Vocabulary
A characteristic passed from parents (or other family members) to offspring
What is: An Inherited Trait
Which characteristic can a human inherit?
A Speaking Spanish
B Loving science
C Having blue eyes
D Facial scar
What is: (C) Having blue eyes
A type of gene interaction in which both forms of a gene (alleles) are partially expressed, resulting in a phenotype that is intermediate or distinct.
What is: Incomplete Dominance
What is the differences in characteristics of members of a species that are the result of differences in genes.
What is: Genetic variation?
What is the name of the diagram that shows the relationships between family members and how traits or health conditions are passed down through generations.
What is: a Pedigree Diagram
The molecule that carries genetic information for the development and functioning of an organism.
What is: DNA
Define an acquired trait
What is: a characteristic or behavior you learn or that happens to you after you are born
What happens when one allele does not totally hide the other. This is observed in the flowers of the four o'clock plant. The allele for red flowers does not cover up the allele for white flowers. So, a cross between a plant with white flowers and a plant with red flowers gives offspring with pink flowers.
What is: Incomplete dominance
In a heterozygous genotype which allele is always expressed?
What is: Dominant
Which shape indicates a male?
What is: a square
A distinct form of a characteristic of a living thing.
What is: A Trait
Which characteristic is acquired rather than inherited?
A. having naturally straight hair
B. knowing how to breathe
C. blinking
D. riding a bicycle
What is: (D) Riding a bicycle
Some genes have alleles that are both dominant. When this happens, both traits can be seen. This is the case for camellia flowers. In this flower, the allele for red color and the allele for white color are both dominant. An offspring of a plant with white flowers and a plant with red flowers is a plant with flowers that have both colors.
What is: Codominance
What refers to an individual's observable traits?
What is: Phenotype
When the shape is shaded, it indicates what?
What is: that the person is homozygous recessive (has the disease/shows the recessive trait)
A part of DNA that carries information that determines what traits a living thing will inherit
What is: Gene
Why is the ability to swim an inherited trait in a fish but a learned trait in a human being?
What is: The ability to swim is an inherited trait in a fish because a fish needs to be able to swim to survive. Without the ability to swim, they would not be able to breathe. Humans do not need to know how to swim in order to survive because we are born on land and breathe air.
Occurs when more than one dominant allele are present and expressed.
What is: Codominance
Name the type of genotype shown: BB
What is: homozygous dominant
Which shape indicates a female?
What is: a circle
What holds the molecule of DNA (that contains many genes).
What is: A Chromosome
Which trait is inherited by all members of the same species?
A. white fur on a dog
B. two wings on a butterfly
C. green eyes on a human being
D. two flowers on a rose plant
What is: (B) Two wings on a butterfly
A cat is striped with brown and black fur. There is one gene for striping and another for fur color.
What is: Multiple Genes
What is the genotype?
What is: A term that refers to the two alleles present
A pedigree diagram can be used to predict what?
What is: How a disease or trait is inherited