Organisms of the same species at the same level of descent from a common ancestor:
Generation
Traits that are considered helpful for an organisms to survive in its environment are:
Favorable traits
An organisms traits are caused by its genotype. The effect is the organisms:
Phenotype
A group of organisms of the same species that can produce fertile offspring and are in the same area.
Population
Why are siblings similar but not exactly the same?
They inherit a unique set of chromosomes from each parent.
The ability to survive in the environment and reproduce and pass genetic material to the next generation.
Survival of the Fittest
Humans selecting traits that are considered to be favorable in plants and animals is called:
Artificial selection
How many chromosomes do human gametes have?
23
What is the percent chance that offspring will inherit a homozygous recessive genotype if both parents are heterozygous for the trait?
25%
A characteristic of an organism:
Trait
When a creature inherits two dominant alleles for a trait and they both show up in the phenotype, such as one red eye and one green eye, this is what type of inheritance?
Codominance
When a dominant allele cannot be completely expressed in a phenotype this type of inheritance is called:
Incomplete dominance
Describe the genotype of the offspring of a cross between a homozygous dominant parent and homozygous recessive parent?
All will be HETEROZYGOUS
How many alleles does an organism inherit from each parent?
1
Black labs (dominant fur color) can still have yellow puppies (recessive fur color) under what conditions?
Both parents carry the recessive allele in their genotypes
The study of the passing of traits from parent to offspring.
Genetics
A process by which organisms with favorable traits produce more successful offspring than organisms with less favorable traits, causing the favorable traits to become more common in the population.
Natural Selection
Improvement of a trait or function through natural selection.
Adaptation
What is the name of the genotype if an organism inherits two dominant alleles for a trait?
Homozygous dominant
Organisms inherit two possibilities for each trait, one from each parent. This combination of genes is its:
Genotype