When two heterozygous parents are crossed (Aa X Aa), what percent of the offspring will have a dominant phenotype?

Answers

Answer 1

75% dominant and 25% resistive


Related Questions

If the density of lead is 11.34g/.what is the density in kg/l

Answers

Answer:

0.01134kg

Explanation:

You divide by 1000 to get the kg

Which of these describes an ethical dilemma that drug designers could face?
a. whether people should take medicine or if instead they should
seek alternative treatments.
b. a drug lowers blood pressure but can cause severe coughing
spells.
c. a new drug is effective in preventing cancer cells from
reproducing
o d. a drug for blood pressure is absorbed in the colon. it is effective,
but occasionally it can erode the colon walls.

Answers

The statement 'whether people should take medicine or if they should seek alternative treatments' describes an ethical dilemma that drug designers face.

What is drug development?

Drug development refers to all the processes from target drug identification to drug validation and commercialization.

Drug development involves different stages of development including preclinical and clinical trials.

Ethical dilemmas in drug development include the release of a drug that is ineffective when compared to parallel treatments.

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Answer:

A drug for blood pressure is absorbed in the colon. It is effective, but occasionally it can erode the colon walls.

Explanation:

i just took the test and got it right.... i hope this helps :)

0.5mol/dm3 hydrochloric acid is added gradually to a flask containing 20cm3 of 2 mol/ dm3 sodium hydroxide solution.
What is the total volume, in cm3, of the mixture in the flask when the solution is just neutral?
A 30
B 40
C 60
D 100

Answers

Answer:

The answer is B which is 40

From the calculations and the data presented, the total volume in the flask is 100cm^3

What is neutralization?

A neutralization occurs between an acid and a base to yiled salt and water only.

The reaction equation here is; HCl + NaOH -----> NaCl + H2O. Now, the volume of HCl used is obtained from;

2 * 20 * 1/0.5 * 1 = 80 cm^3

Total volume in the flask =  80 cm^3 + 20cm3 = 100cm^3

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Name two elements that are extracted from
their compounds by electrolysis.

Answers

Answer:

Hydrogen and oxygen

Explanation:

This is the most common compound water

When water goes through electrolysis it produces two elementsH_2 and O_2

The reaction is given by

H_2O-->H_2+O_2

Answer:

Hydrogen and helium is the answer

Hello people ~
CO2 extinguishers help extinguish fires by –

A. Cutting supply of nitrogen.

B. Limiting the supply of fuel.

C. Reducing the heat of the surroundings.

D. Cutting the supply of oxygen​

Answers

Answer:

Cutting the supply of oxygen

Explanation:

We know that a thing need three things to burn

Oxygen Heat flammable object .

Co_2 stops oxygen supply so fire gets extinguished

What change would occur in the mass between the reactants (lead nitrate and potassium iodide) and the products (lead iodide and potassium nitrate)?

Please help me this is coming in my exam. Thank you

Answers

Answer:

Pb(NO

3

)

2

+

2

KI

PbI

2

+

2

KNO

3

Explanation:

Which is a disadvantage of using chemical indicators? they are expensive to use. they measure ph directly. they must be selected for a narrow ph range. they do not use electricity to operate.

Answers

Chemical indicators are the chemical reagents that show the change in reaction by changing color. Chemical indicators must be chosen with a narrow pH range.

What are indicators?

Indicators are the solutions or the substances used for the qualitative and the quantitative measurement by a change in color because of the absence or the presence of the sample concentration.

The chemical indicators cannot detect the exact pH and should be used with a narrow range of pH.

Therefore, option C. the narrow range of pH is the disadvantage of chemical indicators.

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Answer:

C (They must be selected for a narrow ph range.

Explanation:

Edg 2022

Which bonds are formed when elements share electrons and form molecules?.

Answers

Answer:

A covalent bond

Explanation:

the atoms bond by sharing electrons. Covalent bonds usually occur between nonmetals. For example, in water (H2O) each hydrogen (H) and oxygen (O) share a pair of electrons to make a molecule of two hydrogen atoms single bonded to a single oxygen atom.

