How many stop codons are there
Answers
Answer:
3 stop codons
Answer:
There are 3 stop codons.
Explanation:
Related Questions
transcription is the assembly of an amino acid chain according to the sequence of base triplets in a transfer rna molecule.
Answers
The translation is the assembly of an amino acid chain according to the sequence of base triplets in a transfer RNA molecule. Not transcription.
So, the given statement is false.
The process during which small subunits of ribosomes assemble together and shape up in the form of a sandwich-like appearance is called translation.
During this process, they congregate on the mRNA strand and attract the molecule of transfer RNA (tRNA) which is strongly bound to amino acid molecules.
After this, ribosomes translate the sequence of mRNA and convert the info. into a long chain of polypeptides also known as a complex protein structure. It is made up of amino acid units.
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phylogenomic analysis of the parrots of the world distinguishes artifactual from biological sources of gene tree discordance
Answers
The correct answer is heterogeneous levels of phylogenetic signal among individuals within datasets may cause artifactual sources of topological discordance.
Individuals with varying levels of phylogenetic signal within datasets may be artifactual sources of topological discordance. We investigated how the information content of tips and subclades influences topological discordance in the parrots (Order: Psittaciformes), a diverse and critically endangered clade of nearly 400 species. We estimated concatenated and species trees for 382 ingroup taxa using ultra conserved elements from 96% of the clade's species-level diversity. We discovered that discordance between tree topologies was most common at nodes dating from the late Miocene to the Pliocene, and frequently at the taxonomic level of genus. a better predictor of metrics supporting alternative topologies.
The complete question is- What is phylogenomic analysis of the parrots of the world distinguishes artifactual from biological sources of gene tree discordance. explain?
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Which description characterizes a stable ecosystem?
a wide variety of organsims
one organism
two organisms
a low variety of organisms
Answers
Answer:
a low variety of organisms
Explanation:
if there are too many there would be no food if there are too little there would be a small amount of food.
Answer:
THANKS FOR THE POINTS I WILL USE THEM
Explanation:
How can a mutation affect protein synthesis by a cell? do you think there are different consequences if it happens in a gamete cell (sperm or egg) versus a non-gamete cell?
Answers
A mutation affects protein synthesis by a cell by changing the instructions of genes for making a protein, as a variant can cause a protein to malfunction or not to be produced at all. Yes, there are different consequences if it happens in a gamete cell versus a non-gamete cell.
The mutation affects protein synthesis in a cell due to the involvement of genes as they are responsible for coding proteins, needed for all of the functions of the body and to build strong body structures. So, a mutation that is affecting could change the way how a protein is made.
If a mutation occurs in cells that are making gametes by the process of meiosis or during the meiosis process itself, it has the chance to be passed on to the next offspring and will contribute to the condition of genetic variability of a particular population. Mutations are considered the sole source of genetic variability that may have the chance to occur in asexual reproduction.
If a gene is made to alter in a germ cell, then the mutation will be termed germinal mutation because germ cells will give rise to gametes so that some gametes will carry the process of mutation and can be passed on to the subsequent generations.
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status, trends, and equilibrium abundance estimates of the translocated sea otter population in washington state
Answers
Prior to their local extinction in the early 1900s as a result of the marine fur trade, sea otters (Enhydra lutris kenyoni) once lived in Washington State, USA.
After being extinct, 59 sea otters were brought from Amchitka Island in Alaska, USA, to the coast of Washington. Of these, 29 were released in 1969 at Point Grenville and 30 in 1970 at La Push.
Estimates of the translocated sea otter population's status, trends, and equilibrium abundance in Washington StateA chosen sample level and a target geographic distribution are the two key goals set forth by the Washington Department of Fish and Wildlife for the recovery of sea otters. Estimations of these characteristics have significant management consequences because recovery requirements are dependent on estimates of populations abundance, equilibrium abundance, and geographic distribution. In order to assess history and present abundance as well as equilibrium abundance at various spatial scales, we collated all survey data for sea otters that have been recorded in Washington State since their relocation (1977–2019). As a foundation for a sensitivity analysis to gauge the relative impact of movement behavior, in Journal of Wildlife Management, we then utilized forward predictions of population dynamics to investigate different scenarios of range recolonization.learn more about sea otters here
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How do sediments eroded by water become more smooth and round
Answers
Answer: Liquid water is the major agent of erosion on Earth. Rain, rivers, floods, lakes, and the ocean carry away bits of soil and sand and slowly wash away the sediment causing it to become more round and smooth.
