a pond was stocked with 100 fish of the aa genotype and 100 fish of the aa phenotype, and the fish were allowed to breed. in the next generation, 35 percent of the fish had the dominant (aa) phenotype. what does this result indicate?
Answers
This result indicate that the homozygous dominant phenotypes is higher than expected, indicating that evolution has occurred.
homozygous dominant
When both alleles are dominant, the genotype is referred to be homozygous dominant. For instance, in pea plants, a single gene with two alleles controls height, with the tall allele (T) being dominant and the short allele (t) being recessive. A truthful tall pea plant would have the type TT, which is typically used to refer to two dominant alleles.
A genotype where a person receives two copies of a dominant gene is known as homozygous dominant. Genes are segments of DNA that contain the protein-coding instructions for the qualities we possess. Because humans are diploid creatures, they receive two copies of each gene. Alleles are the various variations of genes. Selection favours the dominant phenotype. Natural selection holds that individuals with a particular trait are more successful in reproducing than those without the feature. As a result, the allele that codes the desired trait is passed down to more kids and gradually spreads throughout society.
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Related Questions
What event in the history of the Earth allowed for the Earth to develop a magnetic field? *
the Earth was a big ball of lava
the Earth settled out in to layers; crust, mantle, outer core, inner core
the Earth has never had a magnetic field
The Earth started to hold oceans
Answers
Answer:
2
Explanation:
the Earth settled out in to layers; crust, mantle, outer core, inner core
SC.912.L.16.1 (high)
5. Coat color in Labrador retrievers is determined by genes at two loci, B, and E, where B
and E are dominant, and b and e are recessive. The genes follow the Mendelian law of
independent assortment. Black dogs must have at least one dominant allele for both B
and E. Chocolate colored dogs must have at least one dominant B, and be homozygous recessive for e. True yellow dogs must be homozygous recessive at both
loci. If two dogs with genotypes BbEe and BbEe are bred, what is the probability that
they will have a puppy that has the genotype of a true yellow dog?
A. 1 in 16
B. 3 in 4
C. 3 in 16
D. 9 in 16
Answers
Answer: 3 in 16
Explanation: BbEe provides the most possible combinations for offspring in labs. This is because each dog can possibly give two of any of the genes. Yellow labs can only have two little e genes (ee), if they have a single E gene, they will either be brown or black. But within the ee genes, they can have two other combinations of their other genes. All combinations for a yellow lab are:
Bbee
BBee
bbee
But those are only the yellow combinations, there are 13 other combinations. Making it a 3/16 chance.
what are some moons with ice and rocks?
Answers
Answer:
There are only two large rocky moons in the Solar System: the Earth's Moon and Io. The other moons have interiors with a varying ratio of ice : rock, and have surfaces that are made almost entirely of ice.
Explanation:
What is special about australia’s ""fairy penguin"" species?.
Answers
Answer:
Fairy penguins (Eudyptula minor), also known as little penguins, are tiny, slate-blue animals found along the coastlines of southern Australia and New Zealand. Not only are they more colorful than most aquatic birds, but they're also notably smaller, growing to be less than a foot tall and about 2.5 pounds.
Explain how to distinguish different species by their DNA.
Answers
DNA analysis can be used to distinguish different species by comparing specific regions of their DNA sequences.
To distinguish different species by their DNA, scientists primarily focus on comparing specific regions of the DNA sequences that are highly variable among species. One commonly used region is the mitochondrial DNA (mtDNA), which is inherited maternally and has a higher mutation rate compared to nuclear DNA. Another region is the ribosomal RNA genes (rRNA), which exhibit variations among species.
The process typically involves extracting DNA samples from different organisms, isolating the target region of interest, and sequencing the DNA to determine the nucleotide sequence. The sequences obtained from different species are then compared to identify differences and similarities.
These differences can be used to create DNA profiles or genetic markers specific to each species. Advanced techniques such as DNA barcoding or whole-genome sequencing can provide more comprehensive information and aid in species identification.
