Hardy Weinberg Extra practice

g) As you observe the animals, you count 200 brown Phoberomys and 450 tan. Conduct a chi-square test to determine if your observations are significantly different from what you expect. Use your answers for questions d and f as your expected values.

• 100

• 99.2

• 105.5

• 109

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

In the year 2374, humans finally developed the technology necessary for time travels. You are a scientist interested in the population genetics of extinct animals. Taking advantage of this technological advance, you decide to go to the past 8 million years to conduct a field work in Venezuela to study a population of Phoberomys pattersoni, the world’s largest extinct rodent weighing approximately 700 kg (1500 lb) and looking vaguely like a giant guinea pig. The coat color of this rodent varies between tan (dominant) and brown (recessive). Assume the population is in Hardy-Weinberg equilibrium. You observed 336 tan Phoberomys and 64 brown Phoberomys during your study.

f) You make another trip to Venezuela and this time you observe 650 animals.

How many of these 650 animals would you expect to be brown, assuming the population is still in Hardy-Weinberg equilibrium?

• 546

• 234

• 192

• 104

Tags

NGSS.HS-LS3-3

In the year 2374, humans finally developed the technology necessary for time travels. You are a scientist interested in the population genetics of extinct animals. Taking advantage of this technological advance, you decide to go to the past 8 million years to conduct a field work in Venezuela to study a population of Phoberomys pattersoni, the world’s largest extinct rodent weighing approximately 700 kg (1500 lb) and looking vaguely like a giant guinea pig. The coat color of this rodent varies between tan (dominant) and brown (recessive). Assume the population is in Hardy-Weinberg equilibrium. You observed 336 tan Phoberomys and 64 brown Phoberomys during your study.

e) You make another trip to Venezuela and this time you observe 650 animals.

How many of these tan animals are homozygous for the dominant allele?

• 546

• 234

• 192

• 104

In the year 2374, humans finally developed the technology necessary for time travels. You are a scientist interested in the population genetics of extinct animals. Taking advantage of this technological advance, you decide to go to the past 8 million years to conduct a field work in Venezuela to study a population of Phoberomys pattersoni, the world’s largest extinct rodent weighing approximately 700 kg (1500 lb) and looking vaguely like a giant guinea pig. The coat color of this rodent varies between tan (dominant) and brown (recessive). Assume the population is in Hardy-Weinberg equilibrium. You observed 336 tan Phoberomys and 64 brown Phoberomys during your study.

d) You make another trip to Venezuela and this time you observe 650 animals.

How many of the 650 animals would you expect to be tan, assuming the population is still in Hardy-

Weinberg equilibrium?

• 546

• 234

• 192

• 104

Tags

NGSS.HS-LS3-3

In the year 2374, humans finally developed the technology necessary for time travels. You are a scientist interested in the population genetics of extinct animals. Taking advantage of this technological advance, you decide to go to the past 8 million years to conduct a field work in Venezuela to study a population of Phoberomys pattersoni, the world’s largest extinct rodent weighing approximately 700 kg (1500 lb) and looking vaguely like a giant guinea pig. The coat color of this rodent varies between tan (dominant) and brown (recessive). Assume the population is in Hardy-Weinberg equilibrium. You observed 336 tan Phoberomys and 64 brown Phoberomys during your study.

c) Of the animals you observed, how many were heterozygous?

• 546

• 234

• 192

• 104

Tags

NGSS.HS-LS3-3

In the year 2374, humans finally developed the technology necessary for time travels. You are a scientist interested in the population genetics of extinct animals. Taking advantage of this technological advance, you decide to go to the past 8 million years to conduct a field work in Venezuela to study a population of Phoberomys pattersoni, the world’s largest extinct rodent weighing approximately 700 kg (1500 lb) and looking vaguely like a giant guinea pig. The coat color of this rodent varies between tan (dominant) and brown (recessive). Assume the population is in Hardy-Weinberg equilibrium. You observed 336 tan Phoberomys and 64 brown Phoberomys during your study.

b) What is the allelic frequency of the dominant (tan) allele in the population?

• .84

• .16

• .4

• .6

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

In the year 2374, humans finally developed the technology necessary for time travels. You are a scientist interested in the population genetics of extinct animals. Taking advantage of this technological advance, you decide to go to the past 8 million years to conduct a field work in Venezuela to study a population of Phoberomys pattersoni, the world’s largest extinct rodent weighing approximately 700 kg (1500 lb) and looking vaguely like a giant guinea pig. The coat color of this rodent varies between tan (dominant) and brown (recessive). Assume the population is in Hardy-Weinberg equilibrium. You observed 336 tan Phoberomys and 64 brown Phoberomys during your study.

a) What is the frequency of the homozygous recessive genotype?

• .84

• .16

• .4

• .6

Tags

NGSS.HS-LS3-3

A population of 150 individuals has an allele frequency of 0.3 for the dominant allele (B) and a frequency of 0.7 for the recessive allele (b). Use the Hardy-Weinberg equation to determine the frequency of the genotype (bb).

• 0.09
• 0.42
• 0.49
• 0.21

The allele frequency of p=.20 What is the percentage of Heterozygous Dominant genotype?

• .80

• .04

• .32

• .64

Tags

NGSS.HS-LS4-3

The allele frequency of p=.20 What is the percentage of recessive genotype?

• .80

• .04

• .32

• .64