Answer: c. The protein will be made but will not function, because prokaryotes cannot remove introns.
Explanation:
Eukaryotic cells are cells that have membrane-surrounded organelles, such as a nucleus which is an organelle that stores the DNA, the genetic material. On the other hand, prokaryotic cells do not have a nucleus, and the genetic material is a single molecule, usually circular and closed and double-stranded, which is located in a sector of the cell known as the nucleoid (meaning "similar to the nucleus"), which does not imply the presence of a nuclear membrane.
A gene is a unit of information at a DNA locus that codes for a protein. To synthesize that protein, DNA must be transcribed into messenger RNA (mRNA), and that mRNA is read by ribosomes in a process called translation or protein synthesis. The difference between protein synthesis in prokaryotic and eukaryotic cells is that in prokaryotes, transcription and translation take place directly in the cytoplasm since there is no nucleus. In eukaryotes, transcription takes place inside the nucleus, to generate mRNA. This mRNA molecule is then directed to the cytoplasm where translation happens.
a. In prokaryotic cells, ribosomes are produced in the cytoplasm, whereas in eukaryotic cells they are generated in the nucleolus within the cell nucleus. So they both have ribosomes and they are used to make proteins, then this option is true.
b. RNA polymerase initiates transcription of all different types of RNA (mRNa, ribosomal RNA and transfer RNA). However, there are three RNA polymerase variations, each one translate a different type of gene. But, prokaryotic RNA polymerase can translate eukaryotic genes. Then this option is not true.
c. Prokaryotic cells don't have introns because those cells do not perform a post-transcriptional RNA modifications, only done by eukaryotic cells. One of the modifications is the excision of introns in RNA. An intron is a region of DNA that is part of the primary RNA transcript, but unlike exons, they are removed from the mature transcript prior to translation. So, this remotion does not happen in prokaryotes because they just don't have introns. Also, in prokaryotic cells. the translation and transcription machinery is coupled. So, the transcription and translation occurs simultaneously, there will be no remotion of introns then the protein will be synthesized differently, since the reading frame is changed. Remember that each codon (set of three nucleotides) codes for an amino acid. So if the gene sequence is different because certain sections of the gene have not been removed, the protein will be different, and probably it will not function. This option explains how the expression of an eukaryotic gene encoding a protein will differ if the gene is expressed in prokaryotic cells.
d. The genetic code is the set of rules that defines how a sequence of nucleotides in RNA is translated into a sequence of amino acids in a protein. This code is common to all living organisms, although there are small variations, and it has a unique origin and is universal. So, the code defines the relationship between each sequence of three nucleotides, called a codon, and each amino acid. The sequence of genetic material is composed of four distinct nitrogenous bases, which are represented by letters in the genetic code:
Adenine (A)Thymine (T)Guanine (G) Cytosine (C) Uracil (U), only in RNA (instead of T)So, the genetic code is the same for eukaryotes and prokaryotes. So this option is not true.
The statement that best explains the above condition is that the protein will be made but will not function because prokaryotes cannot remove introns. So, the correct option is C.
What do you mean by a Gene?A gene is the stretch of DNA that has genetic information. It is the nucleotide sequence that can produce functional proteins or enzymes.
Prokaryotic cells don't have introns because those cells do not perform post-transcriptional RNA modifications, This activity is only performed by eukaryotic cells. So, this activity does not happen in prokaryotes because they just don't have introns.
Therefore, the statement that best explains the above condition is that the protein will be made but will not function because prokaryotes cannot remove introns.
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Peat is soil that is composed of
a partially decayed remains of animals
b. partially decayed remains of plants
c. fresh plants
d. high concentration of nutrients
Answer:
Peat is the surface organic layer of a soil that consists of partially decomposed organic matter, derived mostly from plant material, which has accumulated under conditions of waterlogging, oxygen deficiency, high acidity and nutrient deficiency
Explanation:
so c
Question 3
3.1 Look at the illustration below and answer the
questions.
A
B
C
tion you would give them,
-wing aspects:
aese farmers could gain from
ination
(2)
- signs of oestrus
(2)
Facilities needed for
ation
(3)
technique.
