: what makes multidrug efflux pumps such a dangerous resistance mechanism? choose one: a. they are low energy systems so are inexpensive to the bacterium. b. while they are limited to very few pathogens right now, the potential from spread is high. c. they are found naturally in non-pathogenic strains so will appear in emerging diseases. d. they can export a wide range of antibiotics almost regardless of structure.

Answer:

Genotype - Yy                                                                                Y - Yellow

Phenotype - Yellow green                                                            y - Green                                        

Seasonal color changes are the unique adaptation that helps snowshoe rabbits to survive in the taiga.

The organisms that inhabit the taiga and alpine biomes have evolved special adaptations to help them survive. One of the creatures inhabiting the taiga biome is the snowshoe rabbit. It is exceptional in that it can remain unseen while hiding from predators in the snow in the winter and in woody areas in the summer. The organisms that inhabit the taiga and alpine biomes have evolved special adaptations to help them survive. One of the plants that may be found in the alpine biome is the moss campion. It is shielded from the wind and subfreezing cold in the alpine by its thin leaves and cushion-like shape.

Hence, organism characteristics decides  its survival in different biome.

To know more about Biomes.

https://brainly.com/question/18601179

#SPJ4

Helper T cells stimulate the B cell via the binding of CD40L at the T cell to CD40 on the B cellular, thru interaction of different TNF-TNF-receptor circles of relatives ligand pairs, and by way of the directed release of cytokines.

Helper T cells do now not directly kill inflamed cells, as cytotoxic T cells do instead, they help spark off cytotoxic T cells and macrophages to attack inflamed cells, or they stimulate B cells to secrete antibodies.

Helper T cells no longer immediately kill infected cells, as cytotoxic T cells do. as a substitute they assist activate cytotoxic T cells and macrophages to assault inflamed cells, or they stimulate B cells to secrete antibodies.

Learn more about Helper T cells here

https://brainly.com/question/14902979

#SPJ4

Antibodies are capable of binding up several antigens in order to reduce infectious agents that need to be dealt with, this function of antibodies is known as agglutination.

Antibodies are proteins that defend you while an unwanted substance enters your body. Produced via your immune device, antibodies bind to these undesirable substances which will put off them out of your gadget.

Antibodies are proteins produced by means of the immune gadget in reaction to contamination. They're an vital part of the frame's defence device as they work to smash sickness-causing organisms and block them from infecting human cells.

Antibodies are positioned in various areas of your frame, such as your skin, lungs, tears, saliva and even breast milk. In reality, high quantities of antibodies are present in colostrum.

Learn more about Antibody here:-https://brainly.com/question/15382995

#SPJ4

The modern human is thought to have the largest cranium, measuring between 120 and 1700 cubic centimetres 3. The head shrank in size and grew more compact, reaching its widest point at the base of the skull.

Brain/body size ratio = cranial capacity (in cubic centimetres). body mass (in kg) Complete the table with the specified species. Species skull capacity (cc) Body Weight Approximation on Average (kg) Body to Brain Ratio gorilla 395 54 7.31 chimpanzee 506 120 4.22 6. The scapular is extended at the suprascapular area and is shorter and broader, making it more mobile and arboreal, whereas the humeral head is rounded and globular. These faunal remains were discovered at Station 1 with the specimen at Station 2 Paleoenvironment.

To learn more about cranium please click on below link

https://brainly.com/question/14011479

#SPJ4

The starting material for whole-genome shotgun sequencing of genomic DNA is overlapping fragments of genomic DNA.

The DNA sequence of an organism's genome can be ascertained in a lab using shotgun sequencing. The process entails randomly dividing the genome into tiny DNA fragments that are then individually sequenced. To reconstruct the genome, a computer program searches for overlaps in the DNA sequences and uses those overlaps to put the fragments back together in the right order.

Shotgun sequencing involves randomly slicing the genome into small, sequencing-ready pieces (1 to 2 kbp in length). After being ligated into an appropriate vector, the fragments are partially sequenced. Each fragment can yield 400–500 bp of sequence in a single sequencing run.

