Early Theories Ancient cultures recognized inheritance and that species changed over time. They knew
that characteristics travelled from plants, animals, and humans changed from generation to
generation. Even back then there was selective breeding for the
Species: Individuals can successfully interbreed. There will be no complications, such as we
have the same matching chromosomes that can match up, as well as body parts that will match
together. 200+ species of Lake Victoria Cichlids, although different s
What is Mendelian? Complete Dominance: Only the Dominant alleles protein is
produced. Not all traits are simply determined by a single dominant and a single recessive allele.
When you place Red (RR) with a White (rr) together it
Mutation and Variation
Mutation is a change in the DNA. It doesnt always have to show on the body. Rarely, it
does. Variation of alleles is necessary for selection is needed. Mutations are not always bad.
While it is different than what was supposed to h
19th Century: Blending particle Inheritance was still the main idea of how traits were
exchanged between parent and offspring from all species. A blend of what the two had to offer.
They need to clarify on how inheritance worked, due to mixe
There have been five major extinctions. Reasons for this: Catastrophes, Climate Change,
even other species can cause problems for other animals in the world.
Each species have their unique genes. We use less than 1% for our food, supply
Geology How old the Earth may be. There are two fields involved that in this description. Such
as what the Earth was once like and the rocks with minerals. Stratigraphy Rock strata (layers),
includes fossils. Geochronology Geologic time, radiometric datin
Name: Drosophila Melanogaster. Typically they have brownish, transparent bodies with
red eyes. Why are the used in genetics? Theyre easy to keep around and care for. They have
short generation time (7+ days). Those generations that they have
One of the earliest trees was in 1840 (pre-dating Darwin), the idea had been an early idea
of what early plants may have been as well as animals. They attempt to make connections
between previous animals that could have been linked tog
Last time: Phosphate, sugar, and four different bases were the materials used to make
James Watson and Francis Crick are given the most credit to have the exact, or an idea, of
what the structure of a DNA strand had been. Mentors to these indivi