The description applies to buck at the beginning or the end of the call of the wild
is the pack leader
Buck at the end of the story
Expects rules and polite behavior:
Buck at the beginning of the story
Understands that the wild has no mercy:
Buck at the end of the story
Is part of the world of humans:
Buck at the beginning of the story
While the reader is made aware of some sort of issue, he or she is not yet aware of its specifics beyond the knowledge that dogs are somehow involved.
In the words "Not alone for himself, but for every tidewater dog," we learn of a character in the novel named Buck, who must be a dog. Since the author alludes to the region from Puget Sound to San Diego—all the way from Washington State to the southernmost point of California—we discover that the book's location may be on the west coast of the United States.
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staphylococcus aureus and staphylococcus epidermidis have which feature in common? group of answer choices slime layer (capsule) protein a staphylokinase coagulase hyaluronidase
Due to its lack of the coagulase enzyme, S. epidermidis is a member of the CoNS subgroup of staphylococci, which is distinguished from coagulase-positive staphylococci like S. aureus. With 74 identified sequence types (STs), the species exhibits a high level of diversity.
What are Staphylococcus epidermidis' characteristics?Gram-positive, non-motile cocci arranged in clusters that resemble grapes make up the extremely resilient microorganism S. epidermidis. After being incubated for a night, it grows on blood agar in white, raised, cohesive colonies that are 1-2 mm in diameter and are not hemolytic.
The most accurate way to recognise Staphylococcus aureus is through coagulase testing. Slide coagulase test (SCT) and tube coagulase test are two methods for identifying coagulase production (TCT).
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he information below shows and describes the intermediate steps of the MAPK/ERK signaling cascade. After MEK is activated, it phosphorylates and activates ERK. ERK goes on to phosphorylate and activate a variety of target molecules, including transcription factors like c-Myc that promote cell growth and division.
Which of the following toxins will most likely inhibit the phosphorylation of c-Myc?
answer choices
A toxin that prevents the phosphorylation of ERK
A toxin that prevents the dephosphorylation activity of MEK
A toxin that prevents the removal of a phosphate group from ERK
A toxin that prevents c-Myc from activating ERK
The addition of a phosphoryl (PO3) group to a molecule is known as phosphorylation. This reaction is critical in biological systems for the storage and transfer of free energy via energy carrier molecules. The correct answer (a) A toxin that prevents the phosphorylation of ERK.
What exactly is ATP phosphorylation?
Oxidative phosphorylation is the production of ATP via chemiosmosis using energy derived from electron transfer in an electron transport system. A hydrogen atom contains only one proton (H+) and one electron. Electrons have potential energy, or stored energy, ready to do work.
What exactly is phosphorylation, and when does it happen?
Normally, phosphorylation occurs when DNA is damaged, creating space around the broken DNA for repair mechanisms to work. Protein phosphorylation is important in metabolism and signaling pathways, in addition to its role in DNA repair.
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How often should the filter be cleaned?.
Typically of thumb, Ray says human beings should alternate an air filter each two to three months and a water filter every six months
A grimy filter out can reason allergens to accumulate in our duct device, and they will linger there for months. every time we have a compelled-air machine jogging, the allergens might be released into the air we breathe. you would possibly even end up with mold trouble within the ducts.
Make certain to replace the clear-out media at least each three to four weeks and supply the filter-out housing with a quick rinse. If any algae or debris has accrued within the intake tube, easily that as nicely.
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if we wanted a control to see both growth and a color change on macconkey plates, which eskape relative would we use?
Bacteria can be selectively and differentially cultured on eskape relative would we use E. coli MacConkey .
Why does MacConkey agar have a bias?This medium is both differential and selective. Bile salts and the dye crystal violet are the selective components because they stop Gram-positive bacteria from growing. Lactose is the unique component.
What purposes does MacConkey media serve?Gram-negative enteric bacteria are isolated using MacConkey agar, which is also used to distinguish between lactose-fermenting and lactose-non-fermenting gram-negative bacteria. Additionally, it has been normal practise in the media to categorise bacteria according to how well they can ferment carbohydrates other than lactose.
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read the descriptions below regarding water excretion and reabsorption in the nephron. then, click and drag each into the appropriate category to identify which hormone's actions or properties it describes.
