Why did the size of the caribou population decrease?

Answer:

False

Explanation:

The MC1R and Agouti genes are responsible for pigmentation in humans and other animals. A study has proven that an allele causing yellow pigmentation (auv) is subject to maternal imprinting in mice, while the regular allele (a) does not go through maternal imprinting and produces dark coloration. In the offspring, we should expect a non-uniform pattern of inheritance, with the maternally inherited auv allele causing yellow pigmentation and the paternally inherited regular allele causing dark pigmentation.

Imprinting refers to the gene expression phenomenon where the genetic material from one of the parents is preferentially silenced. In the case of a maternal imprinting of the auv allele in mice, only the maternally inherited allele will express yellow coloration, while the paternal allele that is inherited by the offspring will have no effect on pigmentation. As a result, the offspring that receive a maternal auv allele will display yellow pigmentation, and those who do not will display the dark coloration associated with the regular allele a.The inheritance pattern will be non-uniform as the phenotype depends on whether the offspring has inherited the maternal allele that is imprinted or the paternal allele.

Therefore, the results will be different if the allele that undergoes imprinting comes from the mother rather than the father, illustrating the importance of epigenetic modifications in gene expression and how these can result in non-Mendelian inheritance patterns.

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Answer:

The overall percentages of bases were different from one organism to the next.

Answer:

The correct answer is c!:)

Explanation:

Hope this helps!:)

Answer:

please give me brainlist and follow

Explanation:

Thanks to decomposers, nutrients get added back to the soil or water, so the producers can use them to grow and reproduce. Most decomposers are microscopic organisms, including protozoa and bacteria. ... Instead, fungi get all their nutrients from dead materials that they break down with special enzymes.

Answer:

Homology

Explanation:

Homology, in biology, similarity of the structure, physiology, or development of different species of organisms based upon their descent from a common evolutionary ancestor.

Answer: The absorbed energy warms the atmosphere and the surface of the Earth. This process maintains the Earth's temperature at around 33 degrees Celsius warmer than it would otherwise be, allowing life on Earth to exist. Greenhouse gases keep our planet livable by holding onto some of Earth's heat energy so that it doesn't all escape into space. This heat trapping is known as the greenhouse effect. Just as too little greenhouse gas makes Earth too cold, too much greenhouse gas makes Earth too warm.

Explanation:

Answer:

The answer is 0 ( AKA A )

Explanation:

Parents form the same type of gene, which is Rr. Since all the genes are the same, there can not be a chance that the offspring can not roll the tongue. Next time focus on your work!! :3

Answer:

A. they pretty much all think there is global warming

Answer:

it is  

a.

Scientists generally agree that global warming is taking place.

Explanation:

edge 2021

A monohybrid cross is created when a white-flowered pea plant and a purebred purple-flowered pea plant mate. One plant was tall, while the other was small. They were both homozygous. Hence (c) is the correct option.

A tall plant's genotype (genetic makeup) was TT, while a short plant's genotype was tt. Mendel crossed the two plants, resulting in F1 generation (first filial generation) offspring or descendants. Two alleles of a single gene control the colour of seeds. The green-seed gene is recessive, whereas the yellow-seed allele is dominant. All of the F1 hybrid progeny had yellow seeds when true-breeding plants were crossed, when one parent had yellow seeds and the other had green seeds.

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The only statement that is true for both the somatic and autonomic nervous systems is that they both respond to stimuli. Here option C is the correct answer.

The somatic nervous system and the autonomic nervous system are two major divisions of the peripheral nervous system. While they have distinct functions and control different aspects of our body, they do share certain similarities.

One such similarity is that both the somatic and autonomic nervous systems respond to stimuli. Stimuli can be internal or external changes that activate sensory receptors, triggering a response in the nervous system.

In the somatic nervous system, stimuli are detected by specialized sensory receptors, such as those responsible for touch, temperature, and pain, and the information is transmitted to the central nervous system for processing. In the autonomic nervous system, stimuli can include changes in the internal environment, such as blood pressure, body temperature, or the presence of certain hormones.

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Answer:

Microwave ovens work by using 2.45 GHz frequency electromagnetic waves know as microwaves to heat the water in food.

a microwave oven uses microwaves to heat food. Microwaves are a type of wave that are sandwiched between radio waves and infrared radiation on the electromagnetic spectrum.

Explanation:

- Eijiro <3

Answer:

Cyanobacteria are blue-green algae that produce chlorophyll and undergo photosynthesis. Oxygen, a byproduct of that photosynthesis, was released into the atmosphere, changing it in such a way that it may have allowed the evolution of more complex forms of life.

