Inheritance & Variation of Traits
This is something you inherit from your parents, like eye color or dimples.
What is a trait?
This is a change in the DNA sequence of an organism.
What is a mutation?
This is a group of the same type of organism living in the same area.
What is a population?
This word describes the variety of different living things in an ecosystem.
What is biodiversity?
This is when humans choose organisms with desired traits to reproduce.
What is selective breeding?
These are the structures inside of cells that carry genetic information from parents to offspring.
What is a chromosome?
This type of mutation happens when a DNA base is removed from the sequence.
What is a deletion mutation?
These are the living parts of an ecosystem.
What are biotic factors?
These are the benefits humans get from ecosystems, like clean water, food, and oxygen.
What is ecosystem resources?
Farmers breeding crops to be bigger or grow faster is an example of this human impact on traits.
What is artificial selection?
This type of reproduction results in offspring that are genetically identical to the parent.
What is asexual reproduction?
This is a different version of a gene.
What is an allele?
When one population increased and another decreased because they rely on each other for food.
What is predator-prey relationship?
Cutting down large areas of forests can reduce biodiversity. This human activity is called this.
What is deforestation?
Over time, using antibiotics can lead to bacteria developing this trait.
What is antibiotic resistance?
This tool is used to predict the possible genetic outcomes of offspring by organizing allele combinations from each parent.
What is a punnett square?
This is the genetic makeup (the allele combination) for a specific trait, usually written with letters like BB, Bb, or bb.
What is a genotype?
In this relationship, one organism benefits while the other is harmed, such as a tick feeding on a dog.
What is parasitism?
When a variety of species live in an ecosystem, it is more likely to recover after a disturbance like a storm or fire. This property is called this.
What is ecosystem stability?
When humans remove certain organisms from an environment, it can reduce this in a population.
What is genetic variation?
Parent A has brown eyes and is heterozygous (Bb). Parent B has blue eyes and is homozygous recessive (bb). This is the probability that an offspring will show the dominant trait.
What is 50%?
In a population of insects, most are yellow. Although, a mutation causes some to be green. The environment changes and grass begins to grow. This explains what insect will most likely survive and what happens to the population in the new environment.
What is the green insects are more likely to survive and reproduce, so over time more of the population will become green?
In this relationship, both organisms benefit, such as bees getting nectar while helping flowers reproduce.
What is mutualism?
When factories release pollution into a river, many species can no longer survive there, reducing biodiversity. This type of human impact is called this.
What is pollution?
When humans removed gray wolves from Yellowstone National Park, elk populations increased and overgrazed plants, leading to fewer habitats for other species. This is the change in the ecosystem caused by human actions.
What is a decrease in biodiversity?