Chapter 4 lecture Flashcards
Who put gene on chromosomes
Thomas Morgan
What causes embryonic gonads to become male
SRY teste determination factor
how is a meta female fly created
3 X /2 Autosomal
how is a female fly made
2 X/ 2 autosomal
intersex fly created
2 x/ 3 autosomal
male fly
1 x/ 2 autosomal
Metamale fly
1 X/ 3 autosomal
nondisjunctio
no separation of chromosomes
What causes Down syndrome
21 chromosome nondisjuction
Turners sysndome is caused how
1 x chromosome
how is kleinfield syndrome caused
XXY
What is a Barr body
inactive X
How do male flys cope with 1 X
X works 2X harder
What is det^+det^+
Homozygous dominate and Wild Type
What is det^+det
Heterozygous
what is detdet
homozygous recessive and double mutant
What is A+A+
homozygous dominant and double mutant
A+a
heterozygous
What is AA
Wild type homozygous recessive
If red eye female mates with white eye male what is the F1 and F2 considering Eye color is on x chromosome
F1 All males and females red eyes
F2 All females red and 1/2 red eye male/ and 1/2 white eye male
If white eye female mates with red eye male what is the F1 and F2 considering Eye color is on x chromosome
F1 all red eye female and all white eye male
F2 1/2 red and 1/2 white eye female and 1/2 red and 1/2 white eye male
What are 2 examples of X-linked traits
hemophila and colorblindness
What is a sex linked trait
any gene found on X
how do sex chromosome know they are homologus
pseudoautosomal points