Answer:In molecular biology, complementarity describes a relationship between two structures each following the lock-and-key principle. ... A complementary strand of DNA or RNA may be constructed based on ... Complementarity is also utilized in DNA transcription, which generates an RNA strand from a DNA template. In addition ...
Explanation:
Select the part whose main job is to direct a plant cell's activities by sending instructions to different parts of the cell.
Answer: The nucleus
Explanation: It directs the cell's activities in the plant and animal cells.
The part whose main job is to direct a plant cell's activities by sending instructions to different parts of the cell is the nucleus. It directs the cell's activities in the plant and animal cells.
What is the short definition of a plant cell?
Plant cells are eukaryotic cells with a genuine nucleus and particular organelles to carry out particular tasks. Plant cells do, however, include several organelles that are unique from those seen in other eukaryotic cells.
Roots, stems, leaves, flowers, and reproductive structures are only a few of the major classes of cells and tissues that are formed when plant cells differentiate from undifferentiated meristematic cells, which are similar to the stem cells of animals. Nucleus part main job is to direct a plant cell's activities by sending instructions to different parts of the cell.
Therefore, The part whose main job is to direct a plant cell's activities by sending instructions to different parts of the cell is the nucleus. It directs the cell's activities in the plant and animal cells.
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Which statement best describes the purpose of Earth's spheres?
Answer:
They work together as open systems to cycle matter through ecosystems. They work independently as closed systems to cycle matter through ecosystems. They work together as open systems to move matter to living and nonliving parts of Earth
1. This is a glucose molecule, the sugar made in photosynthesis. Saccharides, or sugars, are
the building blocks for carbohydrates. What is another term for “building block?"
How can vaccines be used to prevent viral infection?
A.)To prevent a immune response in the host
B.)To destroy any virus that enters the host
C.)To create a blocking protein on the cell
D.)To prevent the replication of the virus
Answer:
D
Explanation:
I know
Answer:
I believe that your answer is C.
Explanation:
C is your answer because it shows your body how to fight and block the virus.
vaccines usually send antigerms in your cells and create immunity/block the virus from entering your cells.
i hope this helps! let me know if im wrong :)
What is gained from each part of aerobic respiration?
Answer:
Cellular respiration uses energy in glucose to make ATP. Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. ... This results in a net gain of two ATP molecules. Life first evolved in the absence of oxygen, and glycolysis does not require oxygen.
Hope this helps..ill give you a brainliest if it is right
Answer:
Both water and oil are not minerals because they are liquids.
Explanation:
Write a paragraph that explains the increase and how technologies that have appeared over
the past 100 years may have contributed to the increase or may have prevented more
significant increases in greenhouse gas levels.
Answer:
Mar 4, 2011 — Past changes in Earth's temperature happened very slowly, over ... Human activities contribute to global warming by increasing the greenhouse effect. ... Emissions of carbon dioxide, the most important greenhouse gas, ... Even slight rises in average global temperatures can have huge effects. ... 100 years.
Explanation:
Grizzly bears have a diploid number of 74 chromosomes in their body cells. How many chromosomes were in each of the male's sperm cells?.
Answer:
74 ÷ 2 = 37
since it's only one gamete cell then it's twice less the number
In which cellular organelle is genetic information (DNA) held?
Mitochondria
Ribosomes
Cell membrane
Nucleus
Answer:
Nucleus
Explanation:
Match the type of metamorphism to its cause.
Answer:
Contact - Heat
Dynamic - Directed Pressure
Impact - Meteorite
Regional - Surrounding
please help please giving brainlest
Answer:
hmm it think it is option one as the answer
Explanation:
because i typed it in and i found the answer
This is the origin of new combinations of traits in offspring(fourth option). This process is called crossing-over or intrachromosomial recombination. This is the reason why parents and offspring don't look alike
PLEASE ANSWER QUICK
The figure presents a diagram of adding d T M P to a growing strand of D N A. A D N A template that consists of nine nucleotides is shown. Five nucleotides have already been added to the complementary strand that is growing from left to right along the template. The left end of the growing strand is labeled 5 prime, and the right end is labeled 3 prime. The left end of the template strand is labeled 3 prime, and the right end is labeled 5 prime. An incoming d T T P has three phosphate groups. Arrows indicate that the two outermost phosphate groups split off as the d T M P with the remaining phosphate group is about to join to the 3 prime end of the growing strand.
Figure 1. Model showing details of adding a deoxythymidine monophosphate (dTMP) nucleotide to a growing strand of DNA
The features of this model provide evidence for which explanation of why all growing strands are synthesized in a 5′ to 3′ direction?
