Hitchhiker’s thumb (H) is dominant to no hitchhiker’s thumb (h). A woman
who does not have hitchhiker’s thumb marries a man who is heterozygous for
hitchhiker’s thumb. What is the probable genotypic ratio of their
children?
Group of answer choices

50% Hh : 50% hh

100% HH : 0% hh

75% Hh : 25% hh

0% Hh : 100% hh

Answer:

d i thank?

Explanation:

Answer:

D. Phosphodiester​

Explanation:

Just as the DNA polymerase serves as a catalyst in the replication of the DNA, so does the RNA polymerase speed up the formation of the RNA. RNA polymerase performs its function of linking nucleotides when the phosphodiester bonds are formed in the 5' to 3' sequence. Nucleoside triphosphate precursors such as the Adenosine triphosphate, Cytosine triphosphate, and Guanosine triphosphate serve as the substrates that allow the formation of the RNA molecule.

When the RNA polymerase unwinds the double helix structure of the DNA found before the active site where the polymerization will occur, substrates can then pair themselves in a complementary form.

To determine whether the contact between sandstone that overlies basalt is a non-conformity or the result of intrusive contact metamorphism, you would examine the characteristics of the contact zone and the relationship between the two rock layers.

In the case of a non-conformity, the sandstone would be deposited on top of the eroded surface of the basalt, indicating a significant time gap between the formation of the basalt and the deposition of the sandstone.

The contact zone would show signs of erosion, such as angular unconformity or evidence of weathering.

On the other hand, if the contact is the result of intrusive contact metamorphism, there would be signs of thermal alteration and contact metamorphic effects in the sandstone near the contact zone.

The sandstone would show changes in texture, mineralogy, and color due to the heat and chemical alteration caused by the intrusion of the hot basalt magma.

To make a conclusive determination, you would need to carefully examine the contact zone, observe the characteristics of both rock layers, analyze the mineralogical and textural changes, and consider the geological context of the area.

This may involve conducting field observations, collecting rock samples, and conducting laboratory analyses to identify the presence of metamorphic minerals or other evidence of intrusive contact metamorphism.

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Answer:

Neurotransmitters; neuromodulators; facilitation; an increased; an increased; inhibition; a decreased; a decreased.

Explanation:

In Biology, stimulus can be defined as an obvious change in either the chemical or physical structure of an organism' environment (either external or internal). Thus, all living organisms (both animals and plants) respond to changes in their environment and consequently, an appropriate response or reaction is made. Also, stimulus arising from within the organism is known as internal stimulus while those from its environment are known as the external stimulus.

In organisms, the specialized cells that detect stimulus are generally known as sensory receptors while a group of these receptors is referred to as sense organ.

Neuromodulation is the release of chemicals (other than neurotransmitters ) from cells that locally regulate or alter the response of neurons to neurotransmitters. The substances released are called neuromodulators. Neuromodulation generally results in either facilitation or inhibition. When there is greater response from a postsynaptic neuron because of the release of neuromodulators it is facilitation. This may result from either an increased amount of neurotransmitter in the synaptic cleft or an increased number of receptors on postsynaptic neurons. When there is less response from a postsynaptic neuron because of the release of neuromodulators, it is called inhibition. This results from either a decreased amount of neurotransmitter in the synaptic cleft or a decreased number of receptors on postsynaptic neurons.

Answer:

He should start out doing little amount , any workout his wants but try to hold the weight for 1 min , making sure that he doesn't lift too fast instead he should do them slow and hold it for a while for he can feel the burn in his muscle and with time add the reps and hold it longer

Explanation:

The labelling of population growth regulation as; Tornado wiping out a population of scrub pine trees are Density Independent, Adelie penguin mating pair cannot lay eggs due to occupied nesting sites are Density Dependent, and Pack of hyenas chasing and taking down gazelles from a larger herd are Density Dependent.

Tornado wiping out a population of scrub pine trees: DI (Density Independent)

Tornadoes are natural disasters that can cause widespread destruction and affect populations regardless of their size or density. The impact of a tornado on the scrub pine tree population is not directly influenced by the density of the population. Therefore, this scenario is an example of density-independent regulation.

