Cystic fibrosis is a recessive disorder. Two individuals that are both heterozygous for CF
have children, what percent of their offspring will be affected by the disorder?
Answers
Explanation: draw out a punnet square. Cross Cc x Cc. (C normal allele) (c Cystic Fibrosis allele). If you draw the punnet square, 1/4 will be cc , 1/4 will be CC, and 1/2 will be Cc. In order for the child to have cystic fibrosis, the genotype must be cc.
Related Questions
Please help me... The advantages of soaking pineapple slices in a concentrated sugar solution compared to storing fresh pineapple
Answers
Answer:
Answer:
Advantage: Bromelain. Adding pineapple
to your meals or desserts may help you
digest your food better....
Disadvantage: Sugar. If you have
diabetes, pineapple may cause a spike in
your blood sugar. ...
Advantage: Vitamins and Minerals. ...
Disadvantage: Skin Irritation.
hope this helps:)
It is a test please help
Which organ is not connected to its system?
a) Spinal cord – Nervous system
b) Large intestine – Digestive System
c) Testes – Reproductive system
d) Kidney – Circulatory system
Answers
Answer:
Kidney is not connected to its system
Explanation:
the kidney belongs to the renal system
3. Hail and Lightning are common in floods. True or false
Answers
brainiest?! please?
Answer:
I would have to say false. Because hail is cause by frozen rain, and at that point, it would be a blizzard.
The air masses that originate in low latitude are called
a) polar b) tropical c) continental d) marine
Answers
The air masses that originate in low latitude are called b) tropical.
Air masses are large bodies of air with similar temperature and humidity characteristics. The air masses that originate in low latitudes near the equator are called tropical air masses. These air masses are typically warm and moist due to the high temperatures and abundant moisture present in tropical regions. As these air masses move away from the equator, they can influence weather patterns and climate in the regions they encounter.
Tropical air masses are important in shaping weather conditions in many parts of the world, particularly in tropical and subtropical regions. When tropical air masses interact with other air masses, such as polar air masses, it can lead to the formation of weather systems, including fronts, storms, and precipitation. Understanding the characteristics and movement of tropical air masses is essential for meteorologists and climatologists in predicting weather patterns and studying climate dynamics.
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___________ are where molten magma rises to just underneath the surface of Earth, creating a bulge or volcanic activity
Answers
Because of the high pressure inside the earth, molten magma rises to just beneath the earth's surface, creating a bulge or volcanic activity as the lava comes out of the earth.
What is the lava?When there is high pressure and temperature inside the earth, it is expelled in the form of lava. A volcanic eruption occurs, and the lava has a high temperature and can spread from the origin to several miles, depending upon the eruption.
Hence, because of the high pressure inside the earth, molten magma rises to just beneath the earth's surface, creating a bulge or volcanic activity as the lava comes out of the earth.
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HELP! DUE TOMORROW!! For each item, specify the independent and dependent variables, as well as constants.
1. A study was done to find if the different tire treads affect the braking distance of a car.
independent: Dependent: Constants: please answer the question!
Answers
Dependent: time it’s takes for car to completely stop
Constants: type of car, same speed when starting to break, track your testing on
How do poor
farming methods impact Earth?
Answers
The main cause of pollution in many nations is agriculture. Pesticides, fertilizers, and other hazardous agriculture chemicals can contaminate fresh water, marine habitats, the air, and the soil. They may also persist for many generations in the environment.
What harmful effects does farming have on the environment?Large-scale conventional farming is heavily reliant on fossil fuels, herbicides, antibiotics, and synthetic fertilisers and emphasises intensive single crop production. While this method produces a lot of goods, it also adds to global warming, pollutes the air and water, and reduces soil fertility.Topsoil can dry out as agricultural fields take the place of natural vegetation. It is possible for nutrients to wash out and for the diversity and number of microorganisms that maintain the soil fertile to decline. It is possible for wind and rain to carry soil away.The production of biofuels, which can replace fossil fuels and cut greenhouse gas emissions across a variety of industries, is another benefit of agriculture. These steps are thought of as mitigating climate change.To learn more about environment, refer to:
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enzymes that can be shut down or activated based on the presence of chemicals in their environment are called
Answers
Allosteric enzymes are those that may be turned on or off depending on the chemicals present in their surrounding area.
