Part 1
Gregor Mendel used pea plants to study heredity for all of the following reasons EXCEPT:
A. that it was relatively easy to cross different pea plants in order to observe the resulting offspring
B. that their characters, like pod color and height, were easy to observe
C. that the characters Mendel studied had at least two identifiable traits
D. that many characters such as pod color and seed shape were controlled by a dozen or more interacting genes
What is D. that many characters such as pod color and seed shape were controlled by a dozen or more interacting genes?
One of the following is a phenotype...
A. Bb
B. black fur
C. a pea plant
D. a Punnett square
What is B. black fur?
Different forms of genes that result in different traits are known as alleles.
True or False?
What is True?
Two traits produce a blended phenotype.
A. codominance
B. incomplete dominance
C. multiple alleles
D. polygenic inheritance
E. simple dominance
What is B. incomplete dominance?
The study of how traits are passed from one generation to the next is called the science of_______________
heredity, genotype, codominance, genetic drift
What is heredity?
When Mendel crossed purebred pea plants having green pods with purebred pea plants having yellow pods, the offspring were all...
A. purebred pea plants with green pods
B. purebred peas with yellow pods
C. hybrid peas with all green pods
D. hybrid peas with some green and some yellow pods
What is C. hybrid peas with all yellow pods?
An example of codominance is....
A. pink snapdragon color
B. crossing a tall plant and a short plant to produce a medium plant
C. crossing a pea plant with round seeds and a pea plant with wrinkled seeds to produce a pea plant with round seeds
D. crossing a white horse and a black horse to produce a horse with both black hairs and white hairs
What is D. crossing a white horse and a black horse to produce a horse with both black hairs and white hairs?
An organism's genotype determines its phenotype.
True or False?
What is True?
The pod color of pea plants is controlled by only one gene that has only two possible alleles.
A. codominance
B. incomplete dominance
C. multiple alleles
D. polygenic inheritance
E. simple dominance
What is E. simple dominance?
The random change in the ratio of alleles in a population over time is known as ______________
heredity, genotype, codominance, genetic drift
What is genetic drift?
A cross between purebred peas with inflated pods and purebred peas with pinched pods resulted in peas with all inflated pods. The recessive trait was...
A. hybrids
B. inflated pods
C. pinched pods
D. pod shape
What is C. pinched pods?
An example of multiple alleles would be...
A. Depending on the interaction of two genes, Labrador retrievers can be black, brown, or yellow.
B. The gene that controls fur color in rabbits has four different alleles.
C. Human eye color is controlled by up to sixteen different genes.
D. A Red Bull crossed with a white cow produces a roan calf.
What is B. the gene that controls fur color in rabbits has four different alleles?
Skin color, height, and intelligence are controlled by a single gene.
True or False?
What is False?
A gene has more than two possible alleles/
A. codominance
B. incomplete dominance
C. multiple alleles
D. polygenic inheritance
E. simple dominance
What is C. multiple alleles?
The letters that help visualize a pea plant's genetic makeup are called its _____________
heredity, genotype, codominance, genetic drift
What is genotype?
Of the following, only this one is not one of Mendel's three principles of heredity...
A. In a cross of purebred parents, all offspring will show the dominant trait
B. In a cross of hybrid parents, all offspring will also be hybrid
C. Two alleles for a parent's gene separated then each combines with an allele from the other parent to determine the offspring's trait
D. Each allele is passed to the offspring independently of the other alleles
What is B. In a cross of hybrid parents, all offspring will also be hybrid?
Genetic drift would most likely occur in one of the following populations:
A. a greenhouse of snapdragons
B. an orchard with thousands of orange trees
C. a pea plant farm
D. a petting zoo with a dozen pygmy goats
What is D. a petting zoo with a dozen pygmy goats?
Natural selection has been observed to create new kinds of organisms.
True or False?
What is false?
Two or more genes interact to produce a single trait.
A. codominance
B. incomplete dominance
C. multiple alleles
D. polygenic inheritance
E. simple dominance
What is D. polygenic inheritance?
Crossing red-flowering camellias and white-flowering camellias to produce camellias with flowers that are both red and white is an example of ______________
heredity, genotype, codominance, genetic drift
What is codominance?
Alleles for a dominate trait are represented with _________ letters.
What are uppercase letters?
A population of foxes migrates into a desert region. The number of foxes with larger ears is most likely to____________
A. increase
B. decrease
C. remain the same
D. change randomly
What is A. increase?
The number of boxes in a Punnet square with hybrid genotypes tells you exactly how many hybrid offspring will be produced.
True or False?
What is false?
Both traits are present in hybrid offspring, but without blending.
A. codominance
B. incomplete dominance
C. multiple alleles
D. polygenic inheritance
E. simple dominance
What is A. codominance?
The nightmare inducing potato is called a ___________
What is a Spudoodle?