Answer:
The correct answer is B and C
sorry if incorrect
The statement 'eukaryotes use the 5′ G-cap and Poly-A-tail on their mRNAs to initiate translation' correctly describes one difference observed in eukaryotic and prokaryotic cells (Option c).
In eukaryotes, the 5′ G-cap on the 5′ end of a messenger RNA (mRNA) molecule is a Guanine nucleotide linked to mRNA trough 5′-5′ triphosphate linkage.The poly Adenine tail (poly-A-tail) is a long sequence composed of repeated Adenine nucleotides in the 3' end of the mRNA.Both 5′ cap and the poly-A-tail act to protect the mRNA transcript from exonuclease (enzymatic) degradation and initiate translation.In conclusion, the statement 'eukaryotes use the 5′ G-cap and Poly-A-tail on their mRNAs to initiate translation' correctly describes one difference observed in eukaryotic and prokaryotic cells (Option c).
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state and explain five uses of insects
Answer:
They aerate the soil-
They pollinate blossoms
Some are are scavengers, and feed on dead animals and fallen trees, thereby recycling nutrients back into the soil.
They produce silk (worms)
they clean up waste
Which of the following processes could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings?
a. Osmosis
b. Active transport
c. Diffusion
d. Facilitated diffusion
Answer:
B.
Explanation:
The movement of substances(ions and molecules) against their concentration gradient is called Active transport.Since these substances are moving against whew they are already in abundance,extra energy is needed for them to move against this gradient.Therefore,ATP.,oxygen is needed by the cells undergoing this transport process to transfer substances into the cells.
It is useful for entry of substances in plants e.g glucose,and for transport of materials in intestine in man
Na-K pumps, exocytosis,endocytosis are examples of this transport process.
It is inhibited by lack of oxygen,cyanide etc.
Active transport is the process that could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings.
Active transport is a type of movement that goes from where the electrochemical potential is lower to where the electrochemical potential is higher.
That is, it is the transport of a substance against its electrochemical gradient with energy input from ATP.
The driving force is linked, here, to the energy derived from cellular metabolism, this energy is provided by the hydrolysis of ATP or some other high-energy nucleotide.
The "pumps" that, at the level of the cell membrane transport Na +, for example, are the best known model.
Therefore, we can conclude that active transport is the process that could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings.
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According to research, what role do genes play in determining whether someone will develop an anxiety disorder
Answer: Here are the options.
A. Unknown
B. No role.
C. Fully determines.
D. Can contribute but does not fully determine.
The correct option is D.
Can contribute but does not fully determine.
Explanation:
According to research, Genes can contribute to anxiety disorder but cannot fully determine because certain chromosomal or genes are linked to panic or anxiety disorder. Scientist discovered that RBFOX1 gene may make someone more likely to develop generalized anxiety disorder which shows that anxiety disorder are linked to genes. Anxiety disorder can be inherited and it is linked to specific genes.
Anxiety disorder is a feeling and not a mental illness. They symptoms of anxiety disorder are phobias, excessive worrying, memory problems, tensed muscles, irritability, struggle to sleep e.t.c. Some environmental factors also can contributed to anxiety disorder.
Rabies vaccines in dogs: a. Are always given yearly b. Can treat the disease c. Are legally required in the United States d. Are voluntary in all states
Answer:
The core vaccines include the DHLPP (distemper, hepatitis, leptospirosis, parvo, and parainfluenza).
Explanation:
Your pup will also need a rabies vaccination, which is usually around $15—20. (Some clinics include the cost of the rabies vaccination.) hope this helps you :)
Answer:
Are given yearly.
Explanation:
Looked it up :)
Chlorine is
used as
medicine why
Answer:
Chlorine is used as a disinfectant in water treatment plants all over the world primarily because of its low cost and effectiveness. Basically, it gets rid of pathogens in the water and helps keep waterborne disease outbreaks at bay.
Question 15 (5 points)
Which antibodies would be found in the blood stream for someone whose blood
type was O positive (O+)?
