If a man with blood type B, of whose parents had blood type O marries a woman with blood type AB what will the percentage of their child be with blood type B?
Answers
Answer: 50%
Explanation: Blood type is inherited from both parents. The ABO blood type is controlled by a single gene (the ABO gene) with three types of alleles inferred from classical genetics: i, IA, and IB1. The i allele codes for no antigen on the red blood cells, the IA allele codes for the A antigen, and the IB allele codes for the B antigen. The IA and IB alleles are codominant, meaning that they both express their antigens when present together. The i allele is recessive, meaning that it is masked by the presence of either IA or IB.
A person’s blood type is determined by the combination of alleles they inherit from their parents. For example, a person with blood type A can have either IAIA or IAi as their genotype. A person with blood type B can have either IBIB or IBi as their genotype. A person with blood type AB can have only IAIB as their genotype. A person with blood type O can have only ii as their genotype.
In this question, the man has blood type B and his parents had blood type O. This means that his genotype must be IBi, since he inherited one i allele from each parent and one IB allele from a mutation or a rare case of non-paternity. The woman has blood type AB, which means that her genotype is IAIB.
To find the percentage of their child having blood type B, we can use a Punnett square to show the possible combinations of alleles from each parent. A Punnett square is a diagram that shows the possible outcomes of a genetic cross.
A Punnett square is a way of showing the possible combinations of alleles that can result from a genetic cross between two parents. Each parent contributes one allele for each gene to their offspring. The alleles are represented by letters, such as IA, IB, or i for the ABO blood type gene. The letters are arranged in rows and columns to show the possible combinations.
To make a Punnett square, we first write the alleles of one parent along the top of the square, and the alleles of the other parent along the left side of the square. For example, if one parent has IA and IB alleles, we write IA and IB along the top. If the other parent has IB and i alleles, we write IB and i along the left side.
Then, we fill in each box of the square by combining the alleles from each parent. For example, the box in the top left corner is filled by combining IA from the top parent and IB from the left parent. This gives us IAIB as the genotype for that box. We repeat this process for each box until we have filled in all four boxes.
The Punnett square shows us the possible genotypes and phenotypes of the offspring. The genotype is the combination of alleles that an individual has for a gene. The phenotype is the observable trait that results from the genotype. For example, IAIB is a genotype that results in blood type AB as a phenotype.
The Punnett square also shows us the probability of each genotype and phenotype occurring in the offspring. The probability is calculated by dividing the number of boxes with a certain genotype or phenotype by the total number of boxes. For example, there are two boxes with blood type B (IBIB and IBi) out of four boxes total. Therefore, the probability of blood type B is 2/4 or 50%. We can do this for each genotype and phenotype to find their probabilities.
Hope this helps, and have a great day! =)
Related Questions
can i pls have help with this
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Answer:
Scientists try to control most variables in an experiment to find a relationship between the independent variable and the dependent variable
Answer:
Controls are done in order to know if experiments or the subjects being tested are working. Both the control and the subject are compared and observed for change or improvement that will lead to answering to the hypothesis. Since the tested variables will determine the results.
during which phase of mitosis do nuclear membranes form around 2
sets of chromosomes
Answers
Answer:
Telephase
Explanation:
Which of the following statements regarding natural selection is false? Group of answer choices Natural selection and evolutionary change are generally a slow, gradual process. Natural selection depends on the environment organisms are living in. Natural selection starts with the creation of new alleles that improve an organism's fitness. Natural selection can be observed working in organisms alive today.
Answers
Answer:
Natural selection starts with the creation of new alleles that improve an organism's fitness
Explanation:
Natural selection doesn’t immediately create new alleles to improve the organisms fitness, over time and throughout generations, the alleles are improved and changed to help the organisms fitness.
many model organisms in microbiology reproduce in minutes, not hours. for example, e. coli, one of the most popular bacteria to study in the lab, divides every 20 minutes. with this in mind, do you think this makes research on tb more difficult than studying some other bacterial diseases? explain why in 1-2 sentences.
Answers
Yes, the fast reproduction rate of model organisms in microbiology, such as E. coli dividing every 20 minutes, does make research on TB more difficult than studying some other bacterial diseases.
This is because TB bacteria have a much slower growth rate, with a generation time of around 24 hours. challenges are as follows:
1. Time constraints: The slow growth rate of TB bacteria means that experiments and observations take significantly longer. Researchers have to wait for longer periods to obtain results, making the research process more time-consuming.
2. Resource allocation: The slower growth rate of TB bacteria requires more resources, such as culture media and lab space, over an extended period. This can strain the availability of these resources, potentially limiting the scope and scale of research projects.
