Một phân tử ADN có tổng số Nu = 2000, A = 600. Chọn đáp án đúng:
A. T = 700
B. G = X = 300
C. G = X = 400
D. A = T = 500

Answers

Answer 1

Answer:

C

Explanation:


Related Questions

One of the following statements is correct about glycolysis:

A.Net gain of only 2 ATP.
B.Glycolysis in fermentation reaction requires more oxygen than glycolysis in aerobic respiration
C.Carbon dioxide is used during glycolysis to form ATP.
D.Only animals can carry on glycolysis.

Answers

Answer:

A.

Explanation:

Glycolysis produces 4 ATP molecules in total, however 2 ATP molecules are used to convert a glucose molecule into a new 6 carbon compound with 2 phosphates attached to it. So, the net yield of ATP is 2 molecules.

Answer:

A net gain of only 2 ATP

Explanation:

In wolves, gray coat color (G) is dominant to black (g) and brown eyes (B) are dominant to blue (b). The genes that control these traits are located on different chromosomes. The alpha male of the pack has the dominant phenotype for both traits and is heterozygous for both traits. The alpha female has brown eyes and a black coat; she is heterozygous for eye color. Which option represents gametes that would be made by the alpha female

Answers

The combination of gametes that will be produced by the Alpha female is Bg, Bg, bg and bg.

According to this question, two genes coding for eye color and coat color in wolves are involved. Gray coat color (G) is dominant to black coat color (g) while brown eyes (B) are dominant to blue eyes (b).

The alpha female of the pack is said to have a brown eyes and a black coat (gg) but she is heterozygous for eye color (Bb). This means that she posseses the following genotype: Bbgg.

According to Mendel in his law of independent assortment, alleles of a gene will segregate into gametes independently of one another.

This means that the alpha female with genotype (Bbgg) will segregate into the following combinations of gametes: Bg, Bg, bg and bg.

Learn more about gamete formation at: https://brainly.com/question/11523490?referrer=searchResults

PLSSS HELP! IF CORRECT, WILL MARK BRAINLIEST


Following the fusion of an egg cell and sperm cell, the resulting diploid cell divides by mitosis to create two new daughter cells. Each daughter cell contains pairs of chromosomes, with one set inherited from each parent.


Which of the following best describes the pairs of chromosomes that are present in each newly formed daughter cell?


Choose 1 answer:


A) The pairs are homologous chromosomes that have the same set of genes, but likely different variations of those genes.


B) The pairs are non-homologous chromosomes that contain different sets of genes.


C) The pairs are homologous chromosomes that have identical copies of every gene.

Answers

Answer: A

i have no idea why

The pairs are homologous chromosomes that have the same set of genes, but likely different variations of those genes. The correct option is A.

What are homologous chromosomes?

Among a pair of chromosomes with the very same gene sequence, loci, chromosomal size, and centromere location is referred to as a homologous chromosome.

One paternal and one maternal chromosome make up a homologous pair. In humans, the nucleus of a somatic cell contains 46 chromosomes.

Homologous chromosomes differ from sister chromatids because they are not identical and do not emanates from the same organism.

Sister chromatids are identical, side-by-side duplicates of each other that form as a result of DNA replication.

Homologous chromosomes do not pair together during mitosis. Homologous chromosomes line up end-to-end in mitosis so that when the cells divide, each daughter cell receives a sister chromatid from both members of the homologous pair.

Thus, the correct option is A.

For more details regarding homologous chromosomes, visit:

https://brainly.com/question/13242901

#SPJ5

What makes social animals unique?

Answers

Answer:

In these species, members of the group depend completely on one another. Different animals within the group have different jobs. Therefore, group members must work together for the good of all. Most species of ants and bees are highly social animals.

Explanation:

Which of the following is not a characteristic of lakes? A) deeper than ponds B) lack of waves C) found in mountainous regions D) larger than ponds E) fed by rivers

Answers

Answer: E - Fed by rivers

PLS HELPPPPP


How can using a dam as a source of freshwater also harm wildlife?
A. Dams help control floodwaters.
B. Dams provide drinking water.
C. Dams displace existing habitats.
Ο Ο
D. Dams provide water recreation.

Answers

Answer:

c

Explanation:

because its the only one that would be hurting wild life.

