A gene variant's incidence in a population is represented by the allele frequency. Alleles are different versions of a gene that share a chromosomal location, or genetic locus.
An allele frequency is computed by dividing the total number of copies of all the alleles at that specific genetic locus in the population by the number of times the allele of interest is observed in a population. The decimal, percentage, or fractional forms of allele frequencies are all acceptable. The genetic variety of a population is reflected in the allele frequencies. Allele frequency variations over time can be a sign of genetic drift or the introduction of novel mutations into the population.
MutationsNonrandom MatingGenetic driftGene flowNatural selectionThe complete question is:
Select all of the following processes that can cause changes in allele or genotype frequencies in populations.
Mutations
Genetic drift
Nonrandom Mating
Random Mating
Natural selection
Gene flow
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During moderate intensity exercise, most of the ATP used for muscle contraction is formed by?
Answer:
Aerobic cellular respiration
Explanation:
Aerobic cellular respiration is the process by which your cells generate energy (ATP) from glucose (sugar from food) and oxygen. Since this exercise activity is only moderately intense, you are getting plenty of oxygen, and this is how your muscles will generate energy.
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why do we need to broaden our understanding of biodiversity
Answer:
Biodiversity is the variety of different types of organisms in the world or a particular area or ecosystem which is found to be very desirable and significant. Different types of plants, animals, and other organisms all are included in biodiversity and each has its own role.
Biodiversity of a biosphere or a region affects all organisms found in it from microbes to large plants and animals. Biodiversity gives an idea about a biosphere as it helps in the sustainability of all life forms if there are higher species variety.
Human beings need to broaden the understanding and knowledge of biodiversity as it is one of the major aspects that affect life all organisms present on earth.
How do hydrogen bonds contribute to body temperature regulation?
Hydrogen bonds contribute to body temperature regulation by one of the properties of water called high heat capacity. The water's high heat capacity is caused by hydrogen bonding among water molecules. These hydrogen bonds are broken down when heat is absorbed causing water molecules to move freely. When the temperature of water decreases, hydrogen bonds are formed; thereby releasing a considerable amount of energy.
Under what conditions can pieces of DNA be artificially combined?
Answer:
Combining pieces of DNA artificially is known as DNA cloning, the DNA formed is known as recombinant DNA.
Explanation:
The donor DNA that is to be combined is cut into fragments in specific sequences using restriction enzymes which are individually introduced to replicating DNA molecules such as bacterial plasmid known as vectors.
The process is Isolating -> Cloning -> Sequence DNA.
Which of these is the greatest limiting factor for plants that grow on the floor
of a rain forest?
O Space
O Water
O Herbivores
O Sunlight
Answer:
Sunlight
Explanation:
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Does the resulting wave demonstrate destructive
interference? Explain your answer.
Answer:
Destructive interference happens when one wave is oscillating the opposite way as the other one, so it compensates.
Explanation:
Answer:does not demonstrate destructive interference,
Explanation:
Which statement is correct about the properties that define a particular kind of mineral?(1 point)
Rocks are constructed from minerals, which are also the building components of our world. They are specified as naturally occurring and crystalline (as used in mineralogy).
What are minerals?solids comprised of inorganic materials rather than biological ones, indicating that they have an organized internal structure. For instance, the bismuth crystal in the image below was made in a lab and is not a mineral since it does not naturally exist in this form.
Each mineral has a unique chemical structure and content that sets it apart from other minerals of a similar type. In addition, they contain distinct physical characteristics that enable scientists to recognize them without the use of a microscope. Let's examine each of these distinctive physical characteristics of minerals and consider how they are used to classify them.
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(1) Many organisms of the same species living in an area make up a population. (2) Populations in an area make up a community. (3) An ecosystem is all living and
nonliving things in an area. (4) The living things depend on each other to survive.
If this sentence were added to the paragraph, what transition would best indicate that a pond is an example of a community?
You have screened for several new recessive mutations in a species of wasp.
Wasps homozygous for apricot (aa) have pale orange eyes. (Wild-type eyes are brown.)
Wasps homozygous for blunt (bb) have short wings. (Wild-type wings are long.)
You make a pure-breeding double-mutant (apricot, blunt) line and cross it with wild-type wasps. The F1 is wild-type in appearance.