No antibodies
A and B antibodies
B antibodies
A antibodies
Answer:
Both Anti A and Anti B bodies are present in the blood stream of person with blood group O
I hope this will help you:)
Answer:
A and B antibodies
Explanation:
The letter (A, B, or O) describes which antigens are present on blood cells. The opposite antibodies circulate in the blood stream. In the case of people with blood type O, they are universal donors but can only receive other type O blood because they have antibodies that recognize both A and B antigens as invaders.
52. Which one of the following pairs of vegetable and disease is correctly matched?
CA Cabbage=Carly blight
B. Cucumber Cub root
C. Potato =Black wart
CD. Tomato White rust
Answer:
D. Tomato White rust.
Explanation:
Hope it helps.
Which statement best describes monsoons?
They force cool, moist air from oceans to rise.
They are winds that blow in the opposite direction of a normal wind.
They bring heavy rain in the winter and in the summer.
They influence precipitation as wind moves near a mountain.
Answer:
The correct answer to the following question will be Option B and C.
Explanation:
Monsoon seems to be a change throughout the course including its predominant hot air flowing from either the south-western oceans of India towards India.The summer monsoon gives a luxurious atmosphere as well as heavy rains to something like the coastline of Asia (south-east), where many monsoon showers of rain undergo their rainy season throughout the winter.The other choices are not related to the given circumstances. So that Option B & C would be the appropriate choice.
Answer:
Pretty sure its B not sure tho. If its correct, mark as brainliest
Explanation:
Ground squirrels are found in many areas of the United States. They live in underground burrows and are often attacked by birds of prey, coyotes, and bobcats. Which of the following is a limiting factor for a ground squirrel population? a population of tree squirrels a population of hawks genetic variability breeding season
Answer:
a population of hawks
Explanation:
hawks are predators and feed on small ground/tree animals, such as squirrels, rabbits. rats,
The number of ground squirrels may be constrained by the presence of predators including bobcats, coyotes, and birds of prey.
What will be the impact of predators in the population?These predators pressure may lead to fewer individuals in the population, which may alter the distribution of those individuals within the environment. Food and water availability are examples of resources that may be limited.
For instance, the number of ground squirrels will be constrained if it increases too much and there is not enough food to feed it. The number of ground squirrels may also be impacted by environmental factors such as temperature, precipitation, and habitat accessibility.
Limiting factors are those that prevent a population from expanding. Predators like birds of prey, coyotes, and bobcats are limiting variables in the case of ground squirrels since they can reduce the squirrel population. Competition for resources like food, water, and shelter may be another limiting issue.
Therefore, the number of ground squirrels may be constrained by the presence of predators.
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Estimate how many arteries branch off the aorta given that arteries have a diameter of 0.4 cm and a flow speed of 45 cm/s.
Answer:
Approximately 25 arteries would branch off
Explanation:
Aorta has a diameter of 2 cm, so area is pi x 1^2 = 3.142
In case of the artery, pi x 0.2^2 = 0.126
So dividing total area of aorta by total area of one artery, we get 3.142/0.126 = 25.021
Hence, about 25 arteries will be needed to carry the amount of blood that flows in the aorta vessel.
The psychologist most closely associated with the school of functionalism is
Answer:
Explanation:
Edward B. Titchener. Functionalists, including psychologists William James and James Rowland Angell, and philosophers George H, they stressed the importance of empirical, rational thought over an experimental, trial-and-error philosophy.
hope it helps
I am generally found both inside and outside of the nucleus in a eukaryotic cell! DNA RNA BOTH?
RNA is found outside of the nucleus wile DNA is found inside the nucleus.