Sample data from titration lab:
Amount of analyte; (HCI): 19.54 mL
Amount of titrant: (NaOH): 12.33mL
Molar concentration of NaOH: 0.5 mol
The molarity of the HCl would be:
VM
The numbers I used are probably wrong

Answers

Based on the volumes of HCl and NaOH reacted, the molarity of HCl is 0.3 M

What a titration?

A titration is a process in volumetric analysis in which the given volume of a substance of known concentration reacting with a volume another solution of unknown concentration is used to determine the unknown concentration of another solution

In the titration given, an unknown concentration of HCl reacts with 0.5 M NaOH solution.

The equation of the reaction is given below:

HCl + NaOH -----> NaCl + H2O

At equivalence point, 1 mole of HCl reacts with 1 moles of NaOH

moles of NaOH = 12.33 × 0.5 = 6.165 moles

moles of HCl = 19.54 × M

From above, moles of HCl = 6.165 moles

Molarity of HCl, M = 6.165/19.54

Molarity of HCl = 0.3 M

Therefore, the molarity of HCl is 0.3 M

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Answer:

0.317

Explanation:

right on edge

HELP1!!!!!!!!!!!!!!!!!!!!!!!!!!!111

Answers

Answer:

I believe c

Explanation:

Answer these for 40ps

Answers

Answer:

7. H

8. F

9. G.

10. D

11. A

12. E

13. B

14. C

Balance the chemical equation

Answers

Explanation:

please mark me as brainlest

Please help-

Answers

Answer:

you are not posted question

Briefly explain the two ways Avogadro's number was calculated.​

Answers

The value of Avogadro's number was obtained by dividing the charge of a mole of electrons by the charge of a single electron which is equal to 6.02214154 x 1023 particles per mole.

The most common used way is

n=Charge of one mole of atom /charge of one single atom

There can be another derived way

No of molecules=No of moles ×Avagadro noAvagadro no=No of molecules/No of moles

hello people ~
Identify the gas that is generally produced when coal is burnt in the presence of a lot of air.

A. Carbon monoxide

B. Sulphur dioxide

C. Nitrogen dioxide

D. Carbon dioxide

Answers

Answer:

Carbon dioxide

Explanation:

The reaction is given by

C+O_2-->C0_2

CO2 is a harmful gas also responsible for the global warming and air pollution

When coal is burnt in the presence of excess air, some of the gases produced include carbon dioxide, oxides of nitrogen, and sulfur dioxide.

What are the gaseous products from coal burning?

When coal is burnt in the presence of a lot of air, a variety of gases are produced: These include:

Carbon dioxide which is the major productOxides of nitrogenOxide of sulfur

Aside from carbon dioxide, other gases depend on the content of coal.

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For 480. 0 mL m L of pure water, calculate the initial pH p H and the final pH p H after adding 2. 0×10−2 mol m o l of HCl H C l

Answers

Given that the volume of the pure water is 480 mL and the mole of HCl added to the water is 2×10¯² mole. Therefore, the Initial and final pH of the water are:

1. The initial pH of the pure water is 7

2. The final pH of the water is 1.38

What is pH ?

This is simply a measure of the acidity / alkalinity of a solution.

The pH measures the hydrogen ion concentration while the pOH measures the hydroxide ion concentration

pH scale

The pH scale is a scale that gives an understanding of the variation of the acidity / alkalinity of a solution.

The scale ranges from 0 to 14 indicating:

0 to 6 indicates acid 7 indicates neutral (pure water) 8 to 14 indicate basic

How to determine the molarity Volume = 480 mL = 480 / 1000 = 0.48 L Mole of HCl = 2×10¯² mole Molarity =?