You testcross the F1 dihybrids with the double-mutant line (the "tester" genotype) and obtain four phenotypes in the testcross progeny:wild typeapricot, bluntapricotblunt
Determine the following for each phenotype in the testcross progeny:
the haploid genotype of the gamete it received from the F1 dihybrid
its full diploid genotype
whether the gamete it received from the F1 dihybrid was recombinant (REC) or nonrecombinant (nonREC).
Phenotype of wild type, Octopus phenotype, Appropriate examples of a blunt phenotypic include. Recessive mutations are gene changes that only manifest as a phenotype in individuals who are homozygous.
Genetic changes known as recessive mutations only manifest as phenotypes in individuals who carry two copies of the mutant allele. This contrasts with dominant mutations, which result in a phenotype even when the mutant allele is present in a single copy. Only when both parents have the mutant gene may a recessive mutation be transferred from parent to offspring. There is a 25% possibility that a child born to two carriers of a recessive mutation will carry two copies of the mutant allele and manifest the corresponding trait. Genetic illnesses including cystic fibrosis, sickle cell anaemia, and other conditions can result from recessive mutations, which are significant for genetic study and have practical implications for human health and medicine.
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The top layer of the soil in the diagram is composed MAINLY of
A)
sand and clay.
B)
solid bedrock
C)
many types of minerals.
D)
decaying organic material.
Answer:
?
(there is no diagram)
Cells with limited potential to develop into any type of cells are called
What test is used to ensure that the results you expect are the same as the results you are observing?
A. Epistatic test
B. Chi-squared test
C. Observational confirmation test
D. Punnett square test
Reset Selection
Answer:
b. Chi Squared
Explanation:
The chi squared test is best to find signifigance between differences in observed and expected values.
Tertiary structures of proteins can be very complex. Analyzing and recognizing common structural patterns is the first step in understanding how proteins form higherâorder structures. Two terms, domain and motif (also called fold), describe protein structural patterns. Classify each characteristic as a domain or a motif.
a. Always independently stable
b. Retains native structure even when separated from the rest of the protein
c. β Barrel
d. Calcium-binding segments of calmodulin
e. An advantageous folding pattern composed of two or more secondary structure elements
f. Sometimes independently stable
Answer:
a. Always independently stable. Domain
b. Retains native structure even when separated from the rest of the protein. Domain
c. β Barrel. Motif
d. Calcium-binding segments of calmodulin. Motif
e. An advantageous folding pattern composed of two or more secondary structure elements. Domain
f. Sometimes independently stable. Motif
Explanation:
a. Protein domains are evolutionary conserved and stable 3D structures formed by a series of amino acids joined by peptide bonds.
b. Domains are stable because they conserve their tridimensional structure in physiological conditions even if they are separated of the rest of the protein.
c. The ß-barrel motif is a type of motif localized in single-stranded DNA viruses.
d. Calmodulin is a protein that contains calcium-binding motifs that enable to sense intracellular calcium levels.
e. Domain folding patterns are critical transitional states that allow the proteins their interaction with specific ligands in different physiological conditions.
f. Motifs are sometimes independently stable, but due to their short length (3-15 amino acids), protein motifs are generally unstable in different conditions.
Which animal species spends most of the time sleeping
A) carnivores
B) herbivores
C) marsupials
D) sleep times are approximately the same for all animals
Answer:herbivores
Explanation
Question 1 A heterozygous yellow-seeded plant is crossed with a homozygous yellow seeded plant. i. ii. Question 2 Complete the punnet square and write the genotypic and phenotypic ration for the possible offsprings. (3 marks) Genotypic ration Phenotypic ration What is the probability of having a pure breeding green seeded offsprings (2 marks) What is the probability of having a yellow-seeded plant in F2 generation, when a true breeder from F1 is crossed with a non-true breeding yellow seeded plant? (2 marks)
Answer:
Explanation:
To solve this problem, let's represent the heterozygous yellow-seeded plant as "Yy" and the homozygous yellow-seeded plant as "YY."
i. When crossing a heterozygous yellow-seeded plant (Yy) with a homozygous yellow-seeded plant (YY), we can set up a Punnett square to determine the possible offspring genotypes:
Y Y
y Yy Yy
y YY YY
ii. The genotypic ratio is 2:2 or 1:1 for the possible offspring genotypes: Yy and YY.
