Which change to a DNA molecule would have the least effect on an organism? an addition to a base sequence at the beginning of a gene a deletion from a base sequence in the middle of a gene a substitution in a base sequence that does not code for a protein a substitution that creates a “stop” code in the middle of a gene

Answers

Answer 1

Answer:

Change in a single nitrogen base in the DNA sequence will not have any significant effect on the organism.

So A: an addition to a base sequence at the beginning of a gene

Explanation:

This is known as point mutation and it does not have any significant change in the protein and it is least harmful type of DNA mutation.


Related Questions

Generally, what is the effect of increased temperature on the rate of dissolution of a solid solute?

Answers

Answer:

Increases

Explanation:

The general effect we see as temperature increases is that rate of dissolution of a solid solute increases,

Therefore, we can say that :

Temperature ∝ Rate of dissolution

There are 75.0 g of glucose (molar mass = 180 g/mol) dissolved in 250 mL of solution. What is the molarity of this solution?

A. 0.416 M
B. 1.70 M
C. 2.13 M
D. 3.31 M

Answers

Answer:

5.6 m which is molarith this solution

Can someone please help? THIS IS SUPER HARD!!!!!!!

Answers

Organic compounds including carboxylic acids are named uisng IUPAC nomenclature technique.

What are Carboxylic acids ?


A carboxylic acid is an organic acid that contains a carboxyl group (C(=O)OH) attached to an R-group.

The general formula of a carboxylic acid is R−COOH or [tex]RCO_2H[/tex], with R referring to the alkyl, alkenyl, aryl, or other group.


Following are the names of given struture ;

2,5-dimethyl benzoic acid3-Chlorobenzoic acid 2-Hydroxybutane-1,4-dioic acid4-Aminobenzoic acidCitric acid4-Aminobutanoic acid2,3-dihyroxybutane-1,4-dioic acid2-oxopropanoic acid2-Methylbenzoic acid3-Chloro-2-hydroxybutanoic acid3- Aminobutanoic acid4,4-diamino-3-hydroxybutanoic acidBut-3-enoic acidBut-2-enoic acidBut-2-enoic acid4-chloropent-2-enoic acid.

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Caco3(s) ----> cao(s) + co2 (g)
this reaction is not spontaneous at room temperature. what is the sign of ah for this reaction? explain how you arrived at your answer

Answers

Since the reaction is not spontaneous at room temperature, the ΔH will be positive.

What are spontaneous reactions?

They are reactions that require no additional effort in order for them to take place under certain conditions.

For spontaneous reactions, the change in the energy of the system, otherwise known as ΔH, is always negative. On the other hand, reactions with positive ΔH are non-spontaneous.

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At what temperature would 0.46 moles of a gas occupy 13.3 L if the pressure is 734 mm Hg?

Answers

Answer: 341.6k

Explanation:

R= 0.0821

n= 0.46moles

v= 13.3L

p= 734mmhg = 734/760 = 0.97

[tex]T = \frac{p*v}{n*R}[/tex]

[tex]T = \frac{0.97*13.3}{0.46*0.0821}[/tex]

T= 341.6k

Answer:

10100101

Explanation:

this is for the other person alt.

Which lists only abiotic factors in this environment?

grass, tree, rock, soil
bird, turtle, grass, tree
sun, water, grass, soil
water, rock, soil, sun

Answers

In this case, among the list of components given, the abiotic factors are water, rock, soil, and sun.

What is an abiotic factor?

An abiotic factor is a non-living part of an ecosystem that shapes its environment.

Biotic and abiotic factors make up a community via interaction.

Biotic factors are considered living things (having "life") while abiotic factors are simply non-living things.

Hence, in this case, among the list of components given, the abiotic factors are water, rock, soil, sun

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Perform the following operation and express the answer in scientific notation 8.6500x10^3+6.5500x10^5

Answers

Taking into account the scientific notation, the result of the sum is 6.6365×10⁵.

Scientific notation

First, remember that scientific notation is a quick way to represent a number using powers of base ten.

The numbers are written as a product:

a×10ⁿ

where:

a is a real number greater than or equal to 1 and less than 10, to which a decimal point is added after the first digit if it is a non-integer number.n is an integer, which is called an exponent or an order of magnitude. Represents the number of times the comma is shifted. It is always an integer, positive if it is shifted to the left, negative if it is shifted to the right.