Molarity = mole / Volume

Molarity = 2×10¯² / 0.48

Molarity = 4.17×10¯² M

Dissociation equation

HCl(aq) —> H⁺(aq) + Cl¯(aq)

From the balanced equation above,

1 mole of HCl contains 1 mole of H⁺

Therefore,

4.17×10¯² M HCl will also contain 4.17×10¯² M H⁺

How to determine the pH Hydrogen ion concentration [H⁺] = 4.17×10¯² MpH =?

pH = –Log H⁺

pH = –Log 4.17×10¯²

pH = 1.38

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can someone pls help me

Answers

Answer:

the picture is blurd

Explanation:

(a) what is the approximate ductility (%el) of a brass that has a yield strength of 230 mpa (33360 psi)?

Answers

Based on the calculations, the approximate ductility (%el) of this brass is equal to 2.3%.

Given the following data:

Yield strength = 230 mpa (33360 psi).

What is ductility?

Ductility can be defined as an important property of a material which determines its ability to become elongated due to the application of stress.

Mathematically, the ductility of a material can be expressed as percentage elongation in length:

[tex]\% el = \frac{\Delta L}{L_i} =\frac{L_f - L_i}{L_i}[/tex]

Where:

[tex]L_i[/tex] is the original length.[tex]L_f[/tex] is the final length.[tex]\Delta L[/tex] is the yield strength.

For this exercise, let us assume the original length of this brass is equal to 100 meters.

Substituting the parameters into the formula, we have;

[tex]\% el = \frac{230}{100}[/tex]

Ductility = 2.3%.

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The approximate ductility (%el) of a brass that has a yield strength of 230 mpa is 2.3%.

How do we calculate the approximate ductility?

Approximate ductility of any substance will be calculated by using the below equation as:

%el = ΔL / L₁, where

ΔL = yield strength = 230 MPaL₁ = initial length = 100 MPa (assume)

On putting this values, we get

%el = 230/100 = 2.3%

Hence 2.3% is the approximate ductility.

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Freon-12 synthesized by the reaction between fluoride at carbon tetrachloride and antimony(III)Suppose 5.0 mol of antimony (III) fluoride is added to 10.0 mol of carbon tetrachloride: How many moles each compound (CCL; SbF;, CClFz, and SbCI3) are there if the reaction is |00% complete

Answers

I hope this help but I’m sorry if it wrong

Suppose 5.0 mol of antimony (III) fluoride is added to 10.0 mol of carbon tetrachloride, and from the 100% reaction there are the equivalents of 0 moles of SbF₃, 5.0 moles of SbCl₃, 0 moles of CCl₄, and 15.0 moles of CClF₂.

What is the significance of the balanced reaction?

A balanced reaction is one where the reactants and products are present in equal amounts, and if the 100% reaction takes place, then the reactant sides have 1 mol of SbF₃ and 3 mol of CCl₄ that make the product of 1 mol of SbCl₃ and 3 mol of CClF₂. After the 100% reaction, all the reactants get converted into the product. The complete reaction is the below.

SbF₃ + 3CCl₄ → SbCl₃ + 3CClF₂

Hence, suppose  5.0 mol of antimony (III) fluoride is added to 10.0 mol of carbon tetrachloride, and from the 100% reaction there are the equivalents of 0 moles of SbF₃, 5.0 moles of SbCl₃, 0 moles of CCl₄, and 15.0 moles of CClF₂.

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what are the properties of aluminium and their use​

Answers

Answer: Answers are in bulleted lists.

Explanation: Aluminum...

has a low densityis non-toxichas a high thermal conductivityhas excellent corrosion resistancecan be easily cast, whether it's machined or formed.

Uses:

Aeroplane PartsCansWindow framesBeer kegsFoils Kitchen utensils

Have a great day! :)

A student creates a model that displays a cross-section of a metal wire wrapped in plastic insulation. Which statement best describes the metal wire?
A. The metal wire is an element.
B.The metal wire is a compound.
C. The metal wire is a homogenous mixture.
D. The metal wire is a heterogeneous mixture.

Answers

Cross-section of a metal wire wrapped in plastic insulation the metal wire is an element.

What is an element?

An element is a substance or material that cannot be affected by an external substance or cannot be broken down by any reaction.

Metal wire is serving as an element, it should not be easily broken or penetrated as an insulator.

Therefore, Cross-section of a metal wire wrapped in plastic insulation the metal wire is an element.

