Assume that the short earlobes allele in humans is recessive to the long earlobes allele, and that individuals with the short earlobes genotype exhibit 60% penetrance. What is the probability that two heterozygous individuals will have a child together with the short earlobes phenotype?
Answers
The probability that two heterozygous individuals will have a child together with the short earlobes phenotype is 15%.
StepsThe likelihood of the genotype and phenotype of the progeny can be calculated using a Punnett square. Let's refer to the long earlobe gene as "L" and the short earlobe allele as "l."
The probability of each genotype is:
LL = 1/4
Ll = 1/2
ll = 1/4
Now we need to take into account the 60% penetrance of the short earlobes genotype. This means that even if an individual has the genotype for short earlobes (ll), they may not actually exhibit the phenotype.
So the probability of having the short earlobes phenotype is:
P(short earlobes phenotype) = P(ll) x 0.6
P(ll) = 1/4
Substituting in:
P(short earlobes phenotype) = (1/4) x 0.6
P(short earlobes phenotype) = 0.15 or 15%
The probability that two heterozygous individuals will have a child together with the short earlobes phenotype is 15%.
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Related Questions
Element
Element
-0)
18) Element Rand Element Q have the same number of valence electrons. These elements both have similar chemical behavior, but Element Rhas fewer energy levels than Element
Which statement best describes the positions of the two elements in the periodic table?
A) The two elements are in the same period, with Element R the first element in the period and
Element Q the last element.
B) The two elements are side by side in the same period, with Element Q to the left of Element R.
C) The two elements are in the same group, with Element R just above Element Q
D) The two elements are in the same group, with Element Q at the top of the group and Element Rat the bottom
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Answer:
the two elements are in the same period, with element R the first element in the period and element Q the last element
The reaction
H2(g) + I2(g) → 2HI(g)
proceeds via a two-step mechanism in which the rate law for the rate-determining step is
rate = k[H2][I]2.
Write the mechanism for the reaction.
Answers
Answer:
The cell organelles are - Endoplasmic Reticulum, Ribosomes, Golgi apparatus,Lysosomes, Mitochondria, Plastids, Vacuoles, Peroxisomes and Centrosome.
Q: How does the starting
position affect the speed of a
ball rolling down a ramp?
I NEED HELPP PLSSS ASAP!!!
Answers
The force of gravity points straight down, but a ball rolling down a ramp doesn't go straight down, it follows the ramp. Therefore, only the component of the gravitational force which points along the direction of the ball's motion can accelerate the ball. The other component pushes the ball into the ramp, and the ramp pushes back, so there is no acceleration of the ball into the ramp. If the ramp is horizontal, then the ball does not accelerate, as gravity pushes the ball into the ramp and not along the surface of the ramp. If the ramp is vertical, the ball just drops with acceleration due to gravity. These arguments are changed a bit by the fact that the ball is rolling and not sliding, but that only affects the magnitude of the acceleration but not the fact that it increases with ramp steepness.
Joaq...
Question 5
1 pts
Which of the following statements are true, if any, of chemical changes?
O new substances are formed from the original ones
the formation of a gas could be a byproduct
O atoms rearrange themselves in chemical changes
O sound and color changes may be produced
O all statements are true of chemical changes
Question 6
Answers
Answer:
all the statements are true of chemical changes
Look at the diagram of a fuel cell below. A fuel cell with 2 vertical objects labeled A and B connected by an electrical wire through a circle with a M in it. There is an area between the two vertical objects labeled A, and substances flowing to, along, and away from the vertical objects and to the left and right. Which statement describes how electrons move if oxidation occurs on the left side of the cell and reduction occurs on the right side? Electrons move from left to right through Electrons move from right to left through A. Electrons move from left to right through M. Electrons move from right to left through M.
Answers
The electrons move from left to right through the circle labeled "M" to reach the cathode, where reduction takes place.
If oxidation occurs on the left side of the fuel cell and reduction occurs on the right side, the movement of electrons can be described as follows: Electrons move from left to right through the circle labeled "M."
In a fuel cell, the process of oxidation takes place at the anode (labeled A) where the fuel is oxidized, releasing electrons. These electrons then flow through the external electrical circuit, represented by the wire connecting objects A and B. The electrons reach the cathode (also labeled A) on the right side of the cell, where reduction occurs.The circle labeled "M" represents the membrane or electrolyte in the fuel cell. This membrane allows the transport of ions but blocks the movement of electrons. As a result, electrons cannot flow directly through the electrolyte but must travel through the external circuit.
