bio and histo Flashcards
Klinefelter’s syndrome
47 (XXY); 1 barr body; 1 drumstick; affects only males; tall gynecomastia
turners syndrome
45 (XO); No barr body; affects only females; webbed neck, ‘sphinx’ neck
trisomy X
47 (XXX); 2 barr bodies
X-chromosome polysomia; super female
Downs syndrome
trisomy 21
Edwards syndrome
trisomy 18
patau syndrome
trisomy 13
DiGeorge syndrome
chromosome 22 (22q11)
Cri du Chat
chromosome 5p
mosaicism
46 (XY); 47 (XXY)
Recessive epistasis
w o m a n O , c h i l d A B ,
husbandAblood group
0%
Phenylketonuria recessive gene
100%
Hypertrychosis of auricles; Y-chromosome
Dominated X linked
5 children, 3 girls and 2 boys;
all girls inherited their father’s disease
True Hermaphroditism
both male and female
gonads are revealed
Pleiotrophy
Marfan’s syndrome and Hartnup
disease
Phenocopy
hirsutism resembling adrenal
syndrome; Rubella
Metaphase
equatorial plane; fully condensed
chromosomes; in this phase we study the cell’s
karyotype
Metaphase of second division
haploid number
of chromosomes
nucleosome
8 histone proteins and a part of DNA molecule
karakurt spider
4 pairs of segmented extremities; two rows of red dots
anopheles
malaria
Bug bites
sleeping sickness
Epidemic typhus
lice
Inversion
turned 180 degree