Cell differentiation depends on changes in (BLANK)
expression.

Answers

Answer 1

It's gene.

I took the test too

Answer 2

Answer:

Cell differentiation depends on changes in GENE expression.

Explanation:

May I have brainliest please? :)


Related Questions

What division of the nervous system is responsible for gathering information and sending it to the cns?

Answers

 sensory, orr afferent, division

The property of the cell membrane that allows some molecules to pass and not others is called

Answers

Answer:  "selective permeability" .
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How do the products of glycolysis and krebs cycle relate to the electron transport chain?

Answers

During the process of glycolysis and krebs cycle (which is also known as tricarboxylic acid (TCA) cycle or citric acid cycle), there is breakdown of large molecules to product smaller molecules and energy including ATP.

 

So the answer to this would be:

Glycolysis and Krebs cycle produce the molecules that shuttle electrons to the electron transport chain

Final answer:

The products of glycolysis and the Krebs cycle are used in the electron transport chain to generate ATP through oxidative phosphorylation.

Explanation:

The products of glycolysis and the Krebs cycle are used in the electron transport chain to generate energy in the form of ATP. In glycolysis, glucose is broken down to produce pyruvate and a small amount of ATP. Pyruvate then enters the Krebs cycle, where it is further broken down and produces more ATP, NADH, and FADH2.

The electron transport chain uses the NADH and FADH2 from glycolysis and the Krebs cycle to produce a large amount of ATP through oxidative phosphorylation. At each step in the electron transport chain, electrons are passed from one molecule to another, ultimately generating a proton gradient across the mitochondrial membrane. This gradient drives the synthesis of ATP by ATP synthase.

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The appearance of cuticle and stomata correlated with what event in the evolution of green plants?

Answers

Answer: the movement to life on land

Explanation:

The appearance of cuticle and stomata correlated with the movement to life on land is the event in the evolution of green plants in which the process of photosynthesis takes place.

What is Photosynthesis?

Photosynthesis is a biochemical reaction that combines chemicals with biological species to produce energy. Atoms of hydrogen bond with carbon to form glucose.

Carbon dioxide and hydrogen are the reactants that are used from the environment by the plants to make energy. Glucose and oxygen are the products. Splitting water into oxygen gas, hydrogen ions and electrons produces the energy for subsequent electron and proton transport and provides the energy to produce the sugars the plant needs.

The hydrogen atoms from the environment are absorbed by the plants and are combined with the carbon dioxide to yield glucose or sugar molecules for energy.

Therefore, The appearance of cuticle and stomata correlated with the movement to life on land is the event in the evolution of green plants in which the process of photosynthesis takes place.

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The pituitary gland is known as the "master gland" because it

Answers

The pituitary gland is known as the "master gland" because it is known to control hormones that regulate several other important systems in the endocrine system such as the thyroid gland, ovaries, and testes.

Co2 enters a leaf through pores in the leaf's surface known as

Answers

This happens in the stomata. This small set of pores in the leaf is known for gas exchange. When the CO2 comes in, oxygen leaves the leaf. A singular pore is called a stoma and has a chloroplast, a cell wall, a vacuole, and a cell nucleus.

Is a prosthetic group present in several components of the electron transport chain?

Answers

The answer is true. The prosthetic group is present in several components of the electron transport chain. The complexes one, two and three can have a presence of prosthetic group in which is being referred to as the iron sulfur clusters.

Psychologist are only interested in treating people with metal illness true or false

Answers

False. There are many psychologists that have interests in other places of the human brain and even body.

Is rice pudding a homogeneous or heterogeneous mixture?

Answers

Rice pudding would be an example of a heterogeneous mixture. A heterogeneous mixture means that different constituents of a mixture can be identified. Rice pudding consists of rice suspended in a cream. It is possible to identify the grains of rice and the creamy part of the mixture. A homogeneous mixture looks the same throughout--you cannot identify individual parts or ingredients. The parts of a homogeneous mixture are said to be uniformly distributed. Rainwater and air are examples of homogeneous mixtures.

A group of students is trying to guess which organism their teacher is thinking of by asking her a series of questions. One of the students asks if the cells of the organism contain ribosomes. Will the teacher's answer help her students shorten the list of possible organisms?

Answers

It will not help the students shorten their list being every living organism is composed of cells and all cells contain ribosomes in order to function properly.

Answer:

Explanation:

I don't think so that teacher's answer going to help her students in shorten the list because every living organism on this planet is composed of cells and cells of organism contain small organelle. For example, Elephant contain these small organelle and even single celled organism such as prokaryotic cell also contain this small organelle within it's cell.

Where in the cell are photosynthetic pigments that are not found in the chloroplasts located?