3. Experimental design: The rapid reproduction rate of model organisms allows for quick and easy manipulation of variables in experiments. However, with TB bacteria, researchers must carefully plan experiments due to the extended time needed for growth and observation. This makes experimental design more complex and challenging.
4. Genetic manipulation: The longer generation time of TB bacteria also hampers genetic manipulation experiments. Genetic modifications and gene knockouts require multiple generations of bacteria, prolonging the time needed for genetic studies on TB.
In conclusion, the slow growth rate of TB bacteria compared to fast-reproducing model organisms in microbiology presents challenges in terms of time, resources, experimental design, and genetic manipulation. These factors contribute to the difficulties associated with research on TB compared to studying other bacterial diseases.
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True or False: Glycogen, Starch, and Cellulose are all polysaccharides.
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During growth of the mandible (intramembranous)
where does RESORPTION happen?
where does apposition happen? 3
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During the growth of the mandible through intramembranous ossification, resorption and apposition occur at different locations.
Resorption: This process occurs on the inner surface of the mandible, specifically on the lingual side (toward the tongue). Osteoclasts break down the bone tissue, allowing for remodeling and growth in this area.
Apposition: Apposition happens on the outer surface of the mandible, particularly on the buccal side (toward the cheeks). Osteoblasts deposit new bone tissue, leading to the expansion and growth of the mandible.
In summary, during mandible growth, resorption happens on the inner (lingual) surface, and apposition occurs on the outer (buccal) surface.
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HELP PLEASE
If your immune system can’t actually stop you from getting ill, then why is it beneficial? Why do you think it evolved to work this way, instead of simply stopping every infection in its tracks?
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Answer:
Your immune system fights off infection and disease. It has a number of ways to detect and destroy anything it recognizes as foreign to your body, including bacteria, viruses, fungi, parasites or unhealthy cells such as cancer cells. In some people, the immune system goes into overdrive, causing the body to see its own cells as foreign and attack them. This leads to what we call autoimmune diseases, such as Crohn’s disease, rheumatoid arthritis and lupus.
Explanation:
Which of the following give an organism a more favorable advantage and more likely will be
passed on to an offspring?
Answers
Answer:
The answer is Natural selection
write a brief note about the nasal cavity
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Answer:
The nasal cavity is the inside of your nose. It is lined with a mucous membrane that helps keep your nose moist by making mucus so you won't get nosebleeds from a dry nose. There are also little hairs that help filter the air you breathe in, blocking dirt and dust from getting into your lungs.
HELP! this is a biology question so please answer if you know:)
Answers
Answer:
its cells cannot be created or destroyed
HELPP!
What do you predict would happen if peppered moths laid fewer eggs and lived for a longer period of time?
Answers
Answer:
the moths might go extinict ?? i don't know
Which is a long-term benefit of fitness? (5 points) a high blood pressure b bone health c arthritis d depression
Answers
A long-time period advantage of fitness: bone fitness.
Fitness means the situation of being bodily and mentally in shape with true health. it is the capability to perform every day duties with energy and application, with out undue fatigue, and with enough power to experience existence.
Exercise is a subset of physical interest that is deliberate, structured, and repetitive and has as a final or an intermediate goal the development or renovation of physical fitness. bodily health is a hard and fast of attributes that are either health- or skill-related.
Being physically energetic can improve your mind fitness, help manage weight, lessen the hazard of disease, strengthen bones and muscle mass, and enhance your ability to do ordinary sports. Adults who sit down much less and do any quantity of mild-to-vigorous bodily hobby benefit a few fitness benefits.
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Answer: bone health
Explanation:
trust me it's right
what kinds of materials do plate tectonics and hot spots bring to earth's surface
Answers
Plate tectonics bring a variety of materials to the Earth's surface, including molten rock, sedimentary rocks, and metamorphic rocks.
What is tectonics?Tectonics is the study of how the Earth's lithosphere (the outer layer of the Earth) is deformed and broken into tectonic plates that move and interact with each other. These movements cause earthquakes, volcanoes, mountains, and oceanic trenches to form. Tectonics also affects the Earth's climate, oceanography, and geologic history. Tectonics is the study of the structure and dynamics of the lithosphere, and how the lithosphere interacts with other components of the Earth system. It helps us to understand the Earth's evolution and the processes that shape the Earth's surface. Tectonic processes are responsible for the formation and destruction of mountains, the formation of oceanic trenches, the generation of earthquakes, and the distribution of volcanoes across the Earth's surface.
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What’s the name of the area of the eye where there are no rods or cones
Answers
The name of the area in the retina of the eye where there are no rods or cones is a blind spot.
Rods and cones are both photoreceptor cells. When a light ray passes through the cornea and lensand it is focused on the retina it generates impulses in rods and cones.
As there are no rods and cones in the blind spot the image that falls in this region con not be seen.
