what's the difference between dominant and recessive alleles

a) Reaction to acid, c) Hardness - it can't be scratched by a fingernail and it can't scratch glass, d) Fracture.

Calcite is a common mineral that has a number of diagnostic properties that can be used to identify it. These properties include:

Reaction to acid: Calcite reacts with acid to produce carbon dioxide gas and water.

Hardness: Calcite is very hard and can't be scratched by a fingernail or glass.

Fracture: Calcite often exhibits conchoidal fracture, which is a smooth, curved fracture that resembles the shape of a shell.

Color: Calcite is often white or clear, but it can also be colored by impurities.

Calcite does not have cleavage in three planes at 90 degrees, so option e) is incorrect.

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Answer:

relative location is the position of something relative to another landmark. For example, you might say you're 50 miles west of Houston.

Speed of the spore after launch (v) = 1.60 m/s Distance traveled during the launch (d) = 5.10 µmDistance traveled after launch to reduce the speed to zero (d') = 1.20 mmThe acceleration of the spore can be calculated by the following equations, as the acceleration is constant during the launch and speed reduction of the spore:

(a) During LaunchLet, a be the acceleration of the spore during the launch of the spore.Using the kinematic equation,v² - u² = 2as,where, u = 0 (initial velocity), v = 1.60 m/s (final velocity), s = 5.10 µm (distance traveled)So,1.60² = 2 × a × 5.10 × 10^-6a = (1.60²) / [2 × 5.10 × 10^-6]a = 125490.20 m/s²This acceleration can be converted to g units (acceleration due to gravity), using the conversion factor 1 g = 9.81 m/s².So, the acceleration in g is,a / g = (125490.20 / 9.81) g = 12795.29 gTherefore, the acceleration during the launch of the spore is 12795.29 g.

(b) During Speed ReductionLet, a' be the acceleration of the spore during the speed reduction of the spore.Using the kinematic equation,v² - u² = 2as,where, u = 1.60 m/s (initial velocity), v = 0 (final velocity), s = 1.20 mm (distance traveled)So,0 - (1.60)² = 2 × a' × (1.20 × 10^-3)a' = - (1.60)² / [2 × (1.20 × 10^-3)]a' = - 1066.67 m/s²This acceleration can be converted to g units (acceleration due to gravity), using the conversion factor 1 g = 9.81 m/s².So, the acceleration in g is,a' / g = (- 1066.67 / 9.81) g = - 108.71 gTherefore, the acceleration during the speed reduction of the spore is - 108.71 g (negative value means acceleration is directed opposite to the motion of the spore).

Spore are one or several cells covered by a protective layer. These cells are dormant and grow only in an environment that meets certain requirements, which are specific to each species. The function of spores as a means of dispersal is similar to that of seeds, although they are different in terms of anatomy and evolution. What constitutes a spore? Types of spores based on function are divided into four, namely diasporas, endospores, chlamydospores and zygospores. In the type of diaspora, spores are a tool for non-seed plants, mosses, fungi and myxozoa to spread.

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Potential fathers with blood types B and AB would be exonerated in the case of mother A and child AB.

In blood typing, the ABO system consists of four blood groups: A, B, AB, and O. Each blood group is determined by the presence or absence of specific antigens on the surface of red blood cells.

To determine potential paternity, we need to consider the blood types of the mother, child, and potential fathers. In the given scenarios:

A. Mother: A, Child: AB

In this case, the mother has blood type A, and the child has blood type AB. The child inherited the A antigen from the mother and the B antigen from the father. Therefore, potential fathers with blood types B and AB could be the biological father, while those with blood types A and O would be exonerated.

B. Mother: O, Child: B

The mother has blood type O, and the child has blood type B. The child inherited the B antigen from the father. Therefore, potential fathers with blood types A and AB would be exonerated, while those with blood types B and O could be the biological father.

C. Mother: O, Child: O

Both the mother and child have blood type O. In this case, potential fathers with any blood type could be the biological father, as blood type O is compatible with all blood types.

D. Mother: AB, Child: A

The mother has blood type AB, and the child has blood type A. The child inherited the A antigen from the mother. Therefore, potential fathers with blood type B would be exonerated, while those with blood types A, AB, and O could be the biological father.

E. Mother: B, Child: A

The mother has blood type B, and the child has blood type A. The child inherited the A antigen from the father. Therefore, potential fathers with blood type B would be exonerated, while those with blood types A, AB, and O could be the biological father.

In summary, the blood types of potential fathers that would be exonerated depend on the blood types of the mother and child. The exonerated fathers would be those who do not possess the antigen that the child inherited from the mother.

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The surgical removal of renal cell carcinoma usually entails a nephrectomy, which is the surgical removal of the kidney containing the cancerous tumour.

A partial nephrectomy, which involves removing only the tumour and a portion of the kidney tissue surrounding it, may be possible depending on the size and location of the tumour.

An incision in the abdomen or flank is made to gain access to the kidney during a nephrectomy.

