Answers
Answer:
There are 2 strands. The shape if of a double helix, but it reminds me of a twisted ladder.
Explanation:
Hope this helps!
DNA (Deoxyribonucleic Acid) is a molecule that contains the genetic instructions for all known living things' development, operation, growth, and reproduction. Two strands that are twisted together to create a double helix make up the DNA molecule.
What are the two strands of DNA composed of ?The two strands of DNA are composed of nucleotides, which are the substance that gives DNA its structure. A sugar molecule, a phosphate group, and a nitrogenous base make up each nucleotide. Adenine (A), thymine (T), cytosine (C), and guanine (G) are the nitrogenous bases found in DNA.
In DNA, the nitrogenous bases form hydrogen bonds that hold the two strands together. Both adenine (A) and thymine (T) couple naturally with cytosine (C) and guanine (G), respectively. Complementary base pairing is the name given to this base pairing.
For DNA to serve as a carrier of genetic information, its double helix shape is necessary. The genetic code, which contains instructions for how living things develop, grow, and operate, is made up of the nucleotide sequence along the DNA strands.
The mechanism through which DNA duplicates itself, including the two strands of DNA, is also very important. The two DNA strands split apart during DNA replication, and each strand acts as a template for the creation of a new complimentary strand. This procedure guarantees that the genetic material present in the original cell is replicated exactly in each subsequent cell.
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Related Questions
Draw an illustration that explains the procedure described in Technology on the Case. Then, using your illustration and evidence from the text, construct an explanation for how this procedure prevents the transmission of LHON from one generation to the next.
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No links please help me
Answers
Middle Layer Top: stratum lucidum
Middle Layer Bottom: stratum granulosum
Second Layer: stratum spinosum
Bottom of Second Layer: stratum basale
Last Layer: Dermis
A chemical bond resulting from the sharing of electrons between two elements with very similar electronegativity are indicative of ____ bonds. Methane is a good example of this type of bond.
Group of answer choices
ionic
hydrogen
polar covalent
nonpolar covalent
Answers
Answer:
non-polar covalent
Explanation:
the electrons are shared so its a non-polar covalent bond
list two organelles present in a plant cells put absent in an animal cell
Answers
Answer:
cell wall, chloroplasts and other specialized plastids, and a large central vacuole
Explanation:
One summer, a sinkhole opened up in a swamp and all of the water in the swamp dried up. The next summer, there was an extraordinary amount of rain, and the dry basin that had been the swamp filled with water. The environmental change that occurred in the second year acted to
A. decrease the stability of the swamp ecosystem.
B. slow climate change in the swamp ecosystem.
C. increase the stability of the swamp ecosystem.
D. speed up climate change in the swamp ecosystem.
Answers
During development, a doctor discovers that a fetus is not receiving enough oxygen. Which structure should the doctor examine further to find a source of the problem?
A. Umbilical cord
B. Amniotic sac
C. Uterus
D. Placenta
Answers
Answer:
The placenta is responsible for supplying oxygen and nutrients to the growing Fetus.
You are studying a protein that you think functions as a protease. You know the genetic code and amino acid sequence for the protein and you hypothesize that a serine is critical to the enzyme's function. Describe an experiment or set of experiments that would test your hypothesis.
Answers
It is possible to remove serine by targeting mutagenesis and then observe how this modification changes the function of the protein in the cell. Serine is often a target for phosphorylation.
What is serine?Serine is one fundamental amino acid, i.e., a building block of biomolecules called proteins.
Serine is often a target for posttranslational modifications, especially protein phosphorylation.
In a given cell, serine phosphorylation may activate or deactivate specific signaling pathways.
In this case, it is possible to identify other serine proteases by sequence homo-logy using the BLAST bioinformatic tool.
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How are fossils used to interpret Earth's past physical and biological history?
Answers
What happens to the number of carbon atoms in the carbon chain molecules as they go through the Krebs cycle
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All the six number of carbon atoms in the carbon chain molecules as they go through the Krebs Cycle.
