A moth's color is controlled by two alleles, G and g, at a single locus. G (gray) is dominant to g (white). A large population of moths was studied, and the frequency of the G allele in the population over time was documented, as shown in the figure below. In 1980 a random sample of 2,000 pupae was collected and moths were allowed to emerge. Assuming that the population was in Hardy-Weinberg equilibrium for the G locus, what percentage of the gray moths that emerged in 1980 was heterozygous? (The Answer is 67%, can you please explain why it's 67%? thank you!!)
Answers
Answer:
67%
Explanation:
When taking random samples from a population, the observed numbers are not always as the expected ones. The difference is by chance, instead of 50% heter0zyg0us, the sample included 67%.
--------------------------
Available data:
- Moths' color ⇒ diallelic gene
G allele → dominant → Codes for greyg allele → recessive → Codes for white- f(G) 1960 = 0.8
- f(G) 1965 = 0.7
- f(G) 1970 = 0.6
- f(G) 1975 and 1980 = 0.5
- 1980 ⇒ N = 2000 pupae
- Population in H-W equilibrium
Hardy-Weinberr equilibrium,
Assuming a diallelic gene, p and q are the allelic frequencies in a locus and represent the allelic d0minant or recessive forms. The gen0typic frequencies after one generation are p² (H0m0zyg0us d0minant), 2pq (Heter0zyg0us), q² (H0m0zyg0us recessive). Populations in H-W equilibrium will get the same allelic frequencies generation after generation.When adding the allelic frequencies of a population in H-W equilibrium, the result should be 1, this is p + q = 1.In the same way, when adding the genotypic frequencies, the result should also equal 1, this is p²+ 2pq + q² = 1In this problem we assume that the population is under H-W equilibrium, and we know that p = 0.5.
Considering that p + q = 1, then by clearing the equation, we get the value of q = 0.5
Finally, we know that the genotypic frequency of the heter0zygous genotype is 2pq, so,
F(Gg) = 2pq = 2 x 0.5 x 0.5 = 0.5 = 50%
Now, among the options in the problem, there is not 50% but others. One of them, and the closest to 50%, is 67%.
The chart reflects that through the years, the moth's populations stabilized. Both alleles were favored, and their frequencies got to be equal to each other -0.5-. So there is a high probability of getting heter0zyg0us individuals in the population -50%-, more than any of the h0mzyg0us ones -25%-.
However, in a natural population, the amount of h0m0zyg0us and heter0zygous individuals observed is not always the same as the expected ones. This fact happens especially when there are random samples.
In this experiment, the researcher took 2000 pupae, but they did not know their genotype. They just took them randomly. Even though the population is in H-W equilibrium, when sampling, the researcher took more heter0zyg0us individuals than the expected ones. It does not mean that the population is not under H-W equilibrium. It just means that by chance, more heter0zyg0us were selected.
So what you need to do in these situations, is to analyze your problem and the provided information, and think about the most feasible answer.
In this case, the expected number is 50% heter0zyg0us. The closest option is 67% and the most feasible. So that would be the answer.
------------------------
Related link: https://brainly.com/question/24618345
Related Questions
Sustainable development and land use planning are most concerned with _______.
Answers
Answer:
improving long term city health
For each of the following processes, identify the part of the chloroplast in which it takes place. Light-dependent reactions Light-independent reactions Sun’s energy absorbed Sugars produced
Answers
Answer:
It is convenient to divide the photosynthetic process in plants into four stages, each occurring in a defined area of the chloroplast: (1) absorption of light, (2) electron transport leading to the reduction of NADP+ to NADPH, (3) generation of ATP, and (4) conversion of CO2 into carbohydrates (carbon fixation).
Explanation:
PLZ HELP IF RIGHT I WILL GIVE U BRAINLIST!!
Due IN 10 MINS!!!
Answers
Answer:
Hey! New magazine out now! :)
Explanation:
describe a specific exmaple of postive action that reduce human imapct on land?
Answers
Answer:
Human activities contribute to climate change by causing changes in Earth’s atmosphere in the amounts of greenhouse gases, aerosols (small particles), and cloudiness. The largest known contribution comes from the burning of fossil fuels, which releases carbon dioxide gas to the atmosphere. Greenhouse gases and aerosols affect climate by altering incoming solar radiation and out-going infrared (thermal) radiation that are part of Earth’s energy balance. Changing the atmospheric abundance or properties of these gases and particles can lead to a warming or cooling of the climate system. Since the start of the industrial era (about 1750), the overall effect of human activities on climate has been a warming influence. The human impact on climate during this era greatly exceeds that due to known changes in natural processes, such as solar changes and volcanic eruptions.
Why are sodium ions differentially permeable?
