Which of the following statements about mutations is FALSE?
a. Mutations always decrease an organism's fitness.
b. Somatic cell mutations do not lead to evolution.
c. Mutations occur in all species.
d. Mutations are the ultimate source of all genetic variability.
e. Mutations can be induced via ultraviolet radiation.
Answer:
A: Mutations always decrease an organism's fitness.
Explanation:
Looking at the given options, the one that is false is option A because generally speaking, for a population whereby a trait is being exposed to stabilization of selection over time, the mean will certainly remain approximately the same.
Do organisms have feelings?
Most human beings do
Answer:No i believe only Animals and Humans have feelings.
Butter is solid at room temperature because *
0 it has gone through a hydrogenation process.
Othey have double bonds in the hydrocarbon tails.
there are fewer hydrogens attached to the carbons.
there are more hydrogens attached to the carbons.
Experiment 2.) Pidge is able to clone each GLOW gene and express these proteins in yeast. She decides to test the function of the genes in the pathway based on their protein function in vitro. Pidge has generated a primary antibody to GLOW1. Pidge wants to demonstrate that the GLOW1 protein and physically interact with the GLOW2 and GLOW4 proteins. Question 9b.) What in vitro test can she perform? (3pts)
Answer:
Co-immunoprecipitation
Explanation:
Co-immunoprecipitation is a bio-technique use to analyze the physiological relevance of protein to protein interactions by binding the protein with special antibodies. With this vitro-test, a sample of a protein substance can be isolated and concentrated from thousands of other proteins.
Which group of elements most readily combines with Group 17 elements?
a. Group 1
b. Group 17
c. Group 18
d. none, as Group 17 is the most stable group
Answer:
a. Group 1
Explanation:
Group 17 elements react most with group 1 elements because group 1 elements are metals.
what molecules from proteins when linked together with covalent bonds
Answer:
Amino Acids
Explanation:
they link with each other through means of peptide bonds and as a result form proteins
What determines if the opsin protein will start a signal?
Answer:
I have no idea
Explanation:
sorry I thought I could help
100 POINTS I WILL MARK!!!!!
In a paragraph, explain why it requires at least two body systems to perform the function you selected.
C6H12O6 + 6O2 --> 6H2O + 6H2O]\
Is the equation above balanced?
No; there are un equal numbers of each type of atom on both sides.
No; the mass of reactants and products do not equal one another.
Yes; it has equal numbers of each type of atom on both sides.
Yes; the mass of the reactants are equal.
Answer:
no
Explanation:
the carbon isnt there at all
What causes nucleotides to switch locations in a DNA molecule?
Answer:
DNA is a dynamic and adaptable molecule. As such, the nucleotide sequences found within it are subject to change as the result of mutation. Depending on how a particular mutation modifies an organism's genetic makeup, it can prove harmless, helpful, or even hurtful.
Explanation:
What is the common ratio of the sequence
6
,
−
3
,
1.5
,
−
0.75
6,−3,1.5,−0.75?
Answer:
3
Explanation:
Physical and chemical properties of
the earth
A. are the same in every layer.
B. are the same in the inner and outer core.
C. are used to distinguish the layers of the earth.
D. never change.
Answer:
B...................
Answer: C
Explanation: are used to distinguish the layers of the earth
I don’t really know the answer to this question
Please help
Answer:
B: The Engine
Explanation:
I choose that because it has the most energy throughout the train
Answer:
c engine
Explanation:
A scientist is developing a potential treatment for cancer. She grows cells in hundreds of petri dishes and exposes the dishes to environments that are known to cause cancer. After exposure, the scientist determines that some of the petri dishes have cancer cells.What factor do all the petri dishes that contain cancer cells have in common?
Answer:
they are normal mutations you can never have a cure to cancer you would have to throw a lot of your DNA and genes away to have a less chance of dying but we could slow or kill cancer but no way to prevent it from happning as it happens everyday to you but those cells have a higher chance to become cancer becuase of those thing that help cells to become cancer.
Explanation:
Select the item(s) that describe a producer. A. takes energy from the sun B. helps rot dead organisms C. fungus D. tall grass E. food is mostly animal F. plant eater
Answer:
A, D
Explanation:
Producