HELP PLEASE!

In pea plants, petal coloration of has a complete dominance relationship where purplepetals are dominant over white petals. There are 276 plants, 273 have purple petals.Find: the frequency of the dominant and recessive alleles and the frequency ofindividuals with the dominant, heterozygous, and recessive genotype.

Answers

Answer 1

Answer: See below

Explanation:

In the selected pea plant population, there are total 276 plants out of them 273 have purple petals.

Remaining 276 - 273 = 3

q²= 3/276

q²= 0.010

q = 0.1

p + q = 1

p = 1 - 0.1

p = 0.9

Therefore:

Homo-zygous dominant = p² = 0.9×0.9 = 0.81

Hetero-zygous dominant = 2pq = 2×0.9×0.1 = 0.18

Homo-zygous recessive = q² = 0.1×0.1 = 0.010


Related Questions

Your New Year's resolution is to drastically reduce the amount of cholesterol in your diet by eating less meat and more fruits and vegetables. After a few months, your liver will respond by producing ______ cholesterol.

Answers

After a few months of eating less meat and more fruits and vegetable, the liver will respond by producing more cholesterol.

What is body homeostasis?

The term body homeostasis makes reference to the internal equilibrium (homeostasis) of the body.

Body homeostasis may involve the production of certain substances when they are not consumed from the diet.

In this case, it is possible to increase cholesterol levels by having certain healthy habits (food habits).

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It is spring in New York City and Washington, D.C. The temperatures in New York City are well above freezing, while a thunderstorm is expected in Washington. Which forms of precipitation would you predict in these two cities under these conditions?

a Rain in New York City and hail in Washington, D.C.

b Sleet in New York City and rain in Washington, D.C.

c Snow in New York City and hail in Washington, D.C.

d Rain in New York City and sleet in Washington, D.C.

Answers

Answer:

(C) - Snow probably in New York City and hail in Washington, DC

Answer the following in several complete sentences:

Explain how a psychologist would determine which eating disorder diagnosis should be applied to a particular individual based on his or her behaviors. Distinguish between binge-eating disorder, bulimia nervosa, and anorexia nervosa. (6 points)

Answers

Psychologist can determine eating disorder diagnosis via  behaviors through mood swings, way they eat, character displayed etc. The eating disorders that can be diagnose using the behavior of the patients are:

Other behaviors includes:

People forms schedules or rituals that gives them room for binging and purgingPeople are desperate to  exercise even when it not convenient for them, etc.

Anorexia Nervosa is characterized by:

The patient always insist they are overweight even when they are thin.Do not like taking food at all. There is restrictive food intake via dieting or fasting.Exercise too much.Always Bingeing.They self-induced themselves to vomiting so as to get rid of food.

The binge-eating disorder is  characterized by:The patient eat plenty food at once.Binge regularly.Patient do not feel like stopping when eating.Stress or emotional eating.The person eats  large amounts without ever feeling hungryWhen the person feels guilty or disgust about themselves.

The  bulimia nervosa disorder is characterized by:The person is often engage in binge eating.There is often compensatory purging.There is constant Purging and also involves vomiting, etc.

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Explain how the number of chromosomes per cell is cut in half during meiosis in which the diploid parent cell produces haploid daughter cells.

please help short answer, please 50 points please don't copy my life depends on this

Answers

It happens through 3 stages

InterphaseMeiosis 1Meiosis 2

In Meiosis one the cell produces diploid daughter cells by combining homogeneous and heterogeneous chromosomes.

In Meiosis two these diploids again tear apart to produce haploid daughter cells

describe five different breath sounds that may be heard when you check a client's respiration​

Answers

1. Rales. Small clicking, bubbling, or rattling sounds in the lungs. They are heard when a person breathes in (inhales). They are believed to occur when air opens closed air spaces. Rales can be further described as moist, dry, fine, or coarse.

