ch 4

Question 1

what gene creates males?

Answer 1

SRY

Question 2

why do males inherit much more X-linked disorders?

Answer 2

-since the X inherited is passed by mom they must show that gene

Question 3

nondisjunction

Answer 3

• failure to separate during meiosis or mitosis
  =meiosis 1 - (separates homologous chromosomes) You can tell in dad by XY mom not really
  =meiosis 2- (separate sister chromatids) You can not tell because it is the same so XX
• you can tell in the parent that is different like AC

Question 4

x-linked recessive

Answer 4

more in males - their offspring should not be affected but all the daughters are carriers and half of the daughter’s sons are affected