By comparing DNA sequences, scientists can uncover genetic variations unique to different species, allowing them to distinguish and classify organisms accurately. This information is valuable in various fields, including taxonomy, conservation biology, forensic science, and evolutionary research.
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6. There are four errors in the passage below. Highlight/underline them and make corrections.
Plants use all of the glucose they produce for respiration. All of the oxygen released in photosynthesis is released by plants; some of it is needed for anaerobic respiration. Because there is a net release of oxygen, we have an oxygen-rich atmosphere on Earth to support other animals. Animals can’t use solar energy directly, but plants convert solar energy into kinetic energy in the form of glucose and other organic molecules and this transfers through the food chain to animals.
Answers
Answer: Plants use all of the glucose they produce for respiration. All of the oxygen released in photosynthesis is released by plants; some of it is needed for anaerobic respiration. Because there is a net release of oxygen, we have an oxygen-rich atmosphere on Earth to support other animals. Animals can’t use solar energy directly, but plants convert solar energy into kinetic energy in the form of glucose and other organic molecules and this transfers through the food chain to animals.
Explanation Corrected version
Plants do not use all of the glucose they produce for respiration. All of the oxygen released in photosynthesis is released by plants; some of it is needed for aerobic respiration. Because there is a net release of oxygen, we don't have an oxygen-rich atmosphere on Earth to support other animals. Animals can’t use solar energy directly, but plants convert solar energy into chemical energy in the form of glucose and other organic molecules and this transfers through the food chain to animals.
If the snake were removed from the ecosystem, which organism would immediately be impacted? (6b)
A.
The mouse population would increase because one of their predators was removed.
B.
The rabbit population would increase because one of their predators was removed.
C.
The mouse population would increase because they have less competition.
D.
The rabbit population would increase because they have less competition.
Answers
Answer:
A or B
Explanation:
What ever is right under the snake in the food chain.
the initial consequences of oxygenic photosynthesis are: removal of carbon dioxide and replacement of molecular oxygen in the environment. increase of molecular oxygen concentration in the atmosphere over time.
Answers
The consequences of oxygenic photosynthesis are to produce carbohydrates, light energy transfers electrons from water (H2O) taken up by plant roots to CO2.
What is oxygenic photosynthesis?Oxygenic photosynthesis is defined as a non-cyclic photosynthetic electron chain in which water serves as the initial electron donor and, as a result, molecular oxygen is liberated as a byproduct.
An oxygenic photosynthesis is defined as the phototrophic process in which light energy is captured and converted to ATP without oxygen production.
Thus, the consequences of oxygenic photosynthesis are to produce carbohydrates, light energy transfers electrons from water (H2O) taken up by plant roots to CO2.
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Overexpression of Caldesmon Is Associated With Lymph Node Metastasis and Poorer Prognosis in Patients With Oral Cavity Squamous Cell Carcinoma
Answers
The citation you provided is a reference to a scientific article titled "Overexpression of Caldesmon Is Associated With Lymph Node Metastasis and Poorer Prognosis in Patients With Oral Cavity Squamous Cell Carcinoma.
It suggests that the article investigates the association between the overexpression of caldesmon and lymph node metastasis as well as prognosis in patients with oral cavity squamous cell carcinoma (OCSCC). Caldesmon is a protein involved in regulating the contraction of smooth muscle cells and is associated with various cellular processes.
The article may present research findings or observations indicating that increased expression of caldesmon is correlated with a higher likelihood of lymph node metastasis, which refers to the spread of cancer cells to nearby lymph nodes, as well as a poorer prognosis in patients with OCSCC. Understanding the molecular markers and factors that contribute to disease progression and prognosis can aid in patient management and treatment decisions.
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write out five examples each of food chain in terrestrial and aquatic habitat
Answers
Answer:
1.) Sun, Sea water plant, bottom feeder fish, shark,
Explanation:
I have done those questions before and I just gave a basic answer but Sun is always at the top because it gives energy for plants which is normally second like for example: Sun, Grass, Grass hopper, Snake, Bird, Spider (that eats birds or something)
Which of the following correctly describes the arrangement of the phospholipids in the lipid bilayer of the cell membrane? *
Phospholipids line up head to head, so the phosphate heads are separated from water.