The allosteric site, which is distinct from the enzyme's active site, is a second location on the structure of allosteric enzymes. A conformational shift in the enzyme can be brought on by the binding of certain molecules to the allosteric site, which can either stimulate or inhibit its activity. This enables the fine-tuning of enzyme activity in response to modifications in the environment or metabolic requirements of the cell. In order for a chemical reaction to take place, less activation energy is needed, which causes the reaction to proceed more quickly than it would without the enzyme. Due to their extreme specificity, enzymes can only catalyse certain types of reactions. They undergo a conformational shift to promote the reaction when they attach to a particular molecule, known as the substrate, at a location known as the active site.
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A certain DNA molecule contains 22% of the nitrogenous base Adenine. What complimentary base would be found to bind to Adenine and what concentration would the base be measured in when studying the molecule?
Answers
Answer:
Adenine would pair with complimentary base thymine and have a concentration of 22%.
Explanation:
Since purines pair with a pyrimidine, adenine would have to pair with either cytosine or thymine. Cytosine only binds with guanine leaving thymine. Since thymine pairs with adenine, there must be equal amounts in the molecule, therefore it is 22%.
What is the best way to deal with biodiversity hotspots?
Answers
A plant leaf is an organ. In what way is a human lung similar to a plant leaf? Choose the correct answer. Both organs make chemical energy. Both organs are made up of only one kind of cell. Both organs are made up of protective dermal tissue. Both organs exchange oxygen and carbon dioxide.
Answers
Answer:
Both organs exchange oxygen and carbon dioxide.
Explanation:
This is because the plant leaf exchange gases during photosynthesis where it uses carbondioxide and water in the presence of light energy and chlorophyll to produce carbohydrates and oxygen. Therefore oxygen is given out to the atmosphere and carbondioxide is taken in.
The lungs also is an organ of respiration, it is where exchange of gases take place where oxygen is taken in through breathing and carbondioxide is given out as by product.
Which of the following is NOT a component of Natural Selection?
A. Inheritance
B. Acquired Characteristics
C. Variation among a population
D. Selective pressure
Answers
Answer:
C
Explanation:
The explanation is because natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.
Explain the water cycle in one paragraph.
Answers
Answer:
The water Cycle
Explanation:
The water cycle or hydrologic is a continuous cycle where water evaporates, travels into the air and becomes part of a cloud, falls down to earth as precipitation, and then evaporates again. This repeats again and again in a never-ending cycle. Water keeps moving and changing from a solid to a liquid to a gas, over and over again.
Precipitation creates runoff that travels over the ground surface and helps to fill lakes and rivers. It also percolates or moves downward through openings in the soil to replenish aquifers under the ground. Some places receive more precipitation than others do. These areas are usually close to oceans or large bodies of water that allow more water to evaporate and form clouds. Other areas receive less precipitation. Often these areas are far from water or near mountains. As clouds move up and over mountains, the water vapor condenses to form precipitation and freezes. Snow falls on the peaks.
Animal Cells Answers
Answers
Explanation:
1. The cell membrane is a thin, semipermeable layer that surrounds the cell and separates the cell from its environment.
2. The nucleus is the control center of the cell, containing the cell's genetic material (DNA) and governing all of the cell's activities.
3. Endoplasmic reticulum (ER) is a network of membranes in the cytoplasm of the cell, which is involved in the production, modification, and transport of proteins and lipids.
4. Mitochondria are organelles that produce energy for the cell through cellular respiration.
5. The Golgi apparatus is a membrane-bound organelle that modifies and packages proteins and lipids for storage and transport.
6. Ribosomes are organelles that produce proteins based on instructions from the nucleus.
7. Lysosomes are organelles that contain digestive enzymes and help the cell break down and recycle waste materials.
8. The cytoskeleton is a network of proteins that helps the cell maintain its shape and provides support for the movement of organelles and other materials within the cell.
What is a isotonic solution? How does it affect a red blood cell?
What is a hypertonic solution? How does it affect a red blood cell?
What is a hypotonic solution? How does it affect a red blood cell?
Answer plz!
Answers
Answer: If you place an animal or a plant cell in a hypertonic solution, the cell shrinks
Explanation: because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ). ... A single animal cell ( like a red blood cell) placed in a hypotonic solution will fill up with water and then burst.
An isotonic solution is one wherein the solute concentration across the semipermeable membrane is the same resulting in an equilibrium state.
They do not shrink or swell in an isotonic saline solution, i.e., 0.9% w/v solution of sodium chloride
Hypertonic solution: A solution that contains more dissolved particles (such as salt and other electrolytes) than is found in normal cells and blood.
