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Kaplan Qbank USMLE



Author5 Posts
  #1

In a certain population, the frequency of color-blind males is 1 in 100.
Assuming that the population is in Hardy-Weinberg equilibrium at this locus,
the frequency of color-blind females is approximately


A. 0.0001
B. 0.0005
C. 0.01
D. 0.02
E. 0.025

  #2

This what i did:

p2+2pq +q2=1
p+q=1

1/100=.0010
q2=.0010
q=0.01

so I go with answer-c {lot of room for error} and I assume its autosomal reccesive???

Assuming no mutations, no migration, no selection, large pop. no selection

___________________
Smell the coffee! "Is That an Osler move??"

  #3

is it "a"?
sad

  #4

ı think A is true .we must solve this problem by assuming X and Y kromozomes,color blindness is carried by X

COLOR BLİND MALES=XY 0.01(FOR ONLY ONE X)
COLOR BLİND FEMALES=XX 0.01×0.01
=0.0001

  #5

Nice answer elif_hande







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