Antidiuretic hormone:
Increases water permeability of collecting duct.Increases reabsorption of water via collecting duct.Natriuretic peptides:
Inhibit ADH secretion.Increases hydrostatic pressure in the glomerular capillaries.Inhibits NaCl reabsorption via the collecting ductAldosterone:
Stimulated by angiotensin II.Last step of renin angiotensin mechanism.Parathyroid hormone:
Increases phosphate levels in urine.What is angiotensin-converting enzyme (ACE)?Angiotensin-converting enzyme (ACE) is a key component of the renin-angiotensin system and controls blood pressure by regulating fluid volume in the body. It converts the hormone angiotensin I into the active vasoconstrictor angiotensin II. Serum ACE may be primarily derived from endothelial cells of pulmonary capillaries.
ACE helps diagnose and monitor a condition called sarcoidosis. People with sarcoidosis can have their ACE tested regularly to check the severity of their disease and the effectiveness of treatment. This test can also help confirm the diagnosis of Gaucher disease.
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on this graph, what percentage of phage dna remains with the bacteria (is intracellular) after 8 minutes of blending?
The phage-bacteria solution was blended to liberate the phages bound to the bacterial membrane. 8 minutes after the DNA has begun.
What was the outcome of the blender experiment?The most well-known experiment is the Hershey-Chase experiment, also known as the Waring Blender experiment, in which Hershey and Chase showed that phages only injected their DNA into host bacteria and that the DNA operated as the replicating genetic element of phages.
How many phages are there in bacteria?Diversity and abundance of phages. Epi fluorescent microscopy and DNA staining were the early techniques that revealed phage abundance, and they suggested that there are around 10 phages present in sea water for every bacterial or archaeal cell.
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Acne-like rash, diarrhea, lack of appetite, delayed wound healing, impared immunity, reduced sense of taste and smell, and hair loss are all symptoms of a:
zinc deficiency
Symptoms of a zinc deficiency include acne-like rash, diarrhoea, lack of appetite, delayed wound healing, impaired immunity, diminished sense of taste and smell, and hair loss.
What is the main indication of a zinc deficiency?A zinc deficiency can cause skin changes that initially resemble eczema. Around the mouth, diaper area, and hands are common places to find cracks and a glazed appearance on the skin. Moisturizers, steroid creams, and lotions don't help the rash get better.
Dermatological signs of zinc deficiency typically include red, eczematous, sharply demarcated, dry, scaly patches on the face (periorificial) and anogenital area that can develop into vesicular, pustular, or desquamative lesions. Psoriasiform plaques are frequently found on the extensor surfaces of the arms and legs.
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Because skeletal muscle contractions demand large quantities of ATP, skeletal muscles have: A) a rich nerve supply to ensure a rapid succession of action potentials. B) massive creatine phosphate reserves for long periods of sustained contractions. C) extra calcium reserves which can serve as fuel molecules during ATP synthesis. D) adipose tissue between fibers to supply nutrients for ATP production. E) many mitochondria and a rich blood supply
Skeletal muscle has E. mitochondria and a rich blood supply.
Muscles are an active means of movement. Muscle contraction begins when the central nervous system, namely the muscles and spinal cord, issues impulses or action potentials to motor neurons. Acetylcholine releases calcium ions and forms actin and myosin cross bridges.
Myosin will bind to actin and pull it in which requires a lot of ATP. This binding releases ADP as well as phosphate and then the myosin head binds to new ATP, causing it to release actin. Withdrawal of actin by myosin is what makes muscle fibers shorten and contract according to the impulses given. Because of this, skeletal muscles have many mitochondria and a rich blood supply because muscle contractions require a lot of energy.
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What are the 5 main functions of the circulatory system?.
What is an example of a biological hazard food safety?.
Biohazard, which can endanger the health of living things, is another name for biological hazard. Chlorine is a cleaning ingredient found in many solvents and is not toxic to use like foods, drinking water.
The gastroenteritis-causing virus hazard known as norovirus is contagious. It is brought on by tainted food. The connection between Nov and tainted food is yet unclear, though. A host is required for virus propagation. However, chlorine inhalation hazard directly might cause eye irritation and lung issues.
