Answer:
Explanation:
A. The role of promoter in eukariotic gene expression is It is to bind transcription factors that regulate transcription initiation. This molecule is so important because control the binding of RNA polymerase to DNA. The promoter region may be short or very long; the longer the promoter is, the more protein binding space is available. A negative regulatory molecule has the possibilty to inhibit transcription at the promoter because these molecule block the binding of RNA polymerase to the promoter region, thus not allowing the initiation of transcription, in some particular cases the negative regulator binds to the lac repressor and will bind to the promoter in the same site where RNA polymerase would bind to.
B. Two process that occurs during RNA processing are RNA splicing and 5′ capping, 3′. RNA splicing is a process known for removing the introns from the pre-RNA and stuck back together the restant parts, exons. This process has as a goal form a mature mRNA that does not contain the intron sequences. RNA splicing has an effect on the variation of mRNA molecules because through a process called alternative splicing more than one mRNA can be made from the same gene.
C. Even though they are not quite the same thing miRNA and negative regulatory molecules have the same role, which inhibits the translation and silence genes. They regulate gene expression by binding to the 3'-UTR of their target mRNAs and destabilizing the mRNA and translational silencing, repressing protein production. Even so, under specific circumstances, miRNA can activate translation or regulate transcription.
What is often a problem when calibrating a molecular clock?
A. There are frequently not enough negative mutations to accurately calibrate the clocks.
B. There are many different clocks, each of which "ticks" at a different rate.
C. The clocks use mutations that are difficult to identify and track.
D. The frequency of crossing over is used to calibrate the clocks.
Answer:
cevabın C olduğunu düşünüyorum
I need help with 1,2,4,5,6, and 7. I already did 3 :)
Answer:
Answers, in order:
40, Temperature steeply decreases, 2, Effect decreases steeply, 5 and 9, 10
HELPPP!!! I'm confused!!
option c
Glycolysis , Krebs cycle , electron transport chain
__________ are surroundings with high levels of exposure to industrial chemicals.
A)
Second-growth forests
B)
Point sources
C)
Old growth forests
D)
Rangelands
E)
Toxic environments
Answer:
E)
Toxic environments
Explanation:
HOPE IT HELPS YOU
Which layer of Earth's atmosphere is most strongly affected by conditions on the sun's surface?(1 point)
mesosphere
troposphere
stratosphere
thermosphere
Answer: thermosphere
Explanation:
The layer of Earth's atmosphere most strongly affected by conditions on the sun's surface is the thermosphere.
What is thermosphere?The thermosphere is the highest layer of the Earth's atmosphere, extending from about 90 km to 600 km above the Earth's surface. It is the layer where the majority of ultraviolet and x-ray radiation from the sun is absorbed and where auroras occur. The ionosphere, a part of the thermosphere, is where the sun's solar wind and magnetic fields have the strongest impact on the Earth's atmosphere, creating the Northern and Southern Lights.
In comparison, the mesosphere, stratosphere, and troposphere are lower layers of the Earth's atmosphere that are not as directly affected by conditions on the sun's surface.
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2. What might happen to the population of
rabbits if there were no foxes? sc.7.L.17.3
A
the population would increase
8 the population would decrease
© the population would stay the same
there would be no effect
D
In the body, red blood cells have a much shorter lifetime than cheek cells.
Use ideas about the different structure of these cells to suggest why.
5. Using the picture below, fill in the correct word that corresponds with each letter
A.
B
В.
C
D
6CO2 + 6H20,+ Energy,
C6H12O6 + 602
+
F
C
D
E
F
G
GO
H
This is the formula for:
H Н.
Answer:
ano yan depota
Explanation:
pota pota
1.
Young hermit crabs pick up sea anemones which live on their shells. The stingy tentacles of the anemone keep fish from eating the hermit crab, and the sea anemone is able to eat leftover food from the hermit
crab. Which best describes the relationship between the sea anemone and the hermit crab?
A commensalism
B. O mutualism
c. parasitism
DO predation
Answer:
mutualism.
Explanation:
Mutualism can be defined as an symbiotic relationship or interaction between two or more living organisms of different species that typically involves each organism benefiting positively. Therefore, mutualism influences the survival and reproduction of living organisms in their habitats.