This movement of electrons through the external circuit is what generates an electric current that can be used to power electrical devices or systems.
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Warm Ocean currents, like the Gulf Stream current, will create a warmer wetter climate like the one in Northeastern United States and Western Europe.
True
or
False
Answers
What is the molecular geometry of the underlined carbon atom in the following compound: HC-C-CH3?
U bent
tetrahedral
linear
trigonal planar
do none of the above
Answers
Answer:
linear
Explanation:
If we look at the compound, we will understand that the underlined carbon is in sp hybridization. Recall that sp hybridization leads to a C-C bond angle of about 180°. When two chemical species are at a bond angle if 180°, then the both bonding groups are found to be on a straight line.
Hence, for any carbon in a triply bonded state or indeed any carbon atom that is in an sp will exhibit a linear geometry according to the Valence Shell Electron Pair repulsion Theory since there are two electron pairs present.
A quantity of nitrogen gas is enclosed in a tightly stoppered 500 mL flask at room temperature (20.0 °C) and 0.836 atm pressure. The flask is then heated to 680 °C. If the flask can withstand pressures up to 3 atm, will it explode under this heating? (In other words, what is the final pressure?). Remember to convert between °C and K.
Answers
Will the flask explode if the pressure is less than 3 atm if it can tolerate pressures up to that level.
Is nitrogen beneficial to the body?To create the proteins found in your muscles, skin, blood, hair, nails, and DNA, your body needs nitrogen. According the Royal Society of Chemistry, your diet's protein-containing foods are where you get your nitrogen. Meat, fish, beans, nuts, eggs, milk, and other dairy items are some of these foods. Nitrogen exposure is hazardous because it can displace oxygen and induce asphyxia.
Briefing:The formula below is used to determine the pressure at a given temperature for a given volume of nitrogen gas:
P₁/T₁ = P₂/T₂
where;
Initial pressure is P1.
Initial temperature is T1.
Final pressure is P2.
T2 is the final temperature.
P2 solution
P₂ = P₁ * T₂ / T₁
P₂ = 0.836 * (680 + 273) / (20 + 273)
P₂ = 2.72 atm =3atm
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What is the powerhouse of the cell?
Answers
Answer:
Mitochondria is the powerhouse of the cell, but don't let this distract you from the fact that Mr. Krabs sold SpongeBob's soul for 62 cents
Answer:
mitochondria
Explanation:
What does a chemical equation have that a chemical formula does not have
Answers
Answer:
Chemical equations show the ending outcome, while Chemical formulas only show how you lead up to it.
Explanation:
Use the drop-down menus to rank the boiling points of the following hydrocarbons. Use a "1" to indicate the compound with the lowest boiling point. A carbon chain with 5 central carbons, with C H 3 bonded to the first, second, and last carbons in the chain. 2 central carbons with C H 3 bonded to the outside, and C H 3 bonded to the leftmost inside carbon. 2 central carbons, each with C H 3 bonded to them. A central C has H bonded left, above, behind to the right, and in front to the right.
Answers
The ranking of boiling point is based on the molecular weight and intermolecular forces between molecules.
2 central carbons, each with CH3 bonded to them. A central C has H bonded left, above, behind to the right, and in front to the right. A carbon chain with 5 central carbons, with CH3 bonded to the first, second, and last carbons in the chain. 2 central carbons with CH3 bonded to the outside, and CH3 bonded to the leftmost inside carbon.
In this case, all compounds are hydrocarbons, meaning they are non-polar molecules and exhibit van der Waals forces. However, the length of the carbon chain and the arrangement of atoms in the molecule affect the magnitude of these forces.
The first compound has only two carbons and exhibits weak intermolecular forces, so it has the lowest boiling point. The second compound has three carbons and a more complex arrangement of atoms, resulting in slightly stronger van der Waals forces and a higher boiling point.
The third compound has a longer carbon chain, which increases the molecular weight and results in stronger intermolecular forces, giving it a higher boiling point than the previous two. The fourth compound has the longest carbon chain and has multiple branches, which increases the surface area of the molecule and the strength of the intermolecular forces, giving it the highest boiling point.