Explanation:

Right on ED2021 practice, goodluck! :) Happy holidays!

The following nutritional component will the nurse encourage a patient to consume as it is needed for erythropoiesis is Cobalamin or Vitamin B12.

What is erythropoiesis?

Erythropoiesis is the process by which red blood cells (erythrocytes) are formed. The body's bone marrow contains stem cells that can develop into red blood cells. The average lifespan of a red blood cell is approximately 120 days before it is broken down and eliminated by the body.

What is Cobalamin or Vitamin B12?

Cobalamin, also known as Vitamin B12, is a water-soluble vitamin that aids in the formation of red blood cells and DNA, as well as the proper functioning of the nervous system. Vitamin B12 is primarily found in animal products, including beef, pork, poultry, eggs, and milk, so vegetarians and vegans may have difficulty obtaining enough vitamin B12 from their diet.A deficiency in vitamin B12 can result in anemia, or a reduction in the number of red blood cells, which can lead to fatigue, weakness, and other symptoms. A patient with a vitamin B12 deficiency may need to take supplements or receive injections in order to replenish their body's stores of this essential nutrient. A nurse would advise the patient to consume cobalamin or vitamin B12 as the nutritional component for erythropoiesis as it is needed for the formation of red blood cells.

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Answer:

Pangaea, which looked like a C, with the new Tethys Ocean inside the C, had rifted by the Middle Jurassic, and its deformation is explained below.

Explanation:

Answer:

GUA

Explanation:

Hello There!

These are the base pairs for transcription

IMPORTANT

when transcribing; Adenine transcribes to Uracil not Thymine

so it would be

Adenine to Uracil

Thymine to Adenine

Cytosine to Guanine

Guanine to cytosine

so we want to find the mRNA codon of the dna sequence CAT

Cytosine to Guanine (G)

Adenine to Uracil (U)

Thymine to Adenine (A)

your answer is GUA

The Fenton reaction refers to the transformation of hydrogen peroxide (H2O2) and Fe(II) into hydroxyl radicals and Fe(III), and it is a crucial element in the oxidative stress response in all living organisms. The hydroxyl radicals produced by the Fenton reaction, also known as reactive oxygen species (ROS), are highly toxic and can inflict damage to proteins, lipids, carbohydrates, and nucleic acids.

The Fenton reaction plays a crucial role in host defense mechanisms against bacterial and viral infections by damaging the genome of pathogens. However, this protective mechanism can also cause damage to host cells if unregulated or induced in response to elevated levels of ROS. Under normal physiological conditions, the Fenton reaction is tightly regulated by various enzymes, including catalase, peroxidase, and superoxide dismutase.

The Fenton reaction is also important in the degradation of organic pollutants, such as pesticides, and the removal of heavy metals, such as lead, from contaminated environments.

The presence of high levels of iron in biological systems, coupled with exposure to toxic chemicals, can lead to the production of high levels of ROS, causing oxidative stress and leading to a range of health issues.The significance and relevance of the Fenton reaction in organisms can, therefore, be described as both beneficial and detrimental. It is a vital mechanism in host defense and pollutant degradation, but can also cause damage to cells when unregulated or in response to high levels of ROS.Reduced glutathione (GSH) and Metallothionein (MT) are two important molecules involved in the detoxification process. GSH is a tripeptide composed of glutamate, cysteine, and glycine that plays a crucial role in redox homeostasis, xenobiotic metabolism, and regulation of immune function. GSH is involved in the detoxification of various toxins, including heavy metals, and can act as a ROS scavenger to protect cells from oxidative stress.

Metallothioneins (MTs) are small, cysteine-rich proteins that play a crucial role in the homeostasis of essential metals, such as zinc and copper, and the detoxification of heavy metals, such as cadmium, lead, and mercury. MTs act as metal chelators, sequestering heavy metals and reducing their toxicity, and can be induced in response to exposure to toxic metals. MTs can also act as ROS scavengers, reducing the damage caused by oxidative stress.

Overall, both GSH and MT play crucial roles in the detoxification process, reducing the toxicity of heavy metals and protecting cells from oxidative stress.

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Answer:

In order from top to bottom

C

A

E

D

B

Explanation:

1) Reflection is when a ray hits something reflective then bounces back. For example, light reflects off a mirror, which is why you can see yourself in a mirror.

2) Wavelength measures the size of a wave. It is measured from the crest or trough of one wave to the crest or trough of another.

