Answer:
In eukaryotes, it is well known that polyadenylation is required to produce the mature messenger RNA (mRNA) molecule and it provides stability to the mRNA during translation initiation. In prokaryotic organisms, polyadenylation is required for the degradation of the mRNA in a mechanism that involves three steps: endonucleolytic cleavage, polyadenylation and exonucleolytic degradation. Moreover, it is also important to note that no evidence of polyadenylation has bee reported in some prokaryotes including the halophilic bacteria Haloferax volcanic (Slomovic et al. 2005).
Citation:
Slomovic, S., Laufer, D., Geiger, D., & Schuster, G. (2005). Polyadenylation and degradation of human mitochondrial RNA: the prokaryotic past leaves its mark. Molecular and cellular biology, 25(15), 6427-6435.
How does an artificial pacemaker work?
A pacemaker helps monitor and control your heartbeat. The electrodes detect your heart's electrical activity and send data through the wires to the computer in the generator. If your heart rhythm is abnormal, the computer will direct the generator to send electrical pulses to your heart.
Please help
this is urgent
Answer:
if I knew what this was I honestly would help you
how is silk extracted from cocoons?
Aerobic Respiration takes place in the _________.
A. molecules
B. mitochondrion
C. stomata
Answer:
B
Explanation:
The structure of the mitochondrion is key to the process of aerobic (in the presence of oxygen) cellular respiration, especially the Krebs cycle and electron transport.
carbon dioxide + water =
DNA carries the instructions to make _____.
Answer:
They make new sells in your body.
Answer:
Proteins
Explanation:
DNA carries the instructions to make PROTEINS.
The heliocentric system gained support when Galileo observed that
Answer:
Venus goes through phases similar to those of Earth's moon. Hope this helps out.
Explanation:
Which of these is one way that seismologists compare earthquakes?
A. By counting the number of tsunamis
B. By measuring their pyroclastic flow
C.By assigning them a magnitude between 1 and 10
D. By measuring their elastic rebound
PLEASE HELP ME!!
Answer:
by counting the number of tsunami
Explanation:
what i think is that the tsunami earth quakes are particularly destractive and dangerous because the massive tsunami waves and there way was to determine that an event is a tsunami earth quakes in time to warn people that there was an expectedly large waves.
Seismologists are professionals in geology that compare earthquakes by measuring their elastic rebound (option D).
What is an elastic rebound?The elastic-rebound can be defined as the amount of energy (or energy transfer) that can be generated by earthquakes.
Seismologists are professionals in geology that compare earthquakes by using this type of measurement.In conclusion, seismologists are professionals in geology that compare earthquakes by measuring their elastic rebound (option D).
Learn more in:
https://brainly.com/question/395071
Question 9
Which of the following can be broken down during cellular respiration to make ATP?
a. proteins
b. lipids
c. saccharides
d. a and b
e. a, b, and c
Answer:
lipids (i think) :))
Explanation:
How does the water needed to carry out photosynthesis get to leaves?
Answer:
The xylem
Explanation:
The xylem in the stem transports water and minerals from the ground up the plants, and into cells in the leaves so that photosynthesis can be carried out.
What are these panels used for?
O A. To produce a fission reaction
B. To create electricity from solar energy
O C. To transform energy from moving water
O D. To convert electricity into less usable energy
Answer: b
Explanation: I believe these are solar panels
Computers would also help kids apply for schools and jobs.
Which of the following is relevant evidence supporting the
claim?
Students who want to go to Brentview
Arts must fill out an online application.
Our parents say Brentview Arts
Magnet School is one of the best
schools in the neighborhood.
Many of us plan to look for part-time
jobs in the summer,
The school also asks for
recommendations, but these can be
sent in by regular mail.
Answer:
students who want to go to Brentview Arts must fill out an online application
Explanation:
if the only way to get into Brentview Arts is by doing an application online, then computers would help those students. They can't send it through the mail so the computer would be their only resource
Which sequence best represent the transfer of energy between these organism
Explanation:
plants > herbivorous insects > predaceous insects > toads.
¿Cómo es el átomo, de acuerdo con el modelo de pudín de pasas?
