If B represents the allele for black hair and b represents the allele for white hair then a cross between Bb and Bb will lead to the following kind of progenies.
Parental: Bb x Bb
F1 : BB Bb Bb bb
Genotypic ratio : 1:2:1
Phenotypic ratio : 3:1
The phenotypic ratio indicates that three of the four off springs will have black hair while one of the four off springs will have white hair.
Amongst 3 offsprings which have black hair, one will be homozygous dominant whereas other two which have black hair color will be heterozygous dominant.
An opening in the dermis through which perspiration reaches the surface of the skin is called
An opening in the dermis through which perspiration reaches the surface of the skin is called pores.
Explanation:
Skin is the second largest organ of the human body. The skin in order to regulate the body temperature expels the liquid in the form of sweat. This sweat is normally not pure water. It is a mixture of water with minerals and salts. This process is called as the perspiration. Skin has got sweat glands which is present throughout the body.
This sweat gland through the small holes called pores that expel the sweat. Normally we sweat through arm pits, face, palm of hands and sole of the foot. Women tend to sweat more than men. A normal pure sweat is odorless hence distinctive odor in the sweat can help us identify certain differences the body is undergoing .
Pain at specific trigger points along the neck and back is associated with the condition of ______
Answer: Pain at specific trigger points along the neck and back is associated with the condition of knots .
Explanation:
Pain at specific trigger points along the neck and back is associated with the condition of knots .
Knots refers to collection of tense and contracted muscles, when we pressed or moved the pain spread.
For example, trigger point may be in our shoulder but pain may be shoot up when pushed.
Which communities do early colonizers form?
Early colonizers result in the formation of communities.
Answer:
The correct answer is ecological communities.
Explanation:
The early colonizers result in the generation of ecological communities. The formation of these communities starts with a few animals and plants, which afterward develops into a complexity. They become self-perpetuating or stable in the form of a climax community. Their succession results in a change in the ecosystem, that is, the established species with the surrounding.
(last word) a study found that the incidence of skin cancer increases along with the amount of time people work under fluorescent light, leading some people to conclude that fluorescent lighting is a cause of skin cancer. but further analysis found that people who work in offices, where fluorescent light is common, suffer more sunburn on their vacations than other workers. the sunburns, not the fluorescent light, were the cause of the higher incidence of skin cancer. the original conclusion illustrates
A client has discussed therapy for his hiv-positive status. what does the nurse understand is the goal of antiretroviral therapy?
Skulls can reveal many things about our hominid ancestors. What aspect of hominids is not related to skull anatomy?
A. What they ate.
B. Their hair and skin color.
C. Whether they stood upright.
D. The shape and size of their brain.
The answer is B.
Choice A is wrong because what they ate is how the skull is shaped and how the skull uses itself to find and eat food.
Choice C is wrong because it went over that in the Gizmos activity
Choice D is wrong because their brain was in their skull to help shape how the skull looked like.
The correct answer is - B. Their hair and skin color.
The hair and skin color of the hominids is not related to the shape and size, or rather the anatomy of the skull. The development of hair and skin color is actually dependent on the surrounding environment, since it can be used for camouflage, for protection of cold, or protection of the sun, but it has nothing to do with the bone structure of the skull.
The anatomy of the skull is defined by the eating habits, the way of motion, the size and the shape of the brain.
During which stage of the cell cycle does the cell membrane pinch the cell in two
Based on your chromatography strip which plant pigament is most polar list color
In tunicates, the anus empties into the excurrent siphon. what is the advantage of this anatomical arrangement?
Final answer:
In tunicates, having the anus empty into the excurrent siphon expels waste away from the organism, preventing contamination of their feeding system and maintaining a clean environment.
Explanation:
The anatomical arrangement of the anus emptying into the excurrent siphon in tunicates provides notable advantages. Most tunicates are stationary, which means they rely on water movement around them for essential processes like feeding and excretion. The incurrent siphon brings in water that contains food particles and plankton, which are then filtered by the pharyngeal slits and trapped in a mucus net. This filtered material is then ingested and processed by the digestive system. The presence of the anus in the excurrent siphon is beneficial as it ensures that waste is expelled in a directed manner, away from the animal, through the excurrent siphon. This efficient waste elimination helps to prevent contamination of the suspension feeding system and maintains the organism's living environment clean from their own excreted waste, which is crucial for an organism living in a fixed location.
Which disorder is likely to be present in the family, based on the illustrated inheritance pattern?
Answer:
B, the answer is color blindness
All animals can probably trace their lineage to a common ancestor that lived in the _____.
A client had surgery 6 weeks ago. the surgeon used a plate to fix a metacarpal shaft fracture. the client is experiencing moderate edema that makes it difficult to make a fist. grasping containers and manipulating clothing fasteners are the most difficult tasks. what is the best approach for the otr® to take to address the client's edema?
A bird's ability to fly south when winter weather approaches is an example of what adaptation?
A bird's ability to fly south when winter weather approaches is an example of an adaptation known as migration.
A bird's ability to fly south when winter weather approaches is an example of what adaptation?
A bird's ability to fly south when winter weather approaches represents the adaptation of migration. This behavioral adaptation enables birds to cope with changing environmental conditions, ensuring their survival and reproductive success in diverse habitats throughout the year.
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When a patient is dying, he or she may experience regression. this is most accurately defined as:?
Describe the occasion in which the bacterial dna withstood conditions
during dna replication in a human cell, 6 billions bases must be paired properly. which characteristic of dna best allows for high level of accuracy during this process
Answer: The complementary base pairing helps in proper pairing of the bases.