(3)
Fon in the insemination
(2)
stions about the
Hova (embryos).
of the term
(2)
asplantation of
(3)
Ewer the questions
3.1.1 Identify the parts labelled A, B and C. (3)
3.1.2 Name the most important function of the
membrane marked C.
(1)
3.1.3 Describe four signs that can be observed
when a cow is approaching calving.
(4)
Answer:
besh cornerhiiiiiiiiiiiiiiiii
In regards to the question proposed to our class (included above) during our genetics unit on whether
children of married identical twins will end up being identical twins themselves, my claim is:
Answer:
will this work or help?
Explanation:
Multiple births can include fraternal or identical multiples ... This can happen if your body releases multiple eggs and ... Are a twin yourself or have twins in your family.
What is a “disturbance” in the field of ecology?
a. A living factor that affects organisms.
b. An event that makes a species extinct.
c. An event that changes a community.
HELP please
Youngest to oldest
Answer: The youngest would start from the bottom the oldest would be the very top
Explanation: so let me show you why. at the mid-atlantic ridge there is more and more crust being made in the midle. As it grows the old crust that got push up gets pushed up wards. and is stacked with the rest of the other crust. the image i put with this should help, a little bit more. I this helps.
Researchers think the cheetah population in Africa experienced extremely low numbers around 10,000 years ago, and then also again around 100 years ago. During both times, the low numbers rebounded back. Predict the consequence of this on the cheetahs of today.
a. Cheetahs are a very resilient population and unlikely to become extinct.
b. Cheetahs today are the strongest and fastest cheetahs ever.
c. Cheetahs today have very little genetic variation.
d. Cheetahs today are slower than those before the population fell.
Answer:
Cheetahs are a very resilient population and unlikely to become extinct.
Explanation:
LH Gunderson (2000) Defined ecological resilience as "the amount of disturbance that an ecosystem could withstand without changing self-organized processes and structures."
When a population is resilient, it tends to bounce back after major perturbations.
For instance, the Cheetah population was at the brink of extinction around 10,000 years ago, and then also again around 100 years ago yet the population was able to recover at both periods and never went extinct.
This implies that Cheetahs are a very resilient population and unlikely to become extinct.
Answer:
c. Cheetahs today have very little genetic variation
Explanation:
Genetic drift is an evolutive force. It is the random change that occurs in the allelic frequency of a population through generations. Its effects are harder in a small-sized population, meaning that the magnitude of this change is inversely related to the size of the original population.
Genetic drift results in some alleles loss -including the beneficial ones-, while some other alleles get fixated. Low-frequency alleles are the most likely to be lost. The changes produced by genetic drift accumulate in time and results in a loss of genetic variability within a population.
Genetic drift affects a population and reduces its size dramatically due to a disaster or pressure -bottleneck effect- or because of a population split -founder effect-. The bottleneck effect most likely affects smaller populations.
In the exposed example, the low numbers of cheetah around 10,000 years ago, and then also again around 100 years ago, might have been due to some natural disaster or extensive hunting that acted as a pressure that significantly reduced the number of animals. Probably, the population experienced one or many small-sized generations. Even though the low numbers rebounded back, the survivors did not have the whole genetic pool of the original population, meaning the genetic diversity might not have recovered. When the small groups increased in size, they had a genetically different composition from the original one. There is a reduced genetic variability, with a possibility of developing a peculiar allelic component. If the survivors in the population carried or developed a mutation, probably this mutation passed from generation to generation. It might involve even more individuals each time and increase the probability of developing a genetic disease.
Following are assertion and reasoning questions. Read the two statements labelled as A and R. Pick any of the
four options given below :
a. A and R are true and R is the correct explanation of A.
b. A and R are true but R is not the correct explanation of A.
c. A is true but R is false.
d. Both A and R are false.
1. A: Cell wall is present in plants.
R: Cell wall acts like a layer of protection to the plant cells as plants don't move.
2. A: Cell membrane is semipermeable.
R: It allows only certain molecules to pass through it.
3. A: Bacteria are prokaryotes.
R: A prokaryote is a typically unicellular organism that has a nuclear membrane-enclosed nucleus.
4. A:Nucleus is called the control center of the cell.
R: It is located in the center of the cell.
