Genetic Inheritance Flashcards
What is a heterozygous allele?
2 different alleles
What is homozygous allele?
2 identical alleles
What is an allele?
A version of a gene
What is the genotype?
Genetic makeup of an individual organism
What is phenotype?
Displayed characteristics and how a gene is expressed
What are the genotypes for male and female?
Male is XY
Female is XX
What is the human genome project?
Mapping of all the genes in a human
What is a mutation?
A change in the sequence of DNA
Why is understanding the human genome project is important?
To search for genes linked to different types of diseases
To treat inherited disorders
To trace early human migration patterns
What is a dominant allele?
An allele that only needs one copy for phenotype to be seen
What is recessive allele?
Allele needs 2 copies for its phenotype to be seen
What is a gene and its function?
A section of DNA that codes for a specific protein
Describe how the human genome project has helped establish a classification relationship between 2 species
DNA from both species are sequenced
DNA compared for similarities and differences
The more similarities, the more closely related
Explain how A genetic diagram is useful?
Shows parents alleles
Shows possible inheritance
Shows possible phenotypes
Shows gene dominance
Why are gene characteristic family trees useful?
Track inherited disorders
Shows likeliness of inherited disorders
Shows allele dominance
Likely homozygous or hetero
