Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
6 Cards in this Set
- Front
- Back
When does crossing over occur?
|
When homologous chromosomes pair up during Prophase I
|
|
Sex-linkage
|
- affected makes will pass the gene to ALL daughters
- sex-linked recessive affect only males; cannot be passed from father to son, but skip a generation (father to grandson) bia a daugher who is a carrier |
|
Nondisjunction
|
Failure of homologous chromosomes to separate during meiosis I or II
|
|
XXY
|
sterile males
|
|
XXX
|
infertile females
|
|
XYY
|
normal males, but taller than afferage
|