Answer:
complementary DNA (cDNA)
Explanation:
The complementary DNA (cDNA) is a region of DNA that is synthesized from an RNA template by using a reverse transcriptase enzyme. cDNA is usually used to clone genes from eukaryotic organisms in prokaryotes. cDNA cloning is a technique that consists of isolating and amplifying a self-replicating prokaryotic organism that includes in its genome a cDNA of interest. This technique enables the insertion of fragments of eukaryotic DNA (cDNA) into plasmids that subsequently are multiplied by cloning and finally sequenced.
What is the role of enzymes primase in the DNA replication?
A. Primase relaxes the DNA double helix so that other enzymes can reach the DNA.
B. Primase initializes replication by building short RNA primer complementary to the template.
C. Primase seals any gaps between Okazaki fragments or Fragments of DNA.
D. Primase is the enzyme that connects the ribosome to the DNA.
Answer:
primase relaxes the DNA double heliz so that other enzymes can reach the DNA
Explanation:
Answer:
A,
Explanation:
How much will atmosphere carbon change in one year
Answer:
Around 0.6 +/- 0.1 ppm per year.
Explanation:
There could be an increase from the past years.
Which of the following is a result of global warming?
A)
the melting of ice in the polar regions
B)
increasing biodiversity and thriving populations
C)
the cooling of lakes and rivers
D)
the falling of the sea level
E)
a decreasing concentration of CO2 in the atmosphere
Answer:
A (The melting of ice in the polar regions)
Explanation:
Global warming creates many effects, which include ice melting way before it should. Sea levels have also risen in the past years which supports the fact of ice melting.
Answer:
A
Explanation:
EDGE 2021
Which three elements do plants get from minerals found in soil?
A. Nitrogen (N)
B. Sulfur (S)
C. Carbon (C)
D. Phosphorus (P)
Answer: Nitrogen, Phosphorus and Potassium
Explanation:
Timed! What is true about the off spring of yeast? (Picture shown)
Ribosomes are the site where
are produced
Amino acids are coded for by triplet bases in RNA called
Answer:
Ribosomes are the site where proteins are produced
Amino acids are coded for by triplet bases in RNA called codons.
Explanation:
its me i get it right lol
What does this experiment demonstrate about the movement of water across a cell membrane?
UJ
more
A. If a cell is placed in a solution that has a lower concentration of solutes than the concentration inside the cell,
solutes will move out of the cell
B. If a cell is placed in a solution that has a higher concentration of solutes than the concentration inside the cell,
water will move into the cell
C. If a cell is placed in a solution that has a higher concentration of solutes than the concentration inside the cell,
water does not enter or leave the cell
D. If a cell is placed in a solution that has a higher concentration of solutes than the concentration inside the cell,
water will move out of the cell
Answer:smosis is the diffusion of water across a semi-permeable (or differentially permeable or selectively permeable) membrane.
Explanation:
what macromolecule can be found in a virus ?
Answer:
HOPE IT HELPS -
Most viruses have either RNA or DNA as their genetic material. The nucleic acid may be single- or double-stranded. The entire infectious virus particle, called a virion, consists of the nucleic acid and an outer shell of protein. The simplest viruses contain only enough RNA or DNA to encode four proteins
During which phase of the cell cycle does the cell prepare for mitosis?
A. the first growth phase
B. the synthesis phase
C.the second growth phase
D the mitotic phase
Answer:
The second growth phase
Explanation:
i did the quiz
CAN SOMEONE PLEASEEEE HELP ME WITH THIS SCIENCE QUESTION THANK YOU!! (Explain how you got the answer)
Answer:
A. to conserve soil nutrients
Explanation:
Crop rotation helps to maintain soil structure and nutrient levels. If you don't rotate crops, the soil in that field will inevitably begin to lose the nutrients plants need to grow.
Answer:
it is A to conserve soil nutrientsClear selection
5. Which term correctly identifies the-alternative energy source in which 20 points
flowing water spins turbines that are connected to generators?