Using a dam as a source of freshwater can harm wildlife by displacing existing habitats. Therefore, option (C) is correct.

What are the negative impacts of dams?

Dams often require the creation of reservoirs, which can submerge large areas of land and alter the natural flow of rivers and streams. This can lead to the loss of important habitats for fish, mammals, and other wildlife that rely on rivers and streams for food, shelter, and reproduction.

In addition, changes in water temperature, dissolved oxygen levels, and water flow can negatively impact aquatic ecosystems downstream from the dam.

These impacts can be mitigated through careful planning and management, such as the creation of fish ladders and other structures to help fish navigate past the dam, and the release of water at appropriate times to mimic natural flow patterns.

Learn more about dams, here:

https://brainly.com/question/31139318

#SPJ5

How is Wallace's view scientific

Answers

Wallace argues that changes in species are not a result of specific individual needs of organisms to adapt to their environment. Rather, "he states that some qualities of an individual may allow it to outlive another individual without those qualities."

RR is described as what genotype

Answers

Answer:whenever the allele pair RR of a gene is present the colour of flowers

would always be red.

Explanation:

True or False: A positive ion and a negative ion will repel each other.

Answers

Answer:

FALSE     is correct

Explanation: Questions protected!

What of the following best explains the pace and timing of evolutionary change?

A: Evolutionary change quickly and constantly occurs throughout time.

B: The pace of evolutionary change has slowed down over time, and it only rarely occurs now.

C: Periods during which evolution occurred were always preceded by a catastrophe.

D: Long periods of stability were punctuated with periods of evolutionary change.

Answers

Answer:

B: The pace of evolutionary change has slowed down over time, and it only rarely occurs now.

Explanation:

What of the following best explains the pace and timing of evolutionary change The pace of evolutionary change has slowed down over time, and it only rarely occurs now.

Answer:

D: Long periods of stability were punctuated with periods of evolutionary change.

Explanation:

Which weather conditions will most likely cause heavy rain and cooler temperatures? (A. Cold front) (B. Seabreeze) (c. warm front) (D. Land breeze)

Answers

Answer:

a. cold front

Explanation:

Many fronts cause weather events such as rain, thunderstorms, gusty winds, and tornadoes. At a cold front, there may be dramatic thunderstorms.

hope this helps

Answer is a that’s what it usually is

PLEASE HELP
Which correctly defines homologous structures?

A
Anatomically similar structures found in multiple organisms that may or may not share a similar function but result from convergent evolution.
B
Anatomically similar structures found in multiple organisms that may or may not share a similar function but result from divergent evolution.
C
Anatomically different structures found in multiple organisms that share a similar function and result from convergent evolution.
D
Anatomically different structures found in multiple organisms that share a similar function and result from divergent evolution.

Answers

Answer: d

Explanation:

What is the phase shown below?

Prophase
Metaphase
Telophase
Anaphase

Answers

Answer:

Telophase

Explanation:

Telophase is the answerrr

The active ingredient in which of the following drugs mimics a natural neurotransmitter?

Answers

Answer:

b. marijuana is correct

Explanation:

What is the role of knowing the Earth's history to mankind?​

Answers

Answer:

Earth history enables us to understand those changes which no human being has ever seen (or if they have, they didn't record it) and to relate them to modern changes. Such events include: The rise and extinction of the dinosaurs. The formation of the Grand Canyon.

Explanation:

Answer:

Earth history enables us to understand those changes which no human being has ever seen (or if they have, they didn't record it) and to relate them to modern changes. Such events include: The rise and extinction of the dinosaurs. The formation of the Grand Canyon.

hope it's helpful

thank you

Individual A, who is suffering from cardiovascular disease consume a set of briyani rice
daily for a long period of time.
Discuss the effects of the diet to his health.
[10 markah/ marks]

Answers

Answer:

Eating whole grains like brown basmati rice is linked to a lower risk of heart disease. Whole grains help to reduce blood cholesterol levels.

https://www.webmd.com/diet/health-benefits-basmati-rice#1

Human cells have _____ sets of DNA in each cell.


A) 2

B) 4

C) 1

D) 8

Answers

Answer:

See answer below.

Answer is verified.

Explanation:

Human cells have two sets of DNA in each cell.

And a total of 46 chromosomes in each cell.

