The higher the proportion of loci that are "fixed" in a population, the lower are that population's
(A) nucleotide variability
(B) chromosome number
(C) average heterozygosity
(D) nucleotide variability and average heterozygosity
Answers
The correct option is (D) Nucleotide variability and average heterozygosity
The higher the proportion of loci that are "fixed" in a population, the lower are that population's nucleotide variability and average heterozygosity.
What does it indicate when a gene in a population is fixed?In population genetics, fixation is the transformation of a gene pool from one in which at least two alleles of a certain gene exist in a given population to one in which only one allele persists. Any allele must eventually be lost entirely from the population or fixed (permanently established at 100% frequency in the population) in the absence of mutation or the heterozygote advantage. Selection coefficients and random variations in allelic proportions determine whether a gene will ultimately be lost or fixed. Fixation may relate to a specific nucleotide location in the DNA chain or a gene in general (locus).Learn more about the Nucleotide variability with the help of the given link:
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Related Questions
Help I’ll give brainless please
Answers
The mass of the wax after the melting would still be exactly 50 g
Law of conservation of massA cornerstone of physics and chemistry is the law of conservation of mass, commonly referred to as the principle of mass conservation. It asserts that mass cannot be created or removed in a closed system.
In other words, the total mass of a closed system remains constant over time, regardless of any physical or chemical changes that may occur within the system.
Since the mass of the wax would not change, it would be right to say that by this law, the melted wax would stull weigh 50g
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According to the food web, what do crayfish eat?
A)
algae
B)
protozoans
C)
black bass
D)
decaying vegetation
Answers
Answer:
decaying vegetation.
Explanation:
the arrows lead into what they are getting eaten by. its kinda confusing.
Anyone knows the answer here!??
Answers
Answer:
the top one
Explanation:
plants kinda like breath carbon and you need water and energy to put all of the little thingys into sugar form
Acell with a 90% water concentration is placed in a beaker with an 85% water
concentration. What will happen to the cell over time?
Answers
Answer:
The cell will lose H2O and shrink
Explanation:
This is because the water will move out of the cell, also meaning that it is hypertonic.
For each mutation, provide a plausible explanation for why it gives rise to its associated phenotype.
Answers
Cystic fibrosis (CF): CF is caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. This gene encodes a protein that regulates the flow of salt and water in and out of cells.
Mutations in the CFTR gene lead to the production of a faulty protein that disrupts salt and water balance in various organs, leading to thick, sticky mucus buildup and inflammation. This causes a range of symptoms, including respiratory and digestive problems.
Sickle cell anemia: Sickle cell anemia is caused by a mutation in the hemoglobin beta gene, which leads to the production of an abnormal hemoglobin protein. This abnormal protein causes red blood cells to become stiff, sticky, and sickle-shaped. These cells can block blood vessels and cause a range of complications, including pain, organ damage, and increased risk of infections.
Huntington's disease (HD): HD is caused by a mutation in the huntingtin (HTT) gene, which produces a protein that is important for the normal function of nerve cells in the brain. The mutation leads to the production of an abnormal form of the huntingtin protein, which accumulates in cells and disrupts their normal function. This leads to the degeneration of specific regions of the brain, causing a range of symptoms, including motor problems, cognitive decline, and psychiatric symptoms.
Hemophilia: Hemophilia is caused by mutations in the genes that produce clotting factors VIII or IX, which are essential for blood clotting. The mutations result in reduced or absent production of these clotting factors, leading to excessive bleeding and bruising. The severity of the symptoms depends on the extent of the deficiency in the clotting factor.
Albinism: Albinism is caused by mutations in genes that are involved in the production or transport of melanin, the pigment that gives color to the skin, hair, and eyes. The mutations lead to reduced or absent production of melanin, resulting in very light skin, hair, and eyes, and increased sensitivity to sunlight. Albinism can also cause vision problems and increased susceptibility to skin cancer.