Now, let’s suppose RBCs are placed in a solution with a sodium chloride concentration of 2% w/v. The sodium chloride concentration of 2% w/v is greater than the RBC’s sodium content and hence the solution is hypertonic. This will result in shrinkage of the RBCs known as crenation
When a solution has a lower solute concentration than the solution present across the semipermeable membrane, it is known as a hypotonic solution. As a result, when a cell is placed in a hypotonic solution, an osmotic pressure gradient forces the solvent to move into the cell in order to attain equal solute
In another situation, let’s suppose RBCs are placed in a solution with a sodium chloride concentration of 0.1 % w/v. The sodium chloride concentration of 0.1% w/v is less than the RBC’s sodium content and hence hypotonic saline. This will result in swelling and eventually bursting of the RBCs which will result in the release of hemoglobin. This is known as hemolysis which is a very dangerous situation.
Classify the characteristics and examples below as describing producers, consumers, or decomposers.
1. break down waste to obtain energy
2. include animals such as bears
3. geenrate their own food using chemical reactions
4. include some invertebrates, such as worms
5. consume producers to obtain energy
6. include plants such as wheat
Answers
Producers are characterized by their ability to generate their own food using chemical reactions (3), while consumers consume producers to obtain energy (5), Decomposers break down waste to obtain energy (1).
In the given examples, plants such as wheat fall under the category of producers because they produce their own energy through photosynthesis. The organisms that consume producers to obtain energy are considered consumers. These consumers can be herbivores, omnivores, or carnivores, depending on their diet.
Decomposers, on the other hand, are organisms like fungi and bacteria that play a vital role in recycling nutrients in ecosystems by breaking down dead plants and animals. By classifying these characteristics and examples, we can better understand the flow of energy within an ecosystem and the roles that different organisms play in maintaining its balance.
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Whale primary functions
Answers
The primary functions of whales include feeding, reproduction, communication, and migration.
Whales are primarily filter feeders or predators, depending on the species.
Filter-feeding whales, such as baleen whales, have baleen plates in their mouths that allow them to filter out small prey, such as krill or small fish, from large volumes of water.
Predatory whales, such as toothed whales, hunt and feed on various marine organisms, including fish, squid, and marine mammals.
Reproduction is another important function for whales. Most whale species have a gestation period of several months, with females giving birth to a single calf.
The calves are nursed with milk from their mothers and rely on their care for a period of time until they become independent.
Communication is vital for whales, as they rely on vocalizations to communicate with other members of their pod.
Whales produce a variety of sounds, including songs, clicks, and whistles, which serve purposes such as mating, social interactions, and navigation.
Migration is a common behavior observed in many whale species. Whales undertake long-distance migrations, often covering thousands of kilometers, to reach feeding grounds in nutrient-rich waters or to reproduce in specific breeding areas.
These migrations are driven by seasonal changes in food availability and environmental conditions.
In summary, the primary functions of whales encompass feeding, reproduction, communication, and migration, all of which are essential for their survival and successful adaptation to their marine environments.
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If an entire genome is fragmented and then a large number of pieces are sequenced, the approach is known as the ________ approach.
Answers
The shotgun technique is used when a genome is split into several fragments and then many of those bits are sequenced. Shotgun sequencing is named after the idea that a long sequence
It is effectively divided into a great number of smaller ones, much like a shotgun shell shatters apart when fired. You effectively enter your full sequence (the part about the fire in the hole) and cut it up into pieces.
The whole-genome shotgun (WGS) method comprises the parallel sequencing of a large number of overlapping DNA fragments, followed by the computer-aided assembly of the tiny fragments into bigger contigs and, finally, chromosomes.
Thus, the shotgun strategy is referred to as the method used when a genome is completely broken up and a high number of the fragments are sequenced.
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Molecule 1 has the following sequences of bases: AAGCTC.
Which set of bases in Molecule 2 will bond to this sequence in a complementary way?
A) UUCGAG
B) TTCGAG
C) GGATGT
D) CCUAGA
Answers
Directions: Select all the correct answers.
Which of the following details are presented in the body of the passage and in the accompanying chart?
-Oxygen is a product of photosynthesis.
-Photosynthesis uses energy from the Sun.
-The products of cellular respiration are carbon dioxide and water.
-Photosynthesis and cellular respiration are interdependent.