What is Krebs Cycle?The Krebs cycle, otherwise called the citrus extract cycle or the Krebs cycle, is one of the main response successions in natural chemistry.
Not exclusively is this series of responses liable for the vast majority of the energy needs in complex creatures, the particles that are delivered in these responses can be utilized as building blocks for an enormous number of significant cycles, including the combination of unsaturated fats, steroids, cholesterol, amino acids for building proteins, and the purines and pyrimidines utilized in the blend of DNA.
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What is the energy role of a clown fish
Answers
glucose is the answer to the question
What is the main difference between cell division in plants animals
Answers
Answer: The key difference between plant and animal cell division is that plant cells form the cell plate in between the two daughter cells in mitosis, whereas the cell membrane forms the cleavage furrow in between the two daughter cells in animal cells.
Hope this helps!
Answer:
The key difference between plant and animal cell division is that plant cells form the cell plate in between the two daughter cells in mitosis, whereas the cell membrane forms the cleavage furrow in between the two daughter cells in animal cells.
Explanation:
YA . Stress and anxiety of this factor:which organs of the body are affected ?
Answers
Answer:
all of them in my opinion
Explanation:
I'm not 100% sure on all the "scientific" answer. But it effects all of my organs :|
Answer:
Stress affects all systems of the body including the musculoskeletal, respiratory, cardiovascular, endocrine, gastrointestinal, nervous, and reproductive systems.
Explanation:
have a great day
What does the DNA shape remind you of?
How many strands do you see?
Answers
Answer:
The shape is a double helix, but it's helpful to think of it like a twisted ladder. Here, there are two strands. A strand is the line of circles you see that the lines connect to.
Hope this helps!!
Brefly explain Endogenous antigen & examples & autoantigen
Answers
Exogenous antigens refer to the antigens that enter the body of the organism from the outside while endogenous antigens refer to the antigens produced from within the cell as a part of normal cell metabolism or when the cell is infected by bacteria or viruses.
Examples
viral proteins produced during viral replication;
proteins produced by intracellular bacteria such as Rickettsias and Chlamydias during their replication;
proteins that have escaped into the cytosol from the phagosome of phagocytes such as antigen-presenting cells;
describe the endosymbiont theory
Answers
Answer:
The Endosymbiotic Theory states that the mitochondria and chloroplast in eukaryotic cells were once aerobic bacteria (prokaryote) that were ingested by a large anaerobic bacteria (prokaryote). This theory explains the origin of eukaryotic cells.
Explanation:
Water Vapor in the atmosphere ___________ to form clouds.
Answers
Answer:
The answer is condensation
Explanation:
Condensation is the process by which water vapor in the air is changed into liquid water. Condensation is very important for the water cycle because it is responsible for the formation of clouds.
Hope this helps mark brainliest please :)
HELP ! 50 POINTS !!
Which of the following statements correctly matches a cell part with its function?
A). The cell membrane packages lipids for export while the mitochondria modifies
and packages proteins.
B). The mitochondria perform photosynthesis while the chloroplasts perform
cellular respiration.
C). The nucleus stores genetic information while the Golgi apparatus sorts and
packages products for distribution.
D). The nucleus produces energy while the ribosomes direct the activities of the
cell.
Answers
C
The "Nucleus" contains the genetic information of the cell in the form of deoxyribonucleic acid (DNA) or chromosomes and thus, controls cell growth and multiplication. It is also the site of DNA replication (formation of an identical copy of DNA).
While the "Golgi apparatus", or Golgi complex, functions as a factory in which proteins received from the ER are further processed and sorted for transport to their eventual destinations: lysosomes, the plasma membrane, or secretion.
Give two examples of integral membrane proteins I'm plant cell
Answers
Answer:
Examples of type I membrane proteins include the histocompatibility antigens, glycophorin and membrane
immunoglobulin. Examples of type II
membrane proteins include the transferrin receptor, the asialoglycoprotein receptor, and many ecto-enzymes and glycosyl transferases.
How does a mountain affect weather?
Answers
Answer:
Mountains have an impact on climate because they block wind and get more rain than low-lying areas. As air is driven over higher ground, it cools, condensing moisture and falling as rain. The higher above sea level an area is, the colder it is.