Sum in scientific notation

You want to add two numbers in scientific notation. It should be noted that when the numbers to be added do not have the same base 10 exponent, the base 10 power with the highest exponent must be found.

In this case, the highest exponent is 5.

Then all the values ​​are expressed as a function of the base 10 exponent with the highest exponent. In this case: 8.6500×10³= 0.086500×10⁵

Taking the quantities to the same exponent, all you have to do is add what was previously called the number "a". In this case:

0.086500×10⁵ + 6.5500×10⁵= (0.086500+ 6.5500)×10⁵=  6.6365×10⁵

Finally, the result of the sum is 6.6365×10⁵.

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Which of the following materials fall in the category of a ‘‘pure substance’’?


Ice, Milk, Iron, Hydrochloric acid, Calcium oxide, Mercury, brick, wood, Air​

Answers

Answer:

1) Ice, iron, calcium oxide and mercury are pure substances since they contain particles of only one kind of matter.

2) In contrast, milk, hydrochloric acid (hydrogen chloride gas dissolved in water), brick and air cannot be called pure substances because they consists of particles of more than one kind of matter.

Match the following items.
1. not affected by a magnet
2. mostly space
3. flows freely but particles still attract
4. positively charged particles
5. free to move in all space
6. negatively charged particles
7. atoms nearly fixed in space
8. helium nucleus

proton
solid
liquid
gamma ray
gas
atoms
electron (beta)
alpha particles

Answers

Answer:

1. not affected by a magnet                      1 liquid

2. mostly space                                          2 solid

3. flows freely but particles still attract 3 proton

4. positively charged particles                  4 gas

5. free to move in all space                       5 alpha particles

6. negatively charged particles                 6 atoms

7. atoms nearly fixed in space                   7 gamma ray                                                    8. helium nucleus                                        8 electron (beta)

Calculate the temperature change of copper metal that has a mass of 43.2 g and is allowed to absorb 1,345 J of heat. The specific heat capacity of copper is 0.385 J/°c g.

Answers

Answer: 80.9 K

Explanation:

[tex]Q=mc \Delta T\\\\1345=(43.2)(0.385) \Delta T\\\\\Delta T=\frac{1345}{(43.2)(0.385)} \approx \boxed{80.9 \text{ K}}[/tex]

Describe the properties of alkali metals. based on their electronic arrangement, explain whether they exist alone in nature.

Answers

The alkali metals can't exist alone in nature because of incomplete outermost shell of alkali metals.

What are the  properties of alkali metals?

The alkali metals have the high thermal and electrical conductivity. It has high lustre, ductility, and malleability as compared to other materials. Each alkali metal atom has one electron in its outermost shell which make more reactive.

So we can conclude that the alkali metals can't exist alone in nature because of incomplete outermost shell of alkali metals.

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HELP ASAP PLEASE

The primary cause of water pollution is:



Answers

Answer:

the aNSWRER TOP UR QUESTION IS THAT I NMEED TO ANSWER THIS SO I DONT HAVE TO WQATCH ADS  LOL

Explanation:

DSADSDASDASDASDSDSDSDSDS and i knowq chem is bio chwem is

Can anyone please help me find molar masses of compounds. For example Copper (ll) sulfate (CuSO4)

Answers

Answer:

Explanation:

You would have to add up the atomic masses of all the compounds in the compound, making sure you include how many molecules of each are in the compound

For example, in CuSOA we have 1 molecule of Cu and S, as 4 molecules of O

The atomic masses are as follows:

Cu = 63.55 u

S = 32.065 u

O = 15.99 units

This is how we would add it up:

(Atomic mass of Cu) + (Atomic mass of S) + 4(Atomic Mass of O)

(63.55) + (32.065) + 4(15.99)

