AP BIOLOGY

Previous
Next

EVOLUTION

HARDY WEINBERG EQUILIBRIUM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In the year 2788, humans finally developed the technology necessary for time travel. 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 field work in Brazil to study a population of organisms vaguely like a giant guinea pig. The coat color of the rodent varies between tan (dominant) and brown (recessive). Assume the population is in H-W Equilibrium. You observed 336 tan Ferbies and 64 brown Ferbies during your study.Of the animals you observed, how many were heterozygous?
A
400
B
192
C
64
D
10
E
144
Explanation: 

Detailed explanation-1: -When a population is in Hardy-Weinberg equilibrium for a gene, it is not evolving, and allele frequencies will stay the same across generations. There are five basic Hardy-Weinberg assumptions: no mutation, random mating, no gene flow, infinite population size, and no selection.

Detailed explanation-2: -Applications of the Hardy Weinberg Principle The law offers a prototype which is typically used as a point of origination to study the population genetics of diploid entities, which fulfil the fundamental assumption of random mating, large population, no mutation, migration or selection.

Detailed explanation-3: -The Hardy-Weinberg equilibrium is a principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.

Detailed explanation-4: -The Hardy-Weinberg model states that a population will remain at genetic equilibrium as long as five conditions are met: (1) No change in the DNA sequence, (2) No migration, (3) A very large population size, (4) Random mating, and (5) No natural selection.

There is 1 question to complete.
Previous
Next