Answer:
La respuesta correcta es "el átomo esta compuesto por electrones de carga negativa embebidos dentro de un protón positivo, tal como un pudín de pasas".
Explanation:
El modelo atómico de Thomson, también conocido como el modelo de pudín de pasas, describe el átomo como un elemento compuesto por electrones de carga negativa embebidos dentro de una nube de carga positiva, tal como un pudín de pasas. Thomson fue el científico que descubrió los electrones en 1904, año en el que no se tenía mucha información aún de la interacción de las partículas subatómicas. En el modelo atómico de Thomson los electrones estaban distribuidos uniformemente, flotando alrededor de una nube de carga positiva.
A mining company is interested in monazite, a mineral substance that forms in igneous rock in Earth’s interior. They think they found a lot of monazite in a sedimentary rock formation at Earth’s surface. Could this really be monazite? If so, how could the monazite have become part of sedimentary rock?
Answer:
Yes, it could have been monazite.
Monazite could have become part of sedimentary rock because it is formed during the metamorphosim of clastic sedimentary rocks. It is a resistant minerals that is found in weathered rocks debris which become concentrated and they are part of the soils and sediments found near weathered rocks.
Explanation:
Monazites are phosphate minerals that are found im small grains as accessory in igneous rocks and sedimentary rocks. It is formed during the crystallization of igneous rock and metamorphosim of clastic sedimentary rocks.
It is a resistant minerals that found in weathered rocks debris and become concentrated in sediments near weathered rocks.
Explain the effect of temperature and pH on enzyme action.
Needs to be done ASAP.
Answer:
enzymes loose their form in both unsuitable ph and temprature.
Explanation:
at very high tempratures enzyme molecules denatures due to high speed movements, at low tempratures enzymes works too slow to be useful enough.
low ph solotions contain lot of H+ and high ph solutions have few H+ , and the number of these H+ ions have polar effects on enzymes. some Enzymes like pepsin works perfect in acidic environment ( ph=2) while others might work at high ph or average ph( like Trypsin works well at ph=7).
Which one of these contains an atom of phosphorus?
Nitrogenous base Pentose Sugar Phosphate Group
The sun is located at one of the two___ in the shape of earth’s orbital path.
Answer:
foci
Explanation:
Needed ASAP
The point where the lever rocks back and forth is called _______ or ________
Answer: the fulcrum
i don't know the other one
Which component of a DNA synthesis reaction is an enzyme?
Answer:
DNA polymerase
The enzyme that synthesizes DNA, DNA polymerase, can only add nucleotides to an already existing strand or primer of DNA or RNA that is base paired with the template. An enzyme, DNA polymerase, is required for the covalent joining of the incoming nucleotide to the primer.
Explanation:
hope it helps!
match each part of a cell to its structural features.
1.lager size in plant cells----->
2.salt and water base----->
3.grainy appearance----->
4.permeable and flexible---->
a.cytoplasm
b.cell membrane
c.rough endoplasmic reticulum
d.vacuole
Answer:
1)vacuole covers most part in a plant cell
2)cytoplasm is a salty and water base
3)rough endoplasmic reticulum has a grainy appearance
4)The cell membrane is flexible and semi-permeable
Answer:
)vacuole covers most part in a plant cell
2)cytoplasm is a salty and water base
3)rough endoplasmic reticulum has a grainy appearance
4)The cell membrane is flexible and semi-permeable
Explanation:
Which component of a DNA synthesis reaction determines the exact nucleotide sequence of the product?
Answer:
The complementary base pairing between incoming nucleotides and the DNA template
Explanation:
In a DNA synthesis reaction, the exact nucleotide sequence of the product is basically determined by both the DNA template from which a new strand is made and the incoming new nucleotides that makes up the new DNA strands. A complementary base Paris between these two gives the nucleotide sequence of the product.
Regulating the manufacture of
is the function of RNA.
protein
cells
energy
Answer:
The correct answer is option A, that is, proteins. RNA functions to transform the directions found in messenger RNA into the chain of amino acids, which forms the proteins. Thus, the ribosome is accountable for the production of proteins.