Eukaryotic cells have a true nucleus, which means the cell's DNA is surrounded by a membrane. Both the inner and outer membranes of the nuclear envelope are phospholipid bilayers. The nuclear envelope is punctuated with pores that control the passage of ions, molecules, and RNA between the nucleoplasm and cytoplasm.In eukaryotes, however, the DNA takes the form of compact chromosomes separated from the rest of the cell by a nuclear membrane.In eukaryotes, the cell's genetic material, or DNA, is contained within an organelle called the nucleus, where it is organized in long molecules called chromosomes.Learn more:
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Researchers cross a corn plant that is pure-breeding for the dominant traits colored aleurone (C1), full kernel (Sh), and waxy endosperm (Wx) to a pure-breeding plant wiht the reccessive trains colorless aleurone (c1), shrunken kernal (sh), and starchy (wx). The resulting F1 plants were crossed to pure-breeding colorless, shrunken, starchy plants. Counting the kernals from about 30 eats of corn yields the following data:
Kernel Phenotype Number
Colored, shrunken, starchy 116
Colored, full, starchy 601
Colored, full, waxy 2538
Colored, shrunken, waxy 4
Colorless, shrunken, starchy 2708
Colorless, full, starchy 2
Colorless, full, waxy 113
Colorless, shrunken, waxy 626
6708
A) Why are these data consistent with genetic linkage among the three genes?
B) Perform a chi-square test to determine if these data show significant deviation from the expected phenotype distribution.
C) What is the order of these genes in corn?
D) calculate the recombination fraction between the gene pairs.
E) what is the interference value for this data set?
D) #recombinant=116+601+4+2+113+625=1462
#nonrecombinant=2538+2708=5246
RF=R/(N+R)=1462/6708=0.2
E) I=1-Q
I-interference
Q-coefficient of coincidence
Q=O2Xo/E2xo(2xo-double crossovers)
O2xo=6
P=(distance from C1 to Sh/100)*(distance from Sh to Wx/100)
=(3.38/100)*(18.28/100)=0.006
E2xo=0.006*6708=40.248
Q=6/40.248=0.15
I=1-0.15=0.85
A biologist is studying how green sea turtles choose where to lay their eggs. She makes a hypothesis that because this species is related to other sea turtles through common ancestry, they probably all use the same process. This biologist formed her hypothesis using:________
a. A hunch
b. The unifying theory of evolution
c. Experimentation
d. The scientific method
e. Observations of green sea turtles' behavior
Answer:
Option b
Explanation:
Hypotheses are carried out as proposed explanation made on the basis of limited evidence which serves as a beginning point for further study.
The biologist in this case has a limited evidence with regards to this species which is just only about its ancestry, so her hypothesis was based on the unifying theory of evolution which is the framework within which biologists ask questions about the living world providing predictions with regards to directions about living things.
The correct answer, unequivocally, is (B).
- This is because she used her knowledge that, from an standpoint of evolution, these turtles were related to each other.
Which type of stress causes rocks to fold?
compression
shearing
strike-slip
tension
Answer:
A Compression
Explanation:
Since the rock cannot move, it cannot deform. This is called confining stress. Compression squeezes rocks together, causing rocks to fold or fracture (break) (figure 1). Compression is the most common stress at convergent plate boundaries.
Adenosine Triphosphate is producer by which of the Organelles? A.Ribosomes B.Mitochondria C. lysosomes C. Gimmiesomes
Answer: mitochondria
Explanation:
Mitochondria is the power house of the cell which produces energy (Admeosine triphosphatealso called ATP) for the cell
where near your home do you think the highest level of photosynthesis is happening?
Answer:
In the garden.
Explanation:
Because the garden contains photosynthetic plants.
Hope it helps.
How is cellular respiration related to photosynthesis? Sugars produced in photosynthesis are digested in cellular respiration. Energy produced in photosynthesis is used to make proteins through cellular respiration. Sugars produced in photosynthesis are broken down into glucose through cellular respiration. Energy produced in photosynthesis is put into a usable form through cellular respiration.
Answer:
Energy produced in photosynthesis is put into a usable form through celllular respiration.
Explanation:
The energy produced during photosynthesis cannot be used by the cell and is not in a usable form. With the help of cellular respiration, the energy is converted to ATP to be used by the cell.
