50% is the probability of having a child with attached earlobes when an individual with attached earlobes mates with an individual heterozygous for free earlobes.
What ias free earlobes?Earlobes can be categorized as "attached" or "free." Free earlobes droop downward below the point at which attached earlobes are joined to the head.In the population under study, arched earlobes were observed in both sexes in 67.8% of males and females for the left ear and in 74.4% and 72.4% of males and females for the right ear.Earlobes that hang freely is an autosomal dominant feature. This graph illustrates the feature and how it was passed down over three generations in a family. People with the recessive variant of the trait are shown by shading.
To learn more about earlobes refer to:
https://brainly.com/question/12423967
#SPJ4
4. what experimental technique was utilized to show that dna replicated by a semiconservative process?
An experimental demonstration of semiconservative DNA replication was provided by the Meselson and Stahl Experiment.
What is Meselson and Stahl Experiment?An experimental demonstration of semiconservative DNA replication was provided by the Meselson and Stahl Experiment. In order to explore DNA replication, Matthew Meselson and Franklin Stahl carried out an experiment on the fast-diverging E. coli in 1958.In 1958, Matthew Meselson and Franklin Stahl performed an experiment on the rapidly diverging E. coli to investigate DNA replication. CsCl density gradient centrifugation was the method employed by Meselson and Stahl to explore semiconservative replication of DNA.Max Delbrück informed PNAS in May 1958 that the semiconservative method of DNA replication had been discovered by the well-known density labeling studies of Matthew Meselson and Franklin W. Stahl.To learn more about Meselson and Stahl Experiment refer to:
https://brainly.com/question/12452535
#SPJ4
Iconic maine species such as moose, canada lynx, loons, boreal chickadees, eastern brook trout, saltmarsh sparrows and atlantic puffins are under stress from climate change. A mutation in the boreal chickadees increases the ability of the bird to catch and eat certain insects. Which factor might determine whether the frequency of the new allele will increase?.
The frequency of the new allele may be determined by whether the mutation offers the chickadees better access to food sources than those without it.
Mutation:
A mutation is a permanent change in the genetic material (the genome) of a cell of a live creature or of a virus that may be passed on to the cell's or virus's progeny. (Organic genomes are all made of DNA, although viral genomes can be made of either DNA or RNA; see heredity. The Physical Basis of Heredity.) A mutation in the DNA of a body cell of a multicellular organism (somatic mutation) can be passed on to descendant cells via DNA replication, resulting in a sector or patch of cells with abnormal function, such as cancer.
Mutations occur as a result of errors during the regular chemical transactions of DNA, most commonly during replication, or as a result of exposure to high-energy electromagnetic radiation (e.g., ultraviolet light or X-rays), particle radiation, or highly reactive substances in the environment. Mutations are believed to be largely harmful since they are random alterations, although some may be advantageous in specific settings. In general, the mutation is the primary source of genetic variation, which serves as the raw material for natural selection evolution.
To know more about mutation visit the link:
https://brainly.com/question/17031191
#SPJ4
in the carbohydrate-insulin model, what is the primary cause of obesity?
The ability to produce language is a function of _________, whereas the ability to understand language is a function of _________.
The ability to produce language is a function of Broca's area, whereas the ability to understand language is a function of Wernicke's area.
What distinguishes Wernicke's territory from Broca's area?In essence, Wernicke's area strives to ensure that the language makes sense, but Broca's area attempts to guarantee that the language is produced in a fluent manner. The Wernicke-Geschwind model, which was later suggested by neurologist Norman Geschwind, built on this understanding of language.
Broca's area is situated in the neocortex's posterior-inferior frontal convexity, whereas Wernicke's area is restricted to the general region where the parietal, occipital, and temporal lobes converge. For the majority of people, the left hemisphere is where these areas function predominantly in terms of language.
To know more about Broca's area visit:
https://brainly.com/question/29412751
#SPJ4
Select all that are effectors of angiotensin ii.
a. Hypothalamus
b. Kidneys
c. Blood vessels
Effectors of angiotensin ii. Blood vessels.