Answers
Answer:
In most cases, an ion channel is permeable only to specific types of ions (for example, sodium and potassium but not chloride or calcium), and sometimes the permeability varies depending on the direction of ion movement.
Model: Use the Punnett squares below to model each parent combination. After filling in each Punnett square, predict the percentages of black and white offspring.
Answers
Complete question, Answer, and Explanation:
Due to technical problems, you will find the complete question, answer, and explanation in the attached files
What is the main difference between primary succession and secondary succession?
Answers
Answer:
Primary succession in the first initial establishment of an ecosystem on a new layer of terrain (usually rock), whereas secondary succession is a re-establishment of an ecosystem OR simply any establishment of an ecosystem on a rock which was previously inhabited.
Explanation:
Primary succession is the very first establishment of an ecosystem on a new layer of terrain (usually rock) which was previously uninhabited by living organisms. Secondary succession can be thought of as a re-establishment of ecosystems on a terrain/rock which was previously inhabited but is no longer due to an ecological or environmental disruption.
Hope this helped!
Answer:
Primary succession is the progress of plants growing on bare lands, like a bulldozed area, a landslide, or even a solid rock. (Or a volcano.)
On the rock, lichens start, make a little soil, mosses start in the soil, make a little more, Spikemoss (a vascular plant) starts, traps and makes more soil, making a place for dry land plants, which trap and make more soil, eventually, after a very long time, giving rise to a mature forest over rock. The only way to tell that rock is the substrate is the forest composition
Secondary is from a place that has had a forest, and is either burned, farmed, or cut. Plants start very quickly from seeds, roots, tubers, and reforestation can take as little as 20 years, and maturity as little as 75.
Explanation:
Hope this helps
Two atoms have the same number of protons but different numbers of neutrons. These atoms are:
A. electrons
B. isotopes
C. molecules
D. radiation
tysm!
Answers
Answer:
Isotopes
Explanation:
If two atoms have different numbers of protons, they are different elements. However, if two atoms have the same number of protons, but different numbers of neutrons we refer to them as isotopes. Two terms we use to identify nuclides (isotopes) are atomic number and mass number.
What are the differences between male and female chickens?
Size of feathers
Size of comb and wattles
Size of toes
Size of spurs
Size of beaks
Color of birds
Tempanic Membranes
Answers
What four legged relative of snakes was used to compare genomes?
Answers
Answer:
Lizards / Reptiles
(Scientific four-legged snake is: Tetrapodophis)
Explanation:
couldn't add answer ^^ ignore comment :-)
What’s the answer for this
Answers
In your own words summarize each step of the carbon cycle. Each step should include a 2-3 sentence explanation. Include an image of the carbon cycle showing the steps discussed in your summary.
Answers
[tex]what \: is \: the \: economic \: importance[/tex]
[tex]of \: bacteria \: in \: agriculture \: [/tex]
??????
If u know the answer write down no links( I will report them )
Answers
why are rabbits a good organism to study in terms of population ecology?
Answers
Answer:
because they reproduce often and when they do they provide many offspring
Answer: ecologists study the interactions between organisms and their environment, ... In other words, this model shows the growth of a population in an ideal ...
Explanation:
In other words, this model shows the growth of a population in an ideal ...
A scientific study demonstrated that rat mothering behavior impacts the stress response in their pups. Rats that were born and grew up with attentive mothers showed low activation of stress-response genes later in life, while rats with inattentive mothers had high activation of stress-response genes in the same situation. An additional study that swapped the pups at birth (i.e., rats born to inattentive mothers grew up with attentive mothers and vice versa) showed the same positive effect of attentive mothering. How do genetics and/or epigenetics explain the results of this study
Answers
Answer and Explanation:
Regarding genetics, the results of the study show that the mother's genetic material does not influence the behavior of rats in times of stress or in the biological responses of rats to these stressful moments. This is because the mice inherited their mothers' genes, but did not show the same results in a stressful situation when they were raised with different mothers.
Regarding epigenetics, however, we can see that the mothers' behavior in relation to the care of rats managed to provoke epigenetic changes that prevented or stimulated the expression of genes linked to stress, in these rats. The rats that were raised with attentive mothers showed a low expression of stress-linked genes, regardless of the biological mother they had. In addition, it is possible to notice that this modification is permanent, since the rats presented this same type of response throughout their lives.
Name 4 systems that perform the process nutrient absorption
Answers
Answer:
The digestive system does that know just search up what is in the digestive system in gogle
Explanation:
What environment are affected by animals cloning
Answers
Answer: well when an animal clones another animal I could hurt the live stock. My question is are talking about the environment they live in?
Explanation:
What comes next in a super giant's life cycle?