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in the search for genetic contributions to schizophrenic disorders, attention is being paid to a form of the comt gene (called the val allele), which seems to
In schizophrenic disorders, attention is being paid to a form of the COMT gene (called the Val allele), which seems to affect the transmission of dopamine in the prefrontal cortex.
Schizophrenia is a persistent, severe mental illness that has an impact on a person's relationships with others as well as their thinking, acting, and emotional expression. Despite not being as prevalent as other severe mental illnesses, schizophrenia can be the most persistent and incapacitating.
Schizophrenia patients frequently struggle to function well in relationships, the workplace, and academic settings. They can appear to have lost their sense of reality, feel afraid and withdraw. This chronic illness cannot be cured, but it can be managed with the right care.
Hence, schizophrenic disorders affect the transmission of dopamine in the prefrontal cortex.
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How do you write an evolution essay?.
Evolution is a complex process by which there occur characteristic changes in the living organisms over many generations. These changes, also called as traits get passed on from one generation to the next. It is commonly defined as the change in the genetic makeup of the population of species.
To write an evolution essay, it is important to clearly differentiate between the similarities and differences between two organisms. Moreover, you need to mention about how these traits in the form of genes are transferred from one generation to another. Following this, it is important to write on the have evolution is categorized into different types such as convergent and divergent evolution.
Finally, giving examples of each and clearly highlighting the timeline along with features completes the essay.
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why is it that abnormal forms of prion self-proteins can accumulate over time in the central nervous system, leading to disease
Abnormal forms of prion self-proteins can accumulate over time in the central nervous system, causing abnormal forms to be resistant to the degradation of normal cellular proteases.
Prion diseases, also known as transmissible spongiform encephalopathies (TSEs), are a group of brain diseases that can affect humans and animals. This disease occurs due to the presence of infectious agents called prions.
The term "prion" itself refers to a type of abnormal protein that triggers healthy proteins in the brain to fold abnormally. The presence of these abnormal prion proteins can damage nerve cells in the brain, causing a decrease in brain function which involves impaired memory, behavior, and body movements.
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a variety of factors can influence osteoporosis risk. from each of the following pairs, click to select the factor that increases osteoporosis risk.
Several factors that can affect the risk of osteoporosis are gender, hormones, family history, body size and vitamin D deficiency.
Factors that can affect the risk of osteoporosisGenderWomen are four times more likely to suffer from osteoporosis than men, especially women of Caucasian or Asian race. This is because the bone mass of women is lower than that of men and Asian women's body posture is relatively smaller so they have lower bone mass than other races.
Hormones- In women, the low estrogen hormone that usually occurs due to menopause, ovarian removal surgery, and chemotherapy can make it difficult for bones to form new tissues and structures.
- In men, low testosterone levels are a risk factor for bone loss.
Family historyIf there are family members who have a history of osteoporosis, then someone will be at greater risk of experiencing this condition.
Body sizeWomen and men with small and thin body shapes are at higher risk of experiencing bone loss than women and men who have large body shapes.
Lack of vitamin DVitamin D functions to help the body absorb sufficient calcium for bone health and strength, making it susceptible to osteoporosis.
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which of the following is regarded as the best approach to prevent mistakes in a process because of its ability to avoid rework and wastage of time and resources?
The greatest way to prevent faults in a process is to spot probable flaws and errors and halt a process before they happen.
Which of the following statements about the poka-yoke method for error-proofing procedures is accurate?
Employee participation in initiatives for ongoing improvement is beneficial.
The employment of any automatic mechanism or procedure that either prevents an error from occurring or makes the fault immediately visible once it has happened is known as mistake proofing, and its Japanese counterpart is poka-yoke (pronounced PO-ka yo-KAY). It is a typical tool for process analysis.
Any device in Lean manufacturing that aids in error prevention is known as a poka-yoke. Its goal is to eliminate product flaws through the prevention, correction, or awareness of human errors as they happen.
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combines synthetic chemical pesticides with biocontrol techniques
Managing crop competitors and pests has been challenging to agronomists for centuries. One approach, integrated pest management, ....
For centuries, agronomists have struggled to control pests and crop competitors. One strategy, integrated pest management, combines pesticides made of synthetic chemicals and biological controls.