2. Rhonchi. Sounds that resemble snoring. They occur when air is blocked or air flow becomes rough through the large airways.

3. Stridor. Wheeze-like sound heard when a person breathes. Usually it is due to a blockage of airflow in the windpipe (trachea) or in the back of the throat.

4. Wheezing. High-pitched sounds produced by narrowed airways. Wheezing and other abnormal sounds can sometimes be heard without a stethoscope.

5. crackles (a high-pitched breath sound)

Eye color , hair color , and skin color often vary from person to person and even witch in family , one explanation is that

Answers

Answer:

Explanation:

The color of our hair, skin, and eyes is determined by the same thing: the amount of pigment they have. The pigment that causes dark hair, skin, and eyes is called melanin. Melanin is made in special cells in the body called melanocytes.

Why does the moon revolve around the earth?

Answers

Answer:

Gravitational forces.

Explanation:

The same reason the earth revolves around the sun, its all thanks to gravity!

-I hope this answers your question!

P
What type of inheritance does this pedigree show?
I
1
2
II
2
3
4
5
6
III
1
2
3
4
5
6
IV
1
2
O Dominant
Recessive
Could be dominant or recessive

Answers

Answer:

1.0000.000 and keep up the work ok goood job buddy and study ok you and your body

Explanation:

d

1.You have an unknown piece of matter in front of you that you believe to be a piece of bark from a tree. First, how would you determine if the matter was organic or not? Second, what are two kinds of tests you could perform to indicate the material is plant matter rather than an animal?
2.You recently adopted a cat/puppy from a local shelter. What are some examples of at least THREE phenotypes it might have inherited from its parents, and what is at least ONE example of a genotype it might have inherited that ISN’T also a phenotype?

3.Think about your knee as a body part consisting of skin, ligaments, muscle, and nerve endings. If each of these components are epithelial tissue, connective tissue, muscle tissue, and nervous tissue respectively, then what would you say are the defining characteristics of each kind of tissue? What are the relevant parts of your skull as a whole that would fit each tissue type?
4.Based on the information in the unit and your own knowledge of biology, what are some examples of enzymes your body produces/parts of your body that use enzymes? What about hormones (hint: almost any part of your body that affects your mood is an example of a hormone!)?
5.When you drop oil into cup of water, why does it hold together instead of breaking up in the water? Name at least three common substances which are examples of lipids that relate to the following areas of life: driving, eating, and your own body.

Answers

Matter is organic if it has carbon atoms present in it.The two tests include photosynthetic and postembryonic tests.

The phenotypes include the following:Color of furSize of tailColor of eyes

What is Phenotype?

This refers to the physical and observable characteristics of an organism.

The genotype for having a white fur is an example in this scenario.The defining characteristics of each kind of tissue is based on their components and functions.The skull has bones, blood vessels and nerves which would fit each tissue type.The enzyme pepsin is produced in the stomach. Testosterone is a hormone produced in the male reproductive system.

Oil doesn't have any polar part and so for them to dissolve in water resulting in them floating.

The three common substances which are examples of lipids include:

FatsOilsWaxes

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Splitting apart a large atom nucleus into two or more smaller atoms describes what
energy type?
Nuclear energy
Chemical energy
Thermal Energy
Electrical energy

Answers

The answer for the problem is Nuclear Energy.

3. What charts, tables, or drawings would clearly show what you have learned in this lab? lab of modeling water erosion
Each chart, table, or drawing should have the following items:
a. An appropriate title
b. Appropriate labels

Answers

Answer:

appropriate labels

Explanation:

to label everything correctly

Based on the information in the table, which of the following best explains why this bug population has changed since the introduction of the invasive plants?
o The bugs are unable to feed on native fruits.
Bugs with longer mouthparts have a survival advantage.
Bugs with smaller body lengths have a helpful adaptation.
o The bugs have started cross-breeding with a larger species.

Answers

The bug population has changed since the introduction of the invasive plants the bugs are unable to feed on native fruits.

