Please help! the hardy-weinberg equation is an expression showing the frequencies of 100 percent of the alleles for a specific gene in a population. which statement must be true if biologists show that both p and q are not changing over a period of time?
A. predators are killing individuals with certain traits.
B. mutations are occurring in the population.
C. there is no migration in the population.
D.the population is very small.
Answers
C. There is no migration in the population.
The Hardy-Weinberg equation assumes that certain conditions are met for a population to be in genetic equilibrium, one of which is the absence of migration. Migration can introduce new alleles into a population or remove existing alleles, which would disrupt the equilibrium and cause changes in allele frequencies (p and q). Therefore, if p and q are not changing, it suggests that there is no migration occurring in the population.
Related Questions
Explain how bacteria develop resistance to antibiotics
Answers
Explanation:
Antibiotic resistance occurs when bacteria change in some way that reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections. The bacteria survive and continue to multiply causing more harm.
A population of beetles is currently 60 beetles at n=0. The beetle population has an intrinsic growth rate of 150% each generation. The environment can sustain a maximum population of 130 beetles. Find the population of the next three generations, 'y_1' ' 'y_2' and 'y_3' of beetles
Answers
The population of beetles in the next three generations, considering the carrying capacity, is y1 = 130 beetles, y2 = 130 beetles, and y3 = 130 beetles.
The population of beetles can be calculated using the formula: y = y0 * (1 + r)^n, where y is the population at a given generation, y0 is the initial population, r is the intrinsic growth rate (expressed as a decimal), and n is the number of generations.
Given that the initial population (y0) is 60 beetles and the intrinsic growth rate (r) is 150% (or 1.5), we can calculate the population for the next three generations.
For the first generation (y1), we substitute y0 = 60, r = 1.5, and n = 1 into the formula: y1 = 60 * (1 + 1.5)^1 = 60 * 2.5 = 150 beetles.
For the second generation (y2), we substitute y0 = 60, r = 1.5, and n = 2 into the formula: y2 = 60 * (1 + 1.5)^2 = 60 * 6.25 = 375 beetles.
For the third generation (y3), we substitute y0 = 60, r = 1.5, and n = 3 into the formula: y3 = 60 * (1 + 1.5)^3 = 60 * 15.625 = 937.5 beetles.
However, since the environment can only sustain a maximum population of 130 beetles, we need to consider the carrying capacity.
To find the population at each generation while considering the carrying capacity, we compare the calculated population with the carrying capacity and use the smaller value as the population.
For y1, the population is 150 beetles, which exceeds the carrying capacity of 130 beetles. Therefore, y1 = 130 beetles.
For y2, the calculated population is 375 beetles, which is also above the carrying capacity. Thus, y2 = 130 beetles.
For y3, the calculated population is 937.5 beetles, which is still above the carrying capacity. Therefore, y3 = 130 beetles.
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The steroid hormones cortisol and corticosterone are released by the _______ in response to the hormone _______ from the ______.
Answers
Answer:
The steroid hormones cortisol and corticosterone are released by the Adrenals in response to the hormone ACTH from the Hypothalamus.
Pls answer I will help you out. Need this for tmr
Answers
Answer:
uhh
Explanation:
sorry i dont know
Until fairly recently, average human life spans were less than 50 years. The major reason for this was that.
Answers
The major reason why the average human lifespans were less than 50 years until fairly recently is due to infectious diseases like tuberculosis, cholera and smallpox. It was also because the causes and cure of other major diseases like malaria and plague had not yet been found.
The lifespan of an entire population of people is known as the life expectancy, while the lifespan of an individual is a measure of the length of a person's life. Until recent years, causes, modes of transmission and treatment of common diseases were not known. Access to good medical care was difficult and hygienic conditions then were very poor. For example, it wasn't until the mid-1800's that people came to know that washing of hands could stop the spread of diseases, and until the late 1800's doctors didn't adequately wash their hands before performing a surgery.
Unhygienic conditions also made it easier for deadly infectious diseases like the Bubonic plague, the Black plague and the Spanish flu to spread, further reducing the already low life expectancy.
