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WorksheetsGenetics
Total questions: 23
Worksheet time: 42mins
The hydra is a very small, simple animal that lives in water. Hydras reproduce asexually by budding, a process in which a bud breaks off an adult hydra and floats away.
Which of the following best describes a hydra bud?
A hydra bud is genetically identical to the parent hydra.
A hydra bud has different mutations than the parent hydra.
A hydra bud contains genetic material from its two parents.
A hydra bud has half as much genetic material as the parent hydra
The gene for dimples (D) is dominant over the gene for no dimples (d). Each parent, in Mendelian inheritance, can only give one gene for each trait. The mother is homozygous recessive and the father is heterozygous.
Dad = Dd
Mom = dd
The dominant D for dimples was given to “the child” from the father
The dominant D for dimples was given to "the child" from the mother
The mother passed the dominant gene to the child
The gene for dimples (D) is dominant over the gene for no dimples (d). Each parent, in Mendelian inheritance, can only give one gene for each trait. The mother is homozygous recessive and the father is heterozygous.
Dad = Dd
Mom = dd
The dominant D for dimples was given to “the child” from the father
The dominant D for dimples was given to "the child" from the mother
The mother passed the dominant gene to the child
The mother has the genotype dd and has no dimples.
The gene for dimples (D) is dominant over the gene for no dimples (d). Each parent, in Mendelian inheritance, can only give one gene for each trait. The mother is homozygous recessive and the father is heterozygous.
Dad = Dd
Mom = dd
My mother has two recessive genes for dimples
The dominant D for dimples was given to "the child" from the mother
The phenotype is dimples and the genotype is heterozygous.
My mother could only pass on a recessive (d) gene to me.
The gene for dimples (D) is dominant over the gene for no dimples (d). Each parent, in Mendelian inheritance, can only give one gene for each trait. The mother is homozygous recessive and the father is heterozygous.
Dad = Dd
Mom = dd
My mother has two recessive genes for dimples
The dominant D for dimples was given to "the child" from the mother
It doesn’t matter which gene the mother passes to the child because the father gave the child a dominant dimple gene.
The phenotype resulting from Dd would be to have dimples.
Some moths have a brown body and brown wings, while other moths have a white body and white wings. The brown moths often rest on the bark of pine trees, and the white moths rest on the white bark of aspen trees.
If all the aspen trees in an area were cut down, what would be the likely result?
The white moths will migrate to a new area where aspen trees are found. The brown moths will remain in the original area. The number of brown moths will increase.
The white moths will grow brown wings in order to blend in with the environment. Over time, there will be no white moths in the area.
The white moths will rest on the remaining trees. Over time, they will become brown moths, so the number of moths will increase.
More brown moths will survive than white moths because predators will be able to spot the white moths more easily. Over time, there will be no white moths in the area.
In one student's family, two of the children have curly hair, one child has wavy hair, and the fourth child has straight hair. Which of these processes is responsible for the variety of hair texture in this family?
sexual reproduction
asexual reproduction
binary fission
vegetative propagation
Crickets communicate with other crickets by chirping. Crickets who cannot make a sound are less likely to find a mate and reproduce. For this reason, there are few crickets that cannot make a sound. This is an example of
selective breeding
natural selection
genetic replication
learned behavior
White short-horned cattle and Black Angus cattle have been crossed to produce offspring with superior beef quality. This process of choosing organisms for the most desirable traits for mating is known as –
biodiversity
selective breeding
cloning
genetic engineering
One side of section of DNA is shown below.
A-G-C-T-T-G-A
Which of the following would be the matching side of the section of DNA?
C-T-A-G-G-A-G
A-C-G-T-T-C-T
T-C-G-A-A-C-T
A-G-C-T-T-G-A
Blue is dominant
Yellow is recessive
BB/Bb
Bb/bb
The ratio of blue flowers to yellow flowers in the offspring is ─
25% blue and 75% light blue.
50% blue and 50% bluish yellow.
75% blue and 25% yellow
100% blue and 0% yellow
Mom = RR
Dad = Rr
The genotypes of the parents are
Homozygous dominant and heterozygous
Homozygous dominant and homozygous recessive
Both heterozygous
Heterozygous and homozygous recessive
Frank is a 5 foot 2-inch-tall male weighing 123 pounds. He has dark black hair, dark brown eyes, and dark skin coloration. He is very athletic and enjoys playing basketball. His first language is French, but he has learned to speak Spanish as well. The genetic information inside Frank's chromosomes is most responsible for-
his height and his native language of French
his height and his ability to learn multiple languages
his weight and his athletic ability
his natural eye color and skin color
Cystic fibrosis is a genetic disorder in which a particular gene does not make protein the way that it otherwise normally would. Given that cystic fibrosis is a genetic disorder, how would an individual most likely contract this disease?
A person’s parents would have to carry genetic material for cystic fibrosis within their chloroplasts which could then be passed down
A person’s parents would have to carry genetic material for cystic fibrosis within their chromosomes which could then be passed down.
Genetic disorders can be transmitted in so many ways that it is impossible to tell how a person acquired the disease.
A person would have to have been exposed to environmental influences such as living next to a nuclear power plant.
In sunflowers, the gene for blue flowers is dominant over the gene for yellow flowers, which is recessive. If two yellow flowered plants produce six offspring, how many of those offspring will have yellow flowers?
Six
Zero
Four
Three
The hereditary information in animal and plant cells is located on chromosomes, which are stored in the cell’s
walls
nucleus
alleles
plates
When a trait has two forms and one trait is expressed over the other, the trait that is expressed is said to be ─
dominant
heterogeneous
recessive
phenotype
Where is DNA located?
in almost all cells
only in phenotypes
only in respiration
only in plant cells
What statement best describes the function of DNA?
The function of DNA is unknown.
DNA encodes all information needed to create and direct the chemical instructions of life as well as produce the diversity found in all living organisms.
DNA is found in cells.
DNA resembles a twisted ladder composed of alternating sugar and phosphate molecules with nitrogen base pairs as the steps.
What statement best describes the structure of DNA?
DNA encodes all the information needed to create and direct the chemical instructions of life.
DNA is found in cells
DNA resembles a twisted ladder composed of alternating sugar and phosphate molecules with nitrogen base pairs as the steps.
DNA produces the diversity found in all living organisms.
What is an advantage of sexual reproduction?
There are no advantages of sexual reproduction.
It is a rapid form of reproduction
Each offspring is has an identical twin
It produces diverse offspring
Three boys have a similar appearance but different face shapes. Which cell components are most involved in determining the basic shape of each boy's face?
Vacuoles, nucleus, and chromosomes
Cytoplasm, chloroplasts, and genes
Genes, chromosomes, and nucleus
Chromosomes, chloroplasts, and vacuoles
When a litter of puppies is born, the pups will exhibit certain physical characteristics that can be found in one or both of the parent dogs. These characteristics passed down from parent to offspring are considered to be-
inherited traits
physical traits
phenotypes
learned behaviors