Why the population of bug decrease?

The population of bug decrease because the invasive plants reduce the population of native plants on which the bug feed. If the food for the bug decreases then the population of the bug is also decreases.

So we can conclude that the bug population has changed since the introduction of the invasive plants the bugs are unable to feed on native fruits.

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The best explanation for the change in the bugs after the introduction of invasive plants is that bugs with longer mouthparts have a survival advantage.

What is natural selection?

Natural selection is the process by which individuals of a population that are better suited to their environment are more likely to survive and reproduce.

According to this question, a population of bugs have experienced an increment in the following features:

average length of mouthpartsaverage body length

This suggests that the bugs have become more adapted since the introduction of the invasive plants to enable them survive, hence, they developed longer mouthparts and body length.

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Helpp!! Pleaseee!!

I need two paragraphs explaining how carbon is transferred within and between organisms and the environment.

Answers

Answer:

Organisms play an important role in the carbon cycle in the following ways: Plants absorb carbon from the environment in photosynthesis and return it in respiration. Animals obtain their carbon by eating plants; they release carbon in respiration.

For example, in the food chain, plants move carbon from the atmosphere into the biosphere through photosynthesis. They use energy from the sun to chemically combine carbon dioxide with hydrogen and oxygen from water to create sugar molecules.Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement.

Explanation:

If green is dominant to yellow what is the genotype

Answers

Answer:

The dominant seed color is yellow; therefore, the parental genotypes were YY for the plants with yellow seeds and yy for the plants with green seeds.

Ostriches and gazelles feed next to each other. They both watch for predators and alert each other to danger. Since the visual abilities of the two species are different, they each can identify threats the other animal would not as readily see.

commensalism, parasitism, or mutualism

Answers

Answer: This would be an example of mutualism.

Explanation: Mutualism is when, in a certain situation, benefits both organisms. The gazelles and ostritches in this situation are both watching for predators and are making sure to alert each other to the danger that could spring nearby. Both of these animals can locate predators in different ways. Ostritches are capable of seeing predators from in the tall grasses, while the gazelles are able to hear predators with their great hearing. Together, these two creatures make a great defense. Both the gazelles and ostritches benefit. This is known as mutualism.

When a person has a stroke, blood leaks into the brain tissue. Which type of neuroglia cells would repair the damage?.

Answers

Answer:

white blood cells

Explanation:

which zone in the ocean is the most challenging to survive in?

Answers

Answer:

The Bathyal zone is the hardest to survive in.

Explanation:

Technically, the entire ocean is difficult to survive in. There's no oxygen and lots of scary ocean predators.

But the Bathyal zone, which is 1000 - 4000 meters below the surface of the ocean has no sunlight, making most of the sea creatures there have no eyes. Because this zone is so dark, with little food to survive in, fish don't hang out here.

(I suggest just staying home)

Which of the following results when homologous chromosomes cross over in meiosis?
Two sister chromatids get tangled, resulting in one re-sequencing its DNA.
DNA repair machinery alters maternal alleles so they match paternal ones
Two sister chromatids exchange identical pieces of DNA.
Corresponding segments of non-sister chromatids are exchanged.

Answers

When homologous chromosomes cross over in the process of meiosis, the corresponding segments of the non-sister chromatids are exchanged. Thus, the correct option is D.

What is Crossing over?

Meiosis is the process of cell division in which the chromosomal content of the cell reduces to half. This division is also known as reductional division. Meiosis is divided into two parts: Meiosis I and Meiosis II.

Meiosis I is divided into four phases which are Prophase I, Metaphase I, Anaphase I, and Telophase I. Prophase I is further divided into five stages which are Leptotene, Zygotene, Pachytene, Diplotene, and Diakinesis. Crossing over of chromosomes takes place during pachytene stage.

