study guide review chapter 15

Question 1

what is the wild type in flies eyes?

Answer 1

red eyes W+

Question 2

what is white eyes in male flies vs female flies?

Answer 2

female: ww male: w

Question 3

what are cross-linked X traits?

Answer 3

only prevalent on X, so if female has xx then she is positive, if male has xY, he is positive

Question 4

what is parental type?

Answer 4

looking exactly like one of your parents

Question 5

what is nonparental type?

Answer 5

looking like neither of your parents

Question 6

parental type in flies?

Answer 6

either gray body and normal wings (normal) or black body and vestigial wings (mutant)

Question 7

nonparental type in flies?

Answer 7

gray body vestigial wings or black body normal wings

Question 8

what is the mechanism for getting nonparental types?

Answer 8

crossing over is the mechanism for getting nonparental types

Question 9

monosomy vs. trisomy

Answer 9

a monosomic zygote has only one copy of a particular chromosome whereas a trisomic zygote has 3 copies
trisomy - down syndrome
monosomy - only one viable that is a monosomy involves X

Question 10

genomic imprinting?

Answer 10

one of their two parents their gene is imprinted meaning it is turned off and will never be expressed

Question 11

chromosome translocations?

Answer 11

cancers: chronic myelogenous leukemia are caused by translocations of chromosomes