I hope this helps!
Answer:
through friction.
Explanation:
The sediments rub together to become smoother. Sediments that are transported in a mass by water or stream are in motion with respect to the motion of the stream water. They bump into each other which makes extruding parts vulnerable to getting knocked off which makes these particles round.
The two stages which make up the process of photosynthesis
are the light reactions and the ____
cycle.
Answers
Energy flow in an ecosystem is best represented by _______. a. the predator/prey relationship b. food chains c. food webs d. autotrophs please select the best answer from the choices provided a b c d
Answers
Energy flow in an ecosystem is best represented by c. food webs.
In the field of ecology, we can describe the food web as a representation of all the food chains of a particular ecosystem.
In an ecosystem, there are many organisms that act as prey and predators for each other through which energy flows in the ecosystem.
As a food web will represent all the prey as well as predator organisms and also depict what eats what, hence the energy flow in an ecosystem can best be represented by food webs.
Other options, such as food chain, are not correct as a food chain is a representation of a single energy flow system of an ecosystem. To determine the energy flow of the whole ecosystem, a food web is required.
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Answer:
c. food webs
Explanation:
Which reactant of photosynthesis is also involved in climate change?
A oxygen
B carbon dioxide
C water
D sugar
Answers
Answer:
B. Carbon dioxide
Explanation:
First of all, let’s write out the photosynthesis equation to identify the products and reactants.
6CO2 + 6H2O + energy —> C6H12O6 + 6H2O
In a chemical equation with the arrow pointing right, the reactants are on the left and the products on the right.
In photosynthesis, the reactants, carbon dioxide, water, and energy, react to form the products of glucose (sugar) and oxygen.
Now, let’s look at the answer choices. We can automatically eliminate choices A (oxygen) and D (sugar) because they are products.
We are left with B (carbon dioxide) and C (water). Water isn’t really considered a major contributor to climate change. Carbon dioxide is a greenhouse gas that traps heat in the atmosphere, causing climate change.
Therefore, the best answer choice is B. Carbon dioxide
moderate temperatures and precipitation, as well as nutrient-rich soil due to annual leaf fall, characterize this biome.
Answers
Moderate temperatures and precipitation, as well as nutrient-rich soil due to annual leaf fall, is characteristic of deciduous forest.
What exactly is a deciduous forest?A forest that is mostly composed of trees that lose their leaves in the fall is known as a deciduous forest. Among the varieties of deciduous trees found in Wyoming are aspen, cottonwood, box elder, ash, mountain ash, poplars, willows, fruit trees such the wild plum, and, less frequently, oak and maple. Temperate deciduous woodlands are located in mid-latitude zones, or the areas between the arctic regions and the tropics. This area has four distinct seasons since the deciduous forest areas are exposed to both warm and cold air masses.
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wild animal attack is which type of disaster
(a) biological
(b) geological
please help me
Answers
Wild animal attacks should qualify as biological disasters rather than geological disasters.
Disasters generally refer to accidents that happen rather suddenly and result in widespread damages or loss of lives
Biological disasters are disasters whose causes have biological origins such as plants, animals, humans, and microbes.Geographical disasters are caused by natural geographical events such as landslides, cyclones, hurricanes, volcanic eruptions, and so on.Wild animals are biological organisms, hence, an attack from them would be a biological disaster.
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7. Which statement is correct?
1. Nitrogen must cycle through an ecosystem because it is used to make
proteins and nucleic acids.
2. Nitrogen makes up most of Earth's atmosphere.
3. Nitrogen gas from the atmosphere cannot be used by plants to make organic
compounds.
4. all of the above
Answers
what are the three most basic functions of nutrients? regulate metabolic reactions, detoxify life-threatening substances, provide materials for body structure activate compounds to prevent malnutrition, provide materials for body structure, provide energy for body processes detoxify life-threatening substances, activate compounds to prevent malnutrition, regulate metabolic reactions provide materials for body structure, serve as regulators of metabolic reactions, may provide energy for body processes
Answers
The three basic functions of nutrients are:
1. serve as regulators of metabolic reactions
2. provide energy for body processes
5. provide materials for body structure.