A solar energy
B. biofuel energy
C. geothermal energy
O D. hydroelectric energy
Clear selection
Send me a copy of my responses.
Answer:
D
Explanation:
W A T E R
The big bang produced an imprint of leftover heat called _____.
Answer:
The big bang produced an imprint of leftover heat called CMB radiation
Explanation:
CMD is short for Cosmic Microwave Background
Answer:
13 billion years ago. The big bang produced an imprint of leftover heat called. CMB radiation. ... Because CMB radiation was throughout the universe, scientists can only relate the source to the big bang.
Explanation:
HOPE IT HELPS :)
How are circulation and respiration related?
Will give brainlest and heart if correct
Answer:
G1, S and G2
Explanation:
Idek, I needed more characters
Answer:
The answer is A, G1, S, G2 and the mitotic phase.
Explanation:
Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth). At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter cells.
40 points and brainliest.
1- Fire uses the energy, The heat is required, it is the part of the chemical reaction. Heat reacts with the fuel and oxygen to ignite it.
2- Bacteria as the decomposers gets rid of the wastes. It breaks down the organic material such as the remains of dead organisms.
3- Fire grows and develops, The fire has different stages. If its not controlled in its initial stages it could grow and develop into really big destruction.
4- Bacteria can sense and respond to stimuli. There is phototactic and chemotactic movement found in bacteria.
5- Bacteria has ways to protect itself from har.sh environment. They can form colony and work together against the changes, also they can form the hard cyst to protect themselves from the unfavorable conditions.
6- Bacteria reproduces, It has different ways of reproduction i.e. Trans.duction, Transf.ormation, conju.gation.
7- Wrist.watch have a def.ined boun.dary as it is not a living thing it can't gr.ow, it does not have 8 chara.cteristics of li.fe.
8- Wrist.watch has internal organization which help them to carry out basic functions
9- Algae are made of more than one cells
_____________________________________Best Regards,'Borz'Answer:
thxs
Explanation:
Fluctuations in the phosphorus cycle in aquatic ecosystems____
Answer:
A ^^
Explanation:
Fluctuations in the phosphorus cycle in aquatic ecosystems a. can lead to changes in the growth rates of aquatic populations The increase in phosporus amount in the aquatic ecosystem will increase the amount of algae within that ecosystem. When the amount of algae is increased, the aquatic organisms will have a LOT of food source which will increase the growth rate within their population.
The TSW (Tsunami Warning System) is located in the Pacific Ocean and 26 different
countries collaborate to keep us safe in case of seismic activity threatening to create
a tsunami.
A. True
B. False
I'm pretty sure it's false if it isn't you can give me a low grade.
Answer:
True
Explanation:
who discovered penicillin from plant
Answer:
Alexander Fleming discovered penicillin from plant.
In adults, the lung does not normally grow larger or regenerate cells.
Based on this knowledge, most adult lung cells would be expected to:
Answer:
Based on a simple inference, it could be anything but eh:
Adault lung cells would be expected to deteriroate over time at they do not have the ability to regenerate or heal themselves.
Body systems rarely work independently of one another. For example, the muscular system
works closely with other body systems to maintain homeostasis. Muscle cells require a
constant supply of oxygen so that the muscles can contract. Which body systems are
responsible for providing oxygen to the cells in the system?
Answer:
The circulatory system, and respiratory
Which of the following statements about chromosomes is true?
Question 6 options:
eukaryotic cells only have one chromosome
chromosomes can be found in any cell at anytime
different organisms have different numbers of chromosomes
the chromosomes in a bacteria cell can be found in the nucleus
Answer: different organisms have different chromosome numbers
Explanation: eukaryote cells have more than one chromosome
chromosomes are present in most cells all the time (not in erythrocytes), but cannot be visualised except during telophase of mitosis or meisosis
bacterial cells don’t have a nucleus
High pressure areas are created around the poles as cold air
A. Rises
B. Blows
C. Stagnates
D. Sinks
Answer:
Sinks is the answer hope it helps
Answer: sinks
Explanation: hope it helps
Which of the following describes an example of a protozoa?