Phenylketonuria (PKU): PKU is caused by mutations in the phenylalanine hydroxylase (PAH) gene, which produces an enzyme that is essential for the breakdown of the amino acid phenylalanine. The mutations lead to reduced or absent production of this enzyme, resulting in the accumulation of phenylalanine in the blood and brain. This can cause a range of symptoms, including intellectual disability, seizures, and behavioral problems.
Overall, mutations can have a range of effects on the structure and function of proteins, leading to disruptions in cellular and physiological processes. These disruptions can result in a wide range of phenotypes, depending on the specific protein affected and the extent of the disruption.
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following intense exercise, the human body attempts to overcome oxygen debt by
Answers
Following intense exercise, the human body attempts to overcome oxygen debt by increasing respiration rate and heart rate.
What is oxygen debt? Oxygen debt is the amount of oxygen required to restore a muscle to its pre-exercise condition. It's the amount of oxygen that a person's body needs to get back to a resting state after an intense workout. When a person participates in intense exercise, their body is unable to provide the muscles with enough oxygen to keep up with the demand. This oxygen debt is the difference between the amount of oxygen needed by the body to perform exercise and the amount of oxygen consumed by the body during exercise.What happens after intense exercise?When intense exercise is performed, oxygen is consumed by the body at a faster rate than it is supplied, resulting in an oxygen deficit. The body responds to this deficit by raising respiration and heart rates to provide more oxygen. This is due to the fact that the body needs to generate more energy to meet the increased demands of exercise. After exercise, the body continues to demand extra oxygen to eliminate lactic acid, which is a byproduct of anaerobic respiration that causes muscle fatigue. By increasing respiration and heart rates, the body may continue to consume additional oxygen to address oxygen debt.
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Two brown-eyed parents have a child. The child has blue eyes.
Which term best describes the allele for the child's blue eyes?
O heterozygous
O homozygous
O dominant
O recessive
Answers
The term that best describes the allele for the child's blue eyes is recessive. Thus, the correct option for this question is D.
What is a Recessive allele?A recessive allele may be defined as a kind of allele that when present on its own will not affect the individual. It will only be expressed in the phenotype if two copies of it are present.
According to the context of this question, the brown eye (B) is dominant over the blue eye (b). The parents have genotypes brown-eyed which means they are heterozygous for brown-eye (Bb) and when they interbreed with each other, they produce a blue eyes child which has a recessive allele of (bb).
Therefore, the term that best describes the allele for the child's blue eyes is recessive. Thus, the correct option for this question is D.
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Commensalism is a symbiotic relationship where ______________.
A. both species benefit
B. one species benefits and one is unaffected
C. one species benefits and the other is harmed
Answers
Answer:
B
Explanation:
an association between two organisms in which one benefits and the other derives neither benefit nor harm
Answer:
the Answer is B. commensalism is the relationship between two organisms where one benefits and the other is not harmed or affected
What could you conclude about a community equipped with a geothermal power plant?
a The people of the community care about the environment more than most people.
b Costs for living supplies would be less expensive in the community.
c There are no other energy sources available to the community.
d The community may be prone to earthquakes and/or volcano eruptions
Answers
The community may be prone to earthquakes and/or volcanic activity.
The presence of a geothermal power plant suggests that the community has access to a significant geothermal energy source. Geothermal energy is harnessed by tapping into the heat generated from the Earth's interior, often in areas with active tectonic activity or volcanic regions. These regions are characterized by geological features such as hot springs, geysers, or volcanic activity. Therefore, the presence of a geothermal power plant implies that the community is located in an area where there is a potential for earthquakes and/or volcanic eruptions. It is important to consider the geological risks associated with operating a geothermal power plant and the need for proper monitoring and safety measures in such areas.
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the spinning of earth around its axis is called
Answers
Answer:
Rotation
Explanation:
describes the circular motion of an object around its center
What is a tendon? A tendon is a connective tissue that links a bone to a muscle. A tendon is a connective tissue that links bone to bone. A tendon is a connective tissue that links muscle to muscle. A tendon is a connective tissue that links tendon to tendon.
Answers
Answer:
A tendon is a connective tissue that links a bone to a muscle.
