[PDF] Hardy-Weinberg Problems - Penguin Prof Pages

PDF document for free

1. PDF document for free

7035_3solving_hardy_weinberg_problems.pdf

Introduction

Hardy, Weinberg and Castle determined that the frequencies of alleles and genotypes in a

767<3);165
9-4)15
;0-
:)4-
6=-9
;14-
/1=-5
;0);
+-9;)15
)::<47;165:
)9-
4-;

A!9/)51:4:
)9-
,17361,

A-5-9);165:
)9-
565 6=-93)7715/

A"67<3);165
4<:;
*-
3)9/-

A 6
1441/9);165
69
-41/9);165

A 6
4<;);165
15
;0-
/-5-
6.
15;-9-:;

A 6
5);<9)3
:-3-+;165
6++<9:
15,1=1,<)3:
9-796,<+-
);
-8<)3
9);-:

A);15/
1:
9)5,64

Overview

How to solve Hardy-Weinberg Problems:


-;-9415-
;0-
)33-3-: 
9-8<-5+?
6.
;0-
,6415)5;
)33-3-
1:
,-:1/5);-,
):'p'
9-8<-5+?
6.
;0-
9-+-::1=-
)33-3-
1:
,-:1/5);-,
):
q'
33-31+
9-8<-5+?
#<3-
9-8<-5+?
6.
)
$ 

15
;0-
767<3);165 p + q = 1

3. Genotype Frequency Rule (Frequency of a GENOTYPE in the population):

78
78

 $14731.?
;01:
:;);-4-5;
<:15/
;0-
!
9<3-B72+ pq + pq +q2= 1 p2+ 2pq + q2= 1 p2= frequency of homozygous dominant genotype

78

.9-8<-5+?
6.
0-;-96@?/6<:
/-56;?7-

82= frequency of homozygous recessive genotypePenguin Prof Helpful Hints: Solving Hardy-W

einberg ProblemsPenguin Prof Helpful Hints: Solving Hardy-Weinberg ProblemsPage 1

Sample Problem

In a population of 130,000 magical mice, green fur is dominant over orange. If there are 300 orange

41+-
15
)
767<3);165
6.

.15,
;0-
.6336>15/
)::<4-
767<3);165
1:
15
)9,? &-15*-9/

-8<131*91<4  9-8<-5+?
6.
,6415)5;
/9--5
)33-3- 9-8<-5+?
6.
9-+-::1=-
69)5/-
)33-3-  9-8<-5+?
6.
0646@?/6<:
,6415)5;
0-;-96@?/6<:
)5,
0646@?/6<:
9-+-::1=-
/-56;?7-:

Step 1: Assign the Alleles

•?
+65=-5;165
>-
<:-
;0-
,6415)5;
70-56;?7-
;6
5)4-
;0-
)33-3-:
5
;01:
+):-
/9--5
1: ,6415)5;
6=-9
69)5/-
:6
>-33
<:-

.69
/9--5
.<9
)5,
/
.69
69)5/-
.<9 A::1/5
7
;6
*-
;0-
.9-8<-5+?
6.

;0-
/9--5
.<9
)33-3- A::1/5
8
;6
*-
;0-
.9-8<-5+?
6.
/
;0-
69)5/-
.<9
)33-3-

Penguin Prof Helpful Hints: Solving Hardy-W

einberg ProblemsPenguin Prof Helpful Hints: Solving Hardy-Weinberg ProblemsPage 2

Step 2: Calculate q

The number of homozygous recessive individuals is q2, NOT q. To find q, take the square root of q2.

Step 3: Calculate p

Once you haveq,findingpis easy! The sum of the frequencies of both alleles must equal 1. Step 4: Use p and q to calculate the remaining genotypes I always suggest that you calculate q2even though that's what you started with. Realize that

96<5,15/
>133
/1=-
?6<
:31/0;3?
,1..-9-5;
=)3<-:
)5,
)33

/-56;?7-
.9-8<-5+1-:
4)?
56;
'%(

-8<)3

*-+)<:-
6.
;01:
;:
.15-

Penguin Prof Helpful Hints: Solving Hardy-W

einberg ProblemsPenguin Prof Helpful Hints: Solving Hardy-Weinberg ProblemsPage 3

That's it! Answer the questions:

1.9-8<-5+?
6.
,6415)5;
/9--5
)33-3-


 9-8<-5+?
6.
9-+-::1=-
69)5/-
)33-3-
   9-8<-5+?
6.
-)+0
/-56;?7-

A0646@?/6<:
,6415)5;





A0-;-96@?/6<:





A0646@?/6<:
9-+-::1=-





Need More Help?

Check out my video%0-
)9,? &-15*-9/
"915+173-
65
;0-
"-5/<15
"96.
(6<%<*-
+0)55-3
66, 3<+2

Penguin Prof Helpful Hints: Solving Hardy-W

einberg ProblemsPenguin Prof Helpful Hints: Solving Hardy-Weinberg ProblemsPage 4

Frequency Documents PDF, PPT , Doc

[PDF] 1 frequency how many channels

1. Engineering Technology

2. Electrical Engineering

3. Frequency

[PDF] a4 frequency minus 28

[PDF] ac frequency around the world

[PDF] across frequency range

[PDF] across frequency 中文

[PDF] across-frequency grouping

[PDF] adverbs of frequency exercices online

[PDF] adverbs of frequency exercises pdf

[PDF] adverbs of frequency exercises with answers

[PDF] allele frequency practice problems

12345 Next 200000 acticles