DNA has _____ strands and mRNA has ______ strand of nucleotides
Answer:
DNA has 2 strands and mRNA has 1 strand of nucleotides.
DNA has 2 strands and mRNA has 1 strand of nucleotides.
Deoxyribonucleotides is simply referred to as the fundamental (basic) unit of a deoxyribonucleic acid (DNA).
Basically, deoxyribonucleic acid (DNA) comprises two (2) strands of nucleotides which are arranged in a double helix.
On a related note, a messenger ribonucleic acid (mRNA) refers to a molecule that is complementary to the template strand of deoxyribonucleic acid (DNA).
Hence, mRNA has one (1) strand of nucleotide and it is mainly used for the encoding of protein molecules.
In conclusion, deoxyribonucleic acid (DNA) has two (2) strands of nucleotides while messenger ribonucleic acid (mRNA) has one (1) strand of nucleotide.
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How does deforestation affect coral reefs?
Answer: When the forest cover is lost, soil washes away into rivers that flow into the oceans and, they believe, onto coral reefs. That runoff adds nutrients to the ocean water.
Explanation: Basically, when this occurs, the roots are no longer attached to the soil, letting all the nutrients get ruined in the ocean water instead of feeding plants/animals/trees.
Which statement is not an example of intercellular communication? A message travels between gap junctions. An electrical signal causes muscle cells to contract together. A molecule stimulates a target cell via a receptor. A message is distributed across plasma membrane.
Answer: D
Explanation:
A message distributed across a plasma membrane is not an example of intercellular communication. Therefore, option D is correct.
What is intercellular communication?information that is transferred from one cell to another. Cells communicate with one another by making physical touch or by releasing a chemical that is subsequently absorbed by another cell. Cells must communicate with one another in order to develop and function appropriately.
Multicellular organisms use four different types of chemical signaling to communicate with one another: paracrine, autocrine, endocrine, and direct touch.
Examples of intercellular communication are when a message travels between gap junctions, an electrical signal, causes muscle cells to contract together, and a molecule stimulates the target cell via a receptor. Hence, option D is correct.
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What is the purpose of the cellular process
The correct answer is H. transcribing information in the DNA sequence for the use by the cell
Explanation
The process shown in the image is DNA transcription, this is the first procedure in gene expression. In this process, the information contained in the DNA sequence is transferred to the protein sequence using various RNAs as intermediaries. During this, DNA sequences are copied to RNA by an enzyme called RNA polymerase that synthesizes messenger RNA (maintains DNA sequence information for the use by the cell), so DNA transcription could also be called messenger RNA synthesis. According to the above, the correct answer is H. Transcribing information in the DNA sequence for the use by the cell.
what are the characteristics for induction?
Carbon dioxide most likely enter the cell through which of the following processes
Answer:
Simple diffusion through the membrane
Explanation:
Oxygen and carbon dioxide move across cell membranes simple diffusion, a process that requires no energy input and is driven by differences in concentration on either side of the cell membrane.
help pls I rlly need it?:(
Answer:there is no question
Explanation:
Match the behavior type with the corresponding action.
1. migration
reflex
2. putting a puzzle together
conditional response
3. getting hungry before lunch time
instinct
4. brushing your hair
trial and error
5. eye blinking
habit
Answer:
instinct=migration
trial and error=putting a puzzle together
conditional response=getting hungry before lunch time
habit=brushing your hair
reflex=eye blinking
I hope this helped and was explained better
The behavior type of response with the corresponding action is instinct-migration, trial and error-putting a puzzle together, conditional response-getting hungry before lunchtime, habit-brushing your hair, and reflex-eye blinking.
What is the corresponding action?The brain control action is regulated by the body some are involuntary and others are voluntary it creates a rhythm in our body to make the system regulate.
Migration is instinct but putting puzzle is a trial and error condition, when the eye is blinked is a reflex action, and crushing your hair is a habit while getting hungry before lunchtime is a conditional response.
All the action of the body is controlled by the body's action some signals are sent to the body to regulate every action to control conditional response or habit.
Therefore instinct-migration, trial and error-putting a puzzle together, conditional response-getting hungry before lunchtime, habit-brushing your hair, and reflex-eye blinking.
