Answer: RNA polymerase
Explanation:
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
Which correctly describes crossing over?
a.)the process whereby nonsister chromatids exchange genetic material
b.)the process whereby homologous chromosomes are pulled to opposite poles of the cell
c.)the process whereby sister chromatids are pulled to opposite poles of the cell
d.)the process whereby homologous chromosome pairs align randomly along the metaphase plate
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To produce the highest possible oxygen concentration in the blood, gas exchange occurs in
only one direction at the respiratory membrane-from the lung to the blood.
O True
O False
Answer:
True
Explanation:
Answer:
false
Explanation:
The oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels. This is known as diffusion. The oxygen in the blood is then carried around the body in the bloodstream, reaching every cell. When oxygen passes into the bloodstream, carbon dioxide leaves it.
what is the lagging strand synthesized by?
Answer: Unlike leading strands, lagging strands are synthesized as discrete short DNA fragments, termed 'Okazaki fragments' which are later joined to form continuous duplex DNA. Synthesis of an Okazaki fragment begins with a primer RNA-DNA made by polymerase (Pol) α-primase.
Explanation:
how to get sick with fever fast
Answer: Over exhaust your self and stay up for two days no sleep.
a flea and dog are a. example of
Answer:
Parasitism
Explanation:
A flea and a dog go with this example because a flea irritates the dogs skin and feeds on its blood. (Just like how some sea animals carry bacterial diseases. Like Shrimp or something)
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what makes terrestrial different
Answer:
Terrestrial planets are Earth-like planets made up of rocks or metals with a hard surface. Terrestrial planets also have a molten heavy-metal core, few moons and topological features such as valleys, volcanoes and craters.
Explanation:
Is that what your talking about?
The generation of a knock-out organism generally requires all the following EXCEPT ________. The generation of a knock-out organism generally requires all the following EXCEPT ________. knowledge of the sequence product embryonic stem cells knowledge of the target sequence a targeting vector
Answer:
knowledge of the sequence product
Explanation:
A gene knockout is a technique used in molecular genetics to deactivate target genes in an organism in order to study their functions by reverse genetics (i.e., gene loss). Knockouts are generated by different methods including, for example, homologous recombination or site-specific nucleases (zinc-fingers, TALENS, CRISPR/Cas9). These techniques require to know a priori the sequence of each gene to be knocked out in order to target desired mutations. In the last years, the CRISPR/Cas9 tool has gained attention to knockout genes of interest because it is a genome editing system that can be easily used for deletion or insertion of bases.
13. Keep a
to help you identify trends in your fitness habits that are particularly effective. (1 point)
grade book
sharp memory
video blog
fitness journal
Why dont solar eclipses happen every time the moon is in between the sun and the Earth?
Answer:
because the moon doesn't line up exactly between the sun and the earth every time it passes.
Explanation:
A solar eclipse can only occur when the Moon is close enough to the ecliptic plane during a new moon. ... Total solar eclipses are rare at any particular location because totality exists only along a narrow path on the Earth's surface traced by the Moon's full shadow or umbra. An eclipse is a natural phenomenon.
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What compound do plants get from their roots for photosynthesis?
options:✨✨✨
Carbon Dioxide
Oxygen
Glucose
Water
Sucrose is an organic compound made by plants for quick energy.
What type of organic compound is sucrose?
(a.protein
(b.carbohydrate
(c.lipid
(d.nucleic acid
Which of these statements about the world's food supply is most accurate? A. Overnutrition is greater world problem than undernutrition. B. Food is more expensive than in the pre-1970 world. C. Some food is diverted for use as fuel. D. Less food per person is produced today than in the past.
Answer:
C. some food is diverted for use of fuel
What is detritivores
Answer:
An animal which feeds on dead organic material, especially plant detritus.
Explanation:
Detritivores, are heterotrophs that obtain nutrients by consuming detritus. There are many kinds of invertebrates, vertebrates and plants that carry out coprophagy. By doing so, all these detritivores contribute to decomposition and the nutrient cycles.
Starting with the basic building blocks, which is the correct order of levels of organization of complex organisms?
A. organ systems --> cells --> tissues --> organs
B. cells --> tissues --> organs --> organ systems
C. tissues --> organs --> organ systems --> cells
D. organs --> organ systems --> cells --> tissues
Answer:
A
Explanation:
i need help on this please ASAP
Answer:
What's the question? Its not written here
Answer:
Where is the question?
Explanation:
What term is used to describe the number of individuals moving into a population?
Type 1 diabetes is caused by destruction of beta cells in the pancreas that produce insulin. Which of the following best explains why a person with this disease needs medication?
a. Medication is needed to act as a signaling molecule to activate the signal transduction pathway.
b. Medication is needed to allow alternate signaling transduction pathways to control glucose levels.
c. Medication is needed to open channels to allow signaling molecules to enter pancreatic cells.
d. Medication is needed to serve as second messengers to regulate glucose uptake by cells.