In the case of two EPSPs occurring at a single synapse, which of the following will produce a subthreshold effect and not generate an action potential on the postsynaptic neuron’s axon hillock?
a. Both EPSPs occurring in rapid succession
b. The summed EPSPs depolarizing the axon hillock membrane to —70 mV
c. Both EPSPs occurring before the postsynaptic membrane potential returns to —55 mV
d. Both potentials occurring after the postsynaptic membrane potential returns to its resting value
Answer:
Both potentials occurring after the postsynaptic membrane potential returns to its resting value
Explanation:
This is simply because, a neuron returning to its resting state,will have the ligand gated Na+ channels closed.Therefore depolarization can not occur.More K+ gated channels will open, and more K+ leaks out of the axoplasm,returning the neuron to the resting state.
Hence if the summation of the two EPSP returns to the resting level after crossing the synapse, they can not propagate,and generate action potential, because they will produce a sub threshold effects,which will not generate action potential.
Which component of a virus is injected into an infected cell? ribosome nucleic acid protein capsid mitochondrion
Answer: The component of virus is injected into an infected cell is RNA or DNA, aur nuclei acid.
Explanation:
Nucleic acid is injected into an infected cell.
What component is injected into the infected cell?During attachment and penetration, the virus attaches itself to a host cell and injects its genetic material into it. During uncoating, replication, and assembly, the viral DNA or RNA incorporates itself into the host cell's genetic material and induces it to replicate the viral genome.
What does the nucleic acid do in a virus?Nucleic Acid - Just as in cells, the nucleic acid of each virus encodes the genetic information for the synthesis of all proteins. While the double-stranded DNA is responsible for this in prokaryotic and eukaryotic cells, only a few groups of viruses use DNA.
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Which statement summarizes the main purpose of photosynthesis?
OOO
It converts gases to solids in the form of sugar.
It converts carbon to oxygen.
It converts light energy to chemical energy.
It converts energy to mass.
Explanation:
it converts light enegry to chemical enegry. as it converts sun light enegry into food substances.
ASAP Where in an organism does osmosis occur? A. None of these answers is correct B. It only occurs in semi-permeable membranes, which are not found in organisms C. Across cell membranes D. In the lungs
Answer:
The answer is option C.
Hope this helps you
has four pairs of chromosomes what proportion of gametes would be expected to contain some chromosomes from both parental and maternal origin? assume that there is no crossing over
Answer:
To complete the question: a diploid organism has four pairs of chromosomes what proportion of gametes would be expected to contain some chromosomes from both parental and maternal origin? assume that there is no crossing over
Answer: 7/8
Explanation:
A diploid organism with four pairs of chromosomes...
Assume that the organism receives chromosomes A, B, C and D from the female parent and A', B', C' and D' from the male parent.
Proportion of gametes from patterns origin is the same as that of matters origin, this we have:
(1/2)^4 = 1/16 where 4 reps the number of possibilities, 1/2 rep the chance
Thus, the proportion of gametes expected to contain some chromosomes from both parental and maternal origin would be
(1 - (1/16 + 1/16)) = 14/16 = 7/8
All the animals trees and plants are made up of cells that share many similar nucleus
Answer:
True.
Explanation:
Animal cells and plant cells are similar, though plant cells have chloroplasts and cell walls while animal cells don't. However, both have mitochondria, a nucleus, Golgi Apparatus, etc.
Discuss with erica what appropriate internet usage on the job look like
Explanation:
Download or upload obscene, offensive or illegal material.
Send confidential information to unauthorized recipients.
Invade another person’s privacy and sensitive information.
Download or upload movies, music and other copyrighted material and software.
Visit potentially dangerous websites that can compromise the safety of our network and computers.
Perform unauthorized or illegal actions, like hacking, fraud,
A science student makes the following statement: I think that plants grow faster in acidic soil than they do in normal soil. Which of these is the student doing?
The given question is incomplete. The complete question is as follows:
A science student makes the following statement:
I think plants grow faster in acidic soil than they do in normal soil.
Which part of the scientific process is this?
A. Analyzing data
B. Testing a hypothesis
C. Forming a hypothesis
D. Stating a theory
Answer:
C. Forming a hypothesis
Explanation:
The given statement is a "hypothesis" formed by a science student.
