Eukaryotic Genes Flashcards
1
Q
What is the definition of a Gene?
A
a DNA segment that contributes to phenotype/function
2
Q
What are the three Eukaryotic consensus sequences?
A
- TATA Box
- CAAT Box
- GC Box
3
Q
Describe the RNA polymerase binding site.
A
- Promotor
- Upstream of transcriptional start site
- Provide specificity
- Tell RNA polymerase where to start
- Indicates which strand will be transcribed and the direction of transcription
4
Q
What is the role of spliceosome?
A
Remove Nuclear pre-mRNA introns
5
Q
Differentiate the two types of introns
A
Group I/II -> Excise self with guanosine
Nuclear pre-mRNA introns: Use spliceosome
6
Q
What is characteristic of Autosomal recessive traits?
A
- appear equally in males/females
- Skip generation s
- More likely in progeny of related parents
7
Q
What is characteristic of Autosomal Dominant?
A
- Equally represented btwn sexes
- Unaffected person do not transmit
- Affected persons have at least one affected parent
8
Q
What is characteristic of X lined Recessive?
A
- Appear more in males
- Affected males t4end to come from unaffected mothers
- NEVER inherited from father
- Skip generations
9
Q
What is characteristic of X-linked dominant?
A
- Do NOT skip generations
- Affected males pass trait to ALL daughters and NO sons
- Affected females pass trait to HALF of their offsprings (Male and female)
***More often in females
10
Q
What is characteristic of Y linked traits?
A
- Only males
- Passes father - Son
- All male offspring are affected
