1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Contact [7]
3 years ago
6

The presence of freckles is due to a dominant allele. Four percent of the individuals in a particular population lack freckles.

Use the Hardy-Weinberg formula to calculate the percentage of individuals in this population who are homozygous dominant for freckles.
a) 32%
b) 80%
c) 64%
d) 20%
e) 4%
Biology
1 answer:
zaharov [31]3 years ago
7 0

Answer:

Option C

Explanation:

Allele for dominant freckle trait is "F"

Allele for recessive no freckle trait is "f"

Given -

Population lacking freckles  = 4%

As per Hardy Weinberg's equilibrium equation

p represents the frequency of dominant allele in a given population and p^2 represents the frequency of dominant individuals in a given population

Like wise

q  represents the frequency of recessive allele in a given population and q^2 represents the frequency of recessive individuals in a given population

q^2 = 0.04\\q = 0.2

Frequency of dominant allele = 1- 0.2\\= 0.8

Frequency of homozygous recessive individual

q^2 = 0.4

Frequency of homozygous dominant individual

q^2 = 0.40.8^2\\= 0.64

Option C is correct

You might be interested in
Do you think you would ever want to use a solar oven? Why or why not?
Afina-wow [57]

Answer:

I would.

Explanation:

Saving the environment is really important. The only downside would be only being able to use it during the day.

3 0
3 years ago
Imagine you were going to model the flow of energy in an ecosystem and the flow of elements in the ecosystem using a diagram. Co
klemol [59]
Almost all the energy in ecosystems comes from the sun.<span>Energy is captured by producers and then passed in a linear progression from one trophic level to the next. At each level, much of the energy escapes the ecosystem as heat. Unlike this one-way flow of energy, matter is recycled within and between ecosystems. Elements pass from one organism to another and among parts of the non-living environment through closed loops called biogeochemical cycles.</span>
5 0
3 years ago
Semipermeable cell membranes are made of phospholipids that form a bilayer. What major benefit does this arrangement of the memb
Andrej [43]

Answer:

The correct answer would be c. The cell has a greater level of structural support.

Phospholipds are the structural units of a cell membrane. They are consist of two components; hydrphobic lipids and hydrophylic polar heads.

They make a bilayer structure in which polar heads are in contact with water and lipid part are embedded within the layer.

  • Lipid bilayer gives the rigidity or shape to the cell.  
  • It isolates the cell from the sorroundings.
  • It is semi-permiable in nature and thus prevents or control the movement of substances across the membrane.
  • Being liquid in nature, the cytoplasm would have dispersed in the surrounding in absence of cell membrane.

Hence, most appropriate choice would be c. The cell has a greater level of structural support.

5 0
3 years ago
Read 2 more answers
A butterfly can mate with another butterfly to produce fertile offspring only if the two butterflies belong to the same
Dmitriy789 [7]
D is the best answer because c and b have nothing to do with mating and being in the same family doesn't matter
7 0
3 years ago
Read 2 more answers
An atom of an element that has a different number of neutrons that the standard atom of that element
igomit [66]
That would be an isotope
4 0
3 years ago
Other questions:
  • what will most likely happen if the hydrogen pump protein in photosystem II does not move enough H+ ions into the thylakoid
    15·2 answers
  • An individual's pulse may be found in multiple locations throughout the body. when might it be necessary to check the pulse of a
    11·1 answer
  • What would happen if heat were not trapped in Earth’s atmosphere?
    11·2 answers
  • The cell cycle involves the growth, replication, and division of a eukaryotic cell. Mitosis most directly plays a role in
    7·2 answers
  • What flower only blooms every 100 years?​
    7·2 answers
  • What shape is the best for an earthquake resistant structure and why?
    5·2 answers
  • What form of energy does a leaf represent?
    5·1 answer
  • How do the bamboo leaves at the top of the plant get the water they need from the bamboo roots?
    11·2 answers
  • What data would meselson and stahl have expected if dna replication was conservative, rather than semiconservative?.
    14·1 answer
  • Acquired specific immunity involves the response of:_______
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!