DNA is essentially a storage molecule. It contains all of the instructions a cell needs to sustain itself. These instructions are found within genes, which are sections of DNA made up of specific sequences of nucleotides. In order to be implemented, the instructions contained within genes must be expressed, or copied into a form that can be used by cells to produce the proteins needed to support life.
The instructions stored within DNA are read and processed by a cell in two steps: transcription and translation. Each of these steps is a separate biochemical process involving multiple molecules. During transcription, a portion of the cell's DNA serves as a template for creation of an RNA molecule. (RNA, or ribonucleic acid, is chemically similar to DNA, except for three main differences described later on in this concept page.) In some cases, the newly created RNA molecule is itself a finished product, and it serves an important function within the cell. In other cases, the RNA molecule carries messages from the DNA to other parts of the cell for processing. Most often, this information is used to manufacture proteins. The specific type of RNA that carries the information stored in DNA to other areas of the cell is called messenger RNA, or mRNA.
How does transcription proceed?
Transcription begins when an enzyme called RNA polymerase attaches to the DNA template strand and begins assembling a new chain of nucleotides to produce a complementary RNA strand. There are multiple types of types of RNA. In eukaryotes, there are multiple types of RNA polymerase which make the various types of RNA. In prokaryotes, a single RNA polymerase makes all types of RNA. Generally speaking, polymerases are large enzymes that work together with a number of other specialized cell proteins. These cell proteins, called transcription factors, help determine which DNA sequences should be transcribed and precisely when the transcription process should occur.
HURRY IM ON TIMER
Which statement describes the blood type of a person with the alleles IAi?
It is type AB because I and i are codominant.
It is type AB because A and i are codominant.
It is type A because i is dominant and A is recessive.
It is type A because A is dominant and i is recessive.
Answer:
C
Explanation:
Which of the following is a product of the photosynthesis reaction? Please help
Explanation:
Where is option? Show option
Once blood tonicity is negatively impacted, can the consequences be reversed?
Answer:
No.
Explanation:
Once blood tonicity is negatively impacted, the consequences can't be reversed because this tonicity permanently damaged the cell. For example, in hypotonic solution, If the water continues to move into the cell due to high solute concentration, it can damaged the cell membrane, the cell bursts and dies. But it can be reversed if the cell loses its water and become shrink in hypertonic solution and regain its original size by normalizing the water level.
Energy is converted from glucose, in the presence of oxygen, into numerous ATP molecules during
Answer:
Cellular respiration
Explanation:
the following in NOT a component of a prokaryotic cell
a. nucleus
b. ribosomes
c. cell wall
d. flagella
When scientists first studied electromagnetic energy, many theories were proposed to explain how these waves travel through space. Which statement below best describes how scientists arrived at the current understanding of electromagnetic energy?
A.Scientists all agreed with a single researcher who proposed the current theory.
B.Scientists completed internet searches of all available data to arrive at the current theory.
C.Scientists debated the theories with each other and compared the theories with scientific observations.
D.Scientists were able to observe the light from the brightest star in space, which verified the current theory.
Answer: D
Explanation:
Seems the most reliable to me :) good luck
Answer:
How might Ice Cube benefit future scientists and other people
Explanation:
How might Ice Cube benefit future scientists and other people
FUN FACT OF THE DAY (day:4)
A baby fox is called a kit
A baby alligator is called a hatchling
A baby armadillo is called a pup
A baby fish is called a fry or fingerling
Answer:
lol wow
Explanation:
A baby alligator is called a hatchling
Can cells leave g0?
A. Yes
B. Very rarely, but yes when there is a injury on a certain cell
C. No
please help I need the help:)
How does the watershed affect the water body into which it drains and how do humans impact this water?
Answer:
A watershed – the land area that drains to a stream, lake or river – affects the water quality in the water body that it surrounds. ... They are influenced by naturally varying lake levels, water movement to and from groundwater, and amount of stream flow.
Explanation:
Sea Rocket Plant siblings Lif planted next to each other
a. Share their resources
b. Compete with each other for resources
c. Kill each other
d. Do nothing different
What type of cells are blood cells? Click all that apply.
Answer:
The muscles cells and their body cell
PLEASE HELP!!!
"An advantage of ______ reproduction is that a genetic disorder in a parent might not affect The offspring
Answer:
An advantage of sexual reproduction is that a genetic disorder in a parent might not affect the offspring.
Explanation:
got 100
Answer:
An advantage of sexual reproduction is that a genetic disorder in a parent might not affect the offspring.
Explanation:
Since there are only two types of reproduction, sexual and asexual, andin asexual reproduction, the offspring gets all the qualities of the parent, we can determine that the offspring might not get the genetic disorder from the parent IF it is sexual. That is because there are 2 parents, hence giving a 50-50 chance to get it.
3. Forces of evolution include
a. DNA mutations
b. lack of migration
c. random mating
d. a large population size
Answer:
A. DNA Mutations
Explanation:
it evolves them in ways that even random mating cannot control
Answer:
A large population size:: summary population size is the number of individuals in a population. population density is the average number of individuals per unit of area or volume. the pattern of spacing of individuals in a population may be affected by the characteristics of a species or its environment.
What would happen if a new cell does not contain chromosomes ( best answer with explantion will get brainliest)
a. the new cell will not have instructions on how to function
b.nothing, chromosomes are not important to cells
c. the new cell will reporoduce uncontrollably
d.the new cell wil grow but cannot duplicate itself in the future
a. the new cell will not have instructions on how to function
Because all the genetic material is stored in the chromosomes. Thus, all information is in it.
Answer:
a. the new cell will not have instructions on how to function
Explanation:
Genetic information contained within DNA molecules regulates cell growth, replication, and cell repair. The long-chain, helical macromolecules of these deoxyribonucleic acids are formed from complex sequences of nucleotide monomers- secondary strands contain a complementary sequence joined to the leading strand by hydrogen bonding.
Chromosomes are the double-stranded DNA helixes wound around small molecules called histones. Genes or sequences of DNA encode instructions for the cell, in the form of proteins. This occurs via: the transcription processes, translation to become proteins, defining physical traits or phenotypes.
What is the main function of the circulatory system in multicellular organisms?
Answer:
Multicellular organisms have developed transport and circulatory systems to deliver oxygen and food to cells and remove carbon dioxide and metabolic wastes.
Explanation:
Answer:
To transport materials throughout the body
Explanation:
The giant african land snail is an invasive species that is also the largest snail ons earth what is most likely consequence of introducing this invasive species into a stable ecosystem?
a. The native snail species will change their diet therefore destabilizing the ecosystem.
b. The native snail species will move to another area allowing the ecosystem to remain stable.
c. The native snail species will share their food with the invasive species stabilizing the ecosystem.
d. The native snail species will compete for resources with the invasive species and destabilize the ecosystem.
What are the different nutrients used for the body's cells?
Answer:
There are six classes of essential nutrients required for the body to function and maintain overall health. These six classes of essential nutrients are: carbohydrates, lipids (fats), proteins, water, vitamins, and minerals.
Explanation:
What role does intraspecies competition play in natural selection?
A. There is competition within a species for resources, and only some individuals will survive.
B. There is competition within a species for resources, and only the single most fit individual will survive. ( ITS NOT B)
C. There is competition between species for resources, and only one species will survive.
D. There is competition between species for resources, and only one individual per species will survive. ( I don't think it's this one...)
Describe the circumstances of a solar eclipse.
A solar eclipse happens when the Moon passes in front of the Sun and casts a shadow across Earth.
For a total eclipse to take place, the sun, moon and Earth must be in a direct line. The second type of solar eclipse is a partial solar eclipse. This happens when the sun, moon and Earth are not exactly lined up. The sun appears to have a dark shadow on only a small part of its surface.
1. List the producers in this food web.
2.List the primary consumers in this food web.
3. List three secondary consumers.
4. List three tertiary consumers.
5. List two quaternary consumers.
If an ecosystem is no longer able to sustain its biodiversity, what potential impact could that fact have on the carrying capacity and growth rate of the human population over time?