Today, thanks to good hygiene, better understanding of transmission of microbes, environmental sanitations, early immunizations and access to clean water, life expectancy has increased.
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which of the following statements is true? answer: which of the following statements is true? the process of diffusion can be reversed, but only if a strong force is applied. the process of osmosis can be reversed by altering the pressure gradient. the process of osmosis can occur in the absence of a selectively permeable membrane. the process of diffusion cannot take place without a membrane present.
Answers
The statement that is true is that the process of osmosis can be reversed by altering the pressure gradient (option B).
What is osmosis?Osmosis is the net movement of solvent molecules, usually water, from a region of lower solute concentration to a region of higher solute concentration through a partially permeable membrane.
Osmosis cannot occur without the presence of a semi-permeable membrane.
The principle behind osmosis is the concentration gradient i.e. concentration difference between external and internal environment.
However, the osmotic process can be reversed if the pressure gradient is changed or altered because it is the basis of the movement.
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In the Northern Hemisphere, the Coriolis effect makes winds
A. Blow to the west
B. Bend to the right of their motion
C. Bend to the left of their motion
D. Blow to east
Answers
Algae blooms are most often caused by
Answers
Answer:eutrophication
Explanation:
What
are pheromones? What evidence is there that pheromones may play a
role in the regulation of human menstrual cycles?
Answers
Answer: pheromones can be detected by the olfactory system although humans under develop and underrate their smelling sense. Pheromones may be present in all bodily secretions but most attention has been geared toward axillary sweat which contains the odorous 16-androstenes.
The images show the stages of human development. At which stage does cell differentiation start?
Answers
Cell differentiation occurs in the embryo after the third week of fertilization. The unspecialized mass of cells differentiates into specialized cells which perform specific functions.
What is Cellular differentiation?Cell differentiation is the process in which a stem cell which is present in the embryo undergoes changes to form specialized cells. The specialized cells are those cells which perform a specific function in body.
During the third week post-fertilization, the embryo begins to undergo the process of cellular differentiation. Cell Differentiation is the process through which the unspecialized cells become specialized to perform different functions. Cellular differentiation occurs as a result of certain genes which are expressed in cells while other genes remain unexpressed.
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\(what \: is \: cell \: \: \: {?}\)
Answers
Answer:
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. Cells have many parts, each with a different function. Some of these parts, called organelles, are specialized structures that perform certain tasks within the cell
Explanation:
❣️(◍Jess bregoli◍)❣️#keep learning!!
Answer:
hello there,
A cell are the basic building block of all living thing. "The human body is composed of trillions of cells. ... Cells have many parts, each with a different function. Some of these parts, called organelles, are specialized structures that perform certain tasks within the cell"
Explanation:
i got this from an article i used for a cell project. But it gives you an understanding of a cell is
What are the muscles of the anterior forearms?
Answers
The forearm's anterior or volar compartment contains eight muscles, five of which are superficial (pronator teres, flexor carpi radialis, palmaris longus, flexor digitorum superficialis, and flexor carpi ulnaris).
The muscles in the forearm's anterior compartment are divided into three layers:
Flexor carpi ulnaris, palmaris longus, flexor carpi radialis, pronator teres are the superficial muscles.Flexor digitorum superficialis is an intermediate muscle.Flexor pollicis longus, flexor digitorum profundus, and pronator quadratus are deep flexors.This muscle group is related with forearm pronation, wrist flexion, and finger flexion.Learn more about forearm's anterior
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You study eye formation using Mexican cave-dwelling blind fish. You know that blindness is a trait controlled by multiple genes and inherited in a recessive manner.
A blind fish from a true-breeding line in one cave was crossed to a blind fish from a true-breeding line in another cave. The mutations that cause blindness are in two different genes. You cross the F1 fish and examine 1600 progeny. Approximately how many will be blind?
Answers
The possible number of blind fish from the cross between a blind fish from a true-breeding line in one cave and a blind fish from a true-breeding line in another cave can be determined.
The possible number of blind fish from the cross between a blind fish from a true-breeding line in one cave and a blind fish from a true-breeding line in another cave can be determined. This study is being carried out to understand eye formation using Mexican cave-dwelling blind fish. The trait of blindness is controlled by multiple genes and inherited in a recessive manner.