Adelie penguin mating pair cannot lay eggs due to occupied nesting sites: DD (Density Dependent)

In this scenario, the availability of nesting sites directly affects the ability of the Adelie penguin mating pair to lay eggs. As the nesting sites become occupied by other mating pairs, the density of the population increases, leading to competition for limited resources. The regulation of mating pair reproduction based on the density of the population is an example of density-dependent regulation.

Pack of hyenas chasing and taking down gazelles from a larger herd: DD (Density Dependent)

The behavior of the pack of hyenas in chasing and taking down gazelles is directly influenced by the density of the gazelle population. As the herd size increases, there are more potential prey available, leading to increased hunting success for the hyenas. Therefore, this scenario exemplifies density-dependent regulation, as the predator-prey interaction is influenced by the density of the gazelle population.

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Hemosiderin found in macrophages and PMNs in lung tissue indicates (Option c.) Pulmonary congestion.

Hemosiderin is a pigment that results from the breakdown of hemoglobin, the iron-containing molecule found in red blood cells. It is typically stored within macrophages and neutrophils (PMNs) in tissues.

In the context of lung tissue, the presence of hemosiderin in macrophages and PMNs suggests pulmonary congestion. Pulmonary congestion refers to the accumulation of fluid, often blood or blood-derived components, within the lungs. It can occur due to various conditions such as heart failure, inflammation, or lung damage.

The presence of hemosiderin indicates that red blood cells have leaked into the lung tissue, possibly due to increased blood vessel permeability or congestion. Macrophages and PMNs phagocytose the leaked red blood cells and store the iron pigment, hemosiderin, as a result.

Therefore, the presence of hemosiderin in macrophages and PMNs in lung tissue is an indication of pulmonary congestion.

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The correct option is A. Half of the boys and none of the girls will have hemophilia . This scenario, we have a woman with normal blood clotting (presumably carrying two normal X chromosomes) and a man with hemophilia .

Hemophilia is a rare genetic disorder characterized by impaired blood clotting. It is caused by a deficiency or malfunction of specific clotting factors in the blood, namely Factor VIII (hemophilia A) or Factor IX (hemophilia B). These factors are crucial for normal clot formation and prevention of excessive bleeding. People with hemophilia experience prolonged bleeding even from minor injuries, and spontaneous internal bleeding can also occur.

Symptoms include easy bruising, joint pain, and prolonged bleeding after dental procedures or surgeries. Hemophilia is usually inherited, with symptoms more commonly observed in males. Treatment involves replacing the deficient clotting factors through infusions, managing bleeding episodes with medications, and adopting measures to prevent injuries.

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The head develops before other parts of the body in the embryonic stage. The correct option is a.

During embryonic development, the head is one of the first structures to form before other parts of the body. This early development of the head is a fundamental aspect of vertebrate embryogenesis. The process starts with the formation of the neural tube, which gives rise to the central nervous system, including the brain.

The development of the neural tube occurs early in embryogenesis and serves as a foundation for the subsequent development of other organ systems.

As the neural tube develops, it gives rise to the structures of the head, including the brain, face, and sensory organs. This initial development of the head provides the framework for the formation of other structures and systems in the body, such as the spinal cord, limbs, and internal organs.

While other parts of the body, such as the foot, spine, and stomach, will eventually develop during subsequent stages of embryonic development, the head takes priority in terms of early formation. The correct option is a.

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Answer:

The last one

Explanation:

Flashlight is a portable, battery-operated device that makes light.

A flashlight is a portable, battery operated device that makes light is the best short summary for a flashlight.

A flashlight or torch is a portable hand-held electric lamp. Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes since the mid-2000s.

The three main features for a flashlight are Dimensions, Battery, and Light. Each of these characteristics are very important when it comes to selecting a flashlight.

Flashlights are used as a light source outdoors, in places without permanently installed lighting, during power outages, or when a portable light source is needed.

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The concentration of PAHs in the suspended particles in units of ng m-3:

concentration = mass/volume = 4.9 × 10-9 g/1440 m3 = 3.4 × 10-12 g m-3 = 3.4 ng m-3

If the concentration of polycyclic aromatic hydrocarbons (PAHs) recorded in the particle extraction is 0.5 ppb, and the concentration of PAHs in the ‘blank’ filter paper is 0.01 ppb, we can calculate the concentration of PAHs in the suspended particles in units of ng m-3.

