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WorksheetsDay 03: Quizizz
Total questions: 20
Worksheet time: 10mins
The alleles for different traits are sorted separately and do not affect one another:
Law of Dominance
Law of Independent Assortment
Law of Conservation of Matter
Law of Segregation
One allele is stronger and will be expressed over another:
Law of Dominance
Law of Independent Assortment
Law of Conservation of Matter
Law of Segregation
Mice coat color shows incomplete dominance.
Black (B) and white (W) are homozygous; gray mice are heterozygous.
What is the genotype for a Gray mouse?
BB
BW
Brown
WW
A particular species of flower shows incomplete dominance concerning petal color.
A red-flowered plant (RR) is crossed with a white-flowered plant (WW).
What percentage of the offspring will have red (RR) flowers?
0%
25%
50%
100%
Some flowers are controlled by codominance.
Red flowers (RR), blue flowers (BB), and speckled flowers (RB).
Cross a red flower with a speckled flower, and give the phenotypic ratio.
2 red: 2 speckled
2 red: 2 blue
2 blue: 2 speckled
1 red: 2 speckled: 1 blue
This image is an example of:
simple dominance
multiple alleles
This image is an example of:
multiple alleles
A calico cat shows both the traits for orange fur and black fur.
What kind of allele expression pattern is this?
incomplete dominance
codominance
independent assortment
recessive inheritance
A breed of chicken shows codominance for feather color.
One allele codes for black feathers, another codes for white feathers.
The feathers of heterozygous chickens of this breed will be:
speckled black & white
In some carnations, flower color exhibits codominance.
When crossed, Red (R) and white (W) flowers make speckled flowers (RW) that show both colors.
Complete a cross between two speckled flowers and find the genotype ratio.
Which of the following is not true of dominant genes?
Dominant genes are always expressed wherever they are present.
A dominant gene will overpower all other genes to be the only one expressed.
Two dominant genes can be expressed together in a situation of codominance.
None of the above.
The offspring's phenotype is an intermediate (blended) phenotype of the two parental phenotypes:
incomplete dominance
codominance
complete dominance
recessive inheritance
The offspring's phenotype has independent and equal expression of both parental phenotypes:
incomplete dominance
codominance
complete dominance
recessive inheritance
A plant shows incomplete dominance in size.
A tall plant (TT) is crossed with a medium plant (TS).
What fraction of plants will also be tall?
100%
This image shows an incomplete dominant cross.
(D) codes for straight hair in dogs and (d) codes for curly hair.
The blended trait is wavy hair.
Which of the following statements is true about the offspring?
Only the heterozygous genotype can code for wavy hair.
Only the homozygous dominant genotype can code for wavy hair.
Only the homozygous recessive genotype can code for wavy hair.
The homozygous recessive & homozygous dominant genotypes can code for wavy hair.
What type of inheritance pattern is shown in the image?
codominance
incomplete dominance
simple dominance
multiple alleles
Codominance occurs in cats, which allows for the calico (black & tan) colors to show.
What percentage of the offspring will be calico?
25%
50%
75%
100%
Codomiance occurs in chickens, which allows them to have black, white, or black & white feathers.
What percentage of the offspring will be black?
25%
50%
75%
100%
Codominance occurs in chickens, which allows them to have black, white, or black & white feathers.
What percentage of offspring will have white feathers?
25%
50%
75%
100%
In cattle, red and white are codominant. If you cross two red and white cattle, what percentage of offspring will express the same genotype as their parents?
25%
50%
75%
100%