Hence, small fragments are sequenced and organized with computer.

To know more about Genome.

https://brainly.com/question/29482089

#SPJ4

Air pollution has decreased in all regions is the likely cause of the change in frequency of melanic moths in michigan (mustard-colored diamonds), in pennsylvania (blue squares), and at caldy common in england (red dots)

The peppered moth's evolution is an example of how air pollution during the Industrial Revolution caused directional colour changes in the moth population.

At that time, a manifestation of industrial melanism was the rise in the number of dark-colored moths. Later, as pollution levels dropped, the light-colored form once more took control. Charles Darwin's theory of natural selection underwent its first test with the industrial melanism in the peppered moth, which is still used as a standard illustration for explaining evolution.

To learn more about moths refer here:

https://brainly.com/question/17504127

#SPJ4

Answer:

You cant make the organells that detailled or make them at all for that matter?

Explanation:

The net benefit of glycolysis is only two ATP because the two ATP molecules are consumed in  initial part of glycolysis, even if the four ATP molecules are created in  second half.

One glucose molecule initiates glycolysis, which culminates with two pyruvate (pyruvic acid) molecules, four ATP molecules overall, and two NADH molecules. The cell has the net gain of two ATP molecules and two NADH molecules for usage since the two ATP molecules were required in the first half of the route to prepare  six-carbon ring for cleavage. Only two ATP molecules will be produced from a molecule of glucose if the organism is unable to further catabolize  pyruvate molecules (through the Krebs cycle or citric acid cycle). Pyruvate kinase, the enzyme that catalyzes the production of pyruvate, must be present in sufficient amounts for the final stage of glycolysis to take place.

The entire glycolysis pathway will in this case ,the full glycolysis pathway will continue to function, but the second half will only produce two ATP molecules (instead of the usual four ATP molecules). As a result, the rate-limiting enzyme for glycolysis is pyruvate kinase.

To know more about glycolysis, please refer:

https://brainly.com/question/737320

#SPJ4

The chance that the child will have the following genotype is as follows:

Codominance is a condition in which both alleles of a gene pair in a heterozygote are fully expressed, with neither one being dominant or recessive to the other.

As stated in this question, human blood group is an example of codominance because alleles iA and iB express themselves simultaneously when in a heterozygous form.

According to this question, if a man who is type AB (allele - iAiB) marries a woman who is type O (allele ii), the following applies:

If these gametes combine, the likely genotypes of the offsprings will be as follows:

This suggests that only AA and BB genotypes will be produced in the offsprings since alleles iA and iB are dominant over allele i.

Learn more about codominance at: https://brainly.com/question/14053639

#SPJ1

The cytoskeleton is not a component of centrioles. Microtubules make up centrioles in cells.

Microfilaments, intermediate filaments, and microtubules make up the intracellular network known as the cytoskeleton. Microtubules, actin filaments, and intermediate filaments comprise a cell's cytoskeleton. The cell's form and internal organisation are provided by these structures. Additionally, they serve as a foundation for cell division and mobility. Other cell components are organised by the cytoskeleton, which also keeps the cell's form and regulates the movement of the many organelles inside the cell as well as the movement of the cell itself.

Learn more about cytoskeleton

https://brainly.com/question/15200286

#SPJ4

Answer:

MSUD stands for Maple Syrup Urine Disease. It is very rare, it occurs in about 1 of every 185,000 births worldwide. A child is born with MSUD when both parents are carriers of three specific gene mutations (changes) – one copy from each parent. These three specific amino acids are leucine, isoleucine and valine. Without the needed enzymes, the three amino acids build up and so do their toxic byproducts that are known as ketoacids.

MSUD occurs more often in communities that have little genetic variation (such as the Mennonite and Amish community) These groups have a closure of people (like they marry with their closed relatives) who are carriers of the mutated gene.

The statement most accurately describes the overall effects of the global food system in contrast to supplying food through local food chains is Responses fewer jobs but pay is a greater percentage of retail price fewer jobs.