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Which process allows ions to move across a semipermeable membrane from
where the concentration of the ions is low to a where their concentration is
even higher?
A. Diffusion
B. Osmosis
C. Passive transport
D. Active transport
SUBMIT
The process that allows ions to move across a semipermeable membrane from where the concentration of the ions is low to a where their concentration is even higher is active transport (option D).
What is active transport?Active transport is the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
In biology, active transport moves molecules or ions across a cell membrane from a region of lower concentration to a region of higher concentration i.e. against the concentration gradient.
Therefore, according to this question, option D best describes the process that moves ion from a lower to a higher concentration.
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The process that allows ions to move across a semipermeable membrane from where the concentration of the ions is low to where their concentration is even higher is active transport.
The correct option is D.
What is active transport?Active transport in cellular biology refers to the movement of molecules or ions across a cell membrane against the concentration gradient from a location of lower concentration to a region of higher concentration.
Cellular energy in the form of ATP is needed for active transport in order to achieve this movement.
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Which of the following organisms are prokaryotes?
1. plants
2. animals
3. bacteria
You are a molecule of water. Choose a starting point in the water cycle and describe the process you would go through to move through the entire cycle.
Answer:
I would start on Evaporation. I will then have to go through condensation, then precipitation, then a surface runoff then into groundwater which will start the evaporation process all over again :)
What types of rocks do the numbers 2, 3, and 5 represent, in that order?
a. igneous, sedimentary, metamorphic
b. metamorphic, igneous, sedimentary
c. sedimentary, igneous, metamorphic
d. sedimentary, metamorphic, igneous
Answer:
d) sedimentary, metamorphic and igneous
Answer:
The answer is B
Explanation:
what does nucleic acids have in common with carbohydrates and proteins
Answer:
proteins, nucleic acids ,and carbohydrates can form from all elements
Explanation:
Answer:
Carbohydrates have carbon, hydrogen, and oxygen in their structures.Proteins have amino and carboxyl groups in their structures.
The nucleic acids have phosphate, sugar residue, and a nitrogenous base in their structures. It suggests that all these molecules are grouped on the basis of some common groups.Which phrase describes elevation?
the height of a feature above sea level
the distance of a feature above the clouds
the distance above the lowest point in the area
the height of a feature above the nearest mountaintop
Answer:The height above sea level
Explanation: just did it
Where is the capsule located in cells?
What word is used to describe the presence of oxygen
Answer:
Explanation:
5%
Answer:
aerobic
Explanation:
plss answer it’s due in 5 min
Answer:
No they do not because the traits they have don't depend on their lives its the health they have.
Explanation:
Answer:
It can, because if the animal take example a bear was born with traits of short legs and small claws, he won't be able to run as fast or do as much damage to the prey if it caught up. then the bear will have a small chance of surviving due to the lack of food
Explanation:
what is the meaning of cycle
what is Methanobrevibacter ruminantium's effect on digestion in cattle? Beneficial Pathogeni Neither helps nor hurts
Answer:
It is beneficial
Explanation:
Which of the following is NOT a necessary input for the process of cellular respiration? 1. CO2 (carbon dioxide) 2. Glucose 3. Sugar 4. O2 (oxygen)
Answer:
CO2
Explanation:
Hope this helps :)
CO2 (carbon dioxide) is NOT a necessary input for the process of cellular respiration.
What is cellular respiration ?
