why do dna strands copy different

Answers

Answer 1

Answer:

Because the two strands of a DNA molecule have complementary base pairs, the nucleotide sequence of each strand automatically supplies the information needed to produce its partner.

Explanation:


Related Questions

How many types of rocks can form from the rock cycle? A. 1 B. 2 C. 3 D. 4
PLEASE HELP!!!!!!!!! IM BEING TIMED!!​

Answers

Answer:

B)

Explanation:

I think it is B, I learned this a long time ago correct me if I'm wrong. :(

How will increased temperatures affect water in California?

Answers

Answer:

Rising temperatures also increase the rate at which plants transpire water into the air to keep cool, so irrigated farmland would need more water.

Explanation:

8 Cloning is one type of biotechnology. Which of these choices is an example of
cloning?
A Certain chickens are bred for their distinctive feather color.
B Several copies of a fruit fly gene are produced in a laboratory.
C Plants with red flowers are bred with plants with blue flowers.
D Yeast cells are placed under an ultraviolet lamp, causing their DNA to mutate.

Answers

Answer:

B) Several copies of a fruit fly gene are produced in a laboratory

A student used a microscope to study four members of the phylum Ciliophora. Members of
this phylum move when propelled by hundreds of tiny cilia.
Paramecium
caudatum
Paramecium
aurelia
Os
ALLA
3220
Paramecium
bursaria
Paramecium
multimicronucleatum
VIITTEITA
Although these organisms belong to the same phylum, they are classified as different -
A families
B species
C kingdoms
D orders

Answers

Answer:

A

Explanation:

Makes the most sense

Although these organisms belong to the same phylum, they are classified as different families. Thus, option A is correct.

What is family?

The family structure that is being described in the description above is step family structure. The step family is being formed by which one family ends with divorce and the individual is likely to get remarried, creating a blended or step family that is associated with two families that are separated.

Family of choice refers to the concept of family is intended to capture the commitment of chosen, not fixed, care and support. A family of choice is also known as chosen family and found family. It is a family that is made up of intentionally by chosing the members for love and support rather than blood. Basically, family of choice is that one in which people chose their member intentionally.

Therefore, Although these organisms belong to the same phylum, they are classified as different families. Thus, option A is correct.

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Use these when yall break up.

“the facts i convinced my friends you were attractive-“

“i lowered my standards for you and this is how you treat me?”

“yk im startin to understand why my friends laughed when i showed them you”

girllllll your gonna leave that man im tears !!!!!

Answers

I will remember these when I will not be single (Single life sucks)

20
Which type of molecule is pictured? *
(1 Point)
carbohydrate
lipid
nucleic acid
O protein

Answers

The type of molecule pictured here is a lipid.

PLS HELP!!
In a normal distribution, the number of organisms exhibiting a phenotype variant near the lowest value is(1 point)
-greater than the number exhibiting a variant near the highest value.
-greater than the number exhibiting a variant near the middle value.
-less than the number exhibiting a variant near the middle value.
-less than the number exhibiting a variant near the highest value.


Kamar is looking for his birth mother. Kamar knows that his blood type is AB and his father’s blood type is heterozygous A. What can Kamar assume about his mother’s blood type?(1 point)
-Kamar’s mother must be either AB or B because blood types AB is considered codominant.
-Kamar’s mother must be AB because blood type AB is inherited from one parent.
-Kamar’s mother must be O because the recessive allele allows for Kamar to get type A from his father.
-Kamar’s mother must be either A or O because blood type AB is considered incomplete dominant.


A statistician collects height data in inches for a school district. Which sample is most likely to produce a normal distribution?(1 point)
-Grade 10-12
Height Range 55 - 60 60 - 65 65 - 70 70 - 75
Frequency 4 9 8 4
-Grades 1-3
Height Range 30 - 35 35 - 40 40 - 45 45 - 50
Frequency 4 1 10 10
-Grades 7-9
Height Range 50 - 55 55 - 60 60 - 65 65 - 70
Frequency 11 5 6 3
-Grade 4-6
Height Range 45 - 50 50 - 55 55 - 60 60 - 65
Frequency 12 8 4 1


The different variants of a trait available to a gene are called(1 point)
-alleles.
-genotypes.
-polygenic traits.
-phenotypes.