To isolate the kidney from the surrounding structures, the surgeon carefully dissects the tissues and blood vessels surrounding it.

To prevent urine from leaking during the procedure, the ureter, which is the tube that transports urine from the kidney to the bladder, is identified and clamped.

Thus, the answer is nephrectomy.

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The body stores excess energy from food as fat.

What causes the body to store surplus energy?

If you consume too many calories, your body stores the extra energy as fat or glycogen to utilize later. These substances are stored in your muscles, liver, and fat cells. Your body's fat reserves grow over time when you consistently consume too many calories, which leads to weight gain.

It turns out that storing energy in fat is far more effective. Protein and carbohydrates comprise only 4 calories per gram, compared to roughly 9 for fat. This distinction is considerably more pronounced in live tissue. Very little water is present in tissue-stored fat.

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Answer:

if the letter is capital that represents it as a dominant trate #10=A

heterozygous is having two different allele of two particular gene(s)#11=B

a phenotype is a trates or characteristics of a species that is observable of its genotype with the environment. #12=A

the brown eyes B is the most dominant so it showes while b blue eyes is the rececive trate#13=A

Explanation:

If the knockout technique does not work correctly and some supposed knockouts do not eliminate the expression of the target gene in bacterium, it is most likely that some non-essential genes are deemed essential.

This is because the knockout technique involves the disruption of a specific gene, which should result in the loss of the function of that gene. However, if the knockout technique is not effective, some of the genes that were supposed to be knocked out may still be functional, leading to the wrong conclusion that they are essential.
This can have significant implications for research in the field of microbiology. Misidentification of essential and non-essential genes can lead to incorrect assumptions about the function of genes, as well as their importance in bacterial growth and survival. In turn, this can affect the development of antibiotics and other treatments that target specific genes.
Therefore, it is crucial for researchers to ensure that their knockout techniques are working correctly before drawing any conclusions about the essentiality of genes. This may involve using different techniques or verifying results through additional experiments. By doing so, researchers can ensure the accuracy of their findings and avoid misidentifying essential and non-essential genes.

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The hospital must have made a mistake as the child can not have a blonde hair.

We know that when we talk about the genotypes we mean the sum total of the genes that the individual can be able to get from its parents. Let it be noted that the father can said to have the genotype  Rr while the mother has the gene RR. The phenotype is the expressed trait that we see.

The R here is the gene for the brown hair. In each of the cases, we cam see that the crossing of the genes must always give rise to a child that has a brown hair thus the hospital must have made a mistake.

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Answer: temperatures are about 10 to 20 °C (50 to 68 °F) in the dry season and 20 to 30 °C (68 to 86 °F) in the wet season.

Explanation:

Answer:

Climateon

Explanation:

The climateon the mainland of Europe is more diverse than that of the British Isles and supports a wider range of plant life.

Answer:

1) Mutations: Bacterial mutations can occur spontaneously and alter the DNA of the bacterium, leading to changes in its characteristics and potentially leading to the development of a new strain.

2) Horizontal gene transfer: Bacteria can exchange genetic material with other bacteria through mechanisms such as conjugation, transduction, or transformation. This can result in the transfer of virulence factors, antibiotic resistance genes, or other traits that contribute to the development of new strains.

3) Antibiotic resistance: The overuse and misuse of antibiotics can lead to the selection and spread of antibiotic-resistant strains of bacteria. This can result in the emergence of new strains that are resistant to multiple antibiotics and pose a significant public health threat.

Answer:

The answer above is only one of the answers. The answers are A, C, and E! I did the USATestPrep and those were the answers. Mark as brainliest plz!

Explanation:

Answer:

Two functions of the cell membrane are:  e. enabling the cell to communicate and attach to other cells.

The cell membrane can be described as a semi-permeable membrane that allows the selective entry of materials into and out of a cell. Other than this, there are various other functions that a cell membrane plays an active role in.

A cell membrane allows a cell to attach to an extracellular matrix or to other cells so that two cells can communicate with each other. Also, the ability of the cell membrane to join with other cells causes tissue formation. Through membrane signaling, which is a feature of the cell membrane, two cells can connect biophysically. Hence, the correct option is e. enabling the cell to communicate and attach to other cells.

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Answer:

Pig

Explanation:

Pig valves are already used successfully in heart transplants. Human-to-human organ transplantation has only been around since the 1950s, and scientists have been working on animal-to-human transplants for almost that long. In the '60s, Keith Reemtsma experimented with transplanting chimpanzee kidneys into humans.

Answer:

Pig

Explanation:

This process is called Xenotransplantation. The animal organ, probably from a pig or baboon could be genetically altered with human genes to trick a patient's immune system into accepting it as a part of its own body. (Wikipedia)

The Hardy-Weinberg equilibrium has helped modified biologists' interpretation of Darwin's original contributions in that it helped scientists to understand evolutionary changes in terms of mutation.