A series of chemical reactions known as cellular respiration break down glucose into ATP, which can be used as energy to power numerous body processes. Cellular respiration has three main stages: the citric acid cycle, glycolysis, and oxidative phosphorylation. The citric acid cycle takes place in the mitochondrial matrix, glycolysis takes place in the cytosol, and oxidative phosphorylation takes place on the inner mitochondrial membrane. Glucose, ATP, and NAD+ are the cellular respiration starting reactants, the rate-determining enzymes for cellular respiration are phosphofructokinase-1, pyruvate dehydrogenase, and isocitrate dehydrogenase, and the final products include ATP and water. One or more enzymes involved in cellular respiration, like succinyl-CoA-synthase or pyruvate kinase, are typically disrupted by diseases that affect this process.Glycolysis is the only process that can take place without oxygen, and only two ATP molecules can be produced for each glucose molecule. ATP and H2O are the two final end products of cellular respiration. Glycolysis produces two pyruvate molecules, four ATPs (a net of two ATP), two NADH molecules, and two H2O molecules.One acetyl-CoA, one NADH, and one CO2 are produced for each pyruvate molecule when oxygen is present. One GTP, three NADH, one FADH2, and two CO2 are the products of the TCA cycle. GTP is an energy-rich compound similar to ATP that is typically used in environments with lower pH. The electron transport chain can then use NADH and FADH2 to make more ATP as part of oxidative phosphorylation.
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4) Spindle fibers form
Which of the following choices places the processes in order as they occur during the cell cycle?
Answer:c
Explanation:
Answer:
its c
Explanation:
whats the difference between aerobic and anaerobic respiration
Answer:
Aerobic respiration is a set of metabolic reactions that take place in the presence of oxygen, occurring in a cell to convert chemical energy into ATPs. Anaerobic respiration is a process of cellular respiration where the high energy electron acceptor is neither oxygen nor pyruvate derivatives.
Explanation:
What happens when the seafloor spreads?
A: Basalt cools to form a new crust near the mid-ocean rift.
B: New crust moves away from the mid-ocean rift.
C: Old crust moves closer together.
D:New crust forms near the continental slope.
Answer:
A
Explanation:
lava can erupt into water, when it cools it can create new land which is called sea floor spreading.
Answer:
A
Explanation:
I got the same answer from k12
Which scenario best describes motion?
A.) a toy train in position 4 on a number line
B.) a race track that is 100 meters long
C.) a ball rolling from point A to point B
D.) a student living 150 miles from Chicago
Where does photosynthesis occur?
PLS HELPP
Answer: Leaf
The leaf absorbs sunlight and carbon dioxide, and later on it produces oxygen for animals to breathe. Photosynthesis is the process of using the sun's energy to make energy for the plant.
In a strike-slip fault, the rocks on either side of the fault slip past each other sideways with little
Which choice has eukaryotic animal cells?
oak
liver
Lactobacillus
virus
Answer: He's correct, liver.
Explanation:
A mitochondrion has two membranes. The inner membrane is highly folded, as shown in the diagram below.
Outer
membrane
Inner
membrane
The folds greatly increase the membrane's surface area. This improves the ability of the mitochondrion to do
which of the following?
O convert solar energy to chemical energy
Odigest metabolic wastes in the organelle
O produce ATP during cellular respiration
move the cell through water
Answer:
convert solar energy to chemical
Explanation:
the mitochondria is the power house of the cell
The folds greatly increase the membrane's surface area. This improves the ability of the mitochondrion to produce ATP during cellular respiration. Thus, the correct option is C.
What is Cellular respiration?Cellular respiration is the process through which biological fuels are oxidized in the presence of an inorganic electron acceptor in the cell such as oxygen to produce large amounts of energy, to drive the bulk production of ATP (Adenosine triphosphate) in the mitochondria.
A large number of folds are present in the mitochondrial membrane to increase the capacity of the mitochondrion to synthesize ATP molecules, the inner membrane of the mitochondria is folded to form cristae in the membrane. These folds allow a much greater amount of electron transport chain (ETC) enzymes and ATP synthase to be packed into the mitochondrion membrane.
Therefore, the correct option is C.
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How does sleep help prevent dementia?
Answer:
Beta-amyloid is a metabolic waste product that’s found in the fluid between brain cells (neurons). A build-up of beta amyloid is linked to impaired brain function and Alzheimer’s disease. In Alzheimer’s disease, beta-amyloid clumps together to form amyloid plaques, which hinder communication between neurons. Impaired sleep has been associated with Alzheimer’s disease. Lack of sleep has been shown to elevate brain beta-amyloid levels in mice
Effects of Temperature
on Enzyme Activity
Enzyme Activity
0 10 20 30 40 50 60
Temperature (°C)
Which is the MOST valid conclusion based on this graph?