3) Refraction occurs when waves go through different mediums at different speeds. This is why a straw looks bent when in water.

4) Frequency is a way of measuring the speed of a wave. It shows how many waves pass every unit of time.

5) Absorption means that all of the waves were absorbed into the medium and none of them passed through.

Answer:

Involuntary

Explanation:

Hope that helps ;)

Answer:

Involuntary

Explanation:

Cardiac muscle is also an involuntary muscle, found only in the heart. The cardiac muscle fibers all contract together, generating enough force to push blood throughout the body.

Answer:

This trait is rare when it occurs. Some genes depend on other genes to be expressed, so in most cases a trait is denied an expression. But its still there, so it passes down to generation until it gets expressed.

Explanation:

Answer:

Because it's a recessive trait

Explanation:

There are two chromosomes that determine your biological sex: XX for the female and XY for the male. You inherit one X chromosome from your mother and one X or Y chromosome from your father, which is what determines your sex.

A certain inheritable genetic condition can be recessive or dominant. If it's dominant, it shows even if just one chromosome carries that condition. If it's recessive, it has to be in both ones (or just the x one or just y if you're male. That's why some conditions, such as daltonism, affect men more that women).

For example, blue eyes are a recessive trait, brown eyes are a dominant trait. If your parents are both blue eyed, you will surely have blue eyes as well. The same can't be said if both of your parents have brown eyes: they might still be carrier of the blue eyed trait (both of them have to), in which case you would have a 25% chance (1/4) to have blue eyes (½ to inherit the carrier chromosome from your mother; ½ from your father). The same can be said about albinism

Explanation:

What is the name of this website or the book?

Answer:

Industrial pollution is a negative consequence of the application of scientific knowledge.

Explanation:

Restriction enzymes have a significant role in genetic engineering. They cleave DNA at specific sites and make it possible to splice DNA from one source into a vector or plasmid in a desired position. Vectors and plasmids are essential tools in genetic engineering. They are widely used to introduce foreign DNA into bacteria. They serve as a vehicle to carry foreign DNA into cells.The role of restriction enzymes in genetic engineering

Restriction enzymes are used to cleave DNA at specific sites, and the fragments obtained are spliced into a vector or plasmid in a particular orientation. The use of restriction enzymes in genetic engineering enables scientists to create specific fragments of DNA that can be precisely placed into a vector or plasmid.Vectors in genetic engineering. Vectors are used to introduce foreign DNA into bacteria. They are widely used in genetic engineering as a delivery mechanism for DNA. A vector is a DNA molecule that is used to carry foreign DNA into cells. The foreign DNA is then replicated along with the host DNA. A vector may also be used to express genes for therapeutic purposes.Plasmids in genetic engineering. Plasmids are another essential tool in genetic engineering. Plasmids are small, circular DNA molecules that replicate independently of the host DNA. They are often used to introduce genes into cells and are useful in gene therapy research. Plasmids can also be used to clone DNA fragments. They can be transferred between bacteria by a process called conjugation.

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By the age of one year, cereals, vegetables, fruits, and other foods containing protein should account for 66% of an infant's total daily food energy. Hence (c) is the correct option.

For developing newborns, the majority of their energy comes from the fatty component of human milk, which accounts for 45% to 55% of their overall energy. Another method to generalise caloric needs is to say that a newborn needs 100 calories per kilogramme per day, a child from ages 1 to 3 needs 80, a child from ages 4 to 5 needs 70, a child from ages 6 to 8 needs 60 to 65, and a child from ages 9 and up needs 35 to 45. The body uses 25% of its energy to produce breast milk, compared to 20% for the brain.

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Answer:it’s C

Explanation:

Answer:

Branching into two different parts, think of a tree, the trunk of a tree will branch into two equal parts, and then continue growing at about the same rate.

Answer:

4. Absorb extra fluid between the cells

Explanation:

The nervous system (SN) is a complex system that acts to receive sensory information through nerves, transmit this information via the spinal cord and finally process it in the brain. The SN has three main roles: sensory input, processing and motor output. The SN can be divided into the central nervous system (composed of the brain and spinal cord), and the peripheral nervous system (composed of those nerves located outside the brain and spinal cord). Moreover, the extracellular fluid between the cells comprises four types of fluids: 1-intravascular fluid (blood), 2-interstitial fluid, 3--transcellular fluid and 4-cerebrospinal fluid. The excess of these fluids is absorbed by the capillaries of the lymphatic system.