A loss leader is a pricing strategy in which a product is offered at a discount from its market value to encourage the purchase of additional, more lucrative products or services.

A loss leader is a product that is purposefully sold for less than its market value as part of your price strategy. Loss leader pricing is a strategy used to boost sales of more lucrative goods and services.

Therefore, The statement most accurately describes the overall effects of the global food system in contrast to supplying food through local food chains is Responses fewer jobs but pay is a greater percentage of retail price fewer jobs.

To learn more about loss leaders, refer

brainly.com/question/13644202

#SPJ1

This statistics says that diffusion employs a certain kind of molecular transport.

Molecules used to create inorganic chemicals known as molecular substances. Common substances as co2 and water (H2O) are examples (CO2). These compounds are very different from ionic compounds like sodium chloride (NaCl).

Molecules are made up of one or even more increased compared. If they contain and over one, they may contain different atoms or the same atoms (for instance, an oxygen molecule has two oxygen atoms) (a water molecule has two hydrogen atoms and one oxygen atom). The amount of atoms in biological compounds like proteins and DNA can reach thousands.

To know more about molecular visit:

brainly.com/question/5198182

#SPJ1

To improve the status of global fish stocks we should :1. Promote the management of sustainable fisheries.

There is room for improvement in the FAO's biennial State of World Fisheries and Aquaculture (SOFIA) report, which provides an overview of the world's fisheries. The FAO should adopt a preventative stance and create norms.

2. Completely carry out the global plan of action for sharks Nearly ten years ago, COFI established the International Plan of Action for the Conservation and Management of Sharks, but its implementation has been patchy and frequently insufficient.

3. Boost data quality and detect reconstruction Reliable catch data are crucial for managing fisheries effectively and can aid nations in identifying catch trends and changes to significant fisheries.

4. Reduce illegal fishing by documenting catchesCatch documentation schemes (CDS) are important in reducing IUU fishing, also known as illicit, unreported, and unregulated fishing. When completely deployed, these programs aid in ensuring that the catch is lawful and tracable.

To know more about fish stocks visit https://brainly.com/question/17444088

#SPJ4

The viral particle entities do not possess the ability to synthesize their own proteins.

A virus doesn't have the propensity to create its own proteins. Although viruses cannot carry out life-sustaining processes or reproduce, they are the classic parasites of the living kingdoms. Viruses are neither animals, plants, or bacteria. Since they lack ribosomes and are therefore unable to make proteins, they must rely on the ribosomes of their host cells to convert viral messenger RNA into viral proteins.

Through the processes of transcription and translation, proteins are created in cells. In essence, the transcription process includes converting the DNA template into mRNA. Following transcription, in which the amino acids are joined in a predetermined sequence with the aid of the genetic code, comes translation.

Hence, viral particle lacks protein synthesizing machinery.

To know more about Translation.

https://brainly.com/question/12463306

#SPJ4

Answer:

Oxidation of glucose is incomplete

Explanation:

During anaerobic respiration the oxidation of glucose is incomplete. The reaction therefore releases much less energy – around a nineteenth of the energy released during aerobic respiration. Only two ATP molecules ofchemical energy are produced in comparison with 38 molecules in aerobic respiration.

BB x bb  are the genotypes of the parents in the first cross (the cross that produced 12 black offspring).

Alleles are distinct variants of a gene. Every gene in somatic cells has two alleles, one from each of the organism's parents. It is frequently impossible to tell from an organism's outer appearance which two alleles of a gene are present within its chromosomes. An organism's hidden or under expressed allele, however, can still be passed on to its progeny and express itself in a subsequent generation.

The first person to explain how qualities are handed down from one generation to the next was Gregor Mendel (and sometimes skip generations). Mendel developed three laws of inheritance that characterized the transfer of genetic features before genes were even known through his breeding experiments with pea plants. Mendel's discoveries significantly increased scientists' understanding of genetic inheritance and helped to create new experimental techniques.

To know more about Genotypes visit:

https://brainly.com/question/29156144

#SPJ4

Option D. is correct, The shotgun method's major flaw is its propensity to overestimate the size of the genome.

