2:1
4:1
3:1
1:3
What are two exceptions to Mendel's principles.
Type AB blood (co-dominance) and blue skin (incomplete dominance).
Type AB blood (co-dominance) and red snapdragon (incomplete dominance).
Type AB blood (co-dominance) and white snapdragon (incomplete dominance).
Type AB blood (co-dominance) and pink snapdragon (incomplete dominance).
On a pedigree chart, male is to:
oval
circle
triangle
square
On a pedigree chart, female is to:
oval
circle
triangle
square
In sex-linked traits, if the shape is colored in all the way it mean the person...
Is homozygous dominant and has the disorder
Is a carrier
Is half blue and half green.
Is homozygous recessive and does not have the disorder.
Sex - linked: half colored is...
carrier
has the disorder
does not have the disorder
the person was cut in half
Sex - linked: Empty shape is to...
does not have the disorder
a carrier
has the disorder
the person does not exist