Explanation:
The complementary of base pair shows that the adenine will only bind to the thymine and the guanine will only bind to the cytosine and with any other base pair.
So, the template no matter how long it is, the adenine in them will bind to the thymine and the cytosine will bind to the guanine.
The bonds in between are double hydrogen bond in case of adenine and thymine and triple hydrogen bond in case of guanine and cytosine.
This aids in pairing of 6 billion bases during the time of DNA replication in human beings.
Which behavior in a client with schizophrenia demonstrates the client's cognitive inability to appropriately process data from external stimuli?
4. What does the tree of life represent? (1 point)
A. the current hypothesis of the evolutionary relationships between organisms
B. the relationship between different taxa in the three domains based on DNA evidence
C. the Linnaean relationships between kingdom, phylum, class, order, family, genus, and species
D. only the clades that include living organisms
A patient presents to the emergency department with weight loss, petechiae, and splinter hemorrhages. the patient's vital signs are: blood pressure 135/82, pulse 108, oxygen saturation 96%, on room air, and temperature 101.4° f. upon physical assessment, a new murmur is noted. what diagnostic test should be done first?
Which genetically engineered hormone is used to control glucose levels in humans? insulin flu shot penicillin human growth hormone
Answer:
The correct answer is insulin.
Explanation:
Insulin refers to a hormone, which gets secreted or discharged from the pancreas. When the levels of glucose in the bloodstream elevates, the insulin makes the liver to transform glucose into glycogen and makes fats tissues and cells of the muscles to consume glucose. This is how the genetically engineered insulin has an application in controlling the level of glucose in the blood in the individuals suffering from diabetes.
Which disease is least likely to be attributed to poor sanitation, water, and hygiene?
Voltage-activated channels are channels for which a change in the voltage across the membrane alters their ____.
Answer:
Permeability
Explanation:
Voltage-activated channels are channels for which a change in the voltage across the membrane alters their PERMEABILITY.
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When the blood ph is raised or lowered and the source of acid does not involve the respiratory system it is considered ________?
Plant A and Plant B are heterozygous for a gene that expresses their tall trait (Tt). Upon crossing, what is expected in the offspring, assuming random chromosome segregation?
Answer:
The Plant A is heterozygous for the gene expressed their tall trait (Tt) and Plant B is also heterozygous for the same trait.
( Plant A ) Tt X Tt ( Plant B) = TT Tt Tt tt
The products are 75 per cent tall by phenotype and 25 per cent dwarf by phenotype.
If the cross between the two heterozygous gene is done which shows the trait as tall, and then the offspring will have 75% as tall plant and 25 % as dwarf plant.
A nurse is caring for a 7-year-old child in the pediatric intensive care unit who has increased intracranial pressure as a result of head trauma. the healthcare provider prescribes intravenous mannitol. the nurse monitors the child's intracranial pressure and urine output because mannitol belongs to which classification of diuretics?
Enzymes need certain environmental conditions in order to function properly. what happens when enzymes are heated to a high temperature?
When enzymes are heated to a high temperature, they can denature, losing their structure and function. Similarly, extreme pH values can also cause denaturation of enzymes.
Explanation:Enzymes need certain environmental conditions in order to function properly. When enzymes are heated to a high temperature, they can denature, losing their three-dimensional structure and function. This is because high temperatures can break the chemical bonds within the enzyme's active site, making it less well-suited to bind substrates. Enzymes also function optimally within a certain pH range, and extreme pH values can also cause denaturation of enzymes.
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What is iodine solution changing from amber-yellow to blue-black an indication of?
a.the presence of reducing sugars or monosaccharides
b.the presence of proteins or peptide bonds
c.the presence of lipids or fats
d.the presence of starches or complex carbohydrates submit for grading save and finish later?
Iodine solution is prepared by dissolving iodine in a solution of potassium iodide. This iodine reagent is amber-yellow colored. When this iodine solution is added to starch solution which is a polysaccharide, the yellow colored reagent changes to blue-block color. This color change is due to the formation of a charge transfer complex between starch and the triioidide present in iodine solution. So, the correct answer is d. the presence of starches or complex carbohydrates
"secretion of glucagon from the pancreas results in ________, which causes a(n) ______"__ in blood glucose levels.
which arrows represent photosynthesis and cellular respiration?
3rd arrow represents photosynthesis and 4th is cellular respiration.
What is cellular respiration?Cellular respiration is the process by which cells break down glucose and other organic molecules to release energy in the form of ATP (adenosine triphosphate). It is a metabolic process that occurs in the cells of all living organisms and involves a series of biochemical reactions that convert the chemical energy stored in glucose into a more usable form of energy (ATP).
The process of cellular respiration occurs in three stages: glycolysis, the Krebs cycle (also known as the citric acid cycle), and oxidative phosphorylation (also known as the electron transport chain). Cellular respiration is essential for life as it provides the energy needed for cells to carry out their functions and maintain homeostasis.
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Although the reactions of the calvin cycle are not directly dependent on light, they usually do not occur at night. why?
The Calvin cycle does not directly depend on light, but it relies on the products of the light-dependent reactions in photosynthesis. Therefore, it usually does not occur at night.
Explanation:The Calvin cycle, which is the process by which plants convert carbon dioxide into glucose, does not directly depend on light. However, it usually does not occur at night because it relies on the products of the light-dependent reactions in photosynthesis. These reactions occur during the day when sunlight is available, and their products, such as ATP and NADPH, are necessary for the Calvin cycle to take place.
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