In this scenario, young hermit crabs pick up sea anemones which live on their shells. The stingy tentacles of the anemone keep fish from eating the hermit crab, and the sea anemone is able to eat leftover food from the hermit crab. Therefore, the relationship between the sea anemone and the hermit crab is best described as mutualism because both of them are benefiting from the interaction.
Simply stated, the sea anemone provides protection (security) from predators for the hermit crab while the hermit crab provides food for the sea anemone.
Which protists contain both chloroplasts and eyespots?
A .amoeba and paramecia
B. volvox and paramecia
C. euglena and amoeba
D. euglena and volvox
.
D. Euglena and volvox contain both chloroplasts and eyespots.
What are protists?
Protists are single-celled microorganisms that belong to the kingdom Protista. They are unicellular organisms that are not classified as bacteria, fungi, or animals, and are the simplest of the eukaryotes (organisms with a true nucleus and other membrane-bound organelles). Protists are found in a wide variety of habitats, from freshwater to marine environments, and are important for their role in the food chain, as well as for their impact on human health.
Protists come in a wide range of shapes and sizes, from amoeba-like organisms that can change shape, to algae with chloroplasts, to parasites that can cause diseases in humans and other animals. Some protists can move on their own, while others are immobile. Some can reproduce asexually, while others reproduce sexually. Despite their diverse forms and functions, all protists are considered to be part of the same kingdom because of their shared characteristics and evolutionary relationships.
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a description of the forest ecosystem
What is the main function of the organs thyroid gland, adrenal glands, and pancreas?
Answer:
D
Explanation:
I hope it helps you, good luck!
where is sucrose transported to in plants?
(name like either roots, leaves, where?)
The pedigree below is for a family that has the allele for thalassemia, a recessive genetic disorder. Which individual has thalassemia?
individual 2
individual 5
individual 7
individual 10
Answer:
Individual 10 is the answer
Explanation:
I just took the quiz on edge
Answer:
The answer is Individual 10, hope that helps.
Explanation
Because it is right on Edge
What is the connection between land use and biodiversity ?
I need help so I'm giving 100 points away if you help with this question
The use of grass filter _______ can help block nitrates and pesticides from washing into the water system in runoff from cultivated fields
there are no answer choices so please answer slowly and think about it
Answer:
buffer zones
Explanation: rather than planting the crop right up to the water you leave some as grass or actually plant grass in that buffer zone to filter out and prevent chemicals from reaching the water system
Need help
The photograph shows a consequence of air pollution.
Which of these was most likely the cause of the effect shown in the
photograph?
A. Eutrophication
B. Acid deposition
C. Ozone depletion
D. Bioremediation
The most likely cause of the effect shown in the given photograph is Acid deposition.
What are the causes of Air pollution?
The causes of air pollution include excessive burning of fossil fuels, industrial emissions, carbon emissions from automobiles, construction and industrial wastes, etc.
Acid deposition may be also known as Acid rain. It includes the form of precipitation with several acidic components like nitric acid and sulfuric acid.
These precipitations finally falls on the earth from the atmosphere in the form of rain, snow, fog, etc., and are deposited on tall trees, buildings, and objects, and lose their natural beauty.
Therefore, the most likely cause of the effect shown in the given photograph is Acid deposition.
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Answer:
Acid Depletion
Explanation:
Check the items you included.
Bacteria perform nitrogen fixation
More bacteria perform nitrification,
Nitrogen, in usable form, is taken up by plants,
and assimilated into their proteins (becoming
part of the plant).
An animal eats the plant and the nitrogen
becomes part of the animal's proteins.
An animal dies and decomposes, or excretes
waste, returning the nitrogen to the soil.
Answer:
SI
Explanation:
An example of a nucleotide is?
A. cytosine, ribose, and deoxyribose
B. guanine, deoxyribose, and phosphate
C. uracil, deoxyribose, and phosphate
D. thymine, ribose, and phosphate
Answer:
B
Explanation:
A nucleotide always consists of 3 things:
1. A sugar group (either ribose or deoxyribose, ribose if the nucleotide is from RNA, deoxyribose if it is from DNA.
2. A phosphate group
3. A nitrogenous base (A/T/U/C/G) This base depends on whether you have RNA or DNA, U is only for RNA. DNA has either A/T or C/G but never U.
