Prehistoric Earth
It's best defined as a record of all fossils found on Earth.
The fossil record
They are what a cladogram is based
Shared characteristics
Long legs are a recessive trait in larkeys. Using the letter "a", what must the genotype be if a larkey has long legs?
aa
Natural selection begins with this random change in an organisms DNA.
Mutation
A gene composed of two different alleles, one dominant and one recessive
Heterozygous
It's the approximate age of the Earth
4.6 billion years
Fill in the blank: All butterflies have wings. Some butterflies have orange wings, some have blue wings. Wings are a _____________________ of butterflies.
Feature
Red eyes are dominant in larkeys. Using the letter "e" what must the genotype be if the larkey has red eyes?
EE or Ee
This is the processes by which individuals best adapted to their environment tend to survive and pass their traits to future generations.
Natural Selection
The basic unit of heredity carried by the chromosome; it codes for one specific protein
Gene
It's the idea that layers of rock form in a sequence with oldest rock layers on the bottom and youngest layer on top
Principle of superposition
They are the common ancestor of you and your cousin.
Grandparents
It's how we refer to larkeys with a genotype of "TT" or "Tt" for tail type.
Homozygous or Purebred
It's the process of one species developing into two or more species that can no longer mate.
Speciation
A vertebrate with four limbs
Tetrapod
It's the process of dating fossils relative to which rock layer they are found.
Relative dating
They are your most recent common ancestors.
Parents
It's how we refer to larkeys with a genotype of "Ff" for fur pattern
Heterozygous or Hybrid
Assume blue eyes are dominant to green eyes. Charles is homozygous for blue eyes. He marries Margaret who is heterozygous. Create a Punnett square and identify the possible genotypes of their offspring.
EE and Ee
A gene composed of two identical alleles; purebred
Homozygous
Acanthostega
The ability to roll your tongue, your hairline and eye color are all examples of these.
Inherited traits
Using the letter "e" to represent eye color, if red eyes are dominant and grey eyes are recessive for larkeys, what is the genotype for a larkey that is purebred for red eyes?
EE
Sherman is heterozygous for blue eyes. He meets a beautiful green eyed girl named Mildred at the pool. They fall in love and decide to start a family. Complete a Punnett square to determine the possible genotypes of their offspring. Then, list the possible phenotypes of their offspring and their probability.
50% blue eyes and 50% green eyes
A structure made of coiled DNA that transfers hereditary information to the next generation.
Chromosome