Crossing over or the chromosomal crossover is the exchange of the genetic material during the process of sexual reproduction between the two homologous chromosomes' non-sister chromatids which results into the formation of recombinant chromosomes.

Therefore, the correct option is D.

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#SPJ2

what dose the word milestone mean

Answers

Answer:

it is a stage in life

Explanation:

because it shows how one has progressed or developed

WILL GIVE BRAINLIEST!!
Which research method would be most appropriate for investigating the relationship between the number of hours teenagers sleep and the amount of caffeine consumed on a daily basis?

Case study
Experiment
Laboratory observation
Naturalistic observation
Survey

Answers

Answer:

Survey

Explanation:

Because if you think about it carefully you really cant observe it. Your main goal is to compare them and with that we need a survey to get the data from both sides. Leaving us with the Survey

Explain why cellular respiration releases energy as an overall chemical reaction

Answers

Cellular respiration releases stored energy in glucose molecules and converts it into a form of energy that can be used by cells. Energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate).

Answer:

In cellular respiration, electrons from glucose move gradually through the electron transport chain towards oxygen, passing to lower and lower energy states and releasing energy at each step. The goal of cellular respiration is to capture this energy in the form of ATP

In other words:

Cellular respiration releases stored energy in glucose molecules and converts it into a form of energy that can be used by cells.

hope it helps x

What information did you include in your response? Check all that apply.

Each person’s DNA is unique.

Scientists use variable regions in DNA to create a DNA profile.

DNA samples can be taken from blood, bone, hair, or other body tissues and
products.

DNA from a crime scene can be compared to DNA from a suspect.

DNA typing can be used to solve old cases.

Answers

Answer:

you didn't teach by teachers

A female mosquito can produce 50-500 offspring in a two-week period of time. This rapid reproduction can also result in fast
evolution for this small insect species. For example, pesticide resistance occurs rapidly in insects, including mosquitos. Insecticides
that were once effective at eradicating mosquito populations are no longer effective. Which component of natural selection is
Likely playing a role in this rapid evolution for mosquitos?
A)
Mosquitoes pass only advantageous traits on to their offspring during
reproduction. This ensures increased survival and reproduction.
B)
Mosquitos produce more offspring than can survive in their lifetime.
Offspring are varied genetically, with differential survival and reproduction.
Mosquitoes that learn to avoid pesticide exposure can pass that
information on to offspring. This increases the survival of those offspring
as well.
D)
Mosquitos have the ability to detect areas with high pesticide loads and
can avoid those areas. This allows mosquitos to survive and reproduce with
more success.

Answers

Mosquitos produce more offspring than can survive in their lifetime.

Offspring are varied genetically, with differential survival and reproduction.

What are mosquitoes?

Mosquitoes are ectoparasites, which live on the blood of different animals.

They suck blood from the skin of animals and leave red spots, which are itchy.

Mosquitoes lay their eggs in water and live in dirty, moist, dark places.

They are also responsible to cause malaria in humans.

Thus, the correct option is B.

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Another plant is said to be heterozygous for flower color. What does this mean?

Answers

Answer:

Depending on how the gene works, it might result in an orange flower or in a flower that’s just yellow or in one that’s just red—but with the potential to have offspring of a different color. Such a flower would be said to be heterozygous for flower color, because it’s got a copy of one yellow allele and one red allele.

Explanation:

What evidence did Galileo provide to support Copernicus's heliocentric model? Check all that apply.
Galileo determined the shape of each planet's orbit by a mathematical method called triangulation from different
points on Earth's orbit.
Galileo created a model showing the epicycles of the planets, which explained retrograde motion.
Galileo used a telescope to study the moons orbiting Jupiter. This showed that Earth was not the center of all
things.
U Galileo explained that people did not see stellar parallax because the stars were simply other suns that are very
far away.
Galileo discovered the phases of Venus, proving that at least one planet orbited the Sun.
Intro
Done

Answers

Answer:

- Galileo used a telescope to study the moons orbiting Jupiter. This showed that Earth was not the center of all things.