-Glucose is a product of photosynthesis.
Answers
Photosynthesis and cellular respiration are interdependent.
What is cellular respiration?
Cellular respiration is a metabolic process by which cells convert nutrients, such as glucose, into energy in the form of ATP (adenosine triphosphate). This process occurs in all living cells and is essential for the survival of living organisms.The process of cellular respiration occurs in three main stages: glycolysis, the Krebs cycle, and the electron transport chain. During glycolysis, glucose is broken down into pyruvate and a small amount of ATP is produced. The Krebs cycle then uses the pyruvate to produce more ATP and energy-carrying molecules like NADH and FADH2. Finally, in the electron transport chain, NADH and FADH2 are used to produce a large amount of ATP.To know more about cellular respiration, click the link given below:
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the ovarian mass seen in this transvaginal ultrasound image most likely represents which of the following entities?
Answers
The ovarian mass seen in the transvaginal ultrasound image most likely represents a benign ovarian cyst. Ovarian cysts are common occurrences in women and are fluid-filled sacs that can form on or within the ovaries. They often develop as part of the normal menstrual cycle and typically resolve on their own without causing any symptoms or complications. Benign ovarian cysts can vary in size and appearance, ranging from small and simple cysts to larger complex cysts that may have solid components or septations.
The identification of the mass as a benign ovarian cyst is based on the characteristics observed in the ultrasound image. A benign cyst typically exhibits certain features, including a well-defined border, a thin wall, and a homogeneous appearance. These characteristics help differentiate it from other potential causes of ovarian masses, such as ovarian tumors or endometriomas, which may require further evaluation and management. However, it is important for healthcare providers to consider the clinical context when interpreting the ultrasound findings. Factors such as the patient's symptoms, medical history, and laboratory findings play a crucial role in making an accurate diagnosis. In some cases, additional imaging tests, such as MRI or computed tomography (CT) scans, may be recommended to further evaluate the characteristics of the cyst or to rule out other potential conditions. Although most ovarian cysts are benign and self-limiting, some may require closer monitoring or treatment, especially if they cause symptoms or if there are concerns about their potential for malignancy. Surgical intervention, such as cyst removal or ovarian resection, may be necessary in certain cases.The ovarian mass seen in the transvaginal ultrasound image most likely represents a benign ovarian cyst. However, it is essential for healthcare providers to consider the clinical context and potentially perform further investigations to confirm the diagnosis and ensure appropriate management.
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What is found in the space between the two pleural layers? a. heart b. lung c. pleural fluid d. thoracic wall e. visceral pleura
Answers
The pleural fluid is found between the space between the two pleural layers, option C.
What is the role of pleural fluid?Pleural fluid is a thin layer of liquid that is found between the two pleural layers (the parietal pleura and the visceral pleura) in the pleural cavity of the lung.
This fluid acts as a lubricant and helps to reduce friction between the two pleural layers as they move against each other during breathing. In healthy individuals, the amount of pleural fluid is usually small and does not cause any problems.
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Use the Weather probe to measure the land-air and ocean-air temperatures. What are these temperatures at this time?
Answers
Answer:
Use the Weather probeto measure the land-air and ocean-air temperatures. What are these temperatures at this time? 29.1 degrees and 22.2 degrees, respectively. C.
Explanation:
By using the Weather probe to measure the land-air and ocean-air temperatures. It is found that the temperature of land air is found be 29.1°C and the temperature of ocean air is found to be 22.2°C.
What is a weather probe?A weather probe may be defined as an observation post where weather conditions and meteorological data are considerably observed and recorded under controlled conditions. While weather governs the state of the air and atmosphere at a particular time and place.
According to the context of this question, a weather probe determines a facility, either on land or sea, with instruments and equipment for measuring atmospheric conditions to provide information for weather forecasts and to study the weather and climate.
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how do heart rate and blood pressure change during exercise? choose from the list below.a. "Heart rate is higher, but blood pressure remains the same." b. "Heart rate is higher, but blood pressure is lower." c. "Heart rate is higher and blood pressure is higher. d. "Heart rate is lower, but blood pressure is higher." e. "Heart rate is lower, but blood pressure remains the same."
Answers
During exercise, the heart rate increases to pump more oxygenated blood to the muscles. This means that option a, where heart rate is higher but blood pressure remains the same, is incorrect.