Angiotensin is a hormone that helps adjust your blood stress via constricting (narrowing) blood vessels and triggering water and salt (sodium) intake. Hormones are chemical substances that coordinate features in your body by using carrying messages through your blood on your organs, muscle mass and different tissues.
The liver creates and releases a protein known as angiotensinogen. this is then damaged up via renin, an enzyme produced inside the kidney, to form angiotensin I. This shape of the hormone isn't known to have any particular biological feature in itself however, is an essential precursor for angiotensin II.
Angiotensin II (Ang II) increases blood pressure (BP) by some of actions, the maximum critical ones being vasoconstriction, sympathetic anxious stimulation, extended aldosterone biosynthesis and renal movements.
Learn more about Angiotensin here:
https://brainly.com/question/1204801
#SPJ4
Please help me
It’s due
The effect of shortage of the following factors on the rate of photosynthesis is given below:
CARBON DIOXIDE (CO₂) - Slows down photosynthesisOXYGEN (O₂) - No changeGLUCOSE (C₆H₁₂O₆) - No changeSUNLIGHT - Slows down photosynthesisWATER (H₂O) - Slows down photosynthesisWhat is photosynthesis?Photosynthesis is the process by which plants produce food from carbon dioxide and water using the energy of sunlight.
The rate of photosynthesis is affected by the following:
amount of sunlight - the greater the amount of sunlight, the faster the rate of photosynthesisamount of carbon dioxide - the greater the amount of carbon dioxide, the faster the rate of photosynthesisamount of water vapor in the atmosphere - the greater the amount of water vapor, the faster the rate of photosynthesisLearn more about the rate of photosynthesis at: https://brainly.com/question/2114560
#SPJ1
Earth has several nutrient cycles that share similarities, but also differ. Connect each feature of a cycle that relates to the phosphorus, nitrogen, or carbon cycle. You may use cycles, and the features of the cycles, more than one time each.
Excess present in fertilizers can upset the balance of the cycle---- Nitrogen and phosphorus cycles.
Mostly in a form unusable by organisms--- nitrogen
Present in soil and organisms ---- carbon and nitrogen
Involved in respiration---- carbon
Fixed by bacteria from the atmosphere----- nitrogen
Often deposited on the ocean floor--- phosphorus
Excess present in the atmosphere can upset the balance of the cycle--- carbon.
How are the phosphorus, nitrogen, and carbon cycles interconnected?Every living organism is made up of atoms of carbon, nitrogen, and phosphorus. Nitrogen and carbon are present in amino acids which are responsible for making proteins. Phosphates form DNA and ATP molecules. The availability of these elements has great importance to the existence of living things.
Nitrogen Cycle is a process in which nitrogen is converted into other forms that are passing from the atmosphere to the soil, then to organisms, and back into the atmosphere. It has several processes such as nitrogen fixation, nitrification, and denitrification, etc.
The carbon Cycle is a process of circulation of carbon through biotic and abiotic parts of the ecosystem. It is a type of gaseous cycle. Phosphorus Cycle is a process of circulation of phosphorus through biotic and abiotic parts of the ecosystem. It is considered a sedimentary cycle.
So we can conclude that the phosphorus, nitrogen, and carbon cycles are interconnected to each other because they are important for the survival of the organism.
Learn more about cycle here: https://brainly.com/question/7196669
#SPJ1
In a salt solution, what happens to sodium and chloride ions?
A. They stay near the original salt crystal.
B. They become evenly dispersed in the water.
C. They bond with each other, forming a new salt crystal.
D. They bond with each other to form a solvent.
Ions of sodium and chloride are present in a salt solution. In the water, they are uniformly distributed. The Hydrogen atoms combine with the Chloride atoms in a salt solution. With the sodium ions, the oxygen atoms also combine.
Due to electrical charges and the fact that both water and salt molecules are polar, with positive and negative charges on opposite sides of the molecule, salt dissolves in water at the molecular level. The chloride ion is negatively charged, while the sodium ion is positively charged, which is why the bonds in salt compounds are referred to as ionic. A water molecule is also ionic in nature, but the link is covalent because two hydrogen atoms place their positive charges on opposite sides of the oxygen atom, which has a negative charge. Water's covalent bonds are more powerful than salt molecules' ionic bonds, so when salt is combined with water, the salt dissolves.
