lecture 11 and 12 chromosomal abberation

Question 1

two nonhomologous acrocentric chromosomes lose their short arms and fuse to form a large single chromosome

Answer 1

roberstonian translocation

Question 2

pericentric
paracentic

Answer 2

includes centromere
excludes centromere

Question 3

monosomy
trisomy

Answer 3

loss of one chromosome (turner syndrome)

addition of a chromosome to the diploid genome

Question 4

mistakes in chromosome segregation during mitosis or meiosis

what does this cause

Answer 4

nondisjuction

aneuploidy

Question 5

what 4 cells does nondisjunction during first division create

what 4 cells does nondisjunction during second division create

Answer 5

2 trisomic
2 monosomic

2 disomic
1 trisomic
1 monosomic

Question 6

you can essentially think of nondisjunction as:

Answer 6

the whole thing going into one cell instead of half