Explanation:
A cell has a 5\%5%5, percent salt concentration. It is placed into a solution with a 0.5\%0.5%0, point, 5, percent salt concentration. What will happen to the cell?
Answers
The question is not clear, so the clear question is as follows:
A cell has a 5 percent salt concentration. It is placed into a solution with a 0.5 percent salt concentration. What will happen to the cell?
Answer:
Cell will get swelled and burst
Explanation:
When a cell is placed in a solution with less concentration, then the solvent particles move from lower concentration to higher concentration through a semipermeable membrane and the process s called osmosis.
In this case also, the cell has higher concentration and the solution has less, so water will move into the animal cell, causing it to swell and burst after some time.
Hence, the correct asnwer is "Cell will get swelled and burst".
Answer:
Water will move into the cell, causing it to swell.
Explanation:
The cell has higher concentration of solute and a lower concentration of water than the solution it is placed in. This means that water will move into the cell, causing it to swell and ultimately burst.
Right from khan :))
Identify the type of chemical substance a scientist would need to use to cut and paste the genes to produce genetically modified tomato plants
Answers
Genetically modified (GM) foods have altered DNA to enhance desired qualities or improve the plant's resistance to pests or environmental factors. This DNA manipulation takes place using recombinant DNA technology, and it requires a chemical substance called restriction enzymes to cut and paste the genes.
Restriction enzymes, also known as molecular scissors, are a type of enzyme that can slice through DNA at a particular location and then seal the ends back together when exposed to the right conditions. As a result, scientists can select and remove a specific gene from one organism and insert it into another to produce genetically modified crops.
Restriction enzymes recognize a specific DNA sequence called the restriction site, and they cut the DNA at that point. Each restriction enzyme has its own restriction site, and this specificity allows scientists to select the gene they want to cut and paste from one organism to another. For example, if scientists want to improve the shelf life of tomatoes, they can use restriction enzymes to cut out the desired gene responsible for the long shelf life trait in one plant species and paste it into the DNA of the tomato plant to produce genetically modified tomatoes with an extended shelf life.
In conclusion, restriction enzymes play a crucial role in the genetic engineering process, allowing scientists to create genetically modified plants with desirable traits.
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Process by which plants become fertilized without water; animals help
Answers
What is an advantage of electron microscopes compared to light microscopes?
They have a much higher power of resolution.
They can be used to view live specimens.
They are inexpensive and commonly found in classrooms.
They are helpful during dissections.
Answers
Answer:
They have much higher power of resolution.as compared to light microscope.
3. The bodies of verteb 4. Vertebrates can be s. Other vertebrates the eagles, 6. Vertebrates in different ways: walking, jumping, crawling, climbing, running and flying 7. Vertebrates can be classified into five groups: fish, r C. Read and complete the text. Invertebrates lay eggs, so they are arthropods. and terrestrial They can be classified into groups: sponges, jellyfish, corals, worms, mollusks, echinoderms and and corals are have gelatinous bodies with stingers. Corals are marine invertebrates called ground. They can be aquatic or are aquatic and porous. We can use them in the Jellyfish animals. This means that they live in the sea. Jellyfish which have small, venomous An example of a mollusk is a s like mussels, but others like octopus, do not. Echinoderms are aquatic and have and the that produce limestone residue. have soft, long bodies which they drag on the Some mollusks have and myriapods have more than Examples are the 80% of all arthropods. They can be classified according to the number of have. Insects have legs; arachnids have birds crustaceans have legs. on earth are
Answers
Vertebrates are organisms with an interior backbone whereas invertebrates are animals without a backbone.
What are vertebrates and invertebrates?Organisms with an interior backbone, also known as a vertebra, are referred to as vertebrates. They have a robust bone skeleton that anchors muscle and maintains the body's tissue. Vertebrates include all fish, amphibians, reptiles, birds, animals, including humans, and birds.
Invertebrates are defined as animals without a backbone.
Protozoa, Porifera, Coelenterata, Platyhelminthes, Nematoda, Annelida, Echinodermata, Mollusca, and Arthropoda are among the most well-known animal groups.
