Making of a Theory
What this statement is about science: "Because scientific ideas are tentative and subject to change, they can't be trusted."
What is a misconception?
This molecule is made up of nucleotides arranged in a double helix.
What is DNA?
This type of fossil is the remains of actual parts of a formerly living organism.
What are body fossils?
This is something that allows an organism to survive long enough to reproduce and pass on their genes in specific environments.
What is an adaptation?
This is described by the following definition: A population, or group of populations, whose members can mate and produce fertile offspring.
What is the Biological Species Concept?
This is the standard process that all scientific inquiry follows to study the natural world.
What is scientific method?
What is heterozygous?
This is the age of the Earth.
What is 4.6 billion years.
This is the ultimate source of variation within a population. It can lead to new alleles.
What is a mutation?
Habitat , temporal , behavioral , mechanical and gametic isolation.
What are pre-zygotic reproductive barriers?
This step follows stating a hypothesis and comes before analyzing data and making conclusions?
What is "testing" the hypothesis?
If two dogs are bred (Dd and Dd), this is how many of their 4 puppies you would expect to have the recessive phenotype.
What is 4 or 1/4 or 25%?
This is the Era on the Geologic Time Scale that is often called the "Age of Reptiles".
What is the Mesozoic Era?
This is defined as the ability to successfully reproduce and pass genes to the next generation.
What is Evolutionary Fitness?
This is an example of a post-zygotic reproductive barrier called hybrid sterility.
What is a horse mating with a donkey to produce a sterile mule?
or
Lion with tiger to produce sterile liger?
This is a scientific theory that explains how organisms change over time, or have "decent with modification".
What is the "Theory of Evolution"?
This is all of the genes (and all alleles) of the individuals in the population.
What is gene pool?
This is when the Dinosaurs went extinct on Earth?
What is 65 million years ago or at the End of the Cretaceous Period.
This type of natural selection drives portions of the population the intermediate phenotype and towards both extreme phenotypes.
What is disruptive selection?
This is the science of naming organisms.
What is taxonomy?
These are the 2 people who independently used the process of science to come up with ideas about natural selection.
Who are Darwin and Wallace?
This is the frequency of the B allele if there are 50 individuals in a population and 12 are BB, 25 are Bb, and 13 are Bb.
hint: frequency of b = 0.5
What is 0.5?
These are structures that are found in different species that were inherited from a shared ancestor but may have been modified for different functions.
What are homologous structures?
This is the "organizational" level that microevolution occurs on.
What is a population?
This is a character that is found in the groups of interest, but not in the most recent common ancestor.
What is a derived character?