In the cross between a blind fish from a true-breeding line in one cave and a blind fish from a true-breeding line in another cave, the mutations that cause blindness are in two different genes. To examine 1600 progeny, F1 fish were crossed.
Blindness is caused by the recessive mutations in two genes. The phenotype of the F1 fish produced by the cross between two true-breeding blind fish lines will be heterozygous for both mutations. The F1 fish can be represented as BbAa and is expected to produce four types of gametes, B A, B a, b A, and b a, with equal frequency.
Therefore, the proportion of the offspring from the cross between F1 fish that are homozygous for the recessive mutation in both genes (bb aa) is (1/4) × (1/4) = 1/16.
The approximate number of offspring that will be blind from the F1 cross is (1/16) × 1600 = 100.
Thus, approximately 100 progeny will be blind.
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estimate the total population of dandelions
Answers
Answer:
I think it's 7.7 dandelions
Explanation:
it's not a for sure answer though
Which statement is true?
A.
In a regulated market, consumers can choose their energy utility provider.
B.
In an unregulated market, consumers can choose their energy utility provider.
C.
In a regulated market, the FERC fixes the price of electricity that consumers pay.
D.
In an unregulated market, the state's public utilities commission fixes the price of electricity that consumers pay.
Answers
Answer:
b
Explanation:
MEIOSIS QUESTION (MULTIPLE CHOICE)
‼️ASAP!!! BRAINLIEST!!‼️
PLS HELP + EXPLAIN!!! Thx!
(NO LINKS PLEASE)
Answers
\( \: \: \)
\( \green{ANSWER} \)
b.diploidc. haploidExplanation:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell.hope it helpsAn important regulator of electrolyte concentrations in extracellular fluids is .
Answers
Answer:
Mineralocorticoid
Explanation:
Answer:
Aldosterone
Explanation:
Hope this helps!
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what is the kcat for a reaction in which vmax is 0.4 mmoles/min and the reaction mixture contains 5 10-6 micromoles of enzyme?
Answers
The kcat for a reaction in which vmax is 0.4 mmoles/min and the reaction mixture contains 5 x 10^-6 micromoles of enzyme is 1.33 x 10^6 sec^-1.
To calculate kcat, we need to convert the units of Vmax and [E] so that they are the same. We can do this by converting mmoles to micromoles (1 mmole = 1000 micromoles) and minutes to seconds (1 minute = 60 seconds):
The kcat for a reaction can be calculated using the formula: kcat = Vmax / [E], where Vmax is the maximum reaction rate and [E] is the enzyme concentration. In this case, Vmax is 0.4 mmoles/min and [E] is 5 x 10^-6 micromoles.
Vmax = 0.4 mmoles/min x (1000 micromoles / 1 mmole) x (1 min / 60 sec) = 6.67 micromoles/sec
[E] = 5 x 10^-6 micromoles
Now we can plug these values into the formula for kcat:
kcat = 6.67 micromoles/sec / 5 x 10^-6 micromoles = 1.33 x 10^6 sec^-1
Therefore, the kcat for this reaction is 1.33 x 10^6 sec^-1.
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true/false: one organelle found in many photoautotrophs but not heterotrophs is the nucleus.
Answers
False. The nucleus is an organelle found in both photoautotrophs and heterotrophs, as it is a key component of eukaryotic cells, responsible for housing genetic information.
The difference between photoautotrophs and heterotrophs lies in their methods of obtaining energy, with photoautotrophs using light for energy via photosynthesis, and heterotrophs obtaining energy by consuming other organisms. The nucleus is an organelle found in all eukaryotic cells, including both photoautotrophs and heterotrophs. The nucleus is responsible for containing and protecting the cell's genetic material, and plays a key role in gene expression and cell division. While photoautotrophs use light energy to produce their own food, heterotrophs rely on external sources of organic compounds for energy. Therefore, the presence or absence of a nucleus does not distinguish between photoautotrophs and heterotrophs.
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the teres major adducts the arm but does not __________ the arm.