Answers

Answer:

Explanation:

Chloroplast, structure within the cells of plants and green algae that is the site of photosynthesis, the process by which light energy is converted to chemical energy, resulting in the production of oxygen and energy-rich organic compounds. Photosynthetic cyanobacteria are free-living close relatives of chloroplasts; endosymbiotic theory posits that chloroplasts and mitochondria (energy-producing organelles in eukaryotic cells) are descended from such organisms.

In the offspring resulting from an f1 testcross, what percentage of recombinant phenotypes is expected if the genes under study are independently assorting?

Answers

A testcross is used to predict the genotype of an organism. It determines whether the genotype of an organism is homozygous or heterozygous.
If the genes under the study are independently assorted then genotype of the F1 generation will  be:

AA for dominant homozygous parent  X  aa for recessive homozygous parent
F1 = All four progeny with Aa genotype

Cross between offspring resulting from F1 testcross will produce:

Aa  X Aa
F2 = One progeny with AA, one progeny with aa, two progeny with Aa (recombinant)
Answer: In the offspring resulting from an F1 testcross,  "50%" of recombinant phenotypes is expected if the genes under study are independently assorting.

describe some of the most important elements found on earth and their properties of these elements that make them important?

Answers

Well, one is Oxygen/ O, which has an atomic mass of 15.999 and the atomic number is 8, Oxygen is essential for life because we need it to breathe, and the plants need it for photosynthesis.
The next would be Carbon, whose atomic number is 6, and is also used in graphite and one of the major factors in making coal, which is an important fuel. 

The most important elements found on the surface of the earth may include oxygen, carbon, hydrogen, nitrogen, sulfur, and phosphorus.

What do you mean by Elements?

Elements may be defined as the types of chemical substances that cannot significantly be broken down or split into other simpler substances. The most basic particle that constitutes an element is known as the atom.

Oxygen has an atomic mass of 16 amu and an atomic number is 8, It is one of the most essential elements for life because living organisms require it to breathe. The atomic number of Carbon is 6. It is used in graphite. It is required in the process of photosynthesis along with oxygen.

Nitrogen is a major component of chlorophyll. Chlorophyll is the compound through which plants use sunlight energy in order to produce sugars from water and carbon dioxide. Hydrogen assists in the manufacturing of energy in the body like ATP.

Therefore, the most important elements found on the surface of the earth may include oxygen, carbon, hydrogen, nitrogen, sulfur, and phosphorus.

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If enzymes are used by all cells for all metabolic processes in different organisms, would you expect all enzymes to be efficient at the same temperature? Why or why not?

Answers

No; enzymes in different organisms would have to be efficient at the optimal temperature for each organism.
For example, humans have an optimal body temperature of 37 °C, but the optimal body temperature for dogs is 38.3 °C and for most birds, it's 40 °C.

____ are the cells in the nervous system that interconnect information processes. neuron dendrite pons

Answers


Neurons are the main cell of the nervous system which is responsible for communication of organs and control of many bodily functions. Neurons transmit electrochemical signals which are known as neurotransmitters and neuromodulators that act as messengers for sensory input and motor output.
Also, the nervous system is composed of two main branches which are the central nervous system and the peripheral nervous system. The central nervous system is composed of the brain and spinal cord whereas the peripheral nervous system is composed of the nerves around the body.

The current system of classifying organisms using molecular analysis and is called

Answers

This is called systematics

_______ contains the genetic instructions for making proteins.

Answers

A gene contains the genetic instructions for making proteins. 

Give an example of a type of cell in a living organism (animal or plant) that is shaped very differently than the classical round or boxy shape that you see drawn in introductory textbook chapters on cells. explain how that unique shape is tied to the function that those cells perform.

Answers

Final answer:

The shapes of nerve cells, red blood cells, and sperm cells are intricately tied to their functions in transmitting nerve impulses, transporting oxygen, and fertilization, respectively. Pollen grains' spiky surfaces aid in pollination, while white blood cells' ability to change shape is crucial for immune responses.

Explanation:

Unique Cell Shapes and Their Functions

Cells with unique shapes are perfectly adapted for their specific functions within living organisms. A prime example is the nerve cell or neuron, which has a complex, star-like shape with long extensions known as axons and dendrites. These processes allow neurons to transmit nerve impulses over long distances and communicate with numerous other cells, coordinating the body's responses to environmental stimuli. Another distinct cell shape is found in red blood cells, which have a biconcave disc shape. This unique form increases the surface area for oxygen transport and enables the cells to bend as they pass through the smallest blood vessels. Likewise, sperm cells have a long, flagellated tail that assists in their motility, enabling them to navigate through the female reproductive tract to reach the egg for fertilization.