-Galileo discovered the phases of Venus, proving that at least one planet orbited the Sun.

Explanation:

Galileo discovered evidence to support Copernicus’ heliocentric theory when he observed four moons in orbit around Jupiter. Beginning on January 7, 1610, he mapped nightly the position of the 4 “Medicean stars” (later renamed the Galilean moons). Over time Galileo deduced that the “stars” were in fact moons in orbit around Jupiter.

At about the same time, German mathematician Johannes Kepler was publishing a series of laws that describe the orbits of the planets around the Sun. Still in use today, the mathematical equations provided accurate predictions of the planets’ movement under Copernican theory. In 1687, Isaac Newton put the final nail in the coffin for the Aristotelian, geocentric view of the Universe. Building on Kepler’s laws, Newton explained why the planets moved as they did around the Sun and he gave the force that kept them in check a name: gravity.

Hope this helps!
If you have any queries please ask.


Which effect does deforestation have on the carbon cycle?

Answers

Answer:

Deforestation facilitates one part of the carbon cycle, increasing the CO2 in the atmosphere. It also prevents forests from absorbing any further carbon by destroying the trees. It, therefore, inhibits this aspect of the cycle and leads to increased levels of this greenhouse gas in the atmosphere.

Explanation:

Critically discuss the scope of medical anthropology as a
transdisciplinary field of Social Science.

Answers

Medical anthropology deals with the study of human health using social approaches and structural model of society health and wellbeing.

What is medical anthropology?

Medical anthropology deals with research on health and society plan or program.

The study uses social approaches and structural model of society health and wellbeing such that culture, people and discipline are captured.

Therefore, Medical anthropology deals with the study of human health using social approaches and structural model of society health and wellbeing.

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Question 5

Fossils are actually formed from minerals in the exact shape of the original bone

True

False

Answers

Answer: True.

Explanation: I took the test on K12 and received an A.

Question 3

Which type of carbon is used in carbon dating?

C-14

C-13

C-12

C-11

Answers

Answer:

C-14

Explanation:

c-14 is used to identify spedciamen's age




In systemic circulation, a drop of blood that is [ Select ] ["poor in oxygen", "rich in oxygen"] in the [ Select ] ["right atrium", "left atrium", "right ventricle"] will first travel through the [ Select ] ["pulmonary semilunar valve", "aortic semilunar valve", "tricuspid valve", "bicuspid valve"] to reach the left ventricle. From there it will be pumped through the [ Select ] ["bicuspid valve", "pulmonary semilunar valve", "aortic semilunar valve", "tricuspid valve"] to reach the [ Select ] ["aorta", "pulmonary artery", "pulmonary trunk", "superior vena cava"] , which will branch into smaller arteries and arterioles. The blood leaving the arterioles will enter the capillaries surrounding the systemic tissues. The blood exiting the capillaries is [ Select ] ["rich in oxygen", "poor in oxygen"] and will first travel in venules, which will fuse into bigger veins. Eventually the blood will enter into the [ Select ] ["right ventricle", "left atrium", "right atrium", "left ventricle"] via either [ Select ] ["aorta or pulmonary artery", "pulmonary artery or pulmonary vein", "superior vena cava or inferior vena cava"]

Answers

In systemic circulation, a drop of blood that is rich in oxygen in the left atrium will first travel through the bicuspid valve to reach the left ventricle. From there it will be pumped through the aortic semilunar valve to reach the aorta which will branch into arterioles.

The blood exiting the capillaries is poor in oxygen and will first travel in venules, which will fuse into bigger veins. Eventually the blood will enter into the right ventricule via either superior vena cava or inferior vena cava.

What is Systemic circulation?

This involves blood vessels supplying oxygenated blood to and returning deoxygenated blood from the tissues of the body.

The appropriate processes and steps can be seen above.

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