As the heart works harder to pump more blood, blood pressure also increases. Therefore, option c, where both heart rate and blood pressure are higher, is the correct answer. It is important to note that blood pressure can temporarily decrease immediately after exercise due to dilation of blood vessels, but will eventually return to normal levels. Option b, where heart rate is higher but blood pressure is lower, and option d, where heart rate is lower but blood pressure is higher, are both incorrect. Option e, where heart rate is lower but blood pressure remains the same, is not applicable during exercise.
During exercise, both heart rate and blood pressure increase to meet the body's increased demand for oxygen and nutrients. Therefore, the correct answer is option c: "Heart rate is higher and blood pressure is higher." This change ensures that the muscles receive sufficient blood supply, enabling them to perform at an optimal level throughout the exercise session.
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which part of a normal human neuron gets twisted together to form a neurofibrillary tangle
Answers
The part of a normal human neuron that gets twisted together to form a neurofibrillary tangle is the tau protein.
A neurofibrillary tangle is a twisted structure that develops inside the brain's nerve cells, mostly in individuals with Alzheimer's disease. Tau is a protein that forms fibers in nerve cells, and these fibers entwine themselves into a tangled mass.
These tangles of fibers appear to disrupt the cell's normal functioning, and they may play a role in the death of brain cells seen in Alzheimer's disease.The tau protein is responsible for the formation of neurofibrillary tangles. When this protein is abnormal, it develops into tangled filaments known as neurofibrillary tangles in the brain.
These tangles disrupt the normal functioning of the neurons, causing them to malfunction. It is one of the hallmarks of Alzheimer's disease and other neurodegenerative disorders.
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Select the correct answer.
Why is the nucleus considered the command center of the cell?
A.
It contains the genetic instructions for every function of the cell.
B.
It is the cell’s powerhouse and processes energy for the cell.
C.
It is the organelle present in both prokaryotic and eukaryotic cells.
D.
It is responsible for packaging proteins for delivery out of the cells.
Answers
what is the relationship between the ability of bacteria to lyse rbc and virulence?
Answers
Answer:
ur mom???
Explanation:
preganglionic sympathetic fibers release. a. acetylcholine (ach) b. norepinephrine (ne) c. both a and b d. none of the above
Answers
Preganglionic sympathetic fibers release acetylcholine (ACh) (option a). When the sympathetic division of the autonomic nervous system is activated.
Preganglionic fibers, originating from the intermediolateral column of the spinal cord, release ACh as their primary neurotransmitter at the synapses within the autonomic ganglia.
After the release of ACh, it binds to nicotinic acetylcholine receptors located on the postganglionic neurons within the autonomic ganglia. This binding initiates the transmission of the nerve impulse from the preganglionic to the postganglionic neuron.
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In photosynthesis, carbon dioxide (CO₂) and water (H₂O) combine to form the sugar glucose (C6H12O6) in the following reaction:
6CO₂ + 6H₂O → C6H12O6 + ?
Assuming this equation is balanced, which part is missing from the product side?
(1 point)
O 6 carbon atoms
O 6 oxygen atoms
O 12 hydrogen atoms
12 oxygen atoms
Answers
Answer:
Explanation:
6CO₂ + 6H₂O → C₆H₁₂O₆ + ?
To have a balanced equation there must be the same number on both sides of the equation for each type of atom.
There are 6 carbons on the left and right sides of the equation, so they are balanced.
There are 12 hydrogens on the left and right sides of the equation, so they are balanced.
There are 18 total oxygen atoms on the left side of the equation, but there are 6 oxygen atoms on the right side of the equation.
We need 12 more oxygen atoms on the right side of the equation to have a complete and balanced equation.
Add 12 more oxygen atoms in the form of 6O₂ on the right side of the equation. Now there is a total of 18 oxygen atoms on the left and right sides of the equation.
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
if two species of woodpeckers eat two different kinds of beetle larvae on pine trees in a forest, we would identify that as:
Answers
If two species of woodpeckers eat two different kinds of beetle larvae on pine trees in a forest, we would identify that as resource partitioning.
A species is both a unit of biodiversity and an organism's basic taxonomic classification in biology. A species is the largest collection of organisms in which any two people of the appropriate sexes or mating types can conceive a fertile offspring, typically through sexual reproduction. In addition, a species can be recognized by its karyotype, DNA pattern, anatomical features, behavioral traits, or ecological niche. Additionally, paleontologists employ the chronospecies concept because fossil reproduction cannot be investigated.
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