Genetic engineering has helped modified biologists' interpretation of Darwin's original contributions by equipping scientists with tools to bring about changes in the genes of organisms faster than natural selection would.

The Hardy-Weinberg equilibrium states that the frequencies of alleles and genotypes will remain constant from generation to generation in a large, randomly mated population that is not subject to mutation, migration, natural selection, or genetic drift.

In a population where these conditions are met, evolutionary changes are not observed.

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Complete question:

Darwin is considered the "father of evolutionary biology." Four of his contributions to the field of evolutionary biology are listed below.

The non-constancy of species

Branching evolution, which implies the common descent of all species.

Occurrence of gradual changes in species Natural selection as the mechanism for evolution

Darwin's ideas have been enhanced and modified as new knowledge and technologies have become available. Discuss how TWO of the following have modified biologists' interpretation of Darwin's original contributions.​

o Hardy-Weinberg equilibrium

o Punctuated equilibrium

o Genetic engineering

The range of the function g(x) = |x – 12| – 2 is {y | y > –2}.


To find the range of a function, we need to determine all possible output values (y) that the function can produce for different input values (x). In this case, g(x) is defined as the absolute value of the difference between x and 12, minus 2.
Since the absolute value of any real number is always non-negative, |x – 12| can never be less than 0. Therefore, the minimum value of g(x) occurs when |x – 12| = 0, which happens when x = 12. At x = 12, g(x) = -2, which is the lower bound of the range.

On the other hand, as x moves away from 12 in either direction, |x – 12| increases, causing g(x) to increase as well. As a result, the range of g(x) consists of all values greater than -2, but there is no upper bound. Therefore, the range of the function g(x) is {y | y > –2}.

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The results of the studies conducted at the hawthorne plant surprise elton mayo and his fellow researchers because : They marked the beginning of a concern for human relations in the workplace.

Beginning in 1924, the study at the hawthorne plant isolated two groups of employees in order to test the effects of different incentives on their output. Productivity increased as illumination levels were raised, but it also increased when lighting levels were reduced to standard or even below-standard in both groups.

It was initially anticipated that economic considerations would have the biggest impact on productivity. The results were unexpected: productivity rose, but not for economic reasons. Ultimately, researchers came to the conclusion that better worker attentiveness led to better job performance.

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Answer:

the variable that is being measured or tested in an experiment

Explanation:

just fax

Answer:A nucleoside has two parts: a pentagonal sugar (deoxyribose) and a nitrogenous base (in color). When a nucleoside is joined to a phosphate, it is called a nucleotide . Note: The names of these nitrogenous bases are adenine (red), cytosine (yellow), guanine (blue), and thymine (green).

Explanation:

Answer:

Just to add the pairs go like

Explanation:

Adenine always pairs with Thymine and Cytosine pairs with guanine

The energy present in the ecosystem is being conveyed from producers to each level of the ecosystem. Photosynthesis is the process involve in the conversion of the energy from the sun to chemical energy. The number of trophic levels in an ecosystem is confines to 4-5 only. Only 10 % of energy is being conveyed from one level to the next. If this will be the case, each level will have a decrease of energy. If a sixth level will be present, there will be not enough energy to provide the species on such level.

Answer is Option 1 - Not enough energy is available to be transferred from the fifth trophic level to the sixth trophic level to support organisms.

Answer:

1. Energy cannot be CREATED or DESTROYED

2. Energy can be CONVERTED into different types of energy (mechanical, chemical, etc.)

Producers make their own food or own energy

A food chain shows energy transfer between organisms

Amount of energy DECREASES as you move up the pyramid

Only 10% of the energy is passed

Explanation:

i'm in bio and this i was just learning

Answer:

Cell theory meets the definition of a scientific theory  because it can be proven, it has been tested for a long period of time and therefore there are many evidences that support the theory but not enough to become a law. Well scientific laws are statements based on repeated experiments or observation, but also, a law is something that always applies under the same conditions. Evolution occurs in the characteristics of living things within a species overtime. . A theory is much more complex: it explains why something happens. A law only describes what happens.

The cell theory meets the definition of a scientific theory but i do not think it should be a scientific law.

Explanation:

Answer:

Concept of Conservation: Matter cannot be created or destroyed. Matter can only change forms!

Explanation:

conservation of matter - a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system

Answer:

Mutation can disrupt the cell cycle.

Answer:

it's the first one

Explanation:

character counttttt

Answer:

A. Burning fossil fuels releases carbon dioxide into the atmosphere.

Explanation:

Please mark me. But if you like anyone else's answer better you can mark them instead.

Because this region is immune to human meddling, the earth's mantle won't change in the future.

We can determine the Earth's topography thanks to the heat and material transport taking place in the mantle. Plate tectonics is shifted by mantle activity, which also causes earthquakes, volcanoes, seafloor spreading, and the formation of mountains.

Therefore, since this area is protected from human interference, we can draw the conclusion that the earth's mantle won't alter in the future.

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