In a certain population of rabbits, the ratio of the
phenotypes of brown fur and white fur is 1:1. What is the
frequency of the white fur trait in the rabbit population?
(1 point)
50%
1%
25%
100%
The frequency of the white fur trait in the rabbit population is 50%.
Kamar can assume that his mother's blood type must be either AB or B, because blood types AB are considered codominant.
The process by which organisms that are better adapted to the environment tend to survive and produce more offspring best describes natural selection.
The different variants of a trait available to a gene are called alleles.
One similarity between genetic drift and gene flow is that they both cause a change in the frequency of traits in a population.
To determine the frequency of the white fur trait in the rabbit population, we first need to understand the concept of phenotypes and the given ratio of brown fur to white fur.
Phenotypes refer to the observable characteristics or traits of an organism, such as its physical appearance. In this case, we are interested in the fur color of rabbits.
The ratio given is 1:1, which means that for every one rabbit with brown fur, there is also one rabbit with white fur.
To calculate the frequency of the white fur trait, we can divide the number of rabbits with white fur by the total number of rabbits in the population and multiply by 100 to express it as a percentage.
Since the ratio of brown fur to white fur is 1:1, each phenotype represents half of the population. Therefore, the frequency of white fur is 1 divided by 2 (representing 50%) or 0.5.
Converting it to a percentage, the frequency of the white fur trait in the rabbit population is 50%.
Kamar wants to know his mother's blood type. Kamar
knows that his blood type is AB and his father’s blood
type is heterozygous A. What can Kamar assume about
his mother’s blood type? (1 point)
Kamar’s mother must be either A or O
because blood type AB is considered
incomplete dominant.
Kamar’s mother must be AB because
blood type AB is inherited from one parent
Kamar’s mother must be O because the
recessive allele allows for Kamar to get
type A from his father
Kamar’s mother must be either AB or B
because blood types AB is considered
codominan
Which of the following best describes natural selection?
(1 point)
The process by which organisms that are
better adapted to the environment tend to
survive and produce more offspring.
The process by which organisms are
separated by chance events, such as
natural disasters, causing the frequency of
the population to change.
When a small sample of a population
leaves and establishes a new population.
When traits are determined by multiple
genes and environmental factors and
cannot be predicted using Punnett squares
The different variants of a trait available to a gene are
called (1 point)
polygenic traits.
phenotypes.
alleles.
genotypes.
What is one similarity between genetic drift and gene
flow? (1 point)
They are both caused by natural disasters,
such as hurricanes.
They both occur in a population by
chance.
They both cause a change in the
frequency of traits in a population.
They are both caused by the migration of
species.