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Answer:
The answers are 4, 2, 3, 1
Explanation:
How many grams are in 105.4 mol of nickel
Answers
Answer:
6186.98
Explanation:
105.4 mol of nickel is 6186.98 nickel
Question 3 of 10
In order to test a hypothesis, a scientist needs to:
A. perform an experiment.
B. summarize previously recorded data.
c. have other scientists agree with the hypothesis.
D. develop an educated guess.
Answers
Answer:
A- Perform an experiment
Explanation:
which molecule does protein break up to?
Answers
Answer:
enzymes
Explanation:
sorry if I am wrong, have a nice day/night
Answer:
amino acids - enzyme is a protein that can control the rate of biochemical reactions
What is the change in enthalpy for a reaction if the reactants have 270 kJ of energy and the products have 150 kJ of energy
Answers
Answer-150 kj
Explanation:
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The economy of each region was shaped by all of the following factors, except:
A. Geography
B. Climate
C. Language
D. Population
Answers
Answer:
Language
Explanation:
this is very obvious not to be mean
SOMEONE PLEASE HELP!!!!!!!! An element with 70 protons and a mass of 170 would be considered:
a. stable
b. radioactive
c. nonexistent
Answers
Answer:
Explanation:
An element with 70 protons and a mass of 170 would be considered radioactive.
In general, an element with an atomic number (number of protons) greater than 82 tends to be radioactive. Since the element in question has 70 protons, which is less than 82, it does not fall into the category of naturally radioactive elements. However, it is important to note that the stability of an element also depends on the balance between protons and neutrons in the nucleus. Without information about the number of neutrons in the nucleus, we cannot determine the stability of this specific element definitively.
Select the keyword or phrase that will best complete each sentence.
1. _____anions are strong nucleophiles that open epoxide rings by an SN2 mechanism.
2. _____tautomers have an O-H group bonded to a C=C.
3. _____are formed from terminal alkynes with the addition of water using BH3 then H2O2.
4. _____are constitutional isomers that differ in the location of a double bond and a hydrogen and exist in an equilibrium with each other.
5. _____are compounds that contain a carbon-carbon triple bond.
6. _____of a terminal alkyne adds BH? to the less substituted, terminal carbon.
7. _____have a C=O and an additional C-H bond.
8. _____are formed from terminal alkynes with the addition of water using H2SO4 and HgSO4.
Answers
Answer:
1) acetylide
2) enol
3) aldehydes
4) tautomers
5) alkynes
6) Hydroboration
7) Keto
8) methyl ketones
Explanation:
Acetylide anions (R-C≡C^-) is a strong nucleophile. Being a strong nucleophile, we can use it to open up an epoxide ring by SN2 mechanism. The attack of the acetylide ion occurs from the backside of the epoxide ring. It must attack at the less substituted side of the epoxide.
Oxomercuration of alkynes and hydroboration of alkynes are similar reactions in that they both yield carbonyl compounds that often exhibit keto-enol tautomerism.
The equilibrium position may lie towards the Keto form of the compound. Usually, if terminal alkynes are used, the product of the reaction is a methyl ketone.
What two elements are the least abundant by volume in the crust
a) aluminum and sodium
b) magnesium and aluminum
c) potassium and magnesium
Answers
Answer:
potassium and magnesium
Which bodies of water in the list are found to the west of the Philippines?
Answers
Answer:
South China sea
Explanation:
To the west is the South China Sea, to the east the Philippine Sea and the Pacific Ocean, and to the south the Celebes Sea (or Sulawesi Sea).
It is desirable to remove calcium ion from hard water to prevent the formation of precipitates known as boiler scale that reduce heating efficiency. The calcium ion is reacted with sodium phosphate to form solid calcium phosphate, which is easier to remove than boiler scale. What volume (in liters) of 0.478 M sodium phosphate is needed to react completely with 0.225 liter of 0.279 M calcium chloride
Answers
Answer:
0.0876L of 0.478M Na₃PO₄ are needed
Explanation:
The reaction of calcium chloride, CaCl₂, with sodium phosphate, Na₃PO₄ is:
3CaCl₂ + 2Na₃PO₄ → Ca₃(PO₄)₂ + 6NaCl
Where 3 moles of calcium chloride react with 2 moles of sodium phosphate to produce 1 mole of calcium phosphate.