The blind spot of the eye can also be known as scotoma or punctum caecum
From where do we get nitric oxide
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Answer:
Nitric oxide is found in supplements but if you want it naturally it comes in red meat,poultry,fish, and dairy such as milk cheese and etc. I hope this answers your question.
How many enzymes are in a human cell?
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1,300 in a human cell.
Ignore this bit, it won't let me post it unless it's over 20 words. i hope you get your paper done.
There are approximately 1300 different enzymes found in the human cell. These enzymes can combine with coenzymes to form nearly 100,000 various chemicals that enable us to see, hear, feel, move, digest food, and think.
What is the order of amino acids in a protein?
Answers
The order of amino acids in a protein is regulated by the genetic coding inside the DNA sequence of the gene that codes for the protein.
The three-letter nucleotide sequences that make up the genetic code each code for a different amino acid. The right sequence of amino acids is then used to join them to create a peptide chain, which is finally folded into a three-dimensional structure.
The nucleotide sequence in the gene determines the order of the amino acids, and it is these amino acid sequences that decide the final structure and function of the protein.
As a result, the genetic coding of the gene that codes for a protein determines the amino acid sequence of a protein.
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why do you think people that are homozygous (tt) for the dominant allele have a much stronger bitter taste?
Answers
Definitions (2 marks each) 1. Hypsodont teeth 2. Dental formula 3. Digitigrade 4. Selenodont dentition 5. Fossorial 6. Odontoceti 7. Precocial 8. Carnaissals 9. Tragus 10. Saltatorial Section 2-Matching-Order Cetacea (1 mark each) For the following characteristics listed below, choose the best match: Grey Pacific White Sided Dolphin Humpback Dall's Porpoise Minke Killer Whale Sperm Harbour Porpoise
Answers
1. Hypsodont teeth: Hypsodont teeth are characterized by having a high crown and limited growth, which allows for continuous wear and makes them suitable for grinding rough, fibrous plant material.
2. Dental formula: The dental formula is a shorthand notation used to represent the number of each type of tooth present in an animal's jaw. It indicates the number of incisors, canines, premolars, and molars in one side of the upper and lower jaws.
3. Digitigrade: Digitigrade locomotion is when an animal walks on its digits (toes), with the heel and wrist elevated off the ground. This is commonly seen in animals like cats and dogs.
4. Selenodont dentition: Selenodont dentition refers to teeth with crescent-shaped ridges on the grinding surface, which is typically found in some herbivorous mammals like deer and cows.
5. Fossorial: Fossorial animals are those that are adapted for digging and living underground, such as moles and certain types of rodents.
6. Odontoceti: Odontoceti is a suborder of cetaceans (whales, dolphins, and porpoises) that have teeth instead of baleen plates. Examples include dolphins, porpoises, and sperm whales.
7. Precocial: Precocial animals are those that are relatively mature and mobile from the moment they are born or hatched. Examples include ducks, chickens, and ungulates.
8. Carnassials: Carnassials are specialized teeth found in carnivorous mammals that are adapted for shearing flesh. They consist of a modified upper premolar and a lower molar.
9. Tragus: The tragus is a small, pointed, cartilaginous flap in front of the external opening of the ear, which is present in many mammals.
10. Saltatorial: Saltatorial locomotion refers to jumping or hopping movement, which is commonly seen in animals like kangaroos and rabbits.
Regarding Section 2, the question is not clear enough to provide a matching answer. Please provide more context or specific characteristics that need to be matched with the cetacean species mentioned.
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nearly all species of sea turtles are now classified as what?
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Nearly all species of sea turtles are now classified as endangered or threatened. This means that their populations are at risk of decline, primarily due to human activities such as habitat destruction, pollution, climate change, and illegal hunting or poaching. Conservation efforts are in place to protect these majestic creatures and ensure their survival for future generations.
Nearly all species of sea turtles are now classified as endangered or critically endangered by the International Union for Conservation of Nature (IUCN). This classification is due to a variety of threats that sea turtles face, including habitat loss, accidental capture in fishing gear, pollution, and climate change. The six species of sea turtles include the green, hawksbill, loggerhead, leatherback, olive ridley, and Kemp's ridley.
Each species has its own unique characteristics and habitats, but all are facing similar threats to their survival. Conservation efforts have been put in place to protect sea turtle populations, such as beach monitoring and protection, hatchery programs, and the reduction of fishing gear and plastic pollution in the ocean. It is important to continue these efforts to ensure the survival and protection of these magnificent creatures for generations to come.
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what is the point of mitosis
Answers
Answer:
Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.