Pollen grains have evolved with spiky surfaces that increase adhesion to insects, facilitating cross-pollination as insects travel from flower to flower. Additionally, the white blood cells, responsible for immune responses, can change shape to engulf pathogens, a process called phagocytosis. Algae cells often have tail-like projections that allow them to swim through water, enhancing their reproductive success and distribution.

All these examples underscore the biological principle that the form of a cell is intricately linked to its function, whether in nerve communication, oxygen transport, reproduction, pollination, immune defense, or motility. This diversity in morphology illustrates the specialization and complexity of cells in multicellular organisms.

Why are carbon dioxide concentrations expected to increase?
a. Carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase.
b. Carbon dioxide concentrations are expected to increase, because of an increase in agriculture.
c. Carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use.
d. All of the above

Answers

The correct option is (d). Carbon dioxide concentrations are expected to increase because fossil fuel burning is expected to increase, an increase in agriculture, & more land will have to be cleared for increasing populations and agricultural use.

Carbon dioxide (CO₂) concentrations are anticipated to rise due to multiple factors.

The burning of fossil fuels for energy, transportation, and industry releases large amounts of CO₂, significantly contributing to greenhouse gas emissions. Increased agricultural activities, including livestock farming and rice paddies, produce methane and CO₂. As populations grow, more land is cleared for agriculture and urban development, leading to deforestation. Trees and plants absorb CO₂, so their removal means reduced CO₂ sequestration and more CO₂ in the atmosphere. Collectively, these factors exacerbate the greenhouse effect, trapping heat and contributing to global warming.

Addressing these issues requires integrated strategies, including transitioning to renewable energy sources, improving agricultural practices, and promoting reforestation and sustainable land use.

In cells, ______ controls the assembly of amino acids into proteins

Answers

Ribosomes are responsible for constructing proteins from amino acids within the cell.

Proteins are being synthesized while also being transported into the ER by membrane-bound ribosomes, which are affixed to the cytosolic side of the ER membrane. All other proteins encoded by the nuclear genome are produced by unattached, free ribosomes.

What role of ribosome in the production of protein?

The nucleus is where ribosomes receive the instructions to start the process of making new proteins.

Transcription is the process by which segments of DNA (genes) that code for certain proteins are transcribed over to strands of messenger RNA (mRNA).

The messenger RNA (mRNA) sequence is read by the ribosome, which then converts the genetic code into a specific string of amino acids that develop into extended chains and fold to create proteins.

Therefore, In cells, ribosome controls the assembly of amino acids into proteins.

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Which phrase best describes the electron transport chain in photosynthesis?

Answers

The options for this question are not provided hence, I found the answer on the internet.

Phrase to describe the electron transport chain in photosynthesis is:
IT IS A SERIES OF PROTEINS LOCATED IN THE THYLAKOID MEMBRANE OF THE CHLOROPLAST.
ATP synthase enzyme that facilitates electron transport chain in eukaryotic cells. It is present in the inner membrane of mitochondria and in the thylakoid of chloroplast.
 
Final answer:

The initial source of electrons for the chloroplast electron transport chain in photosynthesis is water. These electrons are excited by light in PSII and move through the ETC, facilitating the creation of an electrochemical gradient used to form ATP.

Explanation:

The initial source of electrons for the chloroplast electron transport chain (ETC) in photosynthesis is water (H2O). When light energy excites electrons in photosystem II (PSII), these high-energy electrons are donated to the ETC. As the excited electrons move through the ETC, they facilitate the pumping of protons (H+) into the thylakoid lumen, creating an electrochemical gradient. The energy captured in this process is ultimately used by ATP synthase to convert ADP to ATP in a process known as photophosphorylation. Concurrently, water molecules are split to replenish the lost electrons, releasing oxygen as a by-product. Finally, the electrons that reach photosystem I (PSI) are used to reduce NADP+ to NADPH, a molecule that carries energy and hydrogen for subsequent use in the Calvin cycle.

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Two football players are running toward each other. One football player has a mass of 105 kg and is running at 8.6 m/s. The other player has a mass of 90 kg and is running at –9.0 m/s.

The momentum of the system after the football players collide is
kg • m/s.

Answers

105 kg and velocity = 8.6 m/s
Momentum = 105*8.6 = 903 kgm/s

90 kg and velocity = -9.0 m/s
Momentum = 90*-9 = -810 kgm/s

Momentum of the system =  903 + (-810) = 903 - 810 = 93
Momentum of the system = 93 kgm/s in the direction of the first football player.