The DNA sequence of an organism's genome can be ascertained in a lab setting using a process called shotgun sequencing. The process entails randomly dividing the genome into tiny DNA fragments that are then individually sequenced. First proposed in 1979, whole genome shotgun sequencing for small (4000 to 7000 base-pair) genomes. The genome of the cauliflower mosaic virus was the first one to be shotgun sequenced and was made public in 1981. Hierarchical shotgun sequencing, which requires the first generation of a low-resolution map of the genome, is slower than whole-genome shotgun sequencing but uses fewer computer methods.

To learn more about genome please click on below link

https://brainly.com/question/29482089

#SPJ4

the ability for a person to taste ptc is a dominant genetic trait (t)

heterozygous means 1 of each allele. Thus, genotype must be Tt

In terms of genetics, being heterozygous means that each biological parent contributed a distinct form (allele) of a genomic marker to the individual. As a result, a person who has two copies of a genetic marker is said to be heterozygous. On the other hand, a person who is homozygous for a marker has identical copies of that marker. Heterozygous. For each gene trait in each pair of chromosomes in diploid animals, there are two alleles, one from the mother and one from the father. An allele is one of two or more variant forms of a gene that can exist. These alleles can all be present at the same locus on a chromosome. Diverse alleles for a particular trait are referred to as heterozygous. You have a heterozygous genotype for that gene if the two copies differ. Which qualities are expressed depends on the interaction between the two alleles.

Learn more about heterozygous  here:

https://brainly.com/question/3712307

#SPJ4

Atrioventricular valve cusps are prevented from everting (swinging upward into the atria) by contracting papillary muscles.

The chordae tendineae are pulled when the papillary muscles contract, which prevents the atrioventricular valves' cusps from opening and allowing blood to return to the atria. Thin, fibrous tissue strands known as chordae tendineae join the two atrioventricular valves—the mitral valve and the tricuspid valve—to the ventricles. The cusps or flaps of each valve are held in place by the chordae tendineae and papillary muscle. Pressure gradients across the valves cause the mitral and tricuspid valve cusps to close as the ventricles contract. Blood may leak backward or vomit if the chordae tendineae are not sufficiently taut, so the cusps can shut properly. The mitral valve cusps, in this instance, are prolapsing or failing to seal completely. From the ventricle, blood is dripping back into the left atrium.

Hence, papillary muscle with chordae tendineae holds cusp of valve.

To know more about Ventricles.

https://brainly.com/question/29564818

#SPJ4

Threonine amino acid corresponds to the codon ACC.

Proteins are composed of amino acids, which are also utilized to create polypeptides. Codons, a set of three nucleotides, are used to code for amino acids. The amino acid threonine is encoded by the codon ACC. Numerous codons specify the majority of the amino acids. This is not shocking at all. For instance, four codons indicate glycine, valine, proline, threonine, and alanine, whereas six codons specify leucine, serine, and arginine.

learn more about amino acids here:

https://brainly.com/question/2526971

#SPJ4

Answer:

Rr, round wings

Explanation:

The wings will all be Rr, which makes them all round. If round wings are the dominant trait, then they can be represented as either RR or Rr. But if pointy wings are recessive, they can only be represented as rr. Genotype is the genetic makeup of an organism, and can be represented as Rr (dominant), RR (dominant), and rr (recessive). The Phenotype is the visible traits, such as hair color, eye color, or in this case, wing type. recessive traits can only appear when there are two little r's: rr. So they genotype can be represented as Rr, and the phenotype can be represented as round wings.

I hope this helps and have a great day!

Tetraterpene pigments called carotenoids come in shades of yellow, orange, red, and purple. The most pervasive colors in nature are carotenoids, which are found in photosynthetic bacteria, some types of fungi and archaea, algae, plants, and animals. (true)

Plants, algae, and photosynthetic bacteria all contain pigments called carotenoids. Bright yellow, red, and orange hues are created by these pigments in plants.

