Guided hardy weinberg
Presentation
•
Biology
•
8th Grade
•
Easy
Standards-aligned
Renata Stojanova
Used 39+ times
FREE Resource
5 Slides • 15 Questions
1
States that a population is NOT evolving and is in a state of balanced equilibrium.
Uses two formulas:
2
◦ p = frequency of dominant allele in a population (A)
◦ q= frequency of recessive allele in a population (a)
◦ p2 = frequency of the homozygous dominant individuals
in a population (AA)
◦ 2pq = frequency of the heterozygous individuals in a
population(Aa)
◦ q2 = frequency of the homozygous recessive individuals
in a population(aa)
ALLELE FREQUENCIES
GENOTYPIC/PHENOTYPIC
FREQUENCIES
You are always working with decimals that add up
to 1!
3
4
Guide:
1. Identify what is given.
2. Try to start with the recessive side (q or q^2).
3. Solve for q.
4. Solve for p by using the formula
5. Use the formula
if needed.
6. Provide answer in appropriate terms.
5
Multiple Choice
In the Hardy-Weinberg Equation, p is the frequency of what?
The recessive allele
the dominant allele
the recessive genotype
the dominant genotype
6
Multiple Choice
In the Hardy-Weinberg Equation, q is the frequency of what?
The recessive allele
the dominant allele
the recessive genotype
the dominant genotype
7
Multiple Choice
The recessive allele
the dominant allele
the recessive genotype
the dominant genotype
8
Multiple Choice
In the Hardy-Weinberg Equation, p2 is the frequency of what?
The recessive allele
the dominant allele
the recessive genotype
the dominant genotype
9
Multiple Choice
p2
2pq
q2
p2 + 2pq
10
Multiple Choice
Which Hardy-Weinberg equation represents the genotype frequencies in a population?
p + q = 1
p2 + 2pq + q2 = 1
p2 + pq2 + q2 = 1
p + 2pq + q3 = 1
11
Multiple Select
A rather large population of foxes has 555 individuals with tan fur and 390 individuals with red fur. Assume that red is recessive.
What should you try to start with?
p
q
q2
p2
12
Multiple Choice
A rather large population of foxes has 555 individuals with tan fur and 390 individuals with red fur. Assume that red is recessive.
If you started with q2 what do you find next?
p
q
q2
p2
13
Multiple Choice
A rather large population of foxes has 555 individuals with tan fur and 390 individuals with red fur. Assume that red is recessive.
Now that you have q, what should you solve for next?
p
q
q2
p2
14
Part/total
15
Open Ended
A rather large population of foxes has 555 individuals with tan fur and 390 individuals with red fur. Assume that red is recessive. Calculate the following:
1. The frequencies of each allele.
2. The frequencies of each genotype.
3. How many foxes are of the heterozygous genotype?
16
Multiple Choice
If the frequency of recessive allele is 0.2, what is the frequency of the homozygous recessive individuals?
0.04
0.16
0.4
0.8
17
Multiple Choice
0.09
0.42
0.49
0.21
18
Multiple Choice
The allele frequency of p=.20 What is the frequency of the heterozygous genotype?
.80
.04
.32
.64
19
Multiple Choice
The allele frequency of p=.20 What is the frequency of the recessive genotype?
.80
.04
.32
.64
20
Multiple Choice
A population's recessive allele frequency 25%. What is the frequency of the Homozygous Dominant genotype?
.5625
.3750
.0625
.25
.5
States that a population is NOT evolving and is in a state of balanced equilibrium.
Uses two formulas:
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