A wolf populations’ undercoat thickness follows a normal distribution. Suppose climate change causes the winters to grow colder. Over many generations, the distribution of undercoat thickness in this population will likely(1 point)
-shift toward a thinner coat.
-shift toward a thicker coat.
-remain the same.
-no longer be normal.

HELPPPP PLEASE....
:)

Answers

1 is a: less than...middle value

2 is c: ab or b

3 is d: grade 10-12

4 is a: alleles

5 is a: ..... thicker coat

Explanation: just took this, these are the correct answers for MY quick check. could very well be different for yours. hope this helps though :)

The number of organisms exhibiting a phenotype variant near the lowest value is ; ( C ) Less than the number exhibiting a variant near the middle value.Kamara can assume that ; ( A ) Kamara mother must be either AB or B because blood types AB is considered codominant.The sample that is most likely to produce a normal distribution is ; ( A ) Grade 10-12,  Height Range 55 - 60 60 - 65 65 - 70 70 - 75 , Frequency 4 9 8 4.Various variants of a trait available to a gene are called ( A ) ; Alleles .The undercoat thickness in this population will likely ( B ); shift toward a thicker coat.

The wolves undercoat will grow towards been thicker in order to protect the wolves from extreme cold conditions posed by the winter and  this phenomena is called adaptation.

Blood types of offspring's are determined by the blood groups of both parents therefore if Kamara has a blood type AB his mother will mostly likely have either AB or B blood type.

Alleles are the different variants of a gene in living organisms but they are located at the same position on the chromosome.

Hence we can conclude that answers to the questions are as listed above.

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please answer all the three questions​

Answers

Answer:

1. Birds have feathers of different colours.

2. Woodpeckers have long beaks.

3. Sunbird is a non-migratory bird.

or

3. Sunbird is sedentary bird.

Explanation:

hope this helps and is right :)

p.s. i really need brainliest.


Students investigated body temperature in the class.
The bar chart shows the results.
Body temperature in °C
0 One student used the bar chart to calculate the mean body temperature of the class.
The student calculated the mean body temperature as 37.0 °C.
How did the student use the bar chart to calculate the mean?
(2 points)
00
7.
6
5

Answers

The bar graph that is essential to answer the question is attached with the answer:

Answer:

The correct answer is given as follows:

Explanation:

Mean is the average in a common or informal way. It can be calculated by Adding the total numbers up and divide them by the total number of values in the set.

In this case: 37 is the mean value that can be calculated by:

adding all the values: 36.7+36.8+36.9+37+37.1+37.2+37.3 = 259

Number of sets = 7

then mean = 259/7

= 37

Thus, the mean can be calculated by total value divided by the number of sets

Katie and her sister have entirely different features and traits. Katie has blonde hair and brown eyes, but her sister has red hair and blue eyes. What causes these variations in traits such as hair color,eye color,and height? A. Competition b. Offspring c.Alleles d. Fitness

Answers

Answer:

c.Alleles

Explanation:

Genes are the hereditable units that transmit the information needed to specify traits (such as hair or eyes color), from parents to offspring, generation to generation. Genes are arranged in sequence in the chromosomes. A chromosome might contain hundreds of thousands of genes.

Each chromosome carries specific genes that code for specific proteins that have specific functions in the organisms. Each chromosome carries information to synthesize different proteins needed to accomplish a certain function. But not all chromosomes carry the same gene sequences. Only homologous chromosomes carry information for the same trait, but even this information is not necessarily the same. They might have the same gene but in different alternatives.

Alleles are the different alternatives in which a gene might appear.  By the process of natural mutation, a gene might change into two or more alternative forms that are called alleles. These alternative forms codify for the same trait expressing different phenotypes.

In the exposed example, alleles are responsible for the different phenotypes expressed by the girls. The alternative forms of the genes -the alleles- that codify or hair color and for eyes color, express either red or blonde hair, and either blue or brown eyes.

