The Basics
Passing of physical characteristics from parents to offspring
What is HEREDITY
Offspring of parents with different forms of the same trait
What are HYBRIDS
Section of a chromosome with genetic information for one trait.
What is GENES
An organism's genetic makeup, or allele combinations
What is GENOTYPE
Double stranded nucleic acid that stores an organism's entire genetic material.
What is a DNA
gregor mendel was known as the...
father of modern genetics
An organism's traits are controlled by the different forms of genes, or ________ it inherits from its parents.
What are ALLELES
An organism's physical appearance, or visible traits
What is PHENOTYPE
A change in the sequence of a gene
What is a mutation
Allele whose trait always shows up in the organism when the allele is present
What is a DOMINANT ALLELE
An organism that has two identical alleles for a trait is said to be ___________
What is HOMOZYGOUS
When both alleles can be observed in a phenotype.
Who is CODOMINANCE.
A recessive allele is represented by a __________ letter, while dominant allele is represented by a __________ letter.
What is LOWERCASE and UPPERCASE
Allele whose trait is always hidden whenever the allele is present
What is a RECESSIVE ALLELE
An organism that has two different alleles for a trait is said to be ______________
What is HETEROZYGOUS
The genetic material that carries information about an organism and is passed from parent to offspring
What is DNA (Deoxyribonucleic acid)
Different forms of a gene are called...
Alleles
Brown hair (B) is dominant to blonde hair (b). How many offspring would you expect to have brown hair in a cross between homozygous dominant parent and homozygous recessive parent?
4/4 OR 100%
When both alleles are expressed in the offspring
What is Incomplete Dominance