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Use the bond energy to calculate an approximate value of δh for the following reaction. Which is the more stable form of fno2?

Answers

The enthalpy of reaction or ∆H reaction is the difference between the bond energy of the reactants and the bond energy of the products.

What is ∆H reaction?

The term ∆H reaction refers to the heat that is evolved or absorbed in a chemical reaction. It is also known as the enthalpy of reaction.

The question is incoherent but I will try to answer as much as possible. Using the values of bond energy, ∆H reaction = Bond energy of reactants - bond energy of products. This will give us the enthalpy of reaction.

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7.

Which substance, if added to a saturated solution of

NH4OH, would cause the pH of the solution to increase?

A. HCI

B. NH4C1

C. LiOH

D. CH3OH

Answers

Answer:

C LiOH

Explanation:

because it is an hydroxide as well as it is alkaline

Answer:

C. LiOH

Explanation:

LiOH is a strong base while the others are acids

What three things does force cause?

Answers

Forces can cause objects to accelerate , decelerate , stop , start moving , change direction , change shape , or even turn

Describe the patterns that can be observed for elements on a Periodic table.

Answers

Answer:

mark brainliestbrainliestbrainliest.

Explanation:

The periodic table is an arrangement of the elements in order of increasing atomic number. Elements that exhibit similar chemistry appear in vertical columns called groups (numbered 1–18 from left to right); the seven horizontal rows are called periods.

The number of protons and neutrons in an atom is that atoms __ number.

Answers

Answer: Mass number

If you look at the periodic table, you can simply find the mass number either on the top or bottom of the element.

Describe how you use two living and two nonliving natural resources every day.

Answers

Answer:

Well, if you live on a farm, you have to feed the living animals and when you eat, you use a fork, knife, napkin, chair and those are all nonliving.

Explanation:

Also, if your trying to go on a scavanger hunt, and you pick up an animal then you are  interacting with a living resource. Also water can be counted as both because water isnt alive but it can be used on living things. like if you were to drink it or water the plants.

Answer:

I use plant and dog as living things and mobile and dish as non living things everyday.

Explanation:

I use plants to get oxygen, vegetables and herbs and dog to help me to protect my home everyday. similarly, I use mobile to call others and I use dish to eat food everyday.

All of the following are true about scientific theories, except:
O A theory is an explanation of why
something happens.
O Theories must have been extensively
tested.
O A theory can be the result of one
scientific investigation.
O Theories are based on many
observations.

Answers

I think it’s the 3 one

On all aerosol cans you see a warning that tells you to keep the can
away from heat because of the danger of explosion. What is the
potential volume of the gas contained in a 500.0 mL can at 25°C if it
were heated to 54°C. In other words if the can could expand to allow
the gas to take up a greater volume, what would be the new volume of
the gas when heated as previously described?

Answers

Gas laws show the relationship between tempertaure, pressure, volume, volume and number of moles. The new volume of the gas is 549 mL.

What is Charles law?

Charles law states that, the volume of a given mass of gas is directly proportional to its temperature at constant pressure .

Given that;

V1 = 500.0 mL

T1 = 25°C  or 298 K

V2 = ?

T2 = 54°C + 273 = 327 K

Since;

V1/T1 = V2/T2

V1T2 = V2T1

V2 = V1T2/T1

V2= 500.0 mL * 327 K/298 K

V2 = 549 mL

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Why do we balance chemichal reactions

Answers

Answer:

We balance chemical equations due to the law of conservation of mass, which states that mass can neither be created or destroyed. Therefore, in a chemical reaction, the total mass of the reactants must be equal to the total mass of the products. Balancing equations accounts for the total mass of the reactants and the total mass of the products.

Explanation:

We balance chemical equations due to the law of conservation of mass, which states that mass can neither be created or destroyed. Therefore, in a chemical reaction, the total mass of the reactants must be equal to the total mass of the products. Balancing equations accounts for the total mass of the reactants and the total mass of the products.

Answer:

to satisfy the law of conservation of matter.

the law of conservation states that matter can not be created nor destroyed.

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