Xanthophylls and carotenes are the two main categories for carotenoids. Antioxidant qualities are present in both varieties of carotenoids. Additionally, some carotenoids may be transformed into vitamin A, which is crucial for the development and health of humans.

learn more about pigment  here:

brainly.com/question/1056549

#SPJ1

acetylcholinesterase degrades ach in the synapse. if a neurophysiologist applies onchidal (

constant muscle stimulation paralysis of muscle tissue decrease in the frequency of action potentials no effect

convulsions due to constant muscle stimulation

The main cholinesterase in the body is acetylcholinesterase, commonly known as AChE, AChase, or acetylhydrolase (HGNC symbol ACHE; EC 3.1.1.7; scientific name acetylcholine acetylhydrolase). It is an enzyme that speeds up the decomposition of the neurotransmitters acetylcholine and a few other choline esters:

Acetylcholine with water produce acetate and choline.

It is mostly located at neuromuscular junctions and in cholinergic chemical synapses, where its activity stops synaptic transmission. It is a member of the enzyme family known as carboxylesterase. It is the main enzyme that organophosphorus substances like pesticides and nerve poisons block.

Learn more about acetylcholinesterase here:

https://brainly.com/question/9240016

#SPJ4

Answer:

Neonicotinoids are a class of insecticides that work by disrupting the transmission of nerve impulses in insects. The compounds are readily absorbed by plants and are present in pollen and nectar, making them highly toxic to bees and other pollinators.

When neonicotinoids come into contact with insects, they bind to certain receptors in the insects' nervous system, specifically the nicotinic acetylcholine receptors. These receptors are found at the junctions between nerve cells, known as synapses, where they play a key role in transmitting nerve impulses from one cell to the next.

The binding of neonicotinoids to the nicotinic acetylcholine receptors interferes with the normal transmission of nerve impulses at the synapses, leading to paralysis and ultimately death in the affected insects. This mode of action is specific to insects, which is why neonicotinoids are effective at controlling insect pests but are relatively non-toxic to mammals.

Answer:

1.)It will result in increase in mortality(Death rate)

2.) Malnutrition

3.) Susceptible to diseases.

4.) decrease in revenue due to sick workers which have become prone to disease as a result of the effective blood vessels which are unable to perform their task(which is usually due to poor food and water supply)

Explanation:

With less food, whether incremental through smaller portion sizes or more drastic through skipped meals, people often earn less money and are more susceptible to health issues . The consequences for small children can be especially serious, leading to malnutrition and stunting.

Option C. is correct, Gene expression levels have long been known to be significantly influenced by the state of chromatin, the packaging of DNA in eukaryotes. Several chromatin-altering techniques, such as ATP-dependent remodelling.

The cell uses histone modification to control the transcription of certain genes. Since several histone acetyltransferases have been discovered and further studied in recent years, histone acetylation is one of them that is most thoroughly understood. chromatin remodelling and histone acetylation A restrictive barrier to transcription is represented by chromatin. This molecular barrier is a highly dynamic structure that can fit the complete genome's DNA inside the limits of a nucleus while yet allowing access to the genetic material stored inside.

Which of the following will increase the rate of transcription?

a. Activation of a transcriptional repressor

b. Inhibition of a transcriptional activator

c. Histone acetylation leading to chromatin decompaction

d. Histone methylation leading to chromatin compaction Removal of RNA polymerase

To learn more about chromatin-altering please click on below link

https://brainly.com/question/28020630

#SPJ4

The rabbit population increased during years when the death rate was lower than the birth rate, reflecting a higher carrying capacity.

The carrying capacity of an environment is described as the maximum population size of a biological species that can be sustained by that specific environment, given the food, habitat, water, and other resources available.

Population is known to refer to the number of people in a single area, whether it be a city or town, region, country, continent, or the world.

The primary and I think the most obvious cause of population growth is an imbalance between births and deaths.

In the diagram shown, we can see an increase or growth in population when the death rate increases depicting an imbalance between death and births.

Learn more about carrying capacity at: https://brainly.com/question/14645317

#SPJ1