5. A: Plastids are resp sible for
R: They contain chlorophyll that traps sunlight.
Answer:
1,. d
2,.a
3,.b
4,.a
5,.b
The epicenter of an earthquake is located 6,500 kilometers away from a seismic station. If the
first S-wave arrived at this seismic station at 1:30 p.m., at what time did the first P-wave arrive?
A)1:20 p.m.
B)1:22 p.m.
C)1:38 p.m.
D)1:40 p.m.
Explanation:
the epicenter of an earthquake is located 6500 kilometers aways from a seismic station .
Que cosas podemos hacer con el oro
Explain the difference between inter-cooperation and intra-cooperation between species.
Answer:
In evolution, co-operation is the process where groups of organisms work or act together for common or mutual benefits. It is commonly defined as any adaptation that has evolved, at least in part, to increase the reproductive success of the actor's social partners. For example, territorial choruses by male lions discourage intruders and are likely to benefit all contributors.
This process contrasts with intragroup competition where individuals work against each other for selfish reasons. Cooperation exists not only in humans but in other animals as well. The diversity of taxa that exhibits cooperation is quite large, ranging from zebra herds to pied babblers to African elephants. Many animal and plant species cooperate with both members of their own species and with members of other species.
Explanation:
I think?!
What is the importance of negative chemotaxis
Answer:
Chemotaxis is the directed migration of cells in response to concentration gradients of extracellular signals. ... In multicellular organisms, it ensures that the right cells get to the right place at the right time during development, and plays an essential role in processes such as wound healing and inflammation [2, 3].
Why are different units of measurement used for distances in space?
Light year and parasecond are some of the units which are used to measure the distance in space.
What are the distance unit?
Since space is so vast, many astronomers prefer not to measure distances in miles or kilometers. Instead, we employ a unit of measurement known as a parsec. a method used by astronomers to describe spatial distances.
A parsec is equal to 30,86 trillion, kilometers. The nearest star, Alpha Centauri, comes to mind. It is 41,560,000,000,000 (or 41.56 trillion) kilometers away, or 1.347 parsecs.
Although a 1,400-year-old statement in the Koran relating it to the revolutions of the moon around the Earth is true.
Therefore, Light year and parasecond are some of the units which are used to measure the distance in space.
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#SPJ1
Why does warm air rise? Why does cool air sink?
Help! How do i do this?
Answer:
when we crossed Pp with pp out result will have a phenotype ratio of 2Pp:2Pp or Pp:Pp and genotype will be 50%Pp and 50%Pp.
Please help this is a 7th grade science problem
the Answer is C. because recessive means two of the same alleles and non dominant
what muscle moves the first toe
Answer:
Abductor hallucis
Explanation:
Abductor hallucis: A muscle on the inner side of the foot that runs from the big toe to the heel, it pulls the big toe, or hallux, away from the body. Tibialis anterior: This muscle runs from the tibia to the first toe, and helps make walking possible by flexing the foot upward and turning it inward.
healthline dot com
the amount if light an temperature are examples of
Answer are examples of factors to which living things respond
Explanation:
:)
When it was time to go outdoors, 3-year-old Casandra said she didn’t want to play and headed for her locker. At the teacher’s gentle insistence, Casandra reluctantly joined the other children on the playground. Tears rolled down her cheeks when the teacher boosted Casandra onto a swing seat and began to push her. The teacher stopped the swing and helped Casandra off. She held her closely for a few minutes and then asked why she was crying. Casandra initially denied that anything was wrong. However, when the teacher persisted, said she "had fallen the night before and hurt her bottom."
The teacher took Casandra inside and asked to see where she had been hurt. When Casandra pulled down her shorts, the teacher noted what appeared to be a large burn with blisters approximately 2 inches in length by 1 inch in width on her left buttock. Several small bruises were also evident along one side of the burn. Again, the teacher quietly asked Casandra how she had been hurt, and once again she replied that she "had fallen."
What actions should Casandra’s teacher take?
