What are the monomers of the following biomolecules:
A. Carbohydrate
B. Lipid
C. Protein
D. Nucleic Acid

The correct option is E ;  Negative; positive; smaller , DNA, because it has a Negative charge, moves to the positive end of the field in gel electrophoresis; smaller DNA molecules migrate the most quickly.

Gel electrophoresis is an essential technology used in molecular biology and clinical chemistry. This procedure entails examining DNA and RNA fragments based on charge and size. Agarose gel has a lower resolving power.

Because the charge on the phosphate group is negative, the total charge of the DNA is negative as well. Because DNA is negatively charged, it will be drawn to the positive electrode in the electrophoresis chamber. Very little DNA molecules will travel very quickly in comparison to bigger DNA molecules.

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Full Question ;

DNA, because it has a _____ charge, moves to the _____ end of the field in gel electrophoresis; _____ DNA molecules migrate the most quickly.

a. positive; positive; smaller

b. positive; positive; larger

c. positive; negative; smaller

d. negative; positive; larger

e. negative; positive; smaller

Answer:

c

Explanation:

its c i took the test

Answer:

Sustained high levels of sugars, as is found in diabetics, damages our cells and now is shown that can also increase our chance to get cancer: The dose makes the poison as Paracelsus said. It is well known that obesity is a leading cause of diabetes, a disease where the body fails to control blood sugar levels.

Explanation:

Answer:

rocks and sediments

Explanation:

On Earth, most carbon is stored in rocks and sediments, while the rest is located in the ocean, atmosphere, and in living organisms.

The B. Validity of the diagnosis has problems. Because Corey is frequently diagnosed with several sorts of anxiety disorders, the diagnosis would still be regarded credible (GAD, social phobia, and panic disorder).

However, the variability of the diagnosis causes Validity difficulties. The capacity to measure what a study wants to test is referred to as validity. The issue with several or inconsistent therapists is that each one may diagnose him with a different form of anxiety disorder, implying that they are assessing distinct diseases each time.

Unlike panic disorder, when anxiety comes spontaneously and/or focuses on when the next panic episode will occur, the emphasis of worry in GAD often revolves around normal living circumstances—finances, employment troubles, children, health.

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Answer:

Pine seeds develop in the bracts of the female pine cone and are not surrounded by fruit. The apple seed grows in the ovary of the apple flower and is surrounded by a fleshy wall that grows into the fruit.

Explanation:

How does the pine tree reproduce?

Male pine cones produce pollen, which is like a powder. The male cones release their pollen, which is carried around the air by blowing wind, and hopefully to another female pine cone on a different pine tree. If the pollen reaches a female pine cone, this process is called pollination

How does an apple tree reproduce?

Flowering plants --including the apple tree--reproduce by transferring pollen from the male organ or stamen of one blossom to the female organ or pistil of another. Some flowering plants require no pollinating partner--the flowers are sel- fertilizing.

Answer:

D

Explanation:

The seeds formed into trees whitch then broke up the dried lava and colonized the land.

The long, bushy tail of the raccoon may be a selective advantage for this species because the bushy tail helps keep the face warm during a snowstorm (Option d). In addition, it may serve as camouflage and also may act to communicate with other members of the population.

An evolutionary selective advantage is a feature in a species that confer an advantage to survive and reproduce in a particular environmental condition, which may be associated such as in this case to the tail in raccoons.

Therefore, with this data, we can see that an evolutionary selective advantage is any phenotypic feature that enhances the survival and or reproductive rate of individuals in a population or species.

Complete question:

The opossum is a new arrival in southern Ontario. Its niche is similar to that of the raccoon. An opossum has a long, bare, rat-like tail. A raccoon has a long, bushy tail. How is this a selective advantage for the raccoon?

selective advantage only applies to populations

the opossum  tail can grab onto a tree for balance

tail fur does not have an impact on survival

the bushy tail helps keep the face warm during a snowstorm

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Answer:

a. True

Explanation:

Answer:

The west coast/east coast because hurricanes happen in marine tropic tectonic plates that also cause heavy tropical storms,tsunamis, and hurricanes. So therefore hurricanes apear in west and east coast.

Explanation:

Answer:

The correct answer is - natural selection.

Explanation:

The change of an allele's frequency or microevolution in a particular population due to its fitness benefit it provides to the individuals of the population can be caused by the natural selection process. Relative reproductive success is a measure of Fitness.

The change of an allele's frequency in deleterious traits mostly decreases in a population and this process is known as adaptive evolution. There is no or very small number of relative reproductive success present.