Thus, we can conclude that a salt solution contains sodium and chloride ions. They are evenly spread out throughout the water.
LEARN MORE ABOUT SALT SOLUTIONS HERE:
https://brainly.com/question/11136795
#SPJ1
Your question is incomplete. Please find the complete question below.
Question: In a salt solution, what happens to sodium and chloride ions?
A. They stay near the original salt crystal
B. They become evenly dispersed in the water
C. They bond w each other, forming a new salt crystal
D. They bond w each other to form a solvent
Explain your understanding of a calorie, how energy is stored in the body and what factors make our individual energy requirements so unique. A portion of our consumed energy goes towards physical activity each day. Share some of the daily activities you perform that you think would require this energy.
Calorie, a unit of energy, is the amount of energy expelled when the body breaks down food, it is stored in the body as glycogen or fat and gender, body weight, and age make individual energy requirements unique.
Some daily activities that require physical energy are Riding a bicycle, walking fast, hiking, skating. dancing, workouts.
How are calories burned?Calories are energy people get from foods and drink they consume. Apart from basic metabolism, the way the body uses food determines how much calories the body burns.
The body stores this energy as glycogen or fat. Body weight, age and gender are determinants of the body's use of energy. Energy requiring activities include workouts, dancing, hiking etc., to burn calories.
Learn more on calories here: https://brainly.com/question/11460467
#SPJ1
The diagram represents a dihybrid cross between two pea plants that are heterozygous for both seed color and seed shape.
What is the phenotypic ratio of the offspring?
- 1:1:1:1:2:2:2:2:4
-1:3:3:9
-1:4
-4:12
Answer:4:12
Explanation:
This question already provides you with the punnet square, genotypes resulting from the cross, and phenotypes resulting from the cross. Simply count the number of green phenotypes (the green circles), and compare them to the number of yellow phenotypes (yellow circles), and you get 4 green for every 12 yellow.
Define oligopotent, multipotent, totipotent, and pluripotent cells are
Which of the following is a basic type of vaccine?
Select all that apply.
a. nucleic acid vaccines
b. subunit vaccine
c. live, attenuated vaccine
d. antitoxin vaccines
The basic type of vaccines are:
nucleic acid vaccines
subunit vaccine
live, attenuated vaccine
An easy, secure, and reliable method of preventing hazardous infections before you are exposed to them is vaccination. It boosts your immune system and builds up your body's natural defenses against particular illnesses.
Your immune system is trained by vaccinations to produce antibodies, exactly as it does when it is exposed to a disease. However, because vaccinations only include dead or weakened versions of bacteria or viruses, they do not really cause the disease or increase your chance of developing its symptoms.
In order to create immunity, vaccines act in conjunction with your body's natural defenses. Your immune system reacts when you receive a vaccination.
To know more about vaccines, visit:
https://brainly.com/question/6683555
#SPJ4
PLSSS HELP IF YOU TURLY KNOW THISS
True or false: Cells in dermal tissue produce the cuticle.
Answer:
yessss, it isss trueee!
The cell membrane pulls away from the cell wall as the cell loses water and shrivels during.
Answer: plasmolysis
Explanation:n a hypertonic solution, a cell with a cell wall will lose water too
What is the purpose of microtubules during Mitosis?
Which statement best explains the function of the vesicles?
Select one:
O Delivering packaged materials to the Golgi apparatus for protein
synthesis
O Transporting packaged molecules from the Golgi apparatus to
be released out of the cell
O Exchanging genetic information between the Golgi apparatuses
of separate cells
Extracting portions of the Golgi apparatus to be regenerated for
growth within the cell
The statement that best explains the function of vesicles is: (b) Transporting packaged molecules from the Golgi apparatus to be released out of the cell.
Vesicles are the membrane enclosed spherical structures that are involved in the process of transportation. The vesicles transport packaged proteins and lipids from the Golgi body to lysosomes, ER or cell membrane. These vesicles are coated with certain protein that direct the pathway for the transport.
