Section IIA Flashcards
1
Q
What are the four types of genetic disorders?
A
- Chomosome Disorders
- Single-gene disorders
- Multifactorial disorders
- mitochondrial disorders
2
Q
Why has the clinical importance and number of genetic disorders increased in the last century?
A
- we have better public health
- we have better technology to find genetic disease
3
Q
What are the two types of repeated DNA sequences in the human genome?
A
- Dispersed repetitive DNA
- Satellite DNA
4
Q
What are the properties of dispersed repetitive DNA?
A
- Scattered throughout the genome
- Short and Long interspersed elements (SINEs and LINEs)
5
Q
What is the arrangement of satellite DNA?
A
- clustered together in certain locations, where they appear in tandem.
- Ministellites and Microsatellites
6
Q
When does the formation of Chiasma take place and what is the significance?
A
- Prophase I of meiosis
- Represents the crossing over and exchange of genetic material between sistern chromatids.
7
Q
When does the reduction division take place and what is the result?
A
- takes place during meiosis I
- the result is 2 haploid cells from 1 diploid
8
Q
When does the equational division take place? What is the result?
A
- takes place in meiosisII
- The haploid cells are replicated
9
Q
At what stage does synapsis take place? What occurs?
A
- prophase 1
- homologous chromosomes line up side by side
- X and Y in male do not becuase they are non-homogolous.
10
Q
What are the stages of cellular division?
A
PMAT
-Prophase, metaphase, anaphase, and telophase