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PLEASE HELP ILL GIVE BRAINLEIST!!
Answers
Answer:
Explanation:
it is also similar to a unicellular and multicellular.
Which description is an example of codominance
Answers
Answer:
Explanation:
Codominance means that neither allele can mask the expression of the other allele. An example in humans would be the ABO blood group, where alleles A and alleles B are both expressed. So if an individual inherits allele A from their mother and allele B from their father, they have blood type AB.
the cellular machine comprised by rna polymerase, dna template and a nascent mrna is referred to as?
Answers
RNA polymerases are the enzymes involved in transcription. RRNA makes up the majority of a RNA in cells; mRNA makes up about 3-5% of a cell's total RNA.
To create a fresh, complementary RNA molecule, RNA polymerase employs a single Stranded dna (the template to make) as a template. Termination is the procedure that puts a stop to transcribing. The RNA sequences that indicate that the translation is finished rely on termination. Where does the transcription of a gene to mRNA by RNA polymerase start? It begins following a certain nucleotide pattern known as a promoter. What role does RNA polymerase play? The expanding strand of RNA receives nucleotides as the double helix is unwound. RRNA genes are transcribed by RNA polymerase I, mRNA, miRNA, snRNA, or snoRNA genes are transcribed by RNA polymerase II, while tRNA & 5S rRNA genes are transcribed by RNA polymerase III. Answer and justification Comparisons between DNA and RNA A Template dna strand is needed for polymerases.
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HELP PLS
a.) How bad is pollution in our community?
b.) What do you do every day that adds to pollution?
c.) What do you do every day that helps to reduce pollution?
d.) Is there a lot of pollution in our country?
Answers
In my community, there is not much pollution.
To protect himself from pollution, I always use mask for safety.
To reduce the pollution I fall water in road etc, and I request people to use mask, Hankey.
yes.
Explain binary fission in amoeba
Answers
Answer:
Binary fission is the most common method asexual reproduction employed by amoeba. During this stage, amoeba stops its movement by withdrawing its pseudopodia and forms a spherical shape. The genetic material is divided by the process of mitosis, after the division of cytoplasm follows the division of the nucleus, resulting in two daughter cells which are identical clones obtained by parent cells.
MARK ME AS BRAINLIEST PLEASE
Answer:
Amoeba is a unicellular organism, and just like bacteria, it reproduces through binary fission. After replicating its genetic material through mitotic division, the cell divides into two equal-sized daughter cells. In this method, two similar individuals are produced from a single parent cell
Explanation:
what do cancer cells need to do in order to become a tumor
Answers
Answer: Accelerating cell division rates or inhibiting normal controls on the system
Explanation:
Answer:
Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor. brainliest
describe the cycling of matter and flow of energy among living and nonliving parts of the carbon cycle.
Answers
Answer:
Every ecosystem is made up of a variety of living and nonliving things. The living things within an ecosystem depend on each other to obtain their energy.
Explanation:
Hope this helps! :)
- Which of the following organisms is NOT characteristic
of the sandy beach?
clams
barnacles
crabs
worms
Answers
Answer:
worms, maybe barnacles
Explanation:
Which is the process by which a protein is constructed? Question 20 options: A) translation B) transcription C) transposition D) transformation
Answers
The process by which a protein is constructed is called translation (Option A).
Transcription and translation are processes a cell uses to make all proteins the body needs to function from information stored in the sequence of bases in DNA. The four bases (C, A, T/U, and G in the figure) are the building blocks of DNA and RNA.
Translation involves the decoding of genetic information stored in messenger RNA (mRNA) and the assembly of amino acids into a polypeptide chain, which then folds into a functional protein. Transcription is the process by which DNA is copied into mRNA, while transposition refers to the movement of genetic elements within a genome.
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If a ballon uses heat as energy to rise, how do you think it is able to come back down to the ground? Where does the energy go?
Answers
Answer:
I think the heat cools and the bloon is brought back down
Explanation:
hope this helps
Identify the meaning of the underlined word in the following sentence:
The culling of the cows was done as a means of preventing the spread of BSE
a.
process that determines which animals in a herd will not be bred
c.