HOPE IT HELPS : D
Explanation:
How are rna and dna used to make proteins
Answer:
During the process of transcription, the information stored in a gene's DNA is transferred to a similar molecule called RNA (ribonucleic acid) in the cell nucleus. ... A type of RNA called transfer RNA (tRNA) assembles the protein, one amino acid at a time.
hope it helps : )
Explanation:
Cell theory states that all living things contain one or more cells. Why do you think cell theory meets the definition of
a scientific theory? Do you think it should be a scientific law? Explain your response.
Yes. Scientific laws are established statements, based on repeated experiments or observation of a particular scenario or natural events while a science theory are events or explanation of the natural world that can be repeatedly tested and verified using scientific method. That is, for it to be a Scientific Theory we must be able to test and verify it using scientific methods and for it to be a Scientific Law it must have been tested and verified repeatedly using scientific methods. Cell theory is a tested and verified experiment
what does the m stand for in interphase
Answer:
I believe the answer is mitosis
Explanation:
Hope this helps.
Use the drop-down menus below to identify the organ(s) that is/are responsible for each function of the
excretory system.
releases excess heat from body
reabsorb water to maintain normal composition and volume of blood
and fluids and prevent dehydration
excrete wastes that balance salt
Explanation:
releases excess heat from the body, which would be sweat glands, excretory system/
reabsorb h2o 2 maintain norm. composition, volume of blood=kidneys.
Answer:
1.skin
2.kidneys and large intestine
3.skin, large intestine, and kidneys
Explanation: got it right
(1) What will be the frequency of the recessive allele in a population of 100 kangaroos if there are 50 dominant alleles?
a. 150
b. 0.75
c. 0.50
d. 0.25
(2) If the frequency of the recessive allele for a gene is 0.3, calculate the expected frequency of heterozygotes in the next generation if the population is in Hardy-Weinberg equilibrium.
a. 0.42
b. 0.21
c. 0.70
d. 0.30
Answer:
1. Option c
2. Option a
Explanation:
1. If there are 50 dominant alleles, this represent the frequency of dominant alleles p = 50/100 = 0.5
Using the formula p+q = 1 we can solve for the frequency of the recessive alleles q = 1 -0.5 = 0.5 = 50%.
2. the frequency of the recessive allele for a gene is 0.3 which is q = 0.3
From the Formula p + q = 1 we can solve for p the frequency of the dominant alleles = 1 - 0.3 = 0.7
To calculate for the number of heterozygotes, we use 2pq = 2 x 0.7 x 0.3 = 0.42
Groups of ecosystems that have the same climate and dominant species
are known as *
1 pa
Populations
Habitats
Ecosystems
Biomes
Answer: 4)Biomes
Explanation:
Groups of ecosystems that have the same climate and dominant species
are known as biomes, e.g. tundra or rainforest biomes.
Question 3 of 10
2 Points
When can exponential growth happen?
O A. When there is unlimited food and space
B. When the death rate is high
C. When carrying capacity is reached
D. When there is competition for resources
Answer: when there is Unlimited food and space
Explanation:
When there is unlimited food and space. Exponential growth occurs when a population has unlimited resources, such as food and space, and there are no limiting factors such as predation, disease, or competition for resources. In such a scenario, the population will continue to grow at an accelerating rate without reaching a carrying capacity. Hence option A is correct.
What is exponential growth?
Exponential growth can occur when there are no limiting factors that affect the population size. This means that the population has access to unlimited resources such as food, water, and space. In this scenario, the birth rate exceeds the death rate, and the population grows at an increasing rate over time.
As the population grows larger, the rate of growth also increases, resulting in a J-shaped curve on a graph.
However, in the real world, exponential growth is limited by factors such as predation, disease, competition for resources, and environmental factors like weather and natural disasters.
When these limiting factors are present, the growth rate of the population slows down, and the population may eventually reach a maximum size that the environment can support, known as the carrying capacity.
At this point, the population growth rate slows down to zero, and the population size stabilizes at or around the carrying capacity.
Hence option A is correct.
To know more about exponential growth:
https://brainly.com/question/1596693
#SPJ7