The final genotype and phenotype depend on the gametes that merge to form the zygote, and hence the new organism.

What is true about the gibbous moon

Answers

Look at the other answer

Select ALL the correct descriptions that help to define luminosity.
A. How much energy is emitted per second

B. How much surface area the object has

C. The amount of brightness of an object

D. The color emitted by the start

Answers

The correct descriptions that help to define luminosity are How much energy is emitted per second, How much surface area the object has, and The amount of brightness of an object.

What is the energy content of luminosity?

An object's luminosity, which is the quantity of energy it emits over a predetermined period, is a measurement of its inherent brightness. Since it simply measures the object's power output, it can be expressed in units like Watts.

What factors affect luminosity?

A star's luminosity, or the total amount of energy it emits each second, is determined by two factors: The stellar photosphere's "Effective Temperature," T. the star's total surface area, which is influenced by its radius, R.

What three things have an impact on luminosity?

The size, temperature, and distance of a star are the three variables that determine how bright it seems to us on Earth. The brilliance of a star is measured by its magnitude.

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What will happen to the red blood cell in this environment?
Group of answer choices

The red blood cell will swell from absorbing salt molecules.

The size of the red blood cell will remain constant.

The red blood cell will swell at first and then shrink.

The red blood cell will shrink from losing water molecules.

Answers

Answer:

Explanation:

A The size of the red blood cell will remain constant. B The red blood cell will swell at first and then shrink.

The red blood cell in this environment is the red blood cell will swell from absorbing salt molecules. Thus, option A is correct.

What is the salt concentration of red blood cell?

The red blood cell has a lower salt concentration than the liquid which means that it has a higher water concentration than the liquid. By the process of osmosis, water will flow from the red blood cell to the liquid which would lead to the red blood cell shrinking in size.

Cellular respiration has used to create energy for cells. It works by burning glucose in the presence of oxygen. The result is an outburst of energy and [tex]CO2[/tex] as well as water. Red blood cells that are bathed in blood neither shrink nor swell and burst because the concentration of the surrounding blood is equal to the concentration inside the cytoplasm of the red blood cells. This means that the two solutions are isotonic.

Therefore, The red blood cell in this environment is the red blood cell will swell from absorbing salt molecules. Thus, option A is correct.

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what is segregation in biology​

Answers

Segregation describes how pairs of gene variants are separated into reproductive cells

Answer:

Segregation is the separation of allele pairs (different traits of the same gene) during meiosis so that they can transfer specifically to separate gametes.

Explanation:

hope this is helpful! have a wonderful day ! God Bless you and your family <3

HELP ASAP ILL MARK BRAINLIEST
Which choice gives the order of a chain of events that show cause and effect relationships that results from human activity?

A. increased carbon dioxide in the atmosphere; increased water vapor in the atmosphere; increase in severe storms; increase flooding

B. increased water vapor in the atmosphere; increase in severe storms; increased carbon dioxide in the atmosphere; increase flooding

C. increased water vapor in the atmosphere; increased carbon dioxide in the atmosphere; increase in severe storms; increase flooding

D. increased carbon dioxide in the atmosphere; increase flooding; increased water vapor in the atmosphere; increase in severe storms

Answers

Answer:

D

Explanation

carbon dioxide is enhanced by human activity as it icrease it leads to many consequences so B and C are canceled

increasing carbon dioxide does not increase the water vapor immediatly

so A is canceled

so the left answer will be D

The choice that provides the ordering of the chain of events should be option D where the carbon dioxide should be increased.

What is carbon dioxide?

It should be treated as colorless and nonflammable gas at the normal temperature and the pressure. Also it comprise of one carbon atom and 2 oxygen atoms. Here it should be enhanced by the human activity due to which the flooding should be increased, water vapor is also increased also the storms too.

Therefore, the option d is correct.

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Select all that apply. Head lice are tiny organisms that can be found on

the eyebrows.

the eyelashes.

the top of the head.

the lips.

the ears.

