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WorksheetsDihybrids
Total questions: 39
Worksheet time: 1hrs 17mins
A white mouse with red eyes is crossed with a black mouse with brown eyes. The white mouse is recessive for both of its traits. The black mouse is dominant for both of its traits.
This cross would be
BBEE x bbee
BBEe x BbEe
BbEE x BbEe
BBee x BBEE
What goes in box 15
aabb
AABB
aaBB
AAbb
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
9/16
3/16
1/16
16/16
A way to predict genetic probability using two different
sets of alleles on two different chromosomes.
Co-Dominance
Incomplete Dominance
Monohybrid Cross
Dihybrid Cross
AA and Aa always show up as
dominant
recessive
What is considered to be the phenotype?
Double stranded chromosomes
The physical trait that is expressed
The combination of genes
All of the genetic information
Select the following options that represent a genotype.
Rr
Round peas
Smooth peas
rr
What pattern of inheritance is shown in this image?
Codominance
Incomplete dominance
Complete dominance
What pattern of inheritance is shown in this image?
Codominance
Incomplete dominance
Complete dominance
Phenotype refers to the ______________________ of an individual.
genetic makeup
actual physical appearance
recessive alleles
Which of the following genotypes is homozygous recessive?
Tt
tt
TT
T
What does heterozygous mean?
An organism that has the same alleles for a trait (TT or tt)
An organism that has different alleles for a trait (Tt)
When neither allele is fully dominant; offspring is a mixture of both
the different forms of a trait (hair color--> brown, blonde, red
Law which states that different traits are inherited independently of each other
Law of independent assortment
Genetics law
Law states that 1 allele is more dominant than the other. Recessive allele is only expressed when dominant is not present
Law of dominance
Law of inheritance
If your genotype is Bb, then you can only pass a B or b to your child but you can't pass both.
Law of Dominance
Law of Segregation
Law of Independent Assortment
An organism is a hybrid genotype (Tt) but is appears tall instead of short.
Law of Dominance
Law of Segregation
Law of Independent Assortment
Law of Independent Assortment
The way an organism looks and behaves
Genes for different traits are inherited independently of each other
Alleles for a trait are the same
Genotype
Different forms of a gene
Alleles for a trait are the same
The allele combination of an organism
What is Mendel's Law of Independent Assortment?
If the recessive allele is passed for one trait, then it is more likely that the recessive allele will be passed for the other trait.
The passing of allele of one trait does not affect the passing of allele of another trait.
If the dominant allele is passed for one trait, then it is more likely that the dominant allele will be passed for the other trait.
If the dominant allele is passed for one trait, then it is more likely that the recessive allele will be passed for the other trait.
Mendel's Law of Segregation means?
Every person has two alleles for each trait, they segregate from each other and the dominant is passed more often.
Every person has two alleles for each trait, Where two traits are being passed, they do not effect each other.
Every person has two alleles for each trait, they segregate from each other and are passed down at random.
Every person has two alleles for each trait, they segregate from each other and the recessive is passed more often.
This is a Dihybrid Punnett Square. It has 16 boxes and crosses 2 traits instead of one. Use your knowledge of how to write genotypes and fill in the first row with the correct genotypes.
Having a Widow's Peak is dominant (W) over not having one (w). If parent A (WW) and parent B (ww) have a child, what is the likelihood that--
The child will have a widow's peak
100%
The child will not have a widow's peak
0%
The genotype of these children
Ww
Select the boxes in the Punnett Square where you would find heterozygous offspring.