A hypothesis form a relationship between independent variable and dependent variable. Independent variable is the variable that a researcher or scientist controls while dependent variable is the variable that a scientist observes and measures.
So, in the given statement, independent variable is the concentration of acidic and normal soil and dependent variable is the growth of the plant, that the student will observe.
Hence, Student is making a hypothesis and the correct option is "C".
What can we say about
protons?
A. They are in the nucleus and never
leave.
B. They move around outside the nucleus.
C. They move in and out of the nucleus.
Put the following events that occur at the neuromuscular junction in their correct order. A-Sodium enters the muscle fiber, creating an end-plate potential. B-Neurotransmitter is released into the synaptic cleft. C-An action potential reaches the presynaptic membrane. D-Neurotransmitter binds to a receptor on the postsynaptic membrane. E-Sodium channels on the motor end plate open.
Answer:
C-An action potential reaches the presynaptic membrane.
E-Sodium channels on the motor end plate open.
A-Sodium enters the muscle fiber, creating an end-plate potential.
B-Neurotransmitter is released into the synaptic cleft.
D-Neurotransmitter binds to a receptor on the postsynaptic membrane.
Explanation:
In the neuromuscular junction, there is a presynaptic membrane, a postsynaptic membrane, and between these two, there is a gap called the synaptic cleft.
First, an action potential reaches the presynaptic membrane, causing the opening of sodium channels and the entering of Sodium ions to the muscle fiber creating an endplate potential. As a consequence of this, the neurotransmitters contained in vesicles travel down up to the presynaptic membrane, where they release their content into the synaptic cleft. Then, the neurotransmitters bind to the receptors in the ion channels of the postsynaptic terminal. This causes the opening of the ion channels and a rush of ion Sodium to the inside of the postsynaptic membrane, creating an action potential that will travel from cell to cell.
Arranging the following events based on their mode of occurrence is at the neuromuscular junction ;
An action potential reaches the presynaptic membrane ( C )Sodium channels on the motor end plate open. ( E ) Sodium enters the muscle fiber, creating an end-plate potential.( A ) Neurotransmitter is released into the synaptic cleft ( B ) Neurotransmitter binds to a receptor on the postsynaptic membrane ( D )The neuromuscular junction is composed of presynaptic membrane, postsynaptic membrane and a synaptic cleft. The events that occurs at the neuromuscular joints starts with an action potential reaching the presynaptic membrane which leads to the entrance of sodium ion into muscle fibers due to the opening of the sodium channels. The neurotransmitter travels through the presynaptic membrane and empties its content into the synaptic cleft.
Hence we can conclude that Arranging the following events based on their mode of occurrence is at the neuromuscular junction is ; C , E , A , B and D
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ASAP Neurons are an example of which type(s) of cell signaling? A. Short range messaging B. Short range and Direct contact C. Long range signaling D. Direct contact
C. Long-range signaling because their axons can send signals that can reach up to 3 feet
1 2.1.5 Quiz: Specialized Cells and Tissues
Question 5 of 5
2 Points
Which statement best explains how the needs of a unicellular organism are
met?
A. Only its specialized cells work together.
B. All of its cells must work together.
C. Most of its tissues work together.
D. Its cell parts must do everything.
SUBMIT
Answer:
B. All of its cells must work together
Its cell parts must do everything explains the needs of a unicellular organism are met. So, the correct option is D.
What are Unicellular Organisms?A unicellular organism is also called as a single-celled organism, which is defined as an organism with a single cell, in contrast to a multicellular organism, which consists of many cells. Organisms fall into two categories: prokaryotic organisms and eukaryotic organisms.
Amoeba and Paramecium both are protozoans which belongs to Kingdom Protists that are unicellular organisms. Unicellular organisms are organisms that have only one cell that performs all vital functions including metabolism, excretion, and reproduction. Its cell parts must do everything explains the needs of a unicellular organism are met
Therefore, the correct option is D.
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