The correct options are 1,2,5.
The body need nutrients, chemical substances found in food, to function effectively and preserve health. Proteins, lipids, carbs, vitamins, and minerals are a few examples. Source: Office of Dietary Supplements, National Institutes of Health.
Three primary roles that nutrients play in the body include: supplying energy, supporting bodily structure, and/or controlling chemical reactions. These fundamental processes let us to move, expel waste, breathe, develop, and reproduce as well as sense and react to our surroundings.
The complete question is:
what are the most basic functions of nutrients?
1. serve as regulators of metabolic reactions
2. provide energy for body processes
3. activate compounds to prevent cancer
4. detoxify life-threatening substances
5. provide materials for body structure
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Which bacteria produces 2 daughter cells every 20 minutes?
Answers
Answer:
The bacterium Escherichia coli
A student draws a model of cells in a solution. The arrows indicate the direction water will move with respect to each of the cells.
In which type of solution are the cells?
Answers
Answer:isotoni
Explanation:
Answer:
isotonic
Explanation:
10. shields cl, dalvin la, lim ls, et al. circumscribed choroidal hemangioma: visual outcome in the pre-photodynamic therapy (pdt) vs pdt eras in 458 cases. retina. in press. 2019.
Answers
Purpose
To investigate features and outcomes of circumscribed choroidal hemangioma by patient age.
Methods
Retrospective review of circumscribed choroidal hemangioma from 3/29/1967–6/4/2018 based on age at presentation (≤20 vs. >20–50 vs. >50 years).
Results
There had been 458 circumscribed choroidal hemangiomas diagnosed at mean age (13 vs. forty one vs. 64 years, p < 0.001). The youngest age crew had worse offering visible acuity (20/400 vs. 20/150 vs. 20/100, p < 0.001), larger tumor basal diameter (13.5 vs. 6.6 vs. 6.2, p < 0.001), greater tumor thickness (5.8 vs. 3.1 vs. 2.9, p < 0.001), closer distance to foveola (0.5 vs. 1.4 vs. 1.2, p = 0.03), and larger extent of subretinal fluid (4 quadrants, 26% vs. 8% vs. 2%, p < 0.001). The youngest sufferers have been much less likely to be treated with important remark (39% vs. 39% vs. 56%) or photodynamic therapy (10% vs. 27% vs. 22%) and extra probably to be dealt with with plaque radiotherapy (26% vs. 6% vs. 3%) or exterior beam radiotherapy (13% vs. 1% vs. 0%) (p < 0.001). The youngest sufferers required higher total range of redress (mean 4 vs. 2 vs. 1, p < 0.001). At mean follow-up (44 vs. 68 vs. 60 months, p = 0.37), the youngest patients had worse visible acuity (20/400 vs. 20/200 vs. 20/100, p = 0.03), however no distinction in visible acuity loss of 3 or extra Snellen lines (27% vs. 13% vs. 16%, p = 0.55).
Conclusion
Younger patients (≤20 years) with circumscribed choroidal hemangioma existing with worse visible acuity and larger, greater posterior tumors. Future studies are wanted to improve early detection and cure for this subgroup of patients.
A hemangioma is a shiny purple birthmark that shows up at beginning or in the first or 2nd week of life. It appears like a rubbery bump and is made up of more blood vessels in the skin. A hemangioma can manifest anywhere on the body, but most generally appears on the face, scalp, chest or again .
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certain vitamins or provitamins have antioxidant properties that help protect against free radical damage to cells. check all of the following substances that have antioxidant activity.
Answers
Vitamin C, Vitamin E, and beta-carotene have antioxidant properties that help protect against free radical damage to cells.
Free radicals are unstable chemicals that the body creates in response to external and other stresses, and antioxidants are compounds that can stop or decrease the damage that free radicals do to cells. The origins of antioxidants could be either natural or synthetic, and they are sometimes referred to as "free-radical scavengers." A carotenoid is a class of chemical that includes beta-carotene. Plants that are reddish-violet in hue, such carrot, sweet potatoes, and apricots, contain carotenoids. Among provitamins is beta-carotene. It follows that your body uses it to produce vitamin A. Both vitamin C and vitamin E have antioxidant properties. Water-soluble vitamins are more easily retained in tissues because they are directly taken into the blood.