Answers

I think 1 and 3 but don’t count me

Answer:

1,2,3

Explanation:

Edg 2021

Which theory directly
contradicts the concept of
absolute zero?
A. Gravitational Theory
B. Kinetic Theory
C. Matter Theory

Answers

Kinetic energy because it can create heat which goes against the absolute zero.

A sample of matter experiences a decrease in average kinetic energy as it continues to cool. One would anticipate that the particles will eventually come to a complete stop. The temperature at which particles should theoretically stop moving is absolute zero. Thus, option B is correct.

What theory directly contradicts concept of absolute zero?

All molecules are predicted to have zero kinetic energy and, as a result, no molecular motion at absolute zero (273.15°C). Zero is a hypothetical value (it has never been reached).

Absolute zero signifies that there is no kinetic energy involved in random motion. A substance's atoms don't move relative to one another.

Therefore, Kinetic energy because it can create heat which goes against the absolute zero. A gas molecule's kinetic energy tends to zero when the temperature reaches absolute zero.

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Use the data table to complete the question
Visible light occurs along a continuum of different wavelengths. The datatable shows the wavelength in nanometers of four colors of visible light
Which color has the HIGHEST FREQUENCY?
Wavelength of Colors of Visible
Light In a Vacuum
Color Wavelength
(nanometers)
Red
700
Orange-Yellow
600
Green-Blue
500
Violet
400
A.Blue-Green
B.Red
C.Orange-Yellow
D.Violet

Answers

Answer:

A.Blue-Green

may be right answer

-_-

A carrier of a genetic disorder who does NOT show symptoms but who CAN pass on a disease to his or her offspring would have which of the following genotypes? *

A. BB
B. bb
C. Bb
D. there is not enough information to answer this question
which one^

Answers

C. The trait is recessive as the carrier doesn’t show the symptoms and has to be heterozygous to pass the trait.

Is meiosis sexual reproduction or asexual?

Answers

Answer:

Sexual reproduction

Answer:

Meiosis is sexual reproduction.

Explanation:

Meiosis only occurs in reproductive cells, as the goal is to create haploid gametes that will be used in fertilization. Meiosis is important to, but not the same as, sexual reproduction. Meiosis is necessary for sexual reproduction to occur, as it results in the formation of gametes (sperm and eggs).

MARK ME BRAINLIEST.

how many total atom are repsentanted in the formula caco3

Answers

The correct answer is 5

Explanation : this is because there is one atom of calcium, one atom of carbon, and three atoms of oxygen.

what is significance of crossing over during meiosis?

Answers

Crossing over is essential for the normal segregation of chromosomes during meiosis. Crossing over also accounts for genetic variation, because due to the swapping of genetic material during crossing over, the chromatids held together by the centromere are no longer identical

Answer:

A- a different combination of genes is provided to each gamete

Explanation:

Crossing over accounts for genetic variation, because due to the swapping of genetic material during crossing over, the chromatids held together by the centromere are no longer identical

I will mark branlist


What is the best description of the chromosomes by the end of metaphase of mitosis?


The chromosomes reach opposite sides of the cell and begin to be incorporated into two new nuclei.


The chromosome pairs collect in a line across the middle of the cell.


The chromosomes separate at the centromere and begin to move apart.


The chromosomes have coiled and become more compact.

Answers

Answer:

The chromosome pairs collect in a line across the middle of the cell.

Explaination: i have  a whole slide show i had to make for science i looked at that

Need help pls brainless to. Who ever helps

Answers

i can help you out.

this process does not require sunlight?​

Answers

The answer is cellular respiration. Cellular respiration does not require sunlight, photosynthesis does require sunlight.
The process that does not require sunlight is Chemosynthesis, which means it produces food (glucose) using chemicals.

Which best describes the way a sound wave is sent through the radio?

sound wave → radio wave
radio wave → sound wave
radio wave → sound wave → electrical signal → sound wave
sound wave → electrical signal → radio wave → sound wave

Answers

The answer is sound wave-electrical wave-radio wave

Sound waves propagate from the sound source. The sound through radio comes through the electrical signal, radio wave, and sound wave. Thus, option D is correct.