Explanation:
Answer: Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.
differentiate between middle and inner part of ear
Answers
Answer:
middle= This is the part through which sound travel inside the ear to the eardrum through the auditory canal . sound causes the eardrum nad it's tiny attached bones in the middle portion of the vibration and conducted to the nearby cochlea
inner part= the cochlea is the part of the inner ear . its main function is to transform sound into nerve impulses......
What can you ask about creating a model to represent the breakdown of fresh water?
Answers
Answer:
The most reasonable and realistic ways to represent these bodies of water would be by drawing a picture, creating a map, or building a model.
Explanation:
right
Lysozyme is an enzyme that breaks down bacterial cell walls and is found in your tears, mucus, and saliva. A mutation occurs in the gene for lysozyme that results in a lysine (a positively charged amino acid) being substituted for an arginine (also a positively charged amino acid). Do you think that the mutant lysozyme will function similarly to the normal lysozyme
Answers
"Lysozyme is an enzyme that breaks down bacterial cell walls and is found in your tears, mucus, and saliva.
A mutation occurs in the gene for lysozyme that results in a lysine (a positively charged amino acid) being substituted for an arginine (also a positively charged amino acid). No, the mutant lysozyme will not function similarly to the normal lysozyme. :Lysozyme is an enzyme that catalyzes the hydrolysis of 1,4-beta-linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in peptidoglycan, which is the main component of bacterial cell walls. It is an essential element of the body's natural defense mechanisms against bacterial infections.
The mutation occurs in the lysozyme gene, resulting in a substitution of a lysine (a positively charged amino acid) for an arginine (also a positively charged amino acid).As a result, the mutation in the lysozyme gene would alter the protein's shape, affecting its catalytic efficiency and possibly impairing its ability to function effectively. This may alter the conformation of the active site of the protein and impair its ability to cleave peptidoglycan bonds, causing the mutant lysozyme to be less effective than the normal lysozyme.
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Of the following plants, which stem has scattered vascular bundles? A. corn B. magnolia C. chrysanthemum D. hibiscus
Answers
Of the following plants, a. corn stem has scattered vascular bundles.
How do vascular bundles work?The transport system in vascular plants includes vascular bundles. The actual transport takes place in the stem, which comes in the xylem and phloem forms. A vascular bundle, which also contains supporting and protecting tissues, contains both of these tissues. The Cambium, a tissue, is also present between the xylem and the phloem.
Phloem is often found farther from the axis than the xylem, which is typically adaxial (abaxial). This indicates that in a stem or root, the xylem is closer to the interior while the phloem is closer to the exterior. The upper side of a leaf is typically the adaxial surface, and the bottom side is the abaxial surface.
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Please Help! Will Give Brainliest For Correct Answer
Answers
Answer:
Put these items in order from largest to smallest as follows:
chromosomes,genes, proteins , DNA
Explanation:
l hope it helps ❤❤❤
What is a natural source of CO2
Answers
Answer:
venting volcanoes
Explanation:
Mendel established several principles of heredity from his experiments and observations. What did he conclude regarding the inheritance of genes from parents?
Answers
This could be wrong but, he said that we take 50% from each parent.
23 from mom and 23 from dad to make up the full 46. Each of those chromosomes carry a specific genetic code.
Hope it’s right :)
according to video lecture by dr. charles kibert, how will climate change affect florida?
Answers
According to the video lecture by Dr. Charles Kibert, climate change will affect Florida in several ways: Sea level rise, increased temperatures, intensified hurricanes, changes in precipitation patterns, and impacts on ecosystems and biodiversity.
According to the video lecture by Dr. Charles Kibert, climate change will affect Florida in several ways:
1. Sea level rise: Due to melting ice caps and thermal expansion of water, sea levels are expected to rise, causing coastal flooding and erosion in low-lying areas of Florida.
2. Increased temperatures: Climate change will lead to increased average temperatures in Florida, resulting in more heatwaves and higher energy demands for air conditioning.
3. Intensified hurricanes: Warmer sea surface temperatures may lead to more intense and frequent hurricanes, causing significant damage to infrastructure, property, and the natural environment.
4. Changes in precipitation patterns: Florida may experience changes in precipitation patterns, with wetter wet seasons and drier dry seasons, affecting water resources and agriculture.
5. Impacts on ecosystems and biodiversity: Climate change can cause shifts in ecosystems and the distribution of plant and animal species, affecting Florida's unique biodiversity and potentially leading to the loss of some native species.
Overall, climate change poses significant challenges to Florida's environment, infrastructure, and economy, requiring proactive planning and adaptation measures to mitigate these impacts.
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A test was done to determine the biological father of a child. The child's blood Type is A and the mother's is B. Dude #1 has a blood type of O, & dude #2 has blood type AB. Which dude is the biological father?
Answers
Answer:
Dude 2
Explanation: