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WorksheetsUnit 8: Genetic Patterns
Total questions: 19
Worksheet time: 29mins
What gives you your acquired traits?
Your DNA
Environment
Parents' chromosomes
Heredity
What gives you your inherited traits?
Your DNA
Environment
School
Brain
Which of the following is an acquired trait?
dimples
pierced ears
attached earlobes
cleft chin
This picture represents Gregor Mendel's experiments with pea plants. He bred different combinations of green and yellow plants. Based on the final results, what do we know?
Green and yellow are the only colors pea plants can be.
Green and yellow are dominant traits.
Green is a dominant trait for pea plants, and yellow is a recessive trait.
Yellow is a dominant trait for pea plants, and green is a recessive trait.
If a mother who is homozygous dominant for her eye color, brown, has a baby with a father who is homozygous recessive for his eye color, blue... what will be true about all of their offspring? (Hint: it might help to use a punnett square!)
They would be heterozygous and have blue eyes
They would be homozygous recessive and have blue eyes
They would be homozygous dominant and have brown eyes
They would be heterozygous and have brown eyes
What is a dominant trait?
a trait that shows up if you have at least one dominant allele
a trait that shows up only if you have two dominant alleles
a trait that comes from your childhood
a trait that happens in every generation
I am heterozygous for my eye color (Bb). I have one allele for brown (B) and one allele for blue (b). Why don't I have blue eyes?
The blue allele turned into a brown allele when I grew up.
I don't have two dominant alleles.
The dominant allele (brown), hides the recessive allele (blue).
Brown is darker than blue.
Alleles are different forms of....
cells
mitochondria
golgi apparti
genes
Which of the following is a heterozygous genotype?
brown hair
TT
Tt
tattoos
Which of the following is homozygous recessive?
brown hair
TT
tt
tattoos
Which of the following is homozygous dominant?
Type O Blood
TT
Tt
tt
Which of the following statements is true?
the genotype determines the phenotype
the genotype is stronger than the phenotype
the phenotype determines the genotype
the genotype is an acquired trait
If round faces (R) are dominant to oval faces (r), what is the genotype of a child with an oval face?
oval face
round face
Rr
rr
If blue eyes (b) are recessive to brown eyes (B), what is the phenotype of a child with blue eyes?
bb
blue eyes
Bb
brown eyes
What are Punnett squares useful for?
figuring out what alleles parents organisms have in common
figuring out if genes are for acquired or inherited traits
figuring out exactly what your offspring will look like
figuring out the possible allele combinations offspring might inherit
Are your manners an inherited trait?
yes, because you learn them from your parents
yes, because they are in your DNA
no, because they can change over time
no, because they are not part of your DNA
If an organism that is heterozygous for a certain trait reproduces with an organism that is homozygous recessive for that trait, what are the chances there children will be heterozygous? (use a Punnett square if you want!)
25%
50%
75%
100%
If an organism that is homozygous dominant for a certain trait reproduces with an organism that is homozygous recessive for that trait, what are the chances their children will be heterozygous? (use a Punnett square if you want!)
25%
50%
75%
100%
If a long-eared bunny that is heterozygous (Ee) for this trait reproduces with another heterozygous bunny, what are the chances their offspring will have long ears? (use a Punnett square if you want!)
25%
50%
75%
100%