To solve this question we need to find moles of CaCl₂ added. Using the reaction we can find the moles of Na₃PO₄ that are needed to react completely and the volume using its concentration:
Moles CaCl₂:
0.225L * (0.279mol / L) = 0.0628moles of CaCl₂
Moles Na₃PO₄:
0.0628moles of CaCl₂ * (2mol Na₃PO₄ / 3 mol CaCl₂) =
0.0419moles of Na₃PO₄
Volume 0.478M Na₃PO₄:
0.0419moles of Na₃PO₄ * (1L / 0.478mol) =
0.0876L of 0.478M Na₃PO₄ are needed100.0 g CO2 reacts with 100.0 g H2O according to the equation below.
6CO2 + 6H2O -> 6O2 + C6H12O6
How many grams of glucose, C6H12O6 form from the 100.0 g H2O
[ ? ] g C6H12O
Answers
The mass of glucose produced from 100.0 g H2O is 166.8 g C6H12O6.
Given:100.0 g CO2 reacts with 100.0 g H2O according to the equation below.
6CO2 + 6H2O → 6O2 + C6H12O6
How many grams of glucose, C6H12O6 form from the 100.0 g H2O
According to the reaction, 6 moles of water react with 6 moles of carbon dioxide to produce one mole of glucose and 6 moles of oxygen.
Balanced Chemical Equation:
6CO2 + 6H2O → 6O2 + C6H12O6
We have given the mass of H2O, so first, we will calculate the number of moles of H2O.
Number of moles of H2O:
Mass of H2O = 100.0 g
Molar mass of H2O = 18 g/mol
Number of moles of H2O = Mass/Molar mass
= 100.0 g/18 g/mol
= 5.56 moles
Now, we know that 6 moles of water react with 1 mole of glucose.
So, the number of moles of glucose produced:Number of moles of glucose:
6 moles H2O → 1 mole glucose5.56 moles H2O → (1/6) x 5.56 = 0.9267 moles glucose
Now we will calculate the mass of glucose from the number of moles of glucose.
Mass of glucose:Number of moles of glucose = 0.9267 moles
Molar mass of glucose = 180.2 g/mol (C6H12O6)
Mass of glucose = number of moles x Molar mass
= 0.9267 moles x 180.2 g/mol
= 166.8 g
Therefore, the mass of glucose produced from 100.0 g H2O is 166.8 g C6H12O6.
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5. Use the formula that states the mass-to-volume ratio of a substance to solve the following:
(a) what is the density of a substance that has a mass of 7.9 g and a volume of 4.3 cm³?
(b) what is the mass of a substance that has a density of 8.9 g/cm³ and a volume of 5 cm³?
(c) what is the volume of a substance that has a density of 1.25 g/mL and a mass of 150 g?
Answers
Answer:
Explanation:
Part A
Density equals mass divided by volume. The units for density are g/cm³ or g/mL. Note that 1 cm³ = 1 mL.
d = m/v
Substitute the mass and the volume into the equation and then divide the bottom number into the top number.
d = 7.9 g/4.3 cm³ = 1.8 g/cm³
Part B
The density of a substance can be used as a conversion factor to find either the mass of the substance or the volume of the substance.
5 cm³ x 8.9 g/cm³ = 45 g
Note that cm³ units cancel and you are left with grams.
Part C
We will use the density of the substance to find the volume of the substance.
150 g x 1 mL/1.25 g = 120 mL
Note that you can invert density so the units of g cancel and you are left with mL.
What is the frequency of gamma radiation with energy of 6.96 x 10-14 J?
Answers
The frequency of gamma radiation is calculated to be = 1.11 *10^20 Hz.
What is gamma radiation?A gamma radiation is also known as gamma ray. It is a penetrating form of electromagnetic radiation arising from radioactive decay of atomic nuclei. It consists of shortest wavelength electromagnetic waves, even shorter than X-rays.
Gamma rays can pass through the human body completely and as they pass through, they cause ionizations that damage tissue and DNA.
As we know that E= hf
Hence, f= E/h
Given E= 6.96 x 10-14 J
And, Planck's constant, h = 6.626 *10^-34 m² kg/s
f = 6.96 * 10^-14J +/6.626 *10^-34
f = 1.11 *10^20 Hz
Hence, frequency of gamma radiation = 1.11 *10^20 Hz.