Red Algae causing red tide
Ciliate organism causing diarrhea
Giant kelp causing huge ocean forests
Water mold causing destruction of crops
Answer:
Giant kelp causing huge ocean forests
Explanation:
Even though they look like very tall ocean grass that covers the floor and looks stunning it is actually not a plant. It is instead a brown alga and is part of the huge kingdom of life known as Protista. Even though most protozoa are single-celled giant kelp is not. It is a large and complex organism and is the largest protist in the world that we know of.
Answer:
2
Explanation:
Yasmine states that tapeworms are common parasites of goats. Walter claims that the relationship between a tapeworm and goat should be classified as predator and prey. Which fact about tapeworms and goats is MOST useful for Yasmine to cite to refute Walter's claim? A. Tapeworms get their energy from food that they obtain from goats. B. Tapeworms benefit from their relationship with goats. C. Goats do not benefit from their relationship with tapeworms. D. Tapeworms live inside a goat's body in a close relationship with the goat.
Answer:
Tapeworms live inside a goat's body in a close relationship with the goat.
Explanation:
just took the test
please give the brainiest to me because I am right
Oxygen
Sugar
Peninoss
Water
Wastes
Coben choxide
Wastat
In the illustration above, the plasma membrane is allowing amino acids, oxygen, and sugar to
enter while it is releasing wastes. Which of the following best describes the action of the
plasma membrane?
Answer:
oxygen because oxygen is the life supporting component of the air
List three activities of a cell that help it live
Answer:
1. The use of ATP, also known as the enegy currency of the cell. Cellular functions need ATP to survive.
2. Cell division. Cells need to reproduce for repairing tisues, healing, and more.
3. Active and passive transport. This is important to control what gets in and out of the cell. The selectively permeable membrane is responsible for this process.
Hope this helps! :)
Metabolism, respiration, and reproduction are essential activities that help a cell to live and carry out its functions.
What help cells live?Cells have several mechanisms that help them live and carry out their functions. Metabolism, which involves the chemical reactions that occur within a cell, provides the energy and raw materials necessary for life processes. Respiration, the process of converting glucose and oxygen into ATP, also provides energy for the cell.
Cells also have various organelles, such as mitochondria, lysosomes, and ribosomes, that perform specific functions, including energy production, waste removal, and protein synthesis. Additionally, cells have the ability to respond to their environment, adapt to changing conditions, and reproduce to maintain their population.
Furthermore, the genetic material in cells provides instructions for all cellular processes and plays a critical role in the development and maintenance of an organism. In summary, cells have several mechanisms and processes that help them live, function, and contribute to the overall health and survival of the organism.
Learn more about cells, here:
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How many more phases occur during meiosis than during mitosis? none two four six
Answer:
4
Explanation:
please give me brainliest
According to the Punnett square, offspring from these two parents have a ____________ chance of inheriting one B allele and one b allele. Individuals that inherit these two alleles are ____________ for the B gene. Inheriting Bb confers the ____________ of brown eyes.
Answer:
Explanation:
50%, heterozygous, phenotype
Yeast, a single-celled organism, uses cellular respiration in order to produce ATP. What is a byproduct made during respiration for yeast? 1. C6H12O6 2. CO2 3. Oxygen 4. Fructose
Answer:
Byproduct: option 2 (CO2)
Option 2. CO2.
In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts.
What is cellular respiration?Cellular respiration is a series of chemical reactions that break down glucose to produce ATP, which can then be used as energy to power a variety of reactions throughout the body. Cellular respiration consists of three major steps: glycolysis, the citric acid cycle, and oxidative phosphorylation.Adenosine triphosphate (ATP) is the cellular energy source for use and storage. ATP is a nucleoside triphosphate with the structure of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups.To learn more about : Cellular respiration
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Identify the number of the organelle in the diagram that is called powerhouse of cell
Answer:
A mitochondrion is a round to oval-shaped organelle found in the cells of almost all eukaryotic organisms. It produces energy, known as ATP, for the cell through a series of chemical reactions