Concentration of PAHs in extraction = 0.5 ppb

Concentration of PAHs in blank filter = 0.01 ppb

Therefore,

net PAHs concentration = 0.5 - 0.01 = 0.49 ppb = 0.49 μg L-1.

The volume of the sample = 10 mL or 0.01 L. Therefore, the mass of PAHs in the sample is:

mass = concentration × volume = 0.49 μg L-1 × 0.01 L = 4.9 ng = 4.9 × 10-9 g

The sample was collected for 24 hours, and the sampling rate is given as 1 m3 per minute. Therefore, the sampling

volume = 1 m3/minute × 60 minutes/hour × 24 hours = 1440 m3

Therefore, the concentration of PAHs in the suspended particles in units of ng m-3:

concentration = mass/volume = 4.9 × 10-9 g/1440 m3 = 3.4 × 10-12 g m-3 = 3.4 ng m-3

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The Earth has three main climate zones: tropical, temperate, and polar.

Answer: warm, hot, cold, chilly

Explanation:

Answer:

Photosynthesis is process by which green plants manufacture their food by making use of carbon dioxide and water in the presence of sunlight

Answer:

Granite is formed when molten magma flows and cools underground.

Explanation:

Granite is an intrusive igneous rock, so it forms underground.

Answer:

Granite is formed when molten magma flows and cools underground.

Explanation:

The igneous rock granite could be pressed below the Earth's surface until it changes into the metamorphic rock gneiss.

The strange star-shaped organelle in the fungus might have arisen through endosymbiosis with a bacterium.

Endosymbiosis is a theory that proposes how eukaryotic cells evolved through the engulfment and integration of certain prokaryotic cells. In this case, the strange star-shaped organelle in the fungus possesses several characteristics that suggest it could have originated through endosymbiosis with a bacterium.

The presence of a small genome in the organelle's interior suggests it retains some genetic material, similar to mitochondria and chloroplasts, which are believed to have originated from endosymbiotic events.

The two membranes surrounding the organelle indicate that it may have been engulfed by the fungal cell, as seen in the engulfment of mitochondria and chloroplasts.

The absence of vesicle formation from the organelle membrane suggests that the organelle might have a different mechanism for protein trafficking and secretion compared to other eukaryotic cells.

The presence of bacterial-like proteins within the organelle's interior supports the idea that it originated from the engulfment of a bacterium.

The presence of ribosomes in the organelle indicates its ability to synthesize proteins, similar to mitochondria and chloroplasts.

Overall, these characteristics align with the theory of endosymbiosis, suggesting that the strange star-shaped organelle in the fungus might have originated through the incorporation and integration of a bacterial cell into the fungal cell.

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Answer:

They all have cholorophyll

Explanation:

Or we can say they carry out photodynthesis and make food.

See, all the pictures are green, this green pigment (colour ) is cholorophyll.

The first, second and fourth are pictures of leaves [which makes food] and the third picture is a illustration of the mitochondria.

Hope it helps!

Answer:

what's common between them is the colour green which is caused by chlorophyll

Explanation:

chlorophyll are green pigments in a leaf which facilitates sun light absorption for the leaf .Even the a structure is shown the picture

The correct option is (a). Hydrophobic substances can easily diffuse through lipid bilayers. A lipid bilayer is a double layer of lipids that forms the core of nearly all cell membranes.

Hydrophobic substances can easily diffuse through lipid bilayers. A lipid bilayer is a double layer of lipids that forms the core of nearly all cell membranes. A lipid bilayer consists of two layers of hydrophobic (water-repelling) phospholipids, which face inward and surround a layer of hydrophilic (water-loving) molecules. The membrane is selectively permeable to allow the exchange of specific materials in and out of the cell. Small, uncharged molecules, such as hydrophobic substances, can easily diffuse through the lipid bilayer. Hydrophobic molecules are repelled by water molecules and attracted to lipid molecules, allowing them to diffuse through the membrane. Some examples of hydrophobic molecules that can easily diffuse through lipid bilayers include carbon dioxide and oxygen.

