answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Viktor [21]
2 years ago
12

Describe your DNA model. Which part do the straws represent? The pushpins? The paper clips and the black dots you made with the

marker?
Biology
1 answer:
Fynjy0 [20]2 years ago
8 0
<h2>Answer 1 with Explanation</h2>

The DNA model represents the genetic code that defines all the characteristics of a living thing and it is made up molecules called nucleotides. Each nucleotide contains and represents a phosphate group, a nitrogen base, and a sugar group. Two long strands are formed by Nucleotides attached together to create a structure called double helix which looks like a ladder, the sides would be made up of sugar and phosphate molecules while the rungs would be the base. The straws represent the sugar-phosphate backbone which forms the structural framework of nucleic acids. It is composed of alternating sugar and phosphate groups.  

<h2>Answer 2 with Explanation</h2>

The push pins re-presence nitrogen-containing base is an essential molecule with a nitrogen atom having the chemical features of a field. The principal biological purpose of a nitrogenous base is to bond nucleic acids collectively. A pushpin owes its essential characteristics to a solitary couple of electrons of a nitrogen atom. It is assigned as the derivatives pair of parent compounds.

<h2>Answer 3 with Explanation</h2>

The paper clips represent ‘five prime’ and ‘three prime’ which indicate the number of carbons in the DNA’s sugar backbone. These two are the distinctive ends of the nucleic acids. The black dots represent the bonds of sugar and phosphate which make up the nucleotides and show the genetic code. These bonds have strong covalent bonds that keep the bonds attached together firmly.

You might be interested in
Which of the following best describes how a blood cell and skin cell have the exact same DNA sequence and yet look different and
den301095 [7]

Answer:

This question is incomplete as it lacks options, however, it will be answered BROADLY so the it can be understood enough to select the correct answer.

Please find the explanation below

Explanation:

Cells perform different functions and look differently because of the process of CELL DIFFERENTIATION. All cells arise from a single stem cell, which then gradually differentiates into different types of cells with different functions, as they divide.

At the molecular level, these different types of cells contain the same DNA sequence as rightly stated in the question. However, they look and perform differently because some of the genes are turned on while the others are turned off via the process of GENE EXPRESSION.

Therefore, a blood cell and skin cell possess exactly the same DNA sequence but look different and perform different functions because of CELL DIFFERENTIATION in which some genes on the DNA sequence are expressed and others are repressed. For example, in the blood cell; the genes coding for certain proteins found in blood are expressed while every other gene is silenced or inhibited. This allows those cells to perform only blood-related functions.

3 0
1 year ago
Select the three factors from the choices below that determine the size of the actual focal spot on the target anode.
Zarrin [17]

Answer: A focal spot in the x-ray setup is the area of the anode surface which receives the beam of electrons from the cathode. It is the apparent source of x-rays.

Below are some of the factors that affect its size.

Explanation:

Size of the focal spot depends on

* angle of the anode

Other prime factors that affect x-ray emission; under the control of the radiographer includes;

• Miliamperage-second (mAs)(tube current measurement)

• Kilovoltage (kVp) Controls both the quantity and quality of the x-ray beam with the speed and energy.

• Distance (d) - Related to tube design and construction.

• Tube housing

• Target material

• Filtration

• Voltage waveform

8 0
2 years ago
4,500 kilometers below the surface of the Earth, the pressure is estimated to be
Kitty [74]
Thank you for posting your question here at brainly. Below are the choices that can be found elsewhere:

<span>A) 1.4 million atmospheres
B) 2.0 million atmospheres
C) 2.8 million atmospheres
<span>D) 3.1 million atmospheres

I believed the answer would be C which is </span></span>2.8 million atmospheres. I hope it helps. 
7 0
2 years ago
To test how fertilizer affects aquatic animals, a student prepared four identical containers with water fleas. The student then
artcher [175]
The best answer is D..

It will help u
7 0
1 year ago
Read 2 more answers
Yasmine States that tapeworms are common parasites of goats. Walter claims that the relationship between a tapeworm and goat sho
dem82 [27]

Answer:D. tapeworms live inside a goats body in a close relationship the goat.

Explanation:

In parasitic relationships,the parasite lives on the host and benefits from the host while causing harm to the host .the host does not benefit.the parasites are usually in close relationship with their host as their food source are substances of the host organisms.

The parasite may live in the host , these are called Endo-parasites.

The parasite may live outside the host, these are called ecto-parasite. In this example, the tapeworm is an endo-parasite that lives in the digestive tract of the goat. It absorbs digested food in the intestine through it's body surface.

In predator and prey relationship, the predator usually has to hunt for the prey and feed on it. It may kill it first or may not

7 0
1 year ago
Other questions:
  • The diagram below shows a material being cycled between the living and nonliving environments.
    14·1 answer
  • The cross bridge cycle is a series of molecular events that occur after excitation of the sarcolemma. what is a cross bridge? vi
    8·1 answer
  • Which of the body's systems directs and coordinates the interrelated activities of the gastrointestinal tract? Which of the body
    13·1 answer
  • The Coriolis Effect is caused by Earth’s uneven distribution of heat AND ________________.
    14·1 answer
  • Which of the following is a scientific question the student might ask?
    14·1 answer
  • CDKs are important in the regulation of the cell cycle. They carry out their function by:
    8·1 answer
  • Maureen does not seem to take responsibility for her actions (e.g., always creating excuses for coming home past curfew and acti
    13·1 answer
  • The hydrophilic regions of a membrane protein are most likely to be found are
    13·1 answer
  • 3) In the 1990’s Florida Fish and Game wanted to control a population of lamprey that had been introduced into Lake Okeechobee b
    15·1 answer
  • A container on the counter labeled "ground beel" is not properly date marked. The cook tells the Person in charge (PIC) that it
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!