Vocab
What is homozygous
two identical allele for a trait
What is probability
the likelihood that a particular event will occur
Genetic disorder where the body produces abnormal thick mucus in the lungs and intestines
Cystic Fibrosis
What does a recessive allele do
the recessive allels are covered up when a dominat allele is present
What is our memory verse
John 13:34-35
what is heterozygous
two different allels for a trait
What is a genotype
Physical appearence or visible traits
Genetic disorder where a persons blood clots very slow or not at all
Hemophilia
What does a dominant allele do
It always shows up in the organism when the allele is present
Traits are..
Physical characteristics
What is codominance
the alleles are neither dominant nor recessive
What is meiosis
The process where the number of chromosomes is reduced by half to form reproductive cells
What are the four examples of genetic disorders
Cystic Fibrosis, Sickle cell disease, Hemophilia, and Down Syndrome
What does probability predict
This predicts genetic crosses by a diagram and punnett sqaure
Genes are..
Factors that control traits
different forms of a gene. Some alleles are dominant while other alleles are recessive
How many chromosomes do human cells have
46
What is a genetic disorder?
An abnormal condition that a person inheritsthrough genes or chromosomes
This is causes by an extra copy of chromosome 21, this is a result of an errorin meiosis
Down Syndrome
Heredity is..
The passing of traits from parent to offspring
What is a phenotype
a physical appearence or visible traits
What are chromosomes made of
They are made up of many genes joined together like beads on a string
What is the genetic disorder that effects blood
Sickle cell disease
What causes gentic disorders
caused by mutations or change in the persons DNA
Genetic is..
the scientific study of heredity