Answer:
the answer is a. Medication is needed to act as a signaling molecule to activate the signal transduction pathway.
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Medication is needed to act as a signaling molecule to activate the signal transduction pathway. So, the correct option is (A).
What is Type 1 Diabetes?Type 1 diabetes also called insulin-dependent or juvenile diabetes which is usually develops in children, adolescents, and young adults, but it can occur at any age. A condition in which the immune system destroys the insulin-producing cells in the pancreas. These are called beta cells.
There are several signs of type 1 Diabetes which include:
Extreme thirstIncreased hungerDry mouthUpset stomach and vomitingFrequent urinationWhen a person suffering from this disease needs medication which is need to act as signaling molecule to activate the signal transduction pathway. Type 1 Diabetes is characterized by a progressive loss of insulin-producing β-cells in the islets of the pancreas. Immune destruction of β-cells is partly mediated by high levels of pro-inflammatory cytokines.
Thus, medication is needed to act as a signaling molecule to activate the signal transduction pathway. So, the correct option is (A).
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What are three statements mentioned in the video that are included in the cell theory?
Answer:
1. all living things are composed of cells,
2. cells are the basic units of structure and function in living things.
3. new cells are produced from existing cells.
C personalities are organized and controlled. They take their time completing tasks accurately, like to research things thoroughly, and are always prepared. Because they put so much time and effort into everything they do, they hate to be criticized. They are perfectionists at heart and take even the smallest complaint personally. This makes them extremely difficult to confront. The best way to approach it is to focus on parts of the problem largely out of the C personality’s control or aspects of the problem they might not have considered. Make it clear that you appreciate all of their efforts and that you’re bringing something to their attention because it’s a variable that they need to have in the equation in the future. No matter what, don’t frame the conflict as a personal attack. If you do, the C personality will likely become resentful and go out of their way to avoid future interactions with you....!!!!!!
what type of bone is the femur?
A. short bone
B. flat bone
C. long bone
D. irregular bone
Answer:
It is a long bone.
Explanation:
This meaning that it is greater in width, while the patella, a sesamoid bone, is small and round.
n
Which type of energy refers to the sum of potential and kinetic energies in the particles of a substance?
SERE
motion
stored
internal
heat
Answer:
internal energy.
Which describes a altocumulus cloud?
a.
high, feathery cloud
c.
low storm cloud
b.
puffy mid-level cloud
d.
high cloud made of ice crystals
Please select the best answer from the choices provided
A
B
C
D
Answer:
B. Puffy mid-level cloud
What are some changes that can occur in ecosystems?
Answer:
Some changes that can occur in ecosystems are seasons, tide cycles, population sizes, succession, evolution, landscape changes, and climate changes.
Explanation:
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What human activity provides a reasonable analogy for the movement of kinesin molecules along microtubules?a. running on a treadmill.b. climbing a rope hand over hand.c. shooting a fire hose at a beach ball.d. being one of many rowers in a boat .
Answer:
The correct answer is - option. b climbing a rope hand over hand is correct
Explanation:
The movement of the kinesin molecules led by the head of one kinesin followed by the second one after another same as one hand moves on the rope at a time and followed by the other hand during climbing the rope.
The movement of the kinesin microfilament is due to the increased affinity by ATP of the head of the kinesin for the microtubule. However, the hydrolysis of ATP decreases its affinity so it slides or moves to the plus end.
URGENT PLEASE HURRY
Answer:
starting point 3 traveling at a velocity of 15 I think
Explanation:
sorry if you get it wrong
help idk this answer
Answer:
d
Explanation:
Scientists studying hair samples can tell how long it has been since someone dyed or bleached their hair.
O True
O False
Forensics
Why do you think prokaryotic cells do not have all the organelles that eukaryotic cells do? What does this tell you about prokaryotic cells?
Answer:
Explanation:
A prokaryotic cell is a type of cell that does not have a true nucleus or membrane-bound organelles. Organisms within the domains Bacteria and Archaea are based on the prokaryotic cell, while all other forms of life are eukaryotic
A prokaryotic is a primitive cell that lacks organelles, unlike the eukaryotic cells, and are simple organisms.
What are prokaryotes?Prokaryotes are organisms that are simple and evolved before the complex eukaryote. They include bacteria and archaea that are simple and lack organelles that are found in eukaryotes.
They do not have a nucleus and rather have their genetic material disposed of as nucleoids in the center of the cell that undergoes the simple process of the central dogma.
The simple cellular processes and reproductive methods are the reason they lack many organelles. This tells that prokaryotes are simple and primitive types of cells.
Therefore, prokaryotes lack a distinct nucleus.
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A car moves with an initial velocity of 15 m s-1 and accelerates with constant acceleration 4 m s-
2 for 50 seconds. What is the total distance travelled?
which is a characteristic of pseudoscience
resistance to change
continually changing
involves a step-by-step method
updated by new technology
Answer:
a
Explanation:
i took the test