A. The two strands need to be antiparallel to bond properly.
B. Thymine and adenine would not bond properly if the strand grew from 3′ to 5′.
C. The translation of mRNA occurs in the 5′ to 3′ direction; therefore, the growing DNA strand must also grow in the 5′ to 3′ direction.
D. The phosphate group, attached to the 5′ carbon of the dTMP, forms a covalent bond with the oxygen atom attached to the 3′ carbon of the growing strand.
Answer:
D - The phosphate group, attached to the 5′ carbon of the dTMP, forms a covalent bond with the oxygen atom attached to the 3′ carbon of the growing strand.
Explanation:
I got it checked and it was right
The feature of the model provides evidence in a 5′ to 3′ direction is the phosphate group, attached to the 5′ carbon of the dTMP, forms a covalent bond with the oxygen atom attached to the 3′ carbon of the growing strand. The correct option is D.
What are DNA bases?The sequence of DNA bases is referred to as the DNA sequence. RNA and DNA are both genetic elements composed of nucleic acids composed of deoxyribose acid, while RNA is composed of ribonucleic acid.
Both DNA and RNA have four bases that are linked together by a hydrogen bond. RNA has uracil in place of thymine, but DNA has timing and all other bases are the same.
Therefore, the correct option is D. The phosphate group, connected to the dTMP's 5′ carbon, creates a covalent bond with the oxygen atom associated with the developing strand's 3′ carbon.
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what can a stars color indicate about its properties
Answer:
A star's color indicates it's temperature, composition and relative distance from earth
Explanation:
I hope this helps, have a good day
Answer:
A star can be defined by five basic characteristics: brightness, color, surface temperature, size and mass.
Brightness. Two characteristics define brightness: luminosity and magnitude. ...
Color. A star's color depends on its surface temperature. ...
Surface Temperature. ...
Size. ...
Mass
C2H5OH
How many elements are there in a molecule of
Ethanol shown in the above formula?
Answer:
9 elements
Explanation:
there are 2 C
6 H
1 O
What particle in an atom determines what element it is?
Answer:
Protons
Explanation:
The number of protons in the nucleus determines which element an atom is, while the number of electrons surrounding the nucleus determines which kind of reactions the atom will undergo. The three types of subatomic particles are illustrated below for an atom of helium—which, by definition, contains two protons.
Cancer cells are rogue cells. List and explain 3 mutations that allow cancer cells to occur:
A nucleotide consists of
A nucleotide is made up of a sugar molecule connected to a phosphate group and a nitrogen-containing base. These bases in nucleotides are adenine, cytosine, guanine, and thymine (Note: Thymine is not present in RNA so it is replaced with Uracil.)
At the age of 22, Mrs. LaBlanc was less than 4 feet tall. Her short stature was probably influenced by the lack of a growth hormone produced by the
Answer:
pituitary gland
Explanation:
I got it right on the worksheet
Blank 1) Proteins
Cytoplasm
Chromosomes
Blank 2) Alleles
Proteins
Chromosomes
Blank 3) Mutations
Adaptations
Chromosomes
Blank 4) Neutral
Harmful
Beneficial
Beneficial, neutral, or harmful
Answer:
Blank 1) chromosomes
Blank 2) proteins
Blank 3) mutations
Blank 4) harmful
help please don't know the answer
All life on Earth has DNA. All life on Earth has the same set of mutations in its genes
Whats TWO Answer Giving Brainliest To first Correct AnSwEr:D......... HELP HELP
Answer:
C
Explanation:
In this assignment, you will write a story about how different foods travel through the digestive and excretory system from the mouth to the anus. Pretend that you are a food, such as pizza, traveling through the digestive system. Explain what happens to you (food) in the digestive tract from the time you are placed in the mouth until you exit the body. What do you see along the way? What happens to you at each part of the journey? Make your story creative and fun. The essay should be 1 to 1.5 pages, typed (using 12 pt. font), double-spaced.
Your story should have the following elements:
• Describe how food travels through the digestive system.
• Include 3-4 different foods.
• Explain what occurs at each organ of digestion.
• Be written in the first-person point of view (This means you pretend that you are the food, so use I and me to refer to yourself).
Include these key words and phrases: stomach, digestion, small intestine, large intestine, mouth, anus, and complete digestive system.
Answer:
ghost town
i am a hacker
Explanation:
i hack 100 ppl you know
Which of the following is the correct rule of nucleic acids in the body?
A. They provide quick-releasing energy to the body
B. They contain genetic information that is passed to offspring
C. They catalyze chemical reactions left in the cell
D. They are the main structural components of cell membranes
Answer: B. They contain genetic information
Explanation: The role of nucleic acids is to store the genetic information (DNA) and to decode that information into proteins (RNA). DNA is also the form in which genetic information is passed from one generation to the next.
Of the 6 elements which is most important for making large molecules (chnops) PLEASE HELP ME I NEED IT QUICK!!! Thanks
Please answer quickly, timed test!!