Phospholipids line up head to tail, because opposites attract.
Phospholipids line up tail to tail, so the fatty acid tails are separated from water.
Phospholipids line up with no pattern, because they're molecules which move randomly.
Answers
Answer:
Two layers of phospholipids where the outer layer has the hydrophilic heads facing toward the outside of the cell and the inner layer have the hydrophobic tails facing toward the inside of the cell.
which of the following statements about heavy metals is true? group of answer choices they are all harmful to human health even at trace levels they are all necessary to carry out human cell processes none of the choices. their specific gravity exceeds that of water by five or more times. all of the choices.
Answers
Heavy metals can be harmful to human health even at trace levels.
Heavy metals such as lead, mercury, cadmium, and arsenic are known to be toxic and can cause a range of health problems in humans. Exposure to these metals, even in small amounts, can lead to neurological, developmental, and reproductive issues. They can also accumulate in the body over time and cause long-term damage.
Therefore, the statement that heavy metals are all harmful to human health even at trace levels is true. It is important to limit exposure to these metals through proper handling and disposal of hazardous materials and by avoiding contaminated food and water sources.
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help me with this lol
Answers
Answer:
both animal cells and plant cells have mitochondria
Explanation:
A person says "What if biological factors associated with maleness - such as testosterone levels - contribute to aggressive tendencies, which are then fostered and reinforced through social and cultural norms, which then further influence men's testosterone levels? This reciprocal and interactive influence of sex as biological and gender as socialization becomes very difficult to disentangle the root cause of any observed aggression differences between women and men." What is this person making reference to? A. The concept of "doing gender". B. The false dichotomy of sex and gender. C. The invisibility of gender D. The gendering of the X and Y chromosomes.
Answers
Biological and social factors, the person challenges the false dichotomy of sex and gender and highlights the need for a more nuanced understanding of human behavior.
The statement highlights the idea that biological factors associated with maleness, such as testosterone levels, may contribute to aggressive tendencies. However, these biological factors are not the sole determinants of aggression. The person suggests that social and cultural norms play a significant role in fostering and reinforcing aggressive behavior in men. This interaction between biological factors and socialization makes it challenging to identify the root cause of observed aggression differences between women and men.
The false dichotomy of sex and gender refers to the misconception that sex (biological differences) and gender (socially constructed roles and behaviors) are strictly separate and independent. This perspective fails to acknowledge the complex interplay between biology and socialization in shaping human behavior.
In this case, the person recognizes that testosterone levels, a biological factor associated with maleness, can influence aggression. However, they also emphasize that social and cultural norms play a crucial role in how aggression is expressed and reinforced within different genders. The reciprocal and interactive influence between biology and socialization makes it difficult to disentangle the root cause of observed aggression differences between women and men.
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The number of primary bronchi match the number of ________ that we have.
Answers
l
Si se aparean especies diferentes como por ejemplo el cruce entre caballos y burros; podemos afirmar que si llegan a tener descendencia esta va ser __________________________
Answers
Answer:
El híbrido va a ser esteril.
Explanation:
En la cruza entre dos especies distintas, cuando ocurre, existen distintos mecanismos de aislamiento reproductivo, que son barreras que inhiben o interrumpen el flujo génico entre especies distintas. Es decir que no habrá exito reproductivo de estas cruzas. Se trata de caracteres biológicos propios de cada especie que previenen la reproducción con otras especies.
Estos mecanismos de aislamiento reproductivo pueden ser precigóticos o postcigóticos.