Answer:
casandra was scared around others
Explanation:
in the passage i notesed that she went to her locker and started crying
Answer: 1. Casandra's teacher should take her to the nurse and just tell the nurse that she got hurt in the playground 2. The teacher should gather more evidence until she knows that something is going on because she can't prove that something is really happening 3. She shouldn't tell the parent yet because they would probably accuse the teacher of doing it 4. If it was the first time , I would feel bad for the girl and just tell her to be careful but if it kept happening, I would tell the principal and her parents and I would feel angry
What kind of information do ice cores contain?A.Evidence of volcanic eruptions.
B. All answers.
C. Concentration of CO2.
D.Concentration of methane.
How is the position of each of the following parts of a plant related to its function?
A.Stigma
B. Petal
C. anther
Which of the following statements about the equilibrium theory of island biogeography is FALSE?
a) All of the above are true; none is false.
b) At equilibrium, the species composition of an island will not change.
c) If the extinction rate increases, the number of species on an island should decrease.
d) If the immigration rate increases, the number of species on an island should increase.
e) The theory applies to island-like habitats as well as islands.
Answer:
b) At equilibrium, the species composition of an island will not change
Explanation:
According to MacArthur-Wilson (1967) equilibrium theory of island biogeography
• The number of species on an island represents a dynamic equilibrium between the opposite forces of immigration and extinction rates.
• At equilibrium, the species richness keeps constant. But the species composition changes.
• Each island can have a certain number of species, but these species are not always the same, meaning that species might renew. Interspecific competition has a significant role.
The assumptions of the equilibrium theory:
The immigration rate depends on the distance of the island to the mainlandThe extinction rate depends on the island size.All the species have the same chances of getting to the island.Predictions:
At equilibrium, the number of species is constant in time.Dynamic equilibrium means a continuous species renewal. If the island gets bigger, species richness increases. If the island is closer to the mainland, species richness increases.The model has been criticized for its predictions and assumptions. What actually happens in nature might differ from the assumptions.
Target effect: The immigration rate not only depends on the distance of the island to the continent but also on the size of the island. Bigger islands are easier to see than smaller islands. Rescue effect: The Extinction rate not only depends on the size of the island but also the distance. Closer islands have higher chances of being colonized than the farther ones. Not all species have the same chances of getting to the islands because species vary in their dispersion capabilities. The theory does not consider in situ evolution.However, despite the critics, the theory has significant contributions:
It is a simple model that helps to define and interpret predictive models. It considers competition and competitive exclusion → As the number of species increases, the extinction rate increases too. It applies to different habitats such as patches, corridors, natural reserves, among other island-like areas. Useful for interaction and trophic webs conservationThe theory of island biogeography does state that a larger island will tend to have a greater number of species when compared to a smaller island.
An island is regarded as an ecosystem that is uniquely different from the surrounding area.
It is also stated that when immigration rates and extinction rates are at the same point or the same, the island is in an equilibrium state.
This therefore implies that the number of species on the island stays roughly the same. but, even though the number of species does not change, the composition of those species on the island may be altered.
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Which situations would be most likely to engage the anterior cingulate cortex?
Answer:
Which of the following situations would be most likely to engage the anterior cingulate cortex?
A waiter walks over to your table at a restaurant and holds an open menu in front of you.
You walk into the elevator of your apartment building and press the button for your floor.
You enter your classroom and find someone sitting in your usual seat.
A good friend asks you to remind him of your telephone number.
Explanation:
In order to meet the demand of the surrounding environment by adjusting the motor outputs from the brain to the environments ,a part of the emotion control part of the brain( limbic system) called the anterior cingulate cortex is responsible for this.
Anatomically, the limbic system is made up of the primarily the amygdala, hippocampus, thalamus, hypothalamus, basal ganglia and cingulate gyrus.
Based on the this its(anterior cingulate cortex) functions are formation of emotion in the limbic system, and possessing of memory and learning.
it is also a major parts of of pain networks for pain modulation and perception.
Therefore whenever there is change in the environment from the prestored condition in the brain,(e.g the usual seat in the class room occupied above) the anterior cingulate cortex adjust the motor input from the brain to adapt to the new environment to take an action,whih in this case leads to the reclaiming of the seat or any other necessary proactive action.
Describe oligospermia
Explanation:
magsagot ka ng iyo tang ina mo bobo
Science question ill give you brainly!