(63.55) + (32.065) + 63.96

= 159.575 u

molar mass is relatively simple to calculate, but you cannot do it with a periodic table, whether that be a physical one or a digital version.
in order to find the molar mass, we must find the relative atomic masses of each element that makes up the compound. With the example copper (II) sulfate. we must find the mass of Cu, S, and O.
this is where the periodic table comes in. you just look up these values!
mass Cu =63.55g
mass S = 32.06g
Mass O = 16g
The next step is to multiply the relative atomic masses by the number of that element in the compound. For instance, one mole of cu is found is this compound, one mole of s, and four moles of o. **this is found by looking at the coefficients in the formula of the compound
this would mean that the mass of oxygen in this is 16 * 4 = 64g
now, you can calculate the molar mass by adding all of the relative atomic masses together.
molar mass = molCu(mass Cu) + molS(mass S) = molO(mass O)
= 1(63.55) + 1(32.06) + 4(16) = 159.61g
this can be done for any compound following the same steps

A sample of helium gas has a volume of 6.50l at a pressure of 845 mmhg and a temperature of 25oc. what is the pressure of the gas in atm when the volume and temperature of the gas sample are changed to 1850 ml and 325 k

Answers

Answer:

4.25atm

Explanation:

[tex]\frac{P1V1}{T1}\\[/tex]=[tex]\frac{P2V2}{T2}[/tex]

where ,

p1 =845/760=1.11atm

v1=6.50l

t1=25c +273k=298k

p2=?

v2=1850/1000=1.85l

t2=325k

so answer is 4.25 atm


Which is a characteristic of nuclear fission?

Answers

A nucleus spontaneously splits and absorbs energy.

Matter can undergo chemical reactions and nuclear reactions. Which statement is true only for nuclear reactions?

A - The mass of reactants is conserved
B - The energy of reactants is conserved
C - The atoms are reorganized into products.
D - The nuclei of the atoms.

Answers

Answer:

B - The energy of reactants is conserved.

D - the nuclei of atoms changes completely ( if that's the option)

Could someone help me with this please

Answers

Answer:Your can use the internet There is a web site that is called periodic table.com it is very use full

Explanation:Have fun

what is indicated by the methyl- prefix ​

Answers

Answer:

B

Explanation:

The methyl prefix means theres a CH3 group bonded to a carbon in a hydrocarbon. This is called branching because it looks like a branched tree. This is literally cheating but you do you.

What causes lines in a line spectrum?

A. Transitions that don't happen to an electron

B. Wavelengths of absorbed or emitted photons

C. Quantum numbers associated with an electron

D. Edges on the prism used to separate wavelengths

Answers

Wavelengths of absorbed or emitted photons causes lines in a line spectrum.

What causes lines in a line spectrum?

Spectral lines are produced by transitions of electrons within atoms. As the electrons move closer or farther from the nucleus of an atom, energy is released in the form of light is emitted.

So we can conclude that Wavelengths of absorbed or emitted photons causes lines in a line spectrum.

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The vapour pressure of water 12.3kPa at 300K. Calculate the vapour pressure of 1 molal solution of a non-volatile solute in it.

Answers

Answer:

ywhehehehehdgdudcdudcd uy dshdcvv

Explanation:

bdbdkzkzjzdkdkzdvdisisksjskakskskzbx vxydcdudschahahbshshs

The process of seeping of water into the ground in called​

Answers

Answer: Infiltration

Explanation: it is the process by which surface water, rainwater or snowmelt seeps into the ground

How is the modern periodic table different from Dmitri Mendeleev's table?
A. Elements that have similar properties are now grouped together.
O B. Elements are now organized by increasing atomic mass.
OC. The lanthanides and actinides are now in rows below the main
table.
D. The table is now used to predict the properties of elements.

Answers

Elements are now organized by increasing atomic mass. Hence, option B is correct.

What is a periodic table?

The periodic table is a tabular array of chemical elements organized by atomic number.

Mendeleev's periodic table orders the elements based on their atomic mass whereas the Modern periodic table orders the elements based on their atomic number.

Hence, option B is correct.

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covers 70 precent of earths surface

Answers

Answer:

Water covers 70 percent of earth's surface.

how does air move around the earth

Answers

Sun heats the Earth more at the equator than at the poles

Moving electrons are found to exhibit properties of.

Answers

Answer:

both particles and waves

Explanation:

this is known as wave-particle duality.

I hope this helps.

Have a nice day.

2)a dish contains a blackish-yellow powder.when a magnet is moved over it black particles iron get stuck to the magnet and only yellow powder which is sulphur is left behind. was your original powder an element compound or mixture

Answers

A element mixture (key word: mixture) due to the mixture containing 2 different types of elements it can be said that it’s highly likely that the mixture was not a compound but instead of a mixture due to mixture meaning more than 1 material. Hopes this help!