1.Pre-copulatorios o pre-cigóticos:
Ecológico o por aislamiento de hábitat; Estacional o temporal; Sexual o etológico; Mecánico; Por incompatibilidad de gametas.2. Post-copulatorios o cigóticos:
Inviabilidad del híbrido; Esterilidad del híbrido; Híbrido con viabilidad o fertilidad disminuido; Interacciones citoplasmáticas.La mula es producto de la cruza entre dos especies distintas: una yegua (Equus ferus caballus) y un burro (Equus africanus asinus). Es un ejemplo de la accion de mecanismo poscigótico, en el cual se forma un híbrido viable esteril. Este ejemplar puede nacer, crecer y sobrevivir, pero que no puede producir gametas funcionales, por lo cual no puede reproducirse.
Arrange the steps tO outline phosphorylation of serine residue by protein kinase First stcp Lust stcp Anawor Bunk
1. ADP relcased fron the active sitc of the Xinase.
2. ATF binds t0 the active site of the kinase.
3. The y-phosphate trom ATP is tansferred (0 the hydroxyl group of serine residue within the substrale
4. The substrale binds t0 the #ctive site 0f the kinase.
5. Thc phosphorylated substrate is releascd tron} the active site Of the kinase
Answers
Phosphorylation of a serine residue by a protein kinase involves the transfer of a phosphate group from ATP to the hydroxyl group of a serine residue within a protein substrate.
What are the steps involved in phosphorylation of serine residue by protein kinase?The substrate binds to the active site of the kinase.ATP binds to the active site of the kinase.The phosphate from ATP is transferred to the hydroxyl group of the serine residue within the substrate.ADP released from the active site of the kinase.The phosphorylated substrate is released from the active site of the kinase.This is the correct order of events in the phosphorylation of a serine residue by a protein kinase. The kinase enzyme first binds to its substrate, followed by ATP binding to the active site. The phosphate group from ATP is then transferred to the hydroxyl group of the serine residue within the substrate, leading to the phosphorylation of the substrate. Finally, ADP is released from the active site of the kinase, and the phosphorylated substrate is released, completing the phosphorylation reaction.
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The building blocks of proteins are
1. amino acids
2. nucleotides
3. base pairs
Answers
Answer:
amino acids
Explanation:
proteins are made up of amino acids!
What differences do you notice between what happens in the Rest activity level and what happens in the Jog activity level?
please help i give the 20 pt or more or 50
Answers
The Rests activity level and what happens in the Jog activity level It is lower while you are asleep and at rest and higher while you exercise.
When you exercise your muscles need extra oxygen. That's about three times more than when the muscle is resting. This need means that your heart beats faster and your pulse quickens. Frequent exercise strengthens the heart and helps circulate blood throughout the body. A stronger heart means more blood is pumped through the body each time the heart beats.
This makes the heart beat less and distributes the same amount of blood. Heart rate can increase dramatically from a resting heart rate of 60-80 beats per minute to a maximum heart rate of about 200 in young adults. Running redirects blood flow to the tissues that need it most. For example muscles in the leg, and arteries relax, and blood flow increases. Endurance exercise increases parasympathetic activity and decreases sympathetic activity in the resting human heart.
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can anybody help me out??
Answers
Which organelle is responsible for giving plants colors other than green?
vacuole
chloroplast
mitochondria
lysosome
DNA is organized into structures called
microtubules
chromosomes
thylakoid stacks
nuclei
Answers
Answer:
chloroplast
chromosome
Explanation:
same
Answer:
Correct answer is vacuole.
Explanation:
Vacuoles containe anthocyanin pigment which makes vacuoles to appear in different colour such as red, blue and purple.
DNA is organized into structures called chromosomes.
Chromosome is made up of DNA tightly coiled many times around protein histone.
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When scientists analyzed drilling samples from the Glomar Challenger study, which discovery did they make about rocks in relation to a mid-ocean ridge?
ANSWER: A
Answers
Answer:
When scientists studied patterns in the rocks of the ocean floor, they found more ... Making Models What characteristic of the ocean floor did you observe as you swept ... recorded the magnetic memory of rocks on both sides of a mid-ocean ridge. ... The Glomar Challenger, a drilling ship built in 1968, gathered the samples.