What is a sound wave?

A sound wave is an acoustic wave that travels through a medium through the disturbance of the particles in a longitudinal direction. A few examples are radio, whisper, rustling, etc.  

The sound waves in radio first get converted into the electrical signal that passes through the circuit of the radio that further gets transferred as radio waves.

These radio waves are the part of the electromagnetic spectrum that travels at a little less speed than light. The radio waves again get converted into sound waves as it leaves the system and reaches the ear of the organism.

Therefore, option D. sound wave → electrical signal → radio wave → sound wave is the correct order.

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Where are chromosomes found in a cell?​

Answers

Answer:

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA).

Explanation:

please help meeeeeeeeeeeee

Answers

Answer: H2O

Explanation:

The reactants are everything on the left of the arrow and the products are everything on the right of the arrow.

There is only one product on the right which is H2O.

Answer:

i do not remember this for the life of me and i was so good, i believe the answer is water would be a product, and the equation is balanced

Explanation:

What are proteins made of, and how many options are there for these building blocks?

Answers

Answer:

Amino Acids

Explanation:

They are building blocks for proteins.

What two types of cells are involved in immune response and have the job of creating a "memory" of exposed pathogens? *
a)A cells and B cells
b)T cells and A cells
c)T cells and B cells
d)red and white blood cells

Answers

Answer:

B  

Explanation:

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2a + b = 20 show your work A balloon occupies 175 cm at 25.0 C. What volume will it occupy at 42.5 C? FOR 5 POINTS AND BRAINLIEST...18x 4(9 5x) + 14PLEASE SIMPLIFY AND SHOW YOUR WORK! PLEASE HELP ME please help i have no clue please hurry (x + y) (x + y) x = (x + y) (x + y) 2 x = 2 x = 1 Maria just inherited $10,000. Her bank has a savings account that pays 4.1% interest per year. Some of her friends recommended a new mutual fund, which has been in business for three years. During its first year, the fund went up in value by 10%; during the second year, it went down by 22%; and during its third year, it went up by 12%. Maria is attracted by the mutual fund's potential for relatively high earnings but concerned by the possibility of actually losing some of her inheritance. The bank's rate is low, but it is insured by the federal government. Use decision theory to find the best investment. (Assume that the fund's past behavior predicts its future behavior). A + A =2,A + B =3,A + B 2 =??..only for geniuses Find the 7th term in the following sequence (n = 7)f(n) = 5 + 8(n-1) Also, for this question, state what a1 is (first term) and what you are doing to find each successive (next) term. .How do the following concept vocabulary words help the reader understand the reasons for Barringtons Irvings success? Use all these words in your answer.determination pursue accomplish achieve tackling purposeful please help like rn Was Brutus a Patriot or a Traitor? Essay What does 4.57x0.08 Lesson 5 Do Now: Why do countries fight wars? PLEASE HELP WILL GIVE BRAINLIEST Use characteristics of quadratic functions to graph = 1 2 x 2 2 + 1 a) Identify the axis of symmetry. ___________________ b) Find the coordinates of the vertex. ___________________ c) Graph the function using the table below. Plot at least five points. d) Identify the domain of the function. ___________________ e) Identify the range of the function. ___________________ Douglas works for a racing car team.The team is practising at a racing circuitThe length of the racing circuit is 4.8 kilometres.The team car takes 2 minutes to go once round the racing circuit.(a) Work out the average speed of the team car.Give your answer in kilometres per hour.(3)Write your answer in the box below.kilometres per hourShow your working clearly in theThe working box can be movedWorking Box(b) Use estimation to show a check of your answer.(1)Write your check in the box below. I need help due in a Hour PLZ HURRY You cannot use critical numbers and test intervals to solve quadratic andrational inequalities.TrueFalse Based on these political cartoons, how were Roosevelt and Johnson similar After Dalton's proposed atomic theory, several atomic models were developed. Which model was the first propose the existence ofsmall, dense nucleus? Please select the word from the list that best fits the definition an improved Portuguese ship that allowed exploration of the oceans