Which approach to crop pest management combines biocontrol methods with synthetic chemical pesticides?IPM explanation
IPM (Integrated Pest Management) is an ecosystem-based approach that focuses on the long-term prevention of pests or the damage they cause using a variety of techniques, including biological control, habitat modification, alteration of cultural practices, and the use of resistant varieties.
Cultural techniques like habitat diversification are used in integrated pest management. The definition of habitat diversification varies depending on the crop that is inhabited, and includes practises like crop rotation and intercropping.
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according to the diagnostic and statistical manual of mental disorders (dsm-v), which of these is characteristic of bulimia?
The following diagnostic criteria for bulimia nervosa are listed in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5):.
What does the DSM-5 define as bulimia?The DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, 5th ed.) diagnosis of bulimia nervosa is given to people who frequently overeat and then take improper steps to avoid weight gain, such as purging, fasting, or overexerting themselves.
What traits define bulimia nervosa?An eating disorder is bulimia. It is characterized by uncontrollable bingeing episodes of overeating. The next step is purging using techniques like vomiting or abusing laxatives. Binge eating is when you consume significantly more food than you normally would in a brief period of time, typically less than two hours.
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the other factor that typically occurs with this spatial pattern is that the organisms, often of the same species, are antagonistic to one another and defend their access to the resources by physical or chemical means. what is this population dispersion type?
The spatial relationship between population members within a habitat is depicted by dispersion or distribution patterns. A population's individuals can be distributed in one of three basic ways: uniformly, randomly, or clumped.
What is the name of the distribution of organisms in space?The way a biological taxon is spatially arranged is known as species distribution, also known as species dispersion. A taxon's range, which is frequently shown on a map as shaded areas, denotes the geographic boundaries of that taxon's distribution.
The population density in a particular area can be used to gauge spatial distribution. Uniform, clumped, and random are the three primary types of population spatial distribution. The three different types of spatial distribution are: clumped, uniform, and random.
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What are the 3 principles of storage?.
The 3 principles of storage are
Produce prices are stabilized by storage because it increases availability.Protects both the manufacturer and the consumer against price extremes.It becomes feasible to distribute things more evenly.Produce can be found in a location even when it's not in season.Fresh fruits and vegetables may lose flavour and nutritional value if they are not stored properly. Fresh fruits and vegetables should be stored properly to preserve their quality, avoid spoilage and illness, and get the most bang for your buck when you make a purchase.
Hence, storage help in availability, price and non season availability of food.
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hat is the biological significance of the light-independent reactions of photosynthesis? view available hint(s)for part f what is the biological significance of the light-independent reactions of photosynthesis? they generate atp and nadph. they convert carbon dioxide to sugar. they make oxygen. they convert atp to sugar.
They convert carbon dioxide [tex]CO_{2}[/tex] to sugars. The assembly of the glucose molecule is the ultimate objective of Calvin cycle or light-independent processes.
The carbon dioxide [tex]CO_{2}[/tex] that the plant absorbs from the air is necessary for this step of photosynthesis. In essence, the plant need the carbon in the carbon dioxide [tex]CO_{2}[/tex] to make the components of glucose. In light-independent processes, carbon dioxide [tex]CO_{2}[/tex] is utilized to drive the assembly of sugar molecules using chemical energy created by light-dependent reactions; nonetheless, these reactions are still light-dependent since the products of the light-dependent reactions required to drive them are transient. To temporarily store energy, the light-dependent processes generate ATP and either NADPH or NADH. These energy carriers are utilized to power the energetically unfavorable process of "fixing" inorganic carbon dioxide [tex]CO_{2}[/tex] in an organic form, sugars, through light-independent processes.
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A man had a pointed line, a a heterozygou cae. Hi wife had no pointed hairline. What i their probability of having children with pointed hairline?
Any child born to parents who are heterozygous (W w) has a 75% probability of developing widow's peak .
All conceivable genotypic pairings in the parents can be found using a Punnett square. There are a few key differences in a pedigree that shows a characteristic that is dominantly inherited.
If a characteristic is dominant, just one allele is needed to manifest the trait. A recessive allele, if present, will be hidden by a dominant allele. Using a capital letter, a dominant allele is identified (A versus a). There are three possible combinations because each parent contributes one allele: AA, Aa, and aa. The dominant characteristic is phenotypically expressed in offspring with genotypes AA or Aa, whereas the recessive trait is displayed in aa individuals.