The phenotypic ratio is also 2:2 or 1:1 for the possible offspring phenotypes: yellow-seeded (YY and Yy).
Question 2:
To determine the probability of specific outcomes, we need additional information about the parental genotypes and their inheritance patterns. Please provide the genotypes of the true breeder from F1 and the non-true breeding yellow-seeded plant for a more accurate calculation.
With a small group, discuss whether you
believe Grandin's explanation for the cat's behavior in lines 24-28. Why
or why not?
Discussing with a small group, Grandin, why or why not? whether you believe cat's behavior
Familiarize yourself with the provided lines: Review the specific lines (24-28) and understand Temple Grandin's explanation for the cat's behavior. Identify the key points she presents and any evidence or reasoning she provides.
Assess the credibility of the explanation: Evaluate the credibility of Temple Grandin as an expert in the field. Consider her background, qualifications, and experience. Determine if her explanation aligns with established scientific knowledge and theories on cat behavior.
Consider alternative explanations: Explore alternative explanations for the cat's behavior. Are there other theories or perspectives that could provide a different understanding? Examine any contrasting evidence or interpretations that challenge Grandin's explanation.
Discuss supporting evidence: Share and discuss any evidence or examples that support or refute Grandin's explanation. Look for empirical studies, research findings, or personal experiences that align with or contradict her claims.
Evaluate the overall plausibility: Based on the information and arguments presented, assess the overall plausibility of Grandin's explanation. Consider the strengths and weaknesses of her reasoning, evidence, and any counterarguments.
Reach a group consensus: Engage in a thoughtful discussion where each participant can express their viewpoints. Evaluate the various perspectives and aim to reach a group consensus on whether Grandin's explanation is believed to be valid or not, taking into account the credibility of the source, supporting evidence, and alternative explanations.
Remember, the goal of the discussion is to critically analyze the explanation, consider multiple viewpoints, and arrive at a reasoned conclusion based on the available information.
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Choose one possible path through the food web above, and explain how a carbon atom could begin in a molecule of carbon dioxide and end up in a protein molecule in an animal’s muscle cell.
The plant to produce their fruits, in this case, the nuts, firstly have to carry out photosynthesis in their leaves, by the intake of water through its roots, and the intake of Carbon dioxide through the chloroplast of their leaves. After this process, the plant will produce glucose to develop its other functions, such as its growth in leaves and flowers, which eventually will form, after pollination, the formation of the nuts.
The nuts have inside carbohydrates, or glucose, which the plant produced by photosynthesis. These carbohydrates, consumed by a squirrel will eventually be used to perform different functions in their body, and, indeed, the formation of proteins like the ones found in muscle cells. The reason why it's said is that the carbon atom from CO2 is used to form the muscle cell.
Which of the following was proposed by Charles Darwin?
A.endosymbiosis hypothesis
B.biogenesis
C.natural selection
D.experimentation
Answer:
Charles Darwin proposed the theory of natural selection.
It takes 29.5 days for the moon to orbit earth. How many days and hours does it take for the moon to move through a quarter phase
1. 7 days and 5 hours per quarter
2. 7 days per quarter
3. 7 days 10 hours per quarter
4. 7 days 15 hours per quarter
Answer:
I believe the answer is 2
List four uses of lactic acid fermentation. List four uses of alcoholic fermentation.
Answer:
The most commercially important genus of lactic acid-fermenting bacteria is Lactobacillus, though other bacteria and even yeast are sometimes used. Two of the most common applications of lactic acid fermentation are in the production of yogurt and sauerkraut.
Lactic acid fermentation happens in our muscle cells when we are exercising feverishly, while alcoholic fermentation is used in yeast cells and is what leads to beer, bread, and wine.
The fingers are_____to the wrist
How many codons are present in the sequence of mRNA shown below?
GGG ACU CAC GCU
Which of the following statements is TRUE regarding the relative sizes of the different individual cells? a) Staphylococcus aureus are larger than Saccharomyces cerevisiae. b) Bacillus subtilis are larger than Saccharomyces cerevisiae. c) Human blood cells are larger than Bacillus subtilis. d) Staphylococcus aureus are larger than human blood cells.
Answer:
c) Human blood cells are larger than Bacillus subtilis.