Answers
Answer:
The correct answer would be abduct
Explanation:
The teres major adducts and internally rotates the arm at the shoulder but does not insert on the head of the humerus like the rotator cuff muscles.
Answer:
The correct answer would be abduct
Explanation:
The teres major adducts and internally rotates the arm at the shoulder but does not insert on the head of the humerus like the rotator cuff muscles.
Tai grows plants in a container called a terrarium, as shown below. He keeps the terrarium on a sunny windowsill.
The terrarium is closed, so Tai cannot add water to the plants. However, the plants have enough water to grow. Which of these statements best explains why the
plants always have enough water?
The air cannot hold all of the water vapor.
Water is unable to evaporate from the soil.
The plants take up water and store it in their stems and leaves.
Energy from the sun cycles water through the soil, the plants, and the air
Answers
Answer:
water is unable to evaporate from the soil
How can a father's habits affect the health of an unborn child during prenatal development?
A) father's use of crack cocaine causes sperm mutations, such that two sperm are capable of fertilizing a single ovum.
B) father's nicotine intake produces DNA changes that are passed to the fetus on chromosome 23.
C) father's use of barbiturates interacts with a mother's use of marijuana, resulting in missing chromosomes on a child's 8th pair.
D) father's use of alcohol or illegal drugs can affect his sperm, which in turn may lead to chromosomal damage that affects the fetus.
Answers
However, father's use of barbiturates interacts with a mother's use of marijuana, resulting in missing chromosomes on a child's 8th pair. This statement is not true, which makes option C incorrect.Father's use of crack cocaine causes sperm mutations, such that two sperm are capable of fertilizing a single ovum.
The father's use of alcohol or illegal drugs can affect his sperm, which in turn may lead to chromosomal damage that affects the fetus. This is how a father's habits can affect the health of an unborn child during prenatal development. It is important to note that the consumption of drugs, including alcohol, by expectant fathers poses significant risks to the developing fetus. Maternal alcohol or drug use, such as marijuana or cocaine, has long been known to have detrimental effects on the developing fetus, however, the negative effects of paternal alcohol or drug use on the fetus have only recently come to light. Nicotine intake does not produce DNA changes that are passed to the fetus on chromosome 23. Therefore, option B is incorrect . Barbiturates are a class of drugs that are used to treat a range of conditions, including anxiety and sleep disorders. They can be dangerous when taken improperly, leading to dependence and addiction. However, father's use of barbiturates interacts with a mother's use of marijuana, resulting in missing chromosomes on a child's 8th pair.
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what happens if a hand is put inside a plastic bag and the bag is closed tightly
Answers
Answer:
the hand will have less space
Explanation:
Many human diseases are genetically transmitted. Genes occur in pairs and each member of the pair can be of type A or a. The possible pairs are AA, Aa and aa, called genotypes. (Aa and aA are equivalent.) A child inherits one gene from its father and one from its mother. Assume that the gene transmitted to a child from each parent is chosen at random and with probability 0.5. In the example below, the father has the genotype Aa, and transmits A to the child. The mother has genotype aa and transmits a to the child. The child resulting genotype is Aa.
Father Mother
AA aa
child
Aa
a) Suppose the parents have genotypes Aa and aa as above. Explain why their offspring genotypes has the following distribution.
genotype probability
Aa 0.5
aa 0.5
b) The genetic disease is transmitted according to the autosomal recessive pattern: • The genotype aa is diseased and the child will die before it reproduces. • The genotype Aa is a carrier but is not diseased. • The genotype AA is not a carrier and is not diseased. i) [3 marks] If two carriers have a child, explain why their offspring genotypes has the following distribution.
genotype probability
AA 0.25
aa 0.25
Aa 0.5
b) ii) [3 marks] If the child of two carriers is not diseased, show that the probability that the child is a carrier is 2/3 .
Answers
By taking into account the potential gene combinations from the parents, this distribution is created. Each A and A gene has a 0.5 chance of being passed down from the father. One gene can only be passed from the mother.