Example:
All of the offspring of parents who are homozygous dominant (WW) and homozygous recessive (WW) will be heterozygous (WW) and have a widow's peak. Any child born to parents who are heterozygous (W w) has a 75% probability of developing widow's peak (see figure). All conceivable genotypic pairings in the parents can be found using a Punnett square.
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Which process must first take place in order for the proteins in foods to be used by body cells.
Digestion is the process that must first take place in order for the proteins in foods to be used by body cells.
Proteins, vitamins, and carbohydrates from the food you consumed are extracted during digestion and sent straight to your bloodstream where they may be utilized by your cells.
Large, insoluble food molecules must be broken down during digestion into smaller, water-soluble food molecules in order to be absorbed into the watery blood plasma. In some creatures, the small intestine allows these tiny molecules to reach the bloodstream.
The digestive system transforms food into nutrients including proteins, lipids, and carbohydrates. Once they are taken into the bloodstream, the body can use them for energy, development, and repair.
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in moving joints, the ends of the bones are covered with: a.muscular fascia. b.articular cartilage. c.synovial tendons. d.gliding cartilage.
Articular cartilage, which is formed of hyaline cartilage, covers the articulating surface of every bone.
One component is made up of the synovial membrane and articular cartilage. Fibrocartilage is present between the articulating bones in a few synovial joints throughout the body.
The hyaline cartilage that covers the ends of your bones is referred to as articular cartilage. Hyaline cartilage facilitates the easy transit of your bones through your joints since it is slick and slippery. It is flexible and robust enough to prevent your joints from losing their structural integrity.
Hyaline cartilage surrounds the bones of free-moving joints. The medical word for this is articular cartilage. Another instance of this is the tissue that lines the walls of the respiratory tract.cartilage with hyalines. This group includes the rib tips, nose, tracheal rings, and bronchi.
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What are the activities and goals of political science?.
Political science is the academic study of politics. Power structures, political ideologies, political behaviour, and the laws and constitutions that support them are all studied by this field of social science.
Political theory's main objective is to explain what is going on or to grasp the circumstances in order to generate ideas and urgent issues that will assist in our understanding of them.
Political science majors should be able to: Recognize and use the methods used by political scientists to address political issues. Use critical thought and evidence to analyse and assess conflicting ideas and interpretations.
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Why is it accurate to claim that the legume-bacteria mutualism described in the text is contingent?.
Rhizobia, a type of nitrogen-fixing soil bacterium, and legumes can coexist together. This symbiosis results in the formation of nodules on the plant root, within which the bacteria can convert atmospheric nitrogen into ammonia that the plant can use.
Rhizobia, a type of soil bacterium that fixes nitrogen, can coexist symbiotically with legumes. The result of symbiosis is the development of nodules on the plant roots, where the bacteria can transform atmospheric nitrogen into ammonia that the plant can use.
Rhizobia, a group of soil bacteria, collaborate symbiotically with legume roots to create specialized nodules where nitrogen fixation occurs.
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If you stopped gel electrophoresis halfway during the running time, what would you expect?.
If you stopped gel electrophoresis halfway through the running time, not all of the pieces in the gel have yet dissociated from one another.
The fragment size is the basis for gel electrophoresis. The distance a piece travels depends on its size; the smaller it is, the farther it travels, and the longer it travels. Therefore, if gel electrophoresis is interrupted midway, the fragments won't be adequately separated.
A laboratory technique called gel electrophoresis is used to divide combinations of DNA, RNA, or proteins based on their molecular sizes. In gel electrophoresis, the molecules that need to be separated are forced through a gel that has tiny pores by an electrical field.
Gel electrophoresis is a method for classifying biological components according to size. These molecules are separated by putting them in a gel with tiny pores and applying an electric field to the gel as a whole.
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what is the physiological reason males have an unlimited number of sperm but women have a limited number of eggs?
Answer:I understand that the question you are looking for is:
what is the physiological reason males have an unlimited number of sperm but women have a limited number of eggs?
The male have maximum have an unlimited number of sperm than woman because Sperms are produced in large numbers to ensure the fertilisation of the ovum.
Explanation:
Why does fertilisation require millions of sperm cells but only one egg?