If you were an Amazon ant, how would you eat?
a. You would cultivate a special fungus
b. You would feed off the nectar produced by caterpillars
c. You would consume the pheromones produced by
other ants
d. You would be fed by "slave" ants from other species
Answer:
A
Explanation:
you have make your own cultivation so that you will no any else where for food
which of the following is a stimulus, which response?
A. The recess bell ringing in a elementary school
B. Your mouth watering at sight of food on a plate
C. A sudden drop in air temperature
D. A flu virus entering your body
E. Getting "butterflies" in your stomach before giving a speech
Answer:
A. Stimulus
B. Response
C. Stimulus
D. Stimulus
E. Response
Explanation:
Which statement below best explain the difference between microevolution and macroevolution
A. Biodiversity (macroevolution) is a result of natural selection whereas microevolution studies changes due to extinction
B. Natural selection (microevolution) focuses on a adaptation change within a species whereas macroeveolution studies similar features among species
C. Evolution (both micro & macro) takes thousands or millions of years; however, due to the complexity of DNA- microevolution usually takes longer.
D. Microevolution explains how new & different species evolve from natural selection and Macroevolution studies the different anatomical features from the DNA mutations.
Answer:
C
Explanation:
Rearrange the steps of a tsunami formation in the correct order
1. two tectonic plates slide past each other underwater, causing a large movement of water
2. large ocean waves form
3. large ocean waves move in all directions away from the shifting plates
4. large ocean waves slow down and increase in height as they reach the coast
Answer:
two tectonic plates slide past each other underwater, causing a large movement of water large ocean waves form .large ocean waves move in all directions away from the shifting plates .large ocean waves slow down and increase in height as they reach the coastExplanation:
Tsunamis are initiated underwater and usually happen as a result of underwater earthquakes which can be initiated when tectonic plates slide past each other.
This causes a large movement of water such that large waves form and move away in al directions from the source. As these waves approach the shore they slow down speed but this only increases their height such that when they make landfall the effect could be devastating.
Give three reason why specialized systems are necessary in large multicellular organisms
Answer:
Specialized systems are necessary in large multicellular organisms since 1. there is a division of labor between cells, 2. many individual cells cannot work together without coordination, and 3. most of the cells are not in direct contact with the outside environment
hope it helps
pls mark me as brainliest
Specialized systems are necessary in large multicellular organisms since 1. there is a division of labor between cells, 2. many individual cells cannot work together without coordination, and 3. most of the cells are not in direct contact with the outside environment.
Please help me I beg you please help
Answer:
A-T
T-A
T-A
C-G
A-T
G-C
G-C
C-G
T-A
A-T
Answer:
ATTCAGGCTA= TAAGTCCGAT
Explanation:
adenine pairs with thymine with 2 hydrogen bond in DNA and cytosine pairs with Guanine with 3 hydrogen bonds .
____is a restriction to the flow of electrons
Answer:
Impedance.
Explanation:
Conductors allows the flow of electrons and Impedance restricts it.
Explain how a. temperature and b. light intensity 0 affect the rate of transpiration.
Answer:
Explanation:
Transpiration can be regarded as process involving water movement through a plant, it involves evaporation from aerial parts. These aerial part could be such leaves, stems or flowers.
A)Temperature
During the day period when the weather is hot there would be increase in evaporation of water from the leaves of plants, due to this transpiration is increased
B)Light intensity
When there is bright light, when the light intensity heat the plants, the stomata would be opened so that carbon dioxide is supplied for photosynthesis, and more water would be evaporated out through the leaves of the plant, then transpiration increase
At the zoo, Anya observes that individuals of a certain kangaroo species have slightly different sizes and colors. What characteristic of populations is Anya observing?
O adaptation
O evolution
O selection
O variation
In a food chain that includes, in order, plants, markhors, and snow leopards, what roles do markhors play? (Select all that apply.)
Answer:
-They are eaten by snow leopards
-They eat plants
Explanation:
Which organism would look most like organism
Answer:
the last answer
Explanation:
because f,g,h both come from a so you can be sure