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Answer:

Both numbers are equally important and you need both. There are two because you need both.

Explanation:

When you go to take your blood pressure the top number is the systolic pressure and it measures the amount of pressure in your arteries during the contraction of your heart muscle. The bottom number is called the dialostic pressure and measures the amount of blood pressure of you heart muscle between beats. Healthy blood pressures numbers are 120 over 80, or 120/80.

Answer:

0

Explanation:

Answer:

What will be the consequence of not having an origin of replication (ori) in the vector? Explanation: In the case ori is absent, the vector won't be able to replicate

Explanation:

As the replication won't take place, only one of the daughter cells would be having the vector. A colony of transformed colonies won't be obtained.

if a vector does not has the origin of replication result in not doing replication as the unit of replication is Ori.

In the case Ori is absent, the vector may not be capable of replicating. As the replication may not take place, the handiest one of the daughter cells might be having the vector. A colony of converted colonies may not be obtained.

Of these, the maximum usually used vectors are plasmids. Common to all engineered vectors have a foundation of replication, a multi cloning site, and a selectable marker. The vector itself is normally a DNA series that includes an insert (transgene) and a bigger series that serves as the "backbone" of the vector.

Thus it is clear that if a vector does not have an origin of replication result in nonreplicating.

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The citric acid cycle is the phase of cellular respiration where carbon dioxide is released. The citric acid cycle, the electron transport chain, and glycolysis make up the three phases of aerobic cellular respiration.

The Krebs cycle, the Link reaction, and glycolysis are the three stages of cellular respiration that oxidize the glucose molecule to carbon dioxide.

The process that takes place in the mitochondria of a living thing is called cellular respiration. Water and carbon dioxide are emitted as waste during this procedure. It is a metabolic process that converts glucose into ATP.

Anaerobic respiration does not require oxygen to occur, unlike aerobic respiration. Anaerobic respiration, which occurs in microorganisms like yeast, a unicellular (or single-cell) fungal, is known as fermentation. This process results in the production of carbon dioxide and an alcohol variant called ethanol.

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Answer:

The stage of cellular respiration in which carbon dioxide release takes place is the citric acid cycle.

The outbreak of cholera in Haiti was first reported in October 2010. It was the first time that this illness was seen in the country since 1960.

The outbreak of cholera in Haiti was first reported in October 2010. It was the first time that this illness was seen in the country since 1960. It was not known to be endemic in Haiti, which meant that it had not occurred there for at least the previous five years. Cholera is a bacterial illness that is transmitted through contaminated water or food. It causes severe diarrhea, vomiting, and dehydration. The illness can be fatal if left untreated. Cholera is known to occur in countries with poor sanitation and hygiene practices. It is also more likely to occur in areas with high population density, such as refugee camps or slums. In Haiti, a combination of factors likely led to the outbreak of cholera. The country was still recovering from a devastating earthquake that occurred in January 2010. Many people were living in crowded tent camps without access to clean water or sanitation facilities. In addition, heavy rains in the weeks before the outbreak likely contaminated the Artibonite River, which is a major water source for many people in the region. This contamination likely led to the spread of cholera throughout the area. Overall, the outbreak of cholera in Haiti was a tragic reminder of the importance of clean water and sanitation in preventing the spread of infectious diseases.

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Answer:

A

Explanation:

Answer:

D.

Explanation:

Answer:

Factors Impacting the Malolactic Fermentation. Several factors impact the initiation and progression of the malolactic fermentation. Temperature, pH, acidity, ethanol, sulfite and availability of nutrients are all important for the growth and metabolic activities of the lactic acid bacteria.

Answer:

1. Temperature

2. pH

3. acidity

4. ethanol

5. sulfite

6. substarte (sugar) concentration

Explanation:

Explanation:

Species but dot take my word on it is was an educated guess

Answer:

Explanation:

Species

kingdom is further split into phylum or division, class, order, family, genus, and species, which is the smallest group.

The science of classifying organisms is called taxonomy and the groups making up the classification hierarchy are called taxa.