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Two liquids, A and B, have equal masses and equal initial temperatures. Each is heated for the same length of time over identical burners. Afterward, liquid A is hotter than liquid B. Which has the larger specific heat? Two liquids, A and B, have equal masses and equal initial temperatures. Each is heated for the same length of time over identical burners. Afterward, liquid A is hotter than liquid B. Which has the larger specific heat? Liquid A. There's not enough information to tell. Liquid B.
Answers
Answer:
Liquid A.
Explanation:
Specific heat is defined as the amount of heat required per unit of mass to raise the temperature by one degree celsius.
When two liquids are heated, the liquid with larger specific heat is the one which is hotter. That is because is required more energy to decrease its temperature by 1°C.
Thus, in the problem, liquid A has the larger specific heat
How many moles of O2 are needed to react with 7.00 moles of Al ?
Answers
As per the balanced reaction of Al and oxygen gas, 4 moles of Al needs 3 moles of oxygen gas. Hence, 7 moles of Al needs 5.2 moles of O₂.
What is aluminum oxide ?Aluminum metal is more reactive towards oxygen and it forms oxides on its surface. The balanced chemical equation of the reaction between Al and oxygen is written as follows:
\(\rm 4 Al + 3O_{2}\rightarrow2 Al_{2}O_{3}\)
As per this reaction, 4 moles of aluminum needs 3 moles of oxygen molecule. Then, the number of moles oxygen molecule required to react with 7 moles of Al is :
no.of moles of O₂ = (7×3)/4 = 5.2
Therefore, 5.2 moles of oxygen gas is required to completely react with 7 moles of aluminum metal.
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Question 9 of 10
Which statement correctly describes magnetic field lines?
O A. They cross each other at right angles.
B. They always point away from a south pole.
C. They show the direction a south pole will point.
D. They join north pole to south pole..
Answers
Calculate the mole fraction of nitric acid of a(n) 15.7% (by mass) aqueous solution of nitric acid. Calculate the mole fraction of nitric acid of a(n) 15.7% (by mass) aqueous solution of nitric acid. 2.56×10−2 0.102 5.33×10−2 5.11×10−2 The density of the solution is needed to solve the problem.
Answers
Answer:
0.0505
Explanation:
Step 1: Calculate the masses of solute and solvent
We have a 15.7% by mass nitric acid solution, that is, there are 15.7 g of nitric acid (solute) per 100 g of solution. The mass of water (solvent) is:
m(solution) = m(solute) + m(solvent)
m(solvent) = m(solution) - m(solute)
m(solvent) = 100 g - 15.7 g = 84.3 g
Step 2: Calculate the moles of nitric acid
The molar mass of nitric acid is 63.01 g/mol.
15.7 g × (1 mol/63.01 g) = 0.249 mol
Step 3: Calculate the moles of water
The molar mass of water is 18.02 g/mol.
84.3 g × (1 mol/18.02 g) = 4.68 mol
Step 4: Calculate the mole fraction of nitric acid
\(X(HNO_3) = \frac{nHNO_3}{nHNO_3+nH_2O} = \frac{0.249mol}{0.249mol+4.68mol} = 0.0505\)
jagsir saw his mother adding dried neem leaves to the metal vessel filled with wheat. jagsir asked the reason for this from his mother. what would be his mothers reply?
Answers
Answer:
Because i want to. would be the reply
Explanation:
VOTE ME BRAINLIEST PLSSSSSSSSS
Answer:
none of the above
option d
Zoe left her water bottle capped and in her bedroom. She came back some time later to realize that the bottle was “sweating” and left a ring of liquid on her nightstand
Explain thoroughly the science behind why Zoe’s water bottle is sweating
Answers
Answer:
Condensation
Explanation:
Zoe is quite keen to have noticed what we call condensation. Air contains many components, one of those being water vapor. Like how sugar is soluble in water, water can be said to be "soluble" in air. Water will evaporate into the air to a certain extent. The higher the temperature of the air, the more water the air can hold. If the air has more water that it can hold (potentially because of a temperature decrease), the extra water will come out of the air. Zoe's water bottle was cold, and because the air around Zoe's bottle had cooled down, the air can not hold as much water as it could when it was warm, so the air deposited the extra water in the form of liquid water onto the bottle, giving the illusion that her bottle was sweating.