Explanation:
Eukaryotes are typically much larger than prokaryotes. Prokaryotes vary in size from cells as small as about 0.2 mm in diameter to those more than 700 mm in diameter.
Bacillus subtilis, which are rod-shaped, are 4–10 micrometers (μm) long and 0.25–1.0 μm in diameter.
Staphylococcus aureus, which are spheres, are up to 1 μm in diameter.
Yeast cells are typically much larger than bacterial cells and can be distinguished from bacteria microscopically by their larger size. A single cell of Saccharomyces cerevisiae is about 6 μm in diameter.
On the other hand, red blood cells have a diameter of 6 - 8 μm.
What is necessary for social fulfillment in the three pillars of sustainability?
Social fulfillment in the three pillars of sustainability requires equity, justice, and the satisfaction of human needs.
In the context of sustainability, social fulfillment encompasses ensuring equity, justice, and meeting the basic needs of individuals and communities. The three pillars of sustainability—environmental, economic, and social—are interconnected and rely on each other for long-term success.
Social fulfillment is necessary to achieve a sustainable society. It involves promoting social equity, ensuring fair distribution of resources and opportunities, and addressing social challenges such as poverty, inequality, and discrimination. It also requires safeguarding human rights, providing access to education, healthcare, and social services, and fostering inclusive and participatory decision-making processes.Within the three pillars of sustainability, social fulfillment is crucial because it recognizes that sustainable development cannot be achieved without considering the well-being and quality of life of individuals and communities.It emphasizes the importance of balancing economic growth and environmental protection with social progress to create a more equitable and just society for present and future generations.
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What is the purpose of technology?
A. Creating political pressure
B. Finding new scientific discoveries
C. Solving problems
D. Regulating the government
The purpose of technology is to solve problems and improve various aspects of human life. Option C.
The purpose of technology is multifaceted and encompasses various objectives.
However, at its core, technology is developed to address challenges, solve problems, and enhance different facets of human existence. Whether it is improving efficiency, increasing productivity, advancing communication, or creating innovative solutions, technology aims to provide practical and tangible benefits.
Technological advancements enable us to overcome obstacles and improve the quality of life.
From medical technologies that diagnose and treat diseases to renewable energy sources that combat climate change, technology plays a pivotal role in finding solutions to complex problems. It empowers us to tackle issues in areas such as healthcare, transportation, agriculture, education, and environmental sustainability.
Furthermore, technology drives scientific discoveries and innovation. It provides scientists with tools and methodologies to conduct research, gather data, and analyze information, leading to new insights and understandings of the world.
Technological advancements in fields like computing, artificial intelligence, and genetic engineering have opened up new frontiers for exploration and scientific breakthroughs.
While technology can be used for political advocacy, social mobilization, and improving governance processes, these are additional applications rather than its fundamental purpose.
The primary aim of technology is to address challenges, solve problems, and enhance human experiences in various domains. It serves as a catalyst for progress and development, shaping the way we live, work, communicate, and interact with the world around us. SO Option C is correct.
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Which of the following does NOT describe vacuoles?
both plants and animals have vacuoles
they are the largest organelle in plant cells
they store water in plants and help give them structure
they are the place where cell respiration takes place
Answer:
they are the place where cell respiration takes place
Explanation:
Cellular respiration is a series of metabolic reactions used by the cell to create energy (ATP), these reactions occur partially in the cytoplasm, but mostly in the mitochondria. On the other hand, vacuoles store water in plants and help give them structure, are the largest organelle in plant cells, and both plants and animals have them. Therefore the answer is, they are the place where cell respiration takes place.
Why do v sneeze
plz explain it step by step
Help with junior biology assignment.
Answer:
1.
a)dd
b) dd
c) 0%
2.
a) 25%
b) 75%
c) 25%
3.
a) 03
b) 0
c) tt
4.
a) FF x ff OR FF x Ff OR FF x FF
b) Because all the children have freckles
5.
a) 4:0
b) 100%
6.
a) 50%
b) Bb
c) 3 out of 6 (including parents)
A
В
с
Which container has the least concentration of solutes?
O A
OB
О с
OD
Answer:
c
Explanation:
its c i took the test
Where are the neutrons located in the atom? O In the nucleus O Around the nucleus
Answer:
in the nucleus
Explanation:
they are found in it