Golgi apparatus is a single membranous cell organelle. It is involved in the packaging, sorting and transport of proteins and lipids. The structure of Golgi is composed of cisternae and vacuoles.
To know more about Golgi apparatus, here
brainly.com/question/12233980
#SPJ1
What part of the circulatory system is responsible both for disposing of cellular waste and providing cellular fuel?.
The lungs are responsible both for disposing of cellular waste and providing cellular fuel.
To obtain oxygen, the circulatory system (cardiovascular system) pumps blood from the heart to the lungs. The heart then sends oxygenated blood to the rest of the body via arteries. The veins return oxygen-depleted blood to the heart to restart the circulation process. Blood vessels in the circulatory system transport blood away from and towards the heart. Arteries transport blood away from the heart, while veins transport blood back to the heart. The circulatory system transports oxygen, nutrients, and hormones to cells while also removing waste products such as carbon dioxide.
The lungs are an important part of the circulatory system because they provide oxygen for cellular respiration and remove waste products.
To learn more about circulatory system, here
https://brainly.com/question/10103458
#SPJ4
the gram stain of the csf from a patient suffering from headaches, stiff neck, and petechial rash reveals the presence of gram-negative diplococci. a follow-up capsule stain was also positive for the presence of capsules. with which organism is the patient likely infected?
Neisseria meningitis is the patient likely infected with.
Meningococcal disease is caused by the bacterium Neisseria meningitidis. One in every ten people has these bacteria in the back of their nose and throat without knowing it. This is referred to as being a 'carrier.' Meningococcal disease is caused when bacteria invade the body and cause certain illnesses.
Neisseria meningitidis, also known as meningococcus, is a Gram-negative bacterium that can cause meningitis and other types of meningococcal disease, including meningococcemia, a potentially fatal sepsis.
Cerebrospinal fluid is a clear, colorless bodily fluid found within the tissue that surrounds all vertebrates' brain and spinal cord. CSF is produced in the choroid plexus of the ventricles of the brain by specialized ependymal cells and absorbed in the arachnoid granulations.
To learn more about Neisseria meningitis, here
https://brainly.com/question/13086027
#SPJ4
what are the molecular and energy products generated by aerobic respiration? a. molecular: 38 atp and heat, energy: 6co2 and 6h2o b. molecular: 6co2 and 6h2o, energy: 38 atp and heat c. molecular: 2 atp, energy: 6o2 and 6h2o d. molecular: 6h2o, energy: heat
The molecular and energy products generated by aerobic respiration would be [tex]6CO_{2}[/tex], 6[tex]H_{2}O[/tex], an energy of 38 ATP and heat.
So, the correct option is B.
Adenosine triphosphate, a chemical compound that provides energy, is produced as a result of a series of enzyme-controlled chemical reactions in which oxygen reacts with glucose to produce carbon dioxide and water. When oxygen and glucose are combined during aerobic cellular respiration, ATP is created that the cell can use. There are byproducts of carbon dioxide and water. Cellular respiration is an aerobic process in which glucose and oxygen combine to create ATP.
In the second and third stages of the aerobic energy system, the breakdown of glucose that was begun by aerobic glycolysis is continued, producing the byproducts carbon dioxide and water, as well as the synthesis of additional ATP.
Learn to know more about Aerobic respiration on
https://brainly.com/question/25424208
#SPJ4
select all the anticodons that could bind to the codon ucu for serine. choose all that apply. check all that apply 5'-aga-3' 5'-aga-3' 5'-gga-3' 5'-gga-3' 5'-agg-3' 5'-agg-3' 5'-iga-3' 5'-iga-3' 5'-agi-3' 5'-agi-3' 5'-agu-3' 5'-agu-3' 5'-uga-3' 5'-uga-3'
All the anticodons that could bind to the codon ucu for serine are 5'-aga-3' 5'-aga-3' 5'-gga-3' 5'-gga-3' 5'-agg-3' 5'-agg-3' 5' as Wobble Hypothesis given by Francis Harry Compton Crick states that 3rd base of mRNA codon can base pair with 1st base of a tRNA anticodon undergoing non-Watson-Crick.