Which term is correctly paired with its role in the body?
A) insulin – a sugar that regulates blood glycogen levels
B) ADP – a molecule that releases energy when it forms ATP
C) glycogen – a hormone found in blood that regulates blood glucose levels
D) glucose – a sugar found in blood that can be broken down to produce ATP
Answer:
D.
Explanation:
insulin is not found in the body
Answer:
D
Explanation:
because glycogen is NOT a form of sugar so insulin wouldn't regulate it the other person knows nothing about the body (no offense)
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One major difference between prokaryotic and eukaryotic cells is
Group of answer choices
Prokaryotic cells are microscopic, eukaryotic cells are not
Prokaryotic cells have no nucleus, eukaryotic cells do
Prokaryotic cells do not contain DNA, eukaryotic cells do
Prokaryotic cells are more complex, eukaryotic cells are more simple
Answer:
Prokaryotic cells have no nucleus, whereas eukaryotic cells have DNA enclosed in a nucleus.
Explanation:
The major difference between prokaryotic and eukaryotic cells is -Prokaryotic cells have no nucleus, eukaryotic cells do.
Eukaryotic cells are one of the two types of cell types prokaryotic and eukaryotic. There are various structural and functional differences found in them.
Eukaryotic cells are different from prokaryotic cells as:
the presence of a nucleus that stores DNA surrounded by the nuclear membrane presence of membrane-bound organelles like chloroplast. cell wall may or may not be present cell division is either mitosis or meiosis Eukaryotic organisms have various ranges of organisms either multicellular or single-celled as well.Thus, The major difference between prokaryotic and eukaryotic cells is -Prokaryotic cells have no nucleus, eukaryotic cells do.
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Just as energy flows through an ecosystem, matter also moves from organism to organism and from organisms to the environment. Using either a kelp forest or a hydrothermal vent ecosystem as an example, explain how carbon can move through the organisms in that ecosystem.
Answer:
Explanation:
Energy is transferred through an ecosystem in steps, making up a food chain or a food web. At the bottom of the chain are the primary producers, which absorb sunlight and use the light energy to convert carbon dioxide and water into carbohydrates (long chains of sugar molecules) and eventually into other biochemical molecules, by photosynthesis.
The primary producers support the consumers—organisms that ingest other organisms as their food source. Finally, decomposers feed on decaying organic matter, from all levels of the web. Decomposers are largely microscopic organisms (microorganisms) and bacteria.
The food web is really an energy flow system, tracing the path of solar energy through the ecosystem. Solar energy is absorbed by the primary producers and stored in the chemical products of photosynthesis. As these organisms are eaten and digested by consumers, chemical energy is released. This chemical energy is used to power new biochemical reactions, which again produce stored chemical energy in the consumers' bodies.
Energy is lost at each level in the food web through respiration. You can think of this lost energy as fuel burned to keep the organism operating. Energy expended in respiration is ultimately lost as waste heat and cannot be stored for use by other organisms higher up in the food chain. This means that, generally, both the numbers of organisms and their total amount of living tissue must decrease greatly up the food chain. In general, only 10 to 50 percent of the energy stored in organic matter at one level can be passed up the chain to the next level. Normally, there are about four levels of consumers.
A food chain or a food web is made up of the stages through which energy is moved across an ecosystem. The primary producers are found at the bottom of the food chain.
What is food chain?By photosynthesis, they transform carbon dioxide and water into carbohydrates (long chains of sugar molecules) and ultimately into other biological compounds.
The consumers are organisms that consume other organisms as food—are supported by the primary producers. Decomposers, who feed on decaying organic materials from all tiers of the web, are the last group. The majority of decomposers are bacteria and tiny organisms.
The food web actually follows the route of solar energy through the environment and is a system of energy flow.
Therefore, A food chain or a food web is made up of the stages through which energy is moved across an ecosystem. The primary producers are found at the bottom of the food chain.
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DNA and RNA differ in the following way(s):
1. DNA has a phosphate and RNA does not
2. DNA and RNA have different 5 carbon sugars
3. DNA and RNA have the same nucleotides
4. Both A and C
Answer:
2
Explanation:
RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose
Are there nuclear reactions going on in our bodies?
Answer:
Yes, there are nuclear reactions constantly occurring in our bodies, but there are very few of them compared to the chemical reactions, and they do not affect our bodies much. ... Chemical reactions do not change the nuclear structure of any atoms. In contrast, nuclear reactions involve the transformation of atomic nuclei.
Explanation:
Answer:
yes
Explanation:
How does the immune system work with other body systems to protect the body from pathogens?
Answer:
integumentery system
Explanation:
your skin is actually the first protection against illness-causing pathogens.