It could potentially lead to a decrease in the carrying capacity of the ecosystem, which could in turn lead to a decrease in the growth rate of the human population over time.
What is carrying capacity?The carrying capacity of an ecosystem is the maximum number of individuals of a particular species that can be supported by the resources of that ecosystem. It is determined by the availability of food, water, and other resources, as well as by the presence of other species and environmental conditions. When the carrying capacity is reached, the population of that species will stabilize and may even begin to decline.
Carrying capacity is an important concept in ecology and population dynamics, as it determines the maximum size that a population can reach in a particular environment. It is important to note that carrying capacity is not fixed and can change over time due to a variety of factors, such as climate change, the introduction of new species, or the depletion of resources.
Learn more about carrying capacity, here:
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why must controlled fires be set in some ecosystems? what are some advantages and disadvantages?
Answer:well dry areas could catch fire and become out of hand or some plants may be harmed due to smoke
advantages:trimming area and making room
disadnstages:possible forest fire,harms plants,ruins animals homes
Explanation:
What is the ancient language(s) found on the large stone tablet in Rosetta
Answer: Ancient Greek
Explanation:
Answer:
Ancient Greek
Explanation:
The Greek text on the Rosetta Stone provided the starting point. Ancient Greek was widely known to scholars, but they were not familiar with details of its use in the Hellenistic period as a government language in Ptolemaic Egypt; large-scale discoveries of Greek papyri were a long way in the future.
I NEED THE ANSWER ASAP
which particles do plants absorb to obtain energy?  a. photons  b. electrons  c. atoms  d. molecules
Answ
i think its a
Explanation:
Answer:
It's a. photons(light energy)
What threatens the existence of a chimpanzee species?
Answer:
The primary threats to chimpanzees are habitat destruction, hunting, and disease. The increasing human population is encroaching ever deeper into even protected areas of chimpanzee habitats, and large scale logging is now a major threat to the forest primates of Africa.
Explanation:
Answer:
* Habitat destruction
* Hunting
* Disease
Need help ASAP
The Crust of the earth is mostly made of.......
a.Fe and Ni
b. Silica
c. Magnesium
d. Aluminum
Answer:
b. silica
Explanation:
!!
Explanation:
A crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. The upper part of the mantle is composed mostly of peridotite, a rock denser than rocks common in the overlying crust.
Help please this is my last question it’s question 4
Help please this is my last question it’s question 4
Answer:
C. Allele
What makes the structure of Carbon so unique? Why is Carbon considered the building block of all life? (3 sentence minimum answer)
Answer:
The carbon atom has unique properties that allow it to form covalent bonds to as many as four different atoms, making this versatile element ideal to serve as the basic structural component, or “backbone,” of the macromolecules.
All living things contain carbon in some form. Carbon is the primary component of macromolecules, including proteins, lipids, nucleic acids, and carbohydrates. Carbon's molecular structure allows it to bond in many different ways and with many different elements.
Explanation:
PLEASE ANSWER THIS QUICK QUESTION!!! ASAP! WORTH A LOT OF POINTS
What do all tide pool creatures have in common?
Or: What are the main features that all tide pool creatures have in common?
Explanation:
While these small basins at the ocean's edge typically range from mere inches to a few feet deep and a few feet across, they are packed with sturdy sea life such as snails, barnacles, mussels, anemones, urchins, sea stars, crustaceans, seaweed, and small fish.
Explain why two turns of the Krebs cycle are needed for each molecule of glucose ?
Two turns of the Krebs cycle are needed for each molecule of glucose
because glycolysis produces 2 molecules of pyruvate.
Glycolysis involves conversion of glucose to pyruvate after which it enters into the kreb's cycle to be converted into ATP which is the energy currency of cells.Pyruvate is the substrate-compound which enters into the kreb's cycle to form ATP. Since we are dealing with two pyruvates which are products of glycolysis then two turns are needed.Read more on https://brainly.com/question/25342836