What is Wobble Hypothesis ?
According to the Wobble Hypothesis the first 2 bases of the mRNA codon form Hydrogen bonds with the corresponding bases on tRNA anticodon in Watson-Crick manner.
Through this, they only form the base pairs with the complimentary bases. However, formation of the Hydrogen bonds between 3rd base on codon and 1st base on anticodon can occur potentially in non-Watson-Crick manner.
Therefore, All the anticodons that could bind to the codon ucu for serine are 5'-aga-3' 5'-aga-3' 5'-gga-3' 5'-gga-3' 5'-agg-3' 5'-agg-3' 5' as Wobble Hypothesis given by Francis Harry Compton Crick states that 3rd base of mRNA codon can base pair with 1st base of a tRNA anticodon undergoing non-Watson-Crick.
Learn more about Watson-Crick on:
https://brainly.com/question/14547744
#SPJ1
In the previous question a heterozygous three toed dragon mated with a heterozygous three toes male. What is the probability that their offspring will have three toes?
Question 14 options:
25%
50%
75%
A heterozygous male three-toed dragon and a heterozygous female three-toed dragon mated. Any offspring of parents who are heterozygous have a 75% probability of being born with three toes.
A dominant allele has a 75% chance of being inherited by the offspring if both parents are heterozygous and afflicted. To find all potential genotypic pairings in the parents, utilize a Punnett square. There are a few crucial differences in a pedigree that shows a dominantly inherited characteristic.
A mating experiment between two organisms equally hybrid for two traits is referred to as a dihybrid cross. A heterozygous organism is one that possesses two distinct alleles at a certain genetic location, making it a hybrid. The traditional Mendelian ratio for a dihybrid cross in which the alleles of two different genes assort independently into gametes is 9:3:3:1, and it can be used to predict the phenotypic ratio.
As a result, we may state that there is a 75% chance that any offspring of heterozygous parents (WW) will have three toes.
LEARN MORE ABOUT DIHYBRID CROSS HERE:
https://brainly.com/question/1185199
#SPJ1
one kind of plasmid in bacteria is called an r plasmid. what kinds of genes are typically present on such plasmids?
One type of bacterial plasmid is called an r-plasmid. Types of genes typically present in such plasmids Antibiotic resistance genes
Antibiotic resistance genes are often carried in plasmids or transposons and are transferred from cell to cell by conjugation, transformation, or transduction. This gene exchange allows rapid spread of resistance within bacterial populations and between different bacterial species. Some genetically modified plants contain genes that make the plant resistant to certain antibiotics. Scientists often then and can say that add these resistance genes during genetic modification. This allows GM plants and cells to be distinguished from non-GM plants and cells.
To know more about Antibiotic resistance genes visit:
https://brainly.com/question/29412753
#SPJ4
What alleles show their effect even if the individual only has one copy of the allele?.
Even if an individual only carries one copy of an allele, dominant alleles still have an effect.
Even if an individual only possesses one copy of an allele, dominant alleles still have an impact. One copy of the "brown eye" allele, for instance, is all that is required to have brown eyes because the "brown eye" allele is dominant (although, with two copies you will still have brown eyes).
One copy of an allele, which might come from just one parent, is called a dominant allele and results in a dominant phenotype in people. Having two copies of a recessive gene, one from each parent, is necessary for a recessive phenotype to develop. The dominant phenotype of a gene is seen in an individual who carries both one dominant and one recessive allele.
To learn more about dominant alleles, visit the link below:
brainly.com/question/2717245
#SPJ4
when a skeletal muscle fatigues, what happens to the contractile force over time?
When a skeletal muscle fatigues the contractile force declines due to previous contractile activity. Once the muscle has reached maximum tetanic tension, there is no longer an increase in force generated by the muscle. At this stage, the muscle becomes fatigued and contractile force starts to decrease over time.
Due to earlier contractile activity, skeletal muscle weariness results in a decrease in contractile force. The muscle no longer produces an increase in force after it has stretched to its maximal tetanic tension. At this point, the muscle starts to ache and its contractile force starts to gradually decline. A sign of this kind is muscular weariness, which over time reduces the muscles' capacity for work. Sleepiness is only one symptom of fatigue. It may be difficult to get out of bed in the morning due to fatigue. Additionally, it makes it difficult for someone to do everyday duties. Physical exhaustion and mental fatigue are the two main categories of fatigue.