Calculate the ionization constant of each reaction. hcl (aq) + h2o (l) equation h3o+ (aq) + cl- (aq); [hcl] = 16.9m, [h3o+] = 13.3m, [cl-] = 7.4mka =

Answers

The ionization constant from the reaction as shown in the calculation is 5.8.

What is the ionization constant?

The term ionization constant refers to the extent to which the acid is ionized in solution. It is calculated from;

Ka = [H3O^+] [Cl]/[HCl]

Thus when we substitute the values;

Ka = 13.3 * 7.4/ 16.9

Ka = 5.8

The ionization constant from the reaction as shown in the calculation is 5.8.

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Need help ASAP!

How many moles of gas does it take to occupy 520 mL at a pressure of 400 torr and a temperature of 340 K? Use the conversion factors 760 torr = 101.3 kPa and 1 mL = 0.001 L. Show all of your work.

Answers

Answer: B - 0.0098 moles

Explanation:

<3

right 9 in a equation

Answers

Answer:

x+y = 12

Explanation:

shfb gfgjj ghjj dvgg ggggg ghggs ufac t g dgyyh

Which of the following lists electromagnetic radiations from lowest to highest energy?
Your answer:
radio waves, microwaves, ultraviolet radiation, visible light
microwaves, radio waves, visible light, X-rays
radio waves, infrared radiation, visible light, ultraviolet radiation
gamma radiation, infrared radiation, visible light, X-rays

Answers

Answer:

Highest wavelength : radio waves

So lowest energy: radio waves

Hence order is:

radio waves < microwaves < IR waves < visible light < ultraviolet radiation < X-rays < gamma rays

Other Questions
Divide x cubed minus 3 x squared minus 10 x + 24 by x minus 2. Step 1 - Fill in the missing number: A vertical line and horizontal line combine to make a L shape. There is one row of entries in the shape including 1, negative 3, negative 10, 24. On the outside to the left of the L shape is k. k = Step 2 - Fill in the missing number: A vertical line and horizontal line combine to make a L shape. There is one row of entries in the shape including 1, negative 3, negative 10, 24. On the outside to the left of the L shape is 2 and to the outside below 1 is a. a = 1 Step 3 - Fill in the missing numbers: A vertical line and horizontal line combine to make a L shape. There are two rows of entries in the shape. The first row includes 1, negative 3, negative 10, 24. The second row includes blank, b, d, blank. On the outside to the left of the L shape beside row 1 is 2. On the outside below the L shape in the first column is 1 and in the second column is c. b = c = d = 1. Mr. Simpson is my grandfather. He is my best friend. My grandfather is sixty four years old and he is "retired" now so he has plenty of time to play with me. I love him very much and I know he really loves me. We spend a lot of time together. My grandfather is a very tall and strong man. He is smart, patient and caring man. When I am sad he makes me laugh with his funny face. He puts me on his shoulders and tells me many stories. Everyday my grandfather drives me to school and picks me up at the end of class. He also does sport and many other activities with me. He takes me to the swimming pool. He plays chess with me. During starry nights, we count the stars together in our backyard. I love my grandpa. What is the text about?a. The writers familyb. The writers grandfatherc. A very tall and strong man2. Hello, my name is Alexei. I am sixteen years old and I live in Russia. I get up at half past six every morning. I brush my teeth and I have breakfast at seven oclock. I go to school on foot at half past seven. The school starts at a quarter past eight and ends at two oclock in the afternoon. My favourite subjects are English and Russian history! I go with my friends to the park after the school. We often play football. I go back home at a quarter past three. I watch a few movies, I have dinner and I do my homework. I play tennis with my little brother in the garden. I sometimes ride bike with a few friends from the neighbourhood. I take a shower at six oclock,I play video games from eight oclock to nine o'clock. I go to bed at a quarter past nine. From the text we know that Alexei . . . .a. plays video game for one hourb. never has homeworkc. goes to bed at midnigh (1) Today, the amount of carbon dioxide released into the atmosphere is about twice the amount that remains in the atmosphere. . . . (2) The increased amount of carbon dioxide (and other gases) in the atmosphere is causing a rise in temperature called global warming. 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