Answer:
last one
Explanation:
cell is the smallest
Answer:
d plz help me at https://brainly.com/question/23664340
Explanation:
Which of the following is true of Mendelian inheritance
A. If a dominant allele is present, the recessive allele won’t be seen
B. If a recessive allele is a present, the dominant allele won’t be seen
C. Both recessive and dominant alleles show if present
The correct option is A. If a dominant allele is present, the recessive allele won’t be seen.
The dominant allele is the one which appear, and the recessive one isn't shown.
For example - If a person has 2 alleles of eye colour as B ( black ) and b ( brown ), in which black is dominant and the brown one is recessive, then the person will have black eye colour because only dominant allele shows its characteristics.
_____________________________
[tex]\mathrm{ \#TeeNForeveR}[/tex]
Answer:
A
Explanation:
Eukaryotes evolved after prokaryotes and eukaryotes have a nucleus
that surrounds the DNA.
O True
O False
Answer:
True
Explanation:
Which of the following are considered gases?
Check all that apply.
A. Helium
B. Air
C. Wood
D. Oxygen
E. Gravity
Answer:
Oxygen, Air And Helium.
What is an atomic number and atomic mass???
Answer:
The number of protons determines an element's atomic number and is used to distinguish one element from another
Explanation:
Together, the number of protons and the number of neutrons determine an element's mass number.
Answer the following using directional terms specific to the dentition. a Your canine is _______________________________________ relative to your first molar. b Your third molar is __________________________________ relative to your second molar. c The cheek side of the tooth row is the ______________________________ side. d Your lateral incisors are _________________ relative to your central incisors. e The tongue side of the tooth row is the ____________________________________ side. f Where your opposite tooth rows meet (to chew) is the _______________________________ surface.
Answer:
The correct answer is - a. mesial, b. distal c. buccal d. distal e. lingual f. occlusal.
Explanation:
Mesial is the surface near the midline of the face, In dentistry, the canine is mesial to the first molar which means it is the middle of the face. The third molar is distal to the second molar.
Distal is the backside of a particular tooth in dentistry. The cheek side of the tooth known as the facial surface for the front teeth in dentistry. Lateral incisors are distal to the central incisors. Lingual is the part of the tooth near the tongue. The chewing surface of posterior teeth is also known as the occlusal.
Drag each label to the correct location on the image. Not all labels will be used.
Match the labels with the symbols on the weather map.
cold front
warm front
low pressure
strong winds,
cloudless
strong winds,
very cloudy
high pressure
occluded front
I need help now please!
About the question:
You will find the map in the attached files
Answer:
Cold front → blue line/trianglesWarm front → red line/semicircles Occluded front → lines with triangles and semicircles Low pressure → LHigh pressure → H Strong winds, cloudless → White key Strong winds, very cloudy → Black filled keyExplanation:
ISOBARS:
These are lines that join points of similar pressure and indicate atmospheric pressure for different regions. If lines are very close to each other, means that there will be bad weather. This is because, at a short distance, pressure values change, meaning atmospheric instability.
PRESSURE ZONES:
Isobars indicate the speed and direction of winds. Winds move from high atmospheric pressure areas to lower atmospheric pressure areas. When isobars are placed as small circles, there is a letter indicating the pressure center. It can be either high pressure symbolized with an H, or low pressure symbolized with an L.
High-pressure zones, H, represent anticyclones and are associated with good weather.Low-pressure zones, L, represent cyclones and are associated with bad weather. The closer the lines are to each other, the stronger will be the winds.FRONT TYPES:
There are different types of fronts, which can be represented with different symbols.
Cold front: In weather maps, these are represented with blue lines with triangles indicating the direction of the wind movements. Warm front: In weather maps, these are represented with red lines with semicircles indicating the direction of the wind movements. Occluded front: It can be warm or cold. These are represented with purple lines with triangles and semicircles indicating the direction of the wind movements.CLOUD COVER / WIND SPEED:
Indicated as a key figure on the map.
Circle: Represents the percentage of cloud cover. The clouder it is, the more black will be the circle. Stick: Represents the wind speed. The stick can have lines indicating the degree of speed → stick with no transversal line indicates 1-4 mph, one line means 5-8 mph, two lines 9-14 mph. And so on.