Answer:

93 kg m/s

Explanation:

keep it simple, and correct :)

A patient has wiskott-aldrich syndrome. which immunoglobulin whould the nurse expect to be low

Answers

Wiskott-Aldrich syndrome is linked with low immunoglobulin G (IgG) and immunoglobulin M (IgM) levels, with normal-to-high immunoglobulin E (IgE) and immunoglobulin A (IgA) levels. Though, young babies in exact may not display classic immunoglobulin irregularities because Wiskott-Aldrich syndrome is linked with attrition in immunologic functions.

During the water cycle, water evaporates from plants through a process called transpiration. which of these is a similar process during the carbon cycle?

Answers

evaporation is the correct option

how is protein different from carbohydrate

Answers

Salutations!

Protein is different from carbohydrate due to its chemical structure. Protein
contains only of nitrogen, oxygen, carbon, hydrogen. Carbohydrates consists of only 3 chemical compositions: oxygen, carbon, hydrogen. Also, when protein is broken down into the basic units,  its is broken down as amino acids, while carbohydrates is broken down as sugar.

Hope I helped (:

Have a great day!

Answer:

Proteins:

Proteins are composed of amino acids (which contain hydrogen, oxygen, sulfur, nitrogen, and carbon). They are also known as building blocks because they are mainly used for building the structure of the body. Proteins are the raw material that is used to maintain (buildup) healthy body cells and function properly.

Carbohydrate:

Carbohydrate is an organic compound (which contains carbon, hydrogen, and oxygen). carbohydrate is composed of sugar. They are mainly needed by the body for energy. Carbohydrates main purpose is to provide fuel to the body.

A group of paleontologist were studying sedimentary rocks in the Rocky Mountains of North Carolina . What order of organisms would they find in the layers of these sedimentary rocks

Answers

Newest organisms are at the bottom and the oldest organism is in the topmost layer of the sedimentary rocks.

What are the parts of a neuron? what is the main function of the neuron, and which special neuron parts help with this? neuropsychology?

Answers

Neurons have three parts that carry out the information and integrations and these three are dendrites, axons, and axon terminals. The key function of the neuron is to send, receive, and infer information from the body. The special neurons - axon sends info away and the dendrites receive.

Explain how the habitat played an active role in natural selection for the fur color of the arctic hare.

Answers

The arctic hare has white fur to help hide in the cold snowy habitat. Having white fur in a snowy climate will help the hare hide from its predators.

As an adaptation mechanism, because the habitat of the arctic hare is snowy-white, the arctic hare has white fur in order to blend in and hide from predators.

How does the habitat play an active role in natural selection for the fur color of the arctic hare?

An adaptation refers to a feature or characteristic of an organism that helps it to better survive or fit into an environment.

The arctic hare has white fur to help it survi in the cold snowy white habitat.

Having white fur in a snowy climate serves as a camouflage which will help the hare hide from its predators.

Therefore, because the habitat of the arctic hare is snowy-white, the arctic hare has white fur in order to blend in and hide from predators.

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Describe the three different types of cabling recognized by tia/eia as acceptable for horizontal wiring.​

Answers

TIA/EIA distinguishes three possible cabling types for horizontal wiring and these are UTP, STP, or fiber optic cable. UTP stands for unshielded twisted pair cables. This is a common type of cable that contains of two unshielded wires warped around each other. This is mostly used in LANs and telephone wires. STP or shielded twisted pair is comparable to UTP but with each pair protected by an extra copper braid jacket. This wires are often used in Ethernet networks. And lastly, fiber optic cables are frequently used as a way to transfer light between the two ends of the fiber and catch wide usage in fiber-optic communications, where they let broadcast over longer spaces and at higher data rates than cable wires.

Final answer:

The three types of cabling recognized by TIA/EIA standards for horizontal wiring are UTP (Unshielded Twisted Pair), STP (Shielded Twisted Pair), and Coaxial Cable, each offering different levels of interference protection and suitability for various networking environments.

Explanation:

Types of Cabling for Horizontal Wiring

According to TIA/EIA standards, the three types of cabling recognized as acceptable for horizontal wiring are:

UTP (Unshielded Twisted Pair) - This is the most common type of cabling used in computer networking. UTP cables have pairs of wires twisted together to reduce electromagnetic interference.

STP (Shielded Twisted Pair) - Similar to UTP, these cables have additional shielding to further protect against interference, making them suitable for higher-speed networks or where interference is a significant concern.

Coaxial Cable - Traditionally used in television distribution, these cables are characterized by an inner conductor surrounded by a tubular insulating layer, a metallic shield, and an insulating outer jacket, providing a higher level of shielding against electromagnetic interference compared to twisted pair cables.

These cabling types support the transmission of data in networking and telecommunication infrastructures. The choice of cabling can be influenced by factors like network speed, distance, environment, and cost.

In what type of organisms can genetic information flow from rna to dna?

Answers

the correct answer to this is viruses

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