The process of separating the herd by male and female
b.
taking blood samples from the cows
d.
all of the above
Answers
Culling of the cows to avoid the spread of the disease BSE is a process that determines which animals in a herd will not be bred.
What is culling?Culling refers to a selective slaughter of animals which are either infected or which have traits that make them undesirable.
The disease BSE is a disease that affects cows and which cannot be treated.
Therefore, culling of the cows to avoid the spread of BSE is a process that determines which animals in a herd will not be bred.
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Answer:
a
Explanation:
What is the lava like that produces an eruption like this one? A. thin and runny B. thick and runny C. thick and sticky D. thin and rich in gas
Answers
23. li, g., ma, x., deng, l., zhao, x., wei, y., gao, z., … sun, c. (2015). fresh garlic extract enhances the antimicrobial activities of antibiotics on resistant strains in vitro. jundishapur journal of microbiology, 8(5), 1-6. doi:10.5812/jjm.14814
Answers
The given article in the citation: li, g., ma, x., deng, l., zhao, x., wei, y., gao, z., … sun, c. (2015). Fresh garlic extract enhances the antimicrobial activities of antibiotics on resistant strains in vitro.
Jundishapur Journal of Microbiology, 8(5), 1-6. doi:10.5812/jjm.14814, reports on the efficacy of garlic extract as an antimicrobial agent against antibiotic-resistant strains. The study aimed to evaluate whether fresh garlic extract could enhance the antimicrobial activity of antibiotics against antibiotic-resistant bacteria. In vitro study design was used for the experiments.The article explores the following details:Fresh garlic extract improved the efficacy of antibiotics against antibiotic-resistant bacteria.
Antibiotic-resistant strains were obtained from clinical and environmental samples. The bacterial isolates included E. coli, Staphylococcus aureus, Pseudomonas aeruginosa, Acinetobacter baumannii, and Klebsiella pneumoniae.The experiment's in vitro design involved testing the effects of garlic extract and antibiotics alone and in combination.Garlic extract improved the activity of most tested antibiotics against antibiotic-resistant bacteria.
The combination of garlic extract and gentamicin resulted in the greatest increase in inhibition zone diameters against all tested bacterial strains.Garlic extract may be a potent agent for enhancing antibiotic efficacy against antibiotic-resistant bacteria.
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1.If some cells in your Gram stain are red/pink rods and some are purple cocci, __________.
If some cells in your Gram stain are red/pink rods and some are purple cocci, __________.
a. the bacteria ferment sucrose
b. you should inoculate an EMB agar plate
c. your unknown is a species of Escherichia
d. your unknown bacterium is a pleomorphic species
e. your smear was not made from a pure culture
2.In a clinical laboratory, all microbes contained in a clinical sample are isolated and identified.
In a clinical laboratory, all microbes contained in a clinical sample are isolated and identified.
A. True
B. False
3.If a yellow halo is present around a colony on a mannitol salt agar (MSA) plate, the bacterium cannot ferment mannitol.
If a yellow halo is present around a colony on a mannitol salt agar (MSA) plate, the bacterium cannot ferment mannitol.
A. True
B. False
Answers
1. If some cells in your Gram stain are red/pink rods and some are purple cocci your smear was not made from a pure culture. The correct answer is option(e)
2. It is true that In a clinical laboratory, all microbes contained in a clinical sample are isolated and identified.
3. It is false that If a yellow halo is present around a colony on a mannitol salt agar (MSA) plate, the bacterium cannot ferment mannitol. MSA is a selective and differential agar used to isolate and distinguish Staphylococcus species, most notably Staphylococcus aureus. Mannitol is a fermentable sugar in the agar, while phenol red is a pH indicator. Acid is produced as a result of fermentation by Staphylococcus aureus, which can ferment mannitol. The acid generation causes a reduction in pH, which causes the pH indicator to shift colour from red to yellow. As a result, a yellow halo around a colony on an MSA plate indicates that the bacterium can ferment mannitol.
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