Answer:
Mountains can have a significant effect on the amount of rainfall. ... The further up the mountain the colder the temperature. Then, when the air travels back down the mountain it gets warmer and drier, because the moisture in the air dried out during the rise up the mountain. This area gets less rain as a result.
Define homeostasis and its adaptive advantage.
Answers
hope that helped :)
1 - The visible differences between male and ........... that appear during the life are called ........... ............
2. During the breeding period, the male and female have attitudes and perform actions which together constitute the reproductive ................. This latter is translated by a change of .............. in fish, ............... in frog, and ............. in rooster.
3 - The partners, approach often leads to a .............. This approach is realized by means of visual, olfactory or ................ communication.
4. Certain .............. animals do not mate, yet their reproduction is ensured. Their eggs are released into the ................ and covered by .............. and .................. occurs which results in the formation of eggs.
Answers
Explanation:
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Identify the macromolecules in the image
Answers
Answer:
there is no image here you have only posted the question and not the attachment that is needed to answer
Forests are filled with trees, so they are also known as ______. woodlands wood conservatories tree conservations tree farms
Answers
Answer:
woodlands
Explanation:
i did a quiz on this and i got a 100
Answer:
Woodlands
Explanation:
I did this quiz a few days ago and got 100%
Observation of the development of embryos in sea stars shows the mesoderm forming pouches bulging from the archenteron to form the coelom. From this observation, you can predict that (use the Photo below for the answer choices)
Answers
Answer:
A. the cleavage of the embryo is radial
Explanation:
The sea star is considered radial symmetry in its adult life.
Question 2 of 5
What is another name for non-traditional sports?
A. Alternative
B. Foreign
C. Team
D. Random
Answers
another name for traditional sports is alternative sports
The principal source of air pollution from volcanoes is
Answers
Answer:
locally sulfur dioxide gas
Explanation:
these gases can come from Lava flows as well as a volcano that erupts violently
Answer: Ash
Explanation:
took on ed
Which is the following is true about the properties of the mantle?
1)The mantle is hotter the core.
2)The mantle contains two different layers.
3)There are rock samples collected from the mantle.
4)The mantle produces magnetic fields.
Answers
Answer:
the answer is number 2. the mantle contains two different layers
Explanation:
The core is way hotter then any other layer.
The core produces magnetic fields.
No one would be able to come back alive for a rock sample from the mantle.
Help me please I need help
Earth and space
Answers
Answer:
I think the answer will be carbonation
so it's d
Answer:
The Answer is D Carbonation
Carbonation is the chemical reaction of carbon dioxide to give carbonates, bicarbonates, and carbonic acid.
Carbonation is the process by which rainwater mixes with carbon dioxide in the air to form carbonic acid when this mineral reacts with rocks such as limestone it breaks down causing caverns.
brainliest please
Explain what would be the effect of having stratified epithelium in the alveoli of the respiratory system?
Answers
The alveoli needs of the epithelium for the gaseous exchange and stratified squamous epithelium are formed of multiple layers the difficulty in a gaseous exchange
If alveolar tissue were manufactured of stratified epithelium rather than simple squamous epithelium, oxygen diffusion would be reduced.
What is stratified epithelium?A stratified epithelium is a type of epithelial tissue made up of multiple layers of epithelial cells.
The only layer in contact with the basal lamina is the basal layer. This layer also undergoes mitotic division, resulting in cells in the upper layers.
Depending on their origin, the primary functions of the respiratory epithelium are to moisten, safeguard the airway tract from harmful microorganisms, infections, and tissue injury, and facilitate gas exchange.
Oxygen diffusion would be reduced if alveolar tissue were made of stratified epithelium rather than simple squamous epithelium.
Because of the multiple cell layers, oxygen would have to travel a greater distance to diffuse from the alveoli.
Thus, these can be the effect of having stratified epithelium in the alveoli of the respiratory system.
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plez help me .give the answe
Answers
Answer:
Sorry for the delay, they are so many questions and it took me a while