Genes and Inheritance Flashcards
1
Q
What is a Gene
A
A Gene is a section of DNA that codes for a specific protein and is located in DNA on a chromosome that is located inside a cell nucleus.
2
Q
What is a Test Cross
A
A Test Cross is a genetic cross between a parent with a dominant allele and a parent with the recessive allele.
3
Q
What is a pedigree diagram
A
This diagram represents how a particular gene is passed on in a family tree.
4
Q
What is the meaning of Codominant
A
When 2 Alleles are expressed in the same phenotype. Ex: the allele for red and the allele for white flowers produce a pink flower.
5
Q
What is Polygenic Inheritance
A
These are the characteristics that are controlled by 2 or more genes, instead of by just one gene.
6
Q
What are some characteristics that are determined by Polygenic Inheritance
A
- Skin Color.
- Height
- Weight
