A chart that shows all possible combinations of alleles that can result from a genetic cross
Punnett square
100
The study of heredity
Genetics
100
Can an individual's characteristics be determined by a interaction between genes and the environment
yes, like height
100
The theory for which he is known for
The theory of evolution by natural selection
100
The preserved remains or traces of an organism that lived in the past.
fossil
200
These have two different alleles
hybrid or heterozygous
200
Physical appearance of a trait
Phenotype
200
What is an example of a trait that is controlled by more than one gene?
skin color, height, eye color
200
A group of similar organisms that can mate and produce fertile offspring.
species
200
The millions of fossils that scientists have collected
a fossil record
300
Can a cross between a purebred white duck and a purebred black duck result in a white duckling?
No, but the ducklings will not longer be purebred.
300
An organism with two identical alleles is ...
homozygous or purebred
300
A chart or family tree that tracks which memebers of a family have a particular trait.
pedigree
300
Why did the finches observed by Darwin have different beaks?
Their beaks were adapted to what food they ate.
300
When there are no members of a species that are still alive
extinct
400
If you cross a Bb and Bb, what are the odds that the offspring will be bb?
25% or 1/4
400
What are the alleles for females and males?
Female is XX, and male is XY
400
An abnormal condition that a person inherits through genes or chromosomes, and caused by mutations.
genetic disorder
400
A genetic trait that helps an organism survive and reproduce.
Adaptation
400
How do scientists tell the age of a fossil?
by how deep it is buried in the rock. The deeper the fossil, the older the fossil. (or relative or absolute dating)
500
Punnett squares are used to predict
probabilities of genetic allele combinations
500
A person who has one recessive allele for a trait, and one dominant allele, but does not have the trait and can pass the recessive trait to its offspring.
carrier
500
What causes genetic disorders?
A mutation or error in meiosis
500
The process by which individuals that are better adapted to their environment are more likely to survive and reproduce that other memebers of the same species.
Natural selection
500
List three ways to preserve animal remains other than in sediment.