Explanation:
Glomar Challenger: Drillship of the Deep Sea Drilling Project. It was on June 24, 1966, that the Prime Contract between the ... One of the most important discoveries was made during Leg 3. ... After analysis of samples, scientists concluded that the ocean floor is probably no older than 200 million years.
Answer:
the answer is a i just took the test i got it on edge
Explanation:
What is the correct Answer?
Answers
What is the metabolic advantage in the conversion of glucose to lactate, in which there is no net oxidation or reduction?.
Answers
The fructose-6-phosphate + ATP reaction The glucose + ATP reaction the metabolic advantage in the conversion of glucose to lactate.
Decreased thermodynamic efficiency will bring about accelerated weight reduction. The legal guidelines of thermodynamics are silent at the life of variable thermodynamic performance in metabolic processes. therefore such variability is authorized and can be related to variations in weight lost.
The methods of making and breaking down glucose molecules are each examples of metabolic pathways. A metabolic pathway is a chain of related chemical reactions that feed each other. The pathway takes in a single or extra starting molecules and, via a sequence of intermediates, converts them into merchandise.
Dietary supplements claiming to reinforce your metabolism may also have little or no benefit and can include substances that have extreme side effects. How a whole lot you weigh in large part depends on the choices you make about food and what kind of bodily activity you get. To shed pounds, you want to burn greater energy than you are taking in.
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What nitrogen base in found in RNA but not in DNA?
Answers
Answer: It is Uracil!
Explanation: In single-stranded RNA, uracil is the only nitrogenous base found. In DNA, it is not found.
why does climate change as you move from the equator to the north and South Pole
Answers
Answer:
Temperature range increases with distance from the equator. Also, temperatures decrease as you move away from the equator. This is because the suns rays are dispersed over a larger area of land as you move away from the equator. This is due to the curved surface of the earth.
double checking
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Answers
The first one looks like the esophagus
3rd one- lungs
4th one diaphragm
Which of the following scenarios can be classified as a negative feedback loop?
a increase in blood pressure to reduce heart rate
b increase in testosterone to help increase a fight-or-flight response
c increase in oxytocin caused by increased contractions
d increase in platelet production to help increase blood clotting
Answers
Answer:
The scenario that can be considered an example of a negative feedback loop is increase in platelet production to help increase blood clotting (option d).
Explanation:
Negative feedback loop is what occurs when a change occurs in the body, producing a response that decreases or stops that change, with the intention of maintaining homeostasis.
When there is a wound that produces bleeding, a series of mechanisms are activated, the coagulation cascade, which promotes the release of factors that allow the formation of clots. The increased release of platelets implies negative feedback because it helps to stop the change that occurs in the body, the loss of blood, through the formation of clots.
One thing that can cause confusion is the fact that this response also involves positive, though limited, feedback that promotes the production of clotting factors and platelets to increase clot formation. What really happens is that the positive feedback promotes the general feedback, which is the negative feedback: clot formation to stop the bleeding, restoring homeostasis.
The other options are not correct because:
a. Increase in blood pressure to reduce heart rate is not possible.
b. In the fight and flight response the hormones involved are cortisol and adrenaline, not testosterone.
c. Increased oxytocin in response to uterine contractions is positive feedback.
Which of the following organelles is the site of aerobic respiration?" Nucleus Cytoplasm Chloroplast Mitochondrion
Answers
how does the use of synthetic products impact the natural resource from which they are derived ???
I NEEDDDD HELPPPPPP!!!!!! you will get 16 points....
Answers
Natural resources are used to create synthetic materials.
Synthetic materials are created by chemically altering the starting substances to produce a material with distinct properties.
What is the importance of synthetic materials?The elasticity of synthetic fibers is excellent. They are not easily wrinkled. Fabrics made from these fibers are less expensive, more durable, and more widely available than natural fibers. Synthetic fibers can withstand high loads without breaking.A variety of advantages are provided by synthetic materials. They may be less expensive to produce than natural materials, and they may also perform better. However, synthetic materials pollute the environment more than natural materials, and they can sometimes be harmful to our health.To learn more about : Synthetic materials
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