There must be a considerable amount of sperm in the semen for the ovum to be successfuly fertilised. The human female reproductive system requires sperm to swim through it in order to reach the ovum in the fallopian tube, hence the sperm must include a lot of sperm.
Why do you require countless sperm?
The likelihood that you will fertilise the egg instead of your neighbour increases as you move more of your sperm toward the egg.
For males of any species, this form of competition is necessary for evolutionary reasons.
It is impossible to pass on your genes if another person's sperm fertilises an egg.
Ejaculate typically contains 200 to 600 million sperm, which enhances the likelihood that some will finally reach a developed egg and that just one will be able to enter and fertilise it.
What is the most sperm that a man can hold?
If a man hasn't ejaculated in 4-5 days, there are roughly 300 to 800 million sperm cells preserved during spermatogenesis.
And fresh ones are continually being created.
Sperm cells expire quickly, therefore if a guy doesn't ejaculate for two weeks, the expired cells will begin to leak out and be eliminated in the urine or he may experience nighttime emissions to eliminate the expired cells.
A man's body may therefore house a total of 5–6 ml and 800.000.000 cells.
After two weeks of abstinence, the expired material is eliminated, and semen proteins and fresh cells are continually created.
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Inside fallopian tube sperms have to swim the distance about two hours, during which most get die. So, more sperms definitely means better chance of fertilization.
The option A is correct
What is Fertilization?
A pregnancy starts with fertilization, when a woman's egg joins with a man's sperm. Fertilization usually takes place in a fallopian tube that links an ovary to the uterus. If the fertilized egg successfully travels down the fallopian tube and implants in the uterus, an embryo starts growing.
What happens throughout the primary fertilization process?
There are four distinct mechanisms that make up the phases of fertilization:
Sperm preparation comes first, followed by sperm-egg recognition and binding, sperm-egg fusion, fusing of the pronuclei of the sperm and the egg, and activation of the zygote.
What three phases of fertilization are there?
Sperm capacitation and acrosome reaction, sperm-egg binding and fusion, and cortical reaction and oocyte activation are the three primary phases of fertilization. In the female genital canal, sperm cells undergo sperm capacitation, which gets them ready for the acrosome response.
What are the 2 types of fertilization?
Animals also produce gametes for fusion. But the fusion of gametes may take place inside or outside the body. Based on this, fertilization is of two types – internal and external fertilization.
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what is the physiological reason males have an unlimited number of sperm but women have a limited number of eggs?
a. so that some have the chance of surviving and reaching the egg.
b. enough sperm cells will be present to transport the egg from where it is made to where it develops into a fetus.
c. so multiple sperm can fertilize the egg in the female.
What is the pairing sequence of nitrogenous bases in DNA?.
Answer: A:T. C:G
Explanation:
blood phosphorus levels are primarily regulated by multiple choice the intestine. thyroid hormone. the liver. the kidneys.
The kidneys, bones, and intestines regulate blood phosphorus level .
Phosphorus homeostasis is maintained by the kidneys, bones, and intestines, and it calls for maintaining urine losses at levels equal to net phosphorus absorption and making sure that the quantity of phosphorus deposited and removed from bone is equal.
All tissues and cells require phosphorus for their growth, upkeep, and repair, as well as for the creation of DNA and RNA, the genetic building blocks. Additionally, other vitamins and minerals like vitamin D, iodine, magnesium, and zinc need phosphorus to be balanced and used.
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the pedigrees below show the inheritance of three separate, rare autosomal conditions in different families. for each pedigree, decide if the condition is better explained as recessive or dominant. drag the correct label to the appropriate location. labels can be used once, more than once, or not at all.
The decision on if the condition is better explained as recessive or dominant is given below"
Pedigree 1- autosomal dominant reaction.Pedigree 2- autosomal dominant reaction.Pedigree 3- autosomal recessive.How can a pedigree's dominant or recessive traits be determined?One of the parents must possess the trait for it to be dominant. No generation will be spared from dominant features. If a trait is recessive, neither parent needs to have it in order for it to be present because they can both be heterozygous.
Therefore, One copy of a mutant (changed) gene inherited from one parent can cause a genetic disease in autosomal dominant inheritance. A child has a 50% chance of receiving the mutant gene from a parent who carries it.
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