Please mark Brainliest.

Thanks!

Human cells have two sets of DNA in each cell. Thus, the correct option is A.

What is DNA?

DNA stands for Deoxyribonucleic acid. It is considered the genetic material of most organisms. It consists of base pairs like adenine, thymine, guanine, and cytosine.

Human cells have two sets of DNA in each cell, one came from the paternal side while the other came from the maternal side.

Therefore, it is well described above.

To learn more about DNA, refer to the link:

https://brainly.com/question/16099437

#SPJ1

I need a complete sentence as soon as possible

Answers

I am going to the grocery store today.

HELP ME PLEASE I WILL GIVE BRAINLIEST

Answers

Answer:

The answer is C, from hydrosphere to atmosphere

Answer:

C

Explanation:

hope it helps

would appreciate brainly

Share three ways you would take to reduce water pollution.

Answers

1. Pick up trash
2. Don’t use fertilizer
3. Save water by using less showering, not letting water run while brushing teeth

Articulations are classified by their function or structure. Which of the following is an example of functional classification?

Answers

Answer:

d. Synarthrotic joints  

Explanation:  is correct for the choices offered.

The movement of tectonic plates in two locations is described below:

Location A: Tectonic plates collide and one plate moves over the other while the other plate is pushed deep into the mantle
Location B: Tectonic plates slide past each other
PLS HELP I WILL GIVE BRAIBLIEST AND 100 POINTS
Which statement is most likely correct?

Volcanic eruptions may occur in both locations.
There is no chance of earthquakes in the two locations.
Mountains may form in Location B but not in Location A.
Subduction happens in Location A but not in Location B.

Answers

Explanation:

volcanic eruption may occur in both location

Answer: D

Explanation subduction happens when one plate is ontop of another and pushes it into the matel

hope this helps :)

Many scientists consider genetic engineering to be simply an efficient method of selective breeding. Is it?

Answers

Yes…yes it is in fact

Which layer in the blood vessel is composed of smooth muscle, allowing it to dilate or constrict?

Tunica intima
*Tunica media
Tunica externa
Endothelium

Answers

Answer:

b. Tunica media

Explanation:is correct

Answer:

B. Tunica media

Explanation:

could someone help pls (pic with question attached)

Answers

my reasoning for this is coo and i

Look at the diagram. Name organ 4.

Answers

that’s the liver, The liver is an organ about the size of a football. It sits just under your rib cage on the right side of your abdomen. The liver is essential for digesting food and ridding your body of toxic substances

Answer:

That's the liver

Explanation:

Just look up "Liver Diagram"

Which group tells the three unifying characteristics of chordates?

Answers

Answer:

As chordates, all vertebrates have a similar anatomy and morphology with the same qualifying characteristics: a notochord, a dorsal hollow nerve cord, pharyngeal slits.

Have a good day

Answer:

Notochord, gill slits, and dorsal nerve cord.

Explanation:

Just took the k-12 test and got it right!

Does sugar free red bull have energy for cellular respiration and if so what kind?

Answers

Answer:  yes my man

Explanation:

Answer:

Red Bull Zero and Red Bull Sugarfree contain the same main ingredients – caffeine, taurine and some B-group vitamins. Both are made without sugar, instead using different low calorie sweeteners.

Explanation:

Environment: Polluted Forest Moths Released G1 G2 G3 G4 G5 Typica 125 88 83 76 29 Carbonaria 510 735 885 1042 1406 Total 635 823 968 1118 1435 Phenotype Frequency Color Initial Frequency Frequency G5 Typica Light 9 Carbonaria Dark Allele Frequency Allele Initial Allele Frequency G5 Allele Frequency q d p D Genotype Frequency Moths Genotype Color Moths Released Initial Frequency Frequency G5 Number of Moths G5 q2 Typica dd Light 2pq Carbonaria Dd Dark p2 Carbonaria DD Dark

Answers

The recessive allele frequency decreased (q = 0.14) and the dominant one increased (p = 0.86). Genotypic frequencies followed this tendency too (q² =0.02, 2pq = 0.24 and p² = 0.74). The Carbonaria phenotype increased to 0.98, while Typica showed a frequency of 0.02.  

------------------------------------------

Available data:

Some moths were released in the forest (N=1000). 250 were white, and 750 were black.

