Upgrade to remove ads
Only $2.99/month

Chapter 5

Terms in this set (24)

Heredity
the passing of traits from parent to offspring
Alleles
the different forms a gene may have for a trait
Genetics
the study of how traits are inherited
Gregor Mendel
Father of Genetics
Purebred
an organism that always produces the same traits in its offspring
Hybrids
organisms that receive different alleles for a trait from each parent
Probability
predicting what will happen or the chance that something will occur
Punnett Square
tool used to predict results
Dominant
the trait which shows up most often in a population
Recessive
the trait which shows up least often in a population
Genotype
genetic makeup
TT, Tt, tt
Phenotype
physical trait that shows as a result of its genotype
Homozygous
when both alleles are the same
TT or tt
Heterozygous
when the alleles are different
Tt
Incomplete dominance
When neither trait is dominant forming a trait that is mixed. Ex: red vs. white flowers create pink
multiple alleles
having more than 2 alleles which control a trait
blood type
has 3 alleles and 4 types
A, B, O, and AB
polygenic inheritance
when a group of gene pairs acts together to form a trait Ex: height, eye color, hair color, etc
sex-linked gene
an allele inherited on the sex chromosome
XX
sex chromosomes for a female
XY
sex chromosomes for a male
pedigree
used to trace a trait through a family
sex-linked disorders
colorblindness and hemophilia
genetic engineering
changing the arrangement of genes through a variety of techniques
YOU MIGHT ALSO LIKE...