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A. crossing over
B. genetic drift
C. law of dominance
D. random segregation
E. independent assortment
Sexual reproduction promotes genetic variation. One way variation occurs is via the production of gametes during meiosis. Sexual organism are the product of sperm and egg, receiving chromosomes from both parents. But what mechanisms are at work during meiosis to promote genetic variation? Review the prompt and select all that apply
Answers
Independent assortment that promotes genetic variety is a chromosomal assortment and crossing over. Thus, options are -
(A) Crossing over
(D) Random segregation
(E) Independent assortment
What happens during meiosis?During the metaphase stage of meiosis, the chromosomes align in the center, and either the mother's or father's chromosome has an equal chance of being transferred to the daughter's cell. The bigger the number of chromosomes in a karyotype, the greater the likelihood of gamete diversity.
During meiosis, homologous chromosomes cross across, allowing DNA fragments to be exchanged between sister chromatids. This results in variation.
Thus,
(A) Crossing over occurs when homologous chromosomes join up with non-identical twins and swap DNA sections.
(D) The distribution of chromosomes among four gametes is known as random segregation.
(E) Independent assortment entails the separation of a pair's homologous chromosomes into distinct gametes.
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help please ill give you a crown!
Answers
Answer:
Proteins
Explanation:
Answer:
Proteins
Explanation:
Yes, ofc this one is a easy one (for me).
Which type of molecule would be most affected by a substitution mutation in a gene?
a. Sugar
b. Phosphate
c.Protein
d.Carbohydrate
Answers
The resting metabolic rate of an adult male Gorilla is 8,000 kcal/day. How many calories must he eat every day in order to survive?
Answers
did you end up getting the answer?
During glycolysis, a 6-carbon sugar diphosphate molecule is split into two 3-carbon sugar phosphate molecules. True or false?.
Answers
The given statement is true. During glycolysis, a 6-carbon sugar diphosphate that is fructose-1,6-bisphosphate is splitted into two 3 carbon sugar phosphate molecules that are dihydroxyacetone phosphate and glyceraldehyde-3-phosphate.
What is glycolysis?Glycolysis is a 10-step reaction wherein glucose is divided into two pyruvate molecules, each of which has three carbons.
Glycolysis is the initial step in the process of cellular respiration in organisms. However, many anaerobic organisms also contain this route since glycolysis does not require oxygen.
What are the various steps involved in glycolysis?1. The conversion of D-glucose into glucose-6-phosphate is the initial step in the glycolysis process. The enzyme catalyst in this case is hexokinase.
2.This second phase involves the conversion of fructose 6-phosphate from glucose 6-phosphate.
3. Using magnesium as a cofactor, fructose 6-phosphate is changed into fructose 1,6-bisphosphate.
4. Fructose 1, 6-bisphosphate is split into two identical sugars by the enzyme aldolase. Dihydroxyacetone phosphate (DHAP) and glyceraldehyde 3-phosphate are the names of these two sugars.
5.The molecules glyceraldehyde 3-phosphate and dihydroxyacetone phosphate (DHAP) are quickly interconverted by the enzyme triphosphate isomerase.
The first five steps listed above are regarded as the initial phase.
.Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) converts glyceraldehyde 3-phosphate into 1,3-bisphosphoglycerate by dehydrating it and adding an inorganic phosphate.
7. To create ATP and 3-phosphoglycerate, a phosphate group from 1,3-bisphosphoglycerate is transferred to ADP.
8. In this step, Phosphorous from 3-phosphoglycerate is transferred from the third carbon to the second carbon to generate 2-phosphoglycerate.
9. An enzyme removes a water molecule from 2-phosphoglycerate to create phosphoenolpyruvic acid (PEP).
10. Phosphoenol pyruvic acid is converted to pyruvate.
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: The given statement is True.
A 6-carbon sugar molecule is divided during glycolysis into two 3-carbon sugar molecules. Glucose, a 6-carbon sugar molecule, is also known as a hexose sugar. 3-phosphoglycerate refers to the 3-carbon sugar molecules created during glycolysis. Cells use the process of glycolysis to break down glucose and produce ATP as a source of energy (adenosine triphosphate). There is no need for oxygen because the process takes place in the cytosol of cells (anaerobic). All cells use the same pathway to produce energy, and it is the first stage in the breakdown of glucose to do so.