The color is defined by a single diallelic gene. The dominant allele -D- codes for black color (carbonaria), while the recessive allele -d- codes for white (Typica).

These individuals produced five new generations since they were released, G1, G2, G3, G4, G5.

                     

                     Moths realesed         G1          G2         G3         G4         G5        

Typica                     250                  125         88          83          76          29

Carbonaria             750                   510         735       885      1042      1406

Total                       1000                  635        823        968      1118       1435

Phenotype frequencies

                       Color             Initial Frequency               G5 Frequency                      

 

Typica             white                       0.25                                                

Carbonaria      Black                       0.75                                                

Allele Frequencies

                         Allele        Initial Allele Frequency     G5 Allele Frequency        

q                           d                            0.5                                                      

p                          D                            0.5                                                        

Genotype Frequency

        Moths   Genotype Color  Released  Initi.Freq.   G5 Freq.   Nº F5 moths

q²      Typica        dd       White      250           0.25                                        

2pq  Carbon.      Dd       Black       500           0.50                                        

p²     Carbon.      DD       Black       250           0.25                                        

This information is guiding you to know how to calculate frequencies and total numbers. Information about released individuals is an example of how you need to proceed.

Firts, we will assume that this population is under Hardy-Weinberg equilibrium. So let us review some theoretical framework.

The allelic frequencies in a locus ⇒ p and q dominant and  

                                                                               recessive alleles.

The genotypic frequencies after one generation are (H0m0zyg0us dominant), 2pq (Heterozyg0us), (H0m0zyg0us recessive).

If a populations is in H-W equilibrium, it will get the same allelic frequencies generation after generation.  

The sum of allelic frequencies equals 1 ⇒ p + q = 1.

The sum of genotypic frequencies equals 1 ⇒ p² + 2pq + q² = 1

Now let us analyze the problem.

We need to get information on G5 generation. We will do it step by step.

1) Phenotype frequencies

To get the Phenotype frequencies, we just need to divide the number of individuals with each phenotype by the total number of individuals in this generation. So,

Total number of individuals in G5  →  1435 White = Typica = 29 individuals Black = Carbonaria = 1406 individuals

F(Typica) = 29 / 1435 = 0.02  

F(Carbonaria) = 1406 / 1435 = 0.979 ≅ 0.98    

2) Allelic Frequencies

We can use the phenotypic frequencies to get the allelic frequencies.

Remember that carbonaria (black) moths include h0m0zyg0us dominant (DD) and heter0zyg0us (Dd) individuals. So we can not get the allelic frequencies from this data.

We can only use the allelic frequency of Typica (White) individuals. Typica phenotypic frequency only includes h0m0zyg0us recessive individuals, dd.

We know that,

H0m0zyg0us recessive genotype  →  dd

Genotypic frequency →  F(dd) → Represented as q²            

F(Typica) = F(dd) = = 0.02

Recessive allele → d

Recessive allelic frequency →  f(d) → Represented as q

f(d) = q = ??

q² = 0.02

q = √ 0.02

q = 0.1414 ≅ 0.14

0.14 is the recessive allelic frequency. Now we should calculate the dominant allelic frequency. To do this, we will clear the following formula,

p + q = 1

p + 0.14 = 1

p = 1 - 0.14

p = 0.86

So, now we also know that

f(D) = p = 0.86

f(d) = q = 0.14

3) Genotypic Frequencies

Now, we need to get the genotypic frequencies, F(xx)

⇒ F(DD) = p² = 0.86² = 0.7396 ≅ 0.74

F(Dd) = 2pq = 2 x 0.86 x 0.14 = 0.24

F(dd) = q² = 0.14² = 0.0196 ≅ 0.02    

4) Number of individuals

Finally, we need to tell the number of individuals with each genotype. We just need to multiply each frequency by the total number of individuals in G5.

F(DD) = p² = 0.74

F(Dd) = 2pq = 0.24

F(dd) = q² = 0.02    

Total number of individuals = 1435

⇒ DD Black -Carbonaria- individuals → 0.74 x 1435 = 1,061.9 ≅ 1062

⇒ Dd Black -Carbonaria- individuals → 0.24 x 1435 = 344.4 ≅ 344

⇒ dd White -Typica- individuals → 0.02 x 1435 = 28.7 ≅ 29

From this results, we can conclude that the moths population is not in H-W equilibrium, because their allelic and genotypic frequencies changed through generations.

