Vocabulary 1
What is a mutation?
A change in a gene
What is a gene?
Information that controls a trait; a specific segment or part of DNA
What is a Phenotype?
The physical characteristics of an organism, the way an organism looks like.
What did Gregor Mendel do with with garden peas?
Studied them from one generation to another.
What is fertilization?
A process when an egg and sperm join together to form a new organism.
What is Genetics?
The scientific study of heredity.
What does Homozygous mean?
Used to refer to an organism that has two identical alleles for a particular trait.
Who is Gregor Mendel?
The father of genetics
What is a trait?
A characteristic that an organism can pass to its offspring?
What does Dominant mean and how is it represented?
It masks other traits and is represented by a capital letter
What does Heterozygous mean?
Used to refer an organism that has two different alleles for the same trait.
What is an example of an Heterozygous trait?
Tt
What is the nucleus?
What part of the Cell is DNA located in?
What does recessive mean and how is it represented?
An organism with a recessive allele for a particular trait will only show up if there is no dominant trait.
What does probability mean?
The likelihood that a particular event will occur
What is an example of Homozygous traits.
TT or tt
What are Alleles?
The different forms of a gene.
What is a Genotype?
Genetic makeup of an organism (allele) combination an organism has.
What is a Punnett Square use for?
It is a diagram showing the gene combinations that might result from a genetic cross.
Draw an example of a Punnett Square
Answer will be on the board.