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IN YOUR OWN WORDS what is
Interphase
G0 (Gap 0)
G1 (Gap 1)
S (Synthesis)
G2 (Gap 2)
Mitosis
Answers
Answer:
interphase:(longest stage in the cell cycle)
g1:initial growth to normal size
s:synthesis of DNA (replication)
g2:growth to 2x the normal size
In the image below, what atom is shown in white? URGENT!!!!
Answers
Answer:
Pick Hydrogen, but read below.
Explanation:
The blacks are Carbon. They have 4 connections. The left Carbon has 3 whites connected to it. It is not totally an exclusive answer, but the whites could be anything in Column 17 (F, Cl, Br, I) or Hydrogen. Likely it is hydrogen.
what is hydrogen density?
Answers
Answer:
Multiply the density at 1 bata with the actual,higher pressure (in bata) is called hydrogen density
Oil and natural gas eventually reached layers of rock through which they could not pass called _________ _______.
Multiple choice question.
A)
deep rock
B)
permeable rock
C)
impermeable rock
D)
cement
Answers
PLZ HELP ASAP I’ll GIVE BRAINLEST Why is water considered to be a Polar Molecule?
Answers
All of the following are characteristics of all
living things except the ability to
A. grow and develop.
B. maintain a stable internal environment.
C. change over time.
D. ability to move.
Answers
Answer:
i hope this helps
Explanation:
the process of maintaining a stable internal environment, and breakdown of it ... how groups of organisms change over time (generations, longer periods of time) ... ability to maintain balance, grow, reproduce, and carry out other life functions.
Characteristics of all living things includes grow and develop, change over time and ability to move.
Living things shares similar characteristic and behavior.
These characteristics includes the following:
• All living things moves in one way or another
• Living things respirate (breath)
• Nutrition are what makes living things stay alive and grows
• Irritation occurs to all living things.
• All living things grows.
• All living things excretes waste product.
• Reproduction makes living things multiply in number
• The end of a living thing is death.
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Describe any significant differences you observe between the experimental and control aquariums.
Answers
The significant differences I observe between the experimental and control aquariums is that the experimental is seen as a group that we alter their variable in while the control group we cannot. The control aquarium is used for comparison.
What is the differences about?A factor that is known to bring about a significant difference that I have noticed is said to be the color of the water.
Note that In the control aquarium, the color of the water as at the time after 30 days was known to be the same as day one but in regards to the experimental aquarium, the water is one that has turned to a green tint on its 30th day and this is said to be quite different from its first day which was clear. This can be due to the fertilizer that was added to the experimental plot.
Therefore, The significant differences I observe between the experimental and control aquariums is that the experimental is seen as a group that we alter their variable in while the control group we cannot. The control aquarium is used for comparison.
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To test your hypothesis, the same fertilizer from the farm will be mixed into the water of one aquarium (experimental) and the other will be left alone (control). Each will be allowed to sit for several days in sunlight. Move the slider to see the results of the experiment. 2. Describe any significant differences you observe between the experimental and control aquariums.
A diagram of the carbon cycle is shown to the left.
Which of the following best explains the roles plants and
animals play in recycling carbon?
a.
Plants and animals both take in carbon through
respiration. They return it to the cycle through
decomposition.
b. Plants take in carbon through photosynthesis and
decomposition. Animals produce carbon through respiration.
C. Animals produce carbon through exhaling. Plants take in
carbon for photosynthesis.
d. Plants produce carbon through photosynthesis. Animals
take in carbon for breathing.
Answers
Answer:
b
Explanation:
animals poop which feeds the ground lol
Photosynthesis and respiration recycle carbon in plants. Animals get carbon from plants and exhale it. Therefore, option (B) is correct.
What is carbon cycle?The biogeochemical process known as the carbon cycle involves the transfer of carbon between the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Carbon is the most common element found in organic compounds, and it also plays a significant role in the chemical makeup of numerous minerals, including limestone.
Through the process of photosynthesis, plants take in carbon from their surroundings and then release it during the process of respiration. Plants are the source of carbon for animals, and animals exhale carbon during the process of respiration.
Therefore , option (B) best explains the roles plants and animals play in recycling carbon.
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