It seems that Natural selection is favoring the dominant phenotype by increasing the frequency of the dominant allele over the recessive one. Probably directional selection is acting on this population.

----------------------------------

Related link: brainly.com/question/12724120?referrer=searchResults                          

What is conditioning?

Answers

Answer:

conditioning, in physiology, a behavioral process whereby a response becomes more frequent or more predictable in a given environment as a result of reinforcement, with reinforcement typically being a stimulus or reward for a desired response.

Explanation:

Other Questions
Explain how the surrounding geographic features affect the climate of Cantbria. What is ATP called after it loses its 3rd phosphate group? pls help fast brainlest to enyone who helps Because is to since ...as... and is to How was Antigone empathetic? the shown bellow question answer PLEASE HELP MEEEE!!!!!!!!! tim gtri nguyen cua x de bthuc B=x+2/can(x) - 1 Why is hypertension considered a "silent killer"? Mr. Pontellier returned to his wife with the information that Raoul had a high fever and needed looking after, then, he lit a cigar and went and sat near the open door to smoke it. Mrs. Pontellier was quite sure Raoul had no fever. He had gone to bed perfectly well, she said, and nothing had ailed him all day. Mr. Pontellier was too well acquainted with fever symptoms to be mistaken, but he assured her the child was consuming at that moment in the next room. He reproached his wife with her inattention, her habitual neglect of the children. If it was not a mother's place to look after children, whose on earth was it? He himself had his hands full with his brokerage business, and he could not be in two places at once; making a living for his family on the street, and staying at home to see that no harm befell them. He talked in a monotonous, insistent way. Mrs. Pontellier sprang out of bed and went into the next room, but she soon came back and sat on the edge of the bed, leaning her head down on the pillow. She said nothing and refused to answer her husband when he questioned her. When his cigar was smoked out he went to bed, and in half a minute he was fast asleep. Mrs. Pontellier was by that time thoroughly awake. She began to cry a little and wiped her eyes on the sleeve of her peignoir. Blowing out the candle, which her husband had left burning, she slipped her bare feet into a pair of satin mules at the foot of the bed and went out on the porch, where she sat down in the wicker chair and began to rock gently to and fro.Select the correct answer.What is the best objective summary of the passage?A. A husband and wife argue over who should care for a sick child. The husband insists that he is too busy with business and accuses her of being a bad mother. She bursts into tears and leaves the house.B. A husband and wife argue over who loves their sick child more, and they end up not speaking to each other. The husband smokes a cigar in bed while the wife sits on the porch and cries.C. A husband tells his wife that their child is sick, but she insists that he is not. She complains that her husband's cigar smoke is making her sick and goes out to the porch where she sits and cries.D. A husband and wife argue over whether their child is sick, and the husband accuses his wife of neglecting their children. The argument leaves the wife tearful and pensive. Which numbers are solutions to the equation 30=x2? Which could NOT be in a nonfictional story?A) dancing cupsB) laughing childrenC) a huge crowd of peopleD) a tornado Johnny's home is m miles from school. Johnny runs to school at a speed of 8 mph and then walks home from school at half that speed. Suppose it take johnny 15 longer to walk to home than to run to school. Write an equation that shows this relationship. A researcher wants to estimate the likelihood that the baseball player will hit 2 home runs in a single game, given that the player hits a home run once in every 13 times at bat. Which type of study is most suitable for data collection in this situation?A. experimentalB. censusC. surveyD. simulation True or False: people congregate in lowland areas How do we meet other cultures? Which of the following would be the best way to begin the body of a letter ofinquiry?A. This is your lucky day - you get to look at my award-winningrsum! I'd love to work in your company, and I would appreciatemore information.B. It would be great if you could send me more information regardingjob openings in your company. I am available to start anytime andwould really love to work with you.C. Yo, homie, I need the 411 about that job opening you got.D. I have researched your company's product and work philosophy,and I am interested in possible employment opportunities. I amincluding my rsum for review and would appreciate anyinformation you are able to provide. pls help ill give brainliest Functions (A or B) then the rest you have to type it out stanza poem with ABA rhyme scheme with 6 haiku's