To know more about skeletal muscle visit:
https://brainly.com/question/1560716
#SPJ4
Where are the collateral ganglia?
The collateral ganglia are found in abdominal aorta.
What are collateral ganglia?
The prevertebral ganglia, also known as collateral ganglia, are located anterior to the vertebral column and receive input from central sympathetic neurons as well as splanchnic nerves. They are regarded as a component of the enteric nervous system and are connected to the control of abdominal organs.
The sympathetic ganglia known as collateral ganglia, sometimes known as prevertebral ganglia, are located in between the sympathetic chain and the organ of supply. The preganglionic sympathetic fibers that supply the viscera in the abdomen and pelvis relay at this location.
To know more about collateral ganglia, click on the following link
https://brainly.com/question/9503128
#SPJ4
Equation for photosynthesis
Answer:
Photosynthesis is usually represented by the equation 6 CO2 + 6 H2O + light --> C6H12O6 + 6 O2. During this process, organisms such as plants go through the light-dependent and light-independent reactions to convert carbon dioxide and water into sugars and oxygen.
is tht wht u mean??
6 CO2 + 6 H2O + light --> C6H12O6 + 6 O2
infant rats deprived of their mothers' grooming touch produce less growth hormone and have a higher metabolic rate. more growth hormone and have a lower metabolic rate. less growth hormone and have a lower metabolic rate. more growth hormone and have a higher metabolic rate.
Infant rats deprived of their mothers' grooming touch produce less growth hormone and have a lower metabolic rate (Option C).
What is emotional behavior?The expression emotional behavior makes reference to the way in which affective issues alter the behavior in humans and also in animals, which in this case is associated with physiological changes such as low hormone production and metabolic rate.
Therefore, with this data, we can see that emotional behavior may produce changes in the physiological conditions not only in humans but also in animals as in this case in rats.
Learn more about emotional behavior here:
https://brainly.com/question/3838087
#SPJ1
all of the statements are true except: please choose the correct answer from the following choices, and then select the submit answer button. answer choices breathing is controlled by both voluntary and involuntary mechanisms. stronger or more frequent contraction of respiratory muscles helps to remove excess co2 from the blood. decreasing levels of oxygen in the blood are detected by chemoreceptors in the kidney. chemoreceptors involved in the homeostatic control of breathing are located in the brainstem and the carotid and aortic bodies. as an organism's activity level increases, the level of co2 in the blood will increase and stimulate faster or stronger breathing.
Decreasing levels of oxygen in the blood are detected by chemoreceptors in the kidney.
Chemoreceptors present in carotid bodies and aortic arch detect changes in arterial carbon dioxide, oxygen, and pH.
Carotid bodies are more important in intervene the response and provide the principal mechanism by which mammals identifies lowered levels of oxygen. Chemoreceptors detect the levels of carbon dioxide in the blood by keeping count of hydrogen ions in the blood. The decrease in CO2 leads to a decrease in ventilation. Hence, Less CO2 is retained in the lungs, after then CO2 increases and returns to normal.
To learn more about Chemoreceptors , here
brainly.com/question/14250862
#SPJ4
Which genotypes are possible from a cross of parents with the genotypes dd x dd?.
The genotypes possible from cross of parents with genotypes dd×dd will be dd and dd.
Genotype may be defined as the biological constituent of a living being or the genes which combine to form an organism. The genotype determines all the properties of the loving organism including its appearance, color and all other hereditary features as well. Any organism that is produced due to sexual interaction between parents will have both the genes coming from the parent. The cross formation of genotypes can be explained with the help of dihybrid cross. It says that since each parent has four different combinations in the gametes so there are 16 possibilities for the cross. In the question the cross is between dd×dd. So if we take one gene from each parent then the genotype will be dd and dd which is the required genotype.
Learn more about Genotypes at:
brainly.com/question/22117
#SPJ4