Answer:

Natural selection

Explanation:

Answer: Yes

Explanation: Monocots produce one cotyledon, while dicots produce two. Because seeds are reproductive structures and thus important to a species' survival, plants have evolved many mechanisms to ensure their survival. One such mechanism is seed dormancy. Dormancy comes in two forms: seed coat dormancy and embryo dormancy

Answer:Plants that reproduce by seeds. Seed plants have special structures on them where male and female cells join together through a process called fertilisation. After fertilisation, a tiny plant called an embryo is formed inside a seed.

The trend that is evident is: Initially, there seems to be support for Mel's hypothesis, but the gold data is not consistent with the predicted trend.

Option C is correct.

The data for zinc, nickel, copper, and silver shows that as the density increases, the melting point tends to increase.

From the data we can see , the data for gold does not follow this trend, as its density is lower than silver but its melting point is higher.

Therefore, while there is some initial support for Mel's hypothesis, the inconsistency with gold indicates  that the relationship between density and melting point is not solely determined by density.

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Answer:

The population of juncos at the University of California, San Diego (UCSD) campus has become bolder than the mountain population over the last 60 years, and this change can be explained by the process of natural selection.

Juncos are small, sparrow-like birds that are found in a variety of habitats across North America. The UCSD campus population and the mountain population of juncos are two distinct groups that have evolved separately over time.

One important factor that drives the process of natural selection is the availability of resources, such as food and shelter. On the UCSD campus, the juncos have access to a variety of resources provided by humans, such as bird feeders and landscaped gardens. These resources allow the juncos to survive and reproduce more successfully than they might in the wild, leading to an increase in the population size.

As the population size increases, there is more competition for resources, and only the boldest individuals can access them. Over time, bolder individuals are more likely to survive and reproduce, passing on their genes for boldness to the next generation. As a result, the overall population becomes bolder over time.

In contrast, the mountain population of juncos likely has fewer resources available and faces more challenges in finding food and shelter. As a result, the selection pressure for boldness is likely to be weaker in this population, leading to less of a change in the overall level of boldness.

Therefore, the difference in the level of boldness between the UCSD campus population and the mountain population can be explained by the process of natural selection, which has favored bolder individuals in the campus population due to the availability of resources provided by humans.

Explanation:

The  wave which stimulates relaxation is called theta waves.

Theta waves are a type of brain wave that are generated by the electrical activity of neurons in the brain. They have a frequency of 4-8 Hz and are characterized by a slow and irregular pattern. Theta waves are most commonly seen during light sleep and deep meditation, and they are also associated with relaxation, drowsiness, and reduced stress and anxiety.

Theta waves are thought to play a role in processes such as learning and memory formation, as well as increased creativity and intuitive thinking. They are also associated with the production of serotonin and other neurotransmitters that regulate mood and well-being. Understanding the role of theta waves in brain function can provide insight into the neural mechanisms underlying various mental and behavioral processes.

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Answer:

By the definition of "carrier," Asha does not exhibit any physical features (phenotype) of the Nieman-Pick disease, but she carries an allele for this disease. In order for this to be possible, Asha must carry a autosomal dominant allele for this gene to mask the effects of carrying an allele for the.

Explanation:

By the definition of "carrier," Asha does not exhibit any physical features (phenotype) of the Nieman-Pick disease, but she carries an allele for this disease.

The similarity between parthenogenesis and sexual reproduction is “Parthenogenesis involves the formation of a zygote”

This method is alike to the fusion of an egg and sperm in sexual reproduction since it shapes a diploid nucleus from the fusion of two dissimilar cells. The resulting offspring is a homozygote and gets about half of its mother's genetic disparity. This type of parthenogenesis could make either a female or a male.

Komodo dragons are a sample of a species that can produce offspring both through sexual reproduction and parthenogenesis.

So we can conclude that Parthenogenesis in humans never make viable embryos,

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Answer:

No.

Explanation:

The number of chromosomes is not related to the complexity of the organism. Humans have a total of 2n=46 or 23 pairs of chromosomes while the average earthworm has 2n=36 or 18 pairs. The complexity of the organism is related to the way the chromosomes are structured inside of the organism.

Answer:

HIV attacks helper T cells.

Explanation:

The correct answer is that HIV attacks helper T cells, while a cold virus infection does not. That is in Option D, as an HIV (human immunodeficiency virus) infection and a cold virus infection are caused by two different types of viruses.

HIV is a retrovirus, which means that it contains RNA as its genetic material instead of DNA. When the virus infects a host cell, it uses an enzyme called reverse transcriptase to convert its RNA into DNA, which is then integrated into the host cell's genome. This allows the virus to hijack the host cell's machinery and produce more copies of itself, which can then infect other cells in the body. One of the main targets of HIV infection is the CD4+ T cell, also known as the helper T cell. Helper T cells play a key role in the immune system by helping to activate and coordinate other immune cells, such as B cells and cytotoxic T cells.

Hence, the correct answer is that HIV attacks helper T cells, while a cold virus infection does not. That is in Option D.