Answers
The main function of photosynthesis is to produce food plan however some thing else happens during photosynthesis that supports animals life which part of the illustration shows the part of photosynthesis that is essential to animals but not related to food
Answers
In a population with 100 rabbits there are 16 that are albino, with two
recessive genes for albinism. In this population, what is the gene
frequency for the albino allele?
16
16
0.4
0.84
Answers
Answer:
The gene frequency for the albino allele is 16%.
Explanation:
Given that in a population with 100 rabbits there are 16 that are albino, with two recessive genes for albinism, to determine, in this population, what is the gene frequency for the albino allele, the following calculation must be performed:
16/100 = X
0.16 = X
1 = 100
0.16 = X
0.16 x 100 = X
16 = X
Therefore, the gene frequency for the albino allele is 16%.
Using what you know
about Hox genes,
hypothesize what may
have happened to the fruit
fly on the right.
Answers
There are different kinds of mutations. What can happened to the fruit
fly on the right is that there will be Homeotic mutations in the fruit flies.
What takes place to the body of a fruit fly if the Hox gene is altered?When there is Homeotic mutations in fruit flies, Homeotic genes are said to be the reason or the option that is used in knowing the identity of some specific segments or structures of the body.
If an homeotic genes is said to be inactivated or when expressed in an unusual part of the body due to mutations, it may make the body segments to take on new form.
In Drosophila, that is the fruit fly, a Hox mutation can create a lot of changes such as an extra pair of wings, new a set of legs, etc.
Learn more about Hox genes from
https://brainly.com/question/21690388
The coral reef has specific temperatures and sunlight each day, as well as many types of corals and fish that live there. What level of organization is the coral reef?
A. Organism
B. Population
C. Community
D. Ecosystem
Answers
Answer:
D Ecosystem
Explanation:
Answer:
dd
Explanation:
WHAT IS THE POWERHOUSE OF THE CELL?
this is for a friend who answered correctly previously. please just don't put anything funny and let them answer it pleaseeeee.
Answers
Explanation:
mitochondria are often referred to as the powerhouse of the cell
what is meanustration pariod
Answers
Answer:
menstration period is when a woman's body releases tissue it no longer needs so then the girl bleeds (usually for 7 days) and then every month or so (different for all girls) the uterus lining gets thicker to prepare for a fertilized egg if the woman becomes pregnant. :)
what is the other name of iron oxide
Answers
Answer:
Iron(III) oxide or ferric oxide
Explanation:
PLSSSSSSSSSS HELPPPPPPPP PLSSSS HELPPPP I NEED HELP PLS NO LINKS PLSSS I REALLY NEED HELPPPP
SHORT ANSWER QUESTION: Include a Claim, Evidence, Explanation, and Conclusion for full credit. Rubric is include at top of quiz.
In the past, fifty percent of jaguars in the Amazon jungle had large strong jaws and fifty percent had weak jaws. There was a change in their environment leaving only hard-shelled reptiles like turtles available for the jaguars to eat. Below is a graph showing the allele frequency in the population of jaguars over the next 5 generations.
Construct an argument based on evidence to determine which allele represents the large strong jaws and which allele represents the weak jaws.
Answers
Answer:
Allele G represents the strong jaw, and allele g represents the weak jaw. This is because as the generations go by, allele G’s population increases, but allele g’s population decreases. If hard shelled animals are the only foods available to them, you would need a strong jaw to eat them. This means that allele g wouldn’t be able to eat these reptiles, so their population would decrease from lack of food.
Explanation:
The rising sea level could be a
consequence of
A. the desalination of water.
B. stormwater runoff.
C. global warming
D. glaciation
Answers
explanation: A warming climate can cause seawater to expand and ice over land to melt, both of which can cause a rise in sea level.
The digestive system takes in nutrients and breaks down these nutrients for energy. The solid waste products that are generated during digestion are removed from the human body by the
A.
respiratory system.
B.
circulatory system.
C.
endocrine system.
D.
excretory system.
PLZ HELP KAJDEBFKAJBGKGEKJB QUICKKK
Answers
I need help please and thank you
Answers
Explanation: Because desert plants need to store water for long durations. Plants, for example : the Saguaro Cactus, have a stretchy skin, with a spongy layer inside which enables the plant to distribute and store water for long durations.
:) Hope this helps
What changes in energy occur when the bowling ball strikes the pins?
Answers
Answer:
please give me brain list and follow
Explanation:
The bowling ball's energy of motion is about to cause a change. ... The collision with the bowling ball changes that. The ball strikes the pins, and some of the ball's energy of motion transfers to the pins. This makes the pins gain motion energy and leaves the ball with less motion energy.