The kid either inherits an A gene from the father and an a gene from the mother (resulting in the genotype Aa) or the child obtains an a gene from both parents (resulting in the genotype aa). These two possibilities are therefore equally likely.
a) Genotype Probability
Aa 0.5
aa 0.5
This is because there are two possible combinations when one gene is chosen randomly from each parent: Aa and aa. Each combination has an equal probability of 0.5.
b) 1) Genotype Probability
AA 0.25
aa 0.25
Aa 0.5
This distribution arises from the possible combinations when one gene is chosen randomly from each parent: AA, aa, and Aa. Each combination has an equal probability of 0.25.
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Can someone please help me
Answers
2. 1.600 animals
3. Black line represents moose/predator
4. 1.800 animals
5. Can't read
6. Can't read
7. Stable
Which does the shift of the hydrogen absorption spectrum of a galaxy provide evidence for? Select the three correct answers.
A. The Big Bang theory
B. temperature of the galaxy
C. motion of the galaxy
D. composition of the universe
E. expansion of the universe
F. number of stars in the galaxy
None sense will be blocked
Answers
Answer: b c d
Explanation:
Hkk
The shifts of the hydrogen absorption spectrum of a galaxy provide evidence for :
B. Temperature of the galaxy
C. Motion of the galaxy
D. Composition of the universe
The shifts of the hydrogen absorption spectrum of a galaxy provide evidence for the temperature of the galaxy ,the motion of the galaxy and composition of the universe.Thus, the three correct answers are B, C and D.
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What is the meaning of the safety symbol shown below?
A. Electrical equipment
OB. Poison
C. Eye safety
OD. Broken glass
Answers
Answer:
D
Explanation:
No picture
n a typical undisturbed cell, the extracellular fluid (ecf) contains high concentrations of sodium ions and chloride ions, whereas the cytosol contains _____
Answers
In a typical undisturbed cell, the extracellular fluid (ECF) contains high concentrations of sodium ions and chloride ions, whereas the cytosol contains low concentrations of sodium ions and chloride ions.
A cell is a fundamental unit of life, consisting of a membrane-bound structure that encapsulates biological molecules and carries out metabolic processes. The cytoplasm, the cell's aqueous interior, is where most cellular metabolism occurs.
Cells' internal environments are maintained by a balance of cations and anions between the intracellular and extracellular fluids. Cations are positively charged ions, and anions are negatively charged ions. These electrically charged ions create the ionic balance that is necessary for the cell to function normally.
In the typical undisturbed cell, the extracellular fluid (ECF) contains high concentrations of sodium ions and chloride ions, whereas the cytosol contains low concentrations of sodium ions and chloride ions. The high concentration of sodium ions and chloride ions in the extracellular fluid is maintained by active transport systems that require energy to maintain the concentration gradient.
The cell uses these gradients to transport ions, such as potassium, across the membrane through ion channels. Potassium is transported from the cytosol into the extracellular fluid, while sodium and chloride ions are transported from the extracellular fluid into the cytosol.
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Blood types A and B are codiminant and completely dominant to blood type O. A person with blood type AB has a child with a person with blood type O. What percent of their children are likely to express blood type O?
Answers
Answer:
The answer would be 0%
Explanation:
When you do the Punnett square of the couple (AB x OO), The blood would only be type A or B. The blood types dominate over blood type O since O is a recessive trait. So, blood type O would only possibly show if both parents have the trait.
The percentage of children that will likely express the blood type O is 0%. Details about genetic crosses can be found below.
What is co-dominance?Co-dominance is condition in which both alleles of a gene pair in a heterozygote are fully expressed, with neither one being dominant or recessive to the other.
According to this question, blood types A and B are codiminant and completely dominant to blood type O.
This means that if a person with with blood type AB has a child with a person with blood type O, the offsprings of this cross will have the following genotype:
AOBOTherefore, the percentage of children that will likely express the blood type O is 0%.
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What is one thing people can do to reduce the amount of carbon in theatmosphere?A. Plant more trees.OB. Drive longer distances.OC. Use more electricity.OD. Burn more fossil fuels.
Answers
Reduction of carbon in the atmosphere
Plants consume carbon dioxide (CO2) in the process of photosynthesis as a substrate to form their food, i.e, sugars such as glucose, following the formula:
6 CO2 + 6 H2O + light --