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Answer:

Tendonitis

Explanation:

When a part of the body becomes too overused it can cause the tendons(fiborous connective tissue) to swell and fluid will accumulate around the tendon which connects muscle to bone. Along with this the lining of the tendon can become inflamed which causes Tenosynovitis.

From punnett squares, we can get genotypic and phenotypic ratios  and probabilities among the progenies. Cross 1: genotypic ratio 1:2:1. Phenotypic ratio 3:1. Cross 2: 75% probability of having a white horn.

The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.

Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.

Cross 1:

Parentals) Ee   x   Ee

Gametes) E   e    E   e

Punnett square)   E     e

                      E    EE    Ee

                       e    Ee    ee

F1) Genotype

25% = 1/4 of the progeny is expected to be homozygous dominant EE

50% = 2/4 of the progeny is expected to be heterozygous, Ee

25% = 1/4 of the progeny is expected to be homozygous recessive, ee

    Phenotype

Genotypic ratio ⇒ 1:2:1 ⇒ 1/4 EE : 2/4 Ee : 1/4 ee

Phenotypic ratio ⇒ 3:1 ⇒ 3/4 one eye : 1/4 two eyes

Cross 2:

Parentals) Ww   x   Ww

Gametes) W   w    W   w

Punnett square)   W    w

                      W   WW   Ww

                       w   Ww   ww

F1) Genotype

25% = 1/4 of the progeny is expected to be homozygous dominant WW

50% = 2/4 of the progeny is expected to be heterozygous, Ww

25% = 1/4 of the progeny is expected to be homozygous recessive, ww

    Phenotype

Genotypic ratio ⇒ 1:2:1 ⇒ 1/4 WW : 2/4 Ww : 1/4 ww

Phenotypic ratio ⇒ 3:1 ⇒ 3/4 white horn : 1/4 brown horn

Offspring has 75% probability of having a white horn.

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Answer:

Intercellular transportation would not have occurred if there were no plasmodesmata.

Explanation:

Plasmodesmata are intercellular pores connecting adjacent plant cells allowing membrane and cytoplasmic continuity and are essential routes for intercellular trafficking, communication and signaling in plant development and defense

Exchange of molecules and chemical signals between the two adjacent plant cells will not take place.

Plasmodesmata forms the connections between the two adjacent plant cells through the exchange of cytoplasmic content.

Plasmodesmata forms channels or pores in the membrane through which the cellular components like endoplasmic reticulum, plasma membrane and cytoplasm of two nearby plant cells are connected.

A connection formed between the plant cells through plasmodesmata facilitate exchange of cellular content. This is important for transport of substances across the cells.

Plasmodesmata facilitate movement of nutrients in plant cells. It is also helpful in transport of proteins and hormones.

Plasmodesmata is also important as it serves the function of cell division in plants. It is formed during cytokinesis.

Plasmodesmata are the type of cell junctions and are similar to gap junctions found in animals.

Therefore, plasmodesmata is dynamic for plants cellular activities.

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The cutting down of trees while constructing a new highway can affect the populations of ospreys and fish at a nearby river reduces habitat fragmentation and can reduce the popullation.

Fragmentation  do take place as a rsult ofhow the parts of a habitat are destroyed,  which do bring about the remnats of the smaller unconnected areas it can be seen to happen naturally, as a result of fire  as well as due to human activity.

Besides the direct habitat loss  as a result of the road itself,  the  animal species, can be destroyed and the water-flow patterns, as well as pollution, can take place creating disturbance that alters the species composition .

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Answer:

Check the attached document. The answer is more than 5,000 characters

Explanation:

Answer:

Fungi doesn't belong to animals, plants, or bacteria.

Explanation:

Fungi are a group of living organisms which are classified in their own kingdom.

Answer:

Elastic strength is the ability of a muscle to absorb, store, and release energy. The more energy the muscle releases, the faster and more powerful the movement. The fact that the heart pumps 2,500 gallons (9,450 liters) of blood daily makes it the muscle with the greatest elastic strength.

Explanation:

Answer:

During electrophoresis, DNA fragments move toward the anode, which indicates that it has a negative charge.

Explanation:

The electrophoresis or gel electrophoresis of DNA, is a procedure that allows the separation of DNA fragments, according to their size. The presence of phosphate groups -present in the strands- gives the DNA the negative charge that induces it to move towards the anode during electrophoresis.

Each DNA fragment has a specific size and charge, and electrophoresis the fragments of equal size or charge are grouped in the same place in the gel.

The other options do not apply because:

   A. It is very small and C. It has a positive charge. D. It has a high molecular weight. The size of the DNA fragment does not influence its electrophoretic behavior.

   B. It has a positive charge.  DNA is negatively charged, due to the presence of phosphate groups in the molecule.