Gametogenesis - Mitosis and Meiosis Flashcards
Do humans have telocentric chromosomes?
NO!
In a chromosome ideogram the chromosomes are displayed in order of largest to smallest size, which two are reversed?
21 is smaller than 22
How would you say Chr 16p11.2
Chromosome 16, Region 1 Band 1 Sub-band 2 on the p arm
The cell cycle is driven by?
Cyclins
To find the number of chromosomes in a cell count the_____
centromeres
What does Cohesin do?
keeps chromatids attached, facilitates spindle attachment, facilitates recombination
In anaphase why is cohesin gone?
______
What are some unique identifiers of Cornelia de Lange syndrome?
hypertrychinosis, sinofrus (unibrow)
What is aneuploidy?
> or < 46 chromosomes
Examples of aneuploidy
Trisomy 13, 18, 21, 46
Klinefelter syndrome
Turner syndrome
What are hotspots?
_______
What is uniparenaldisomy?
_______
Where can errors occur in Meiosis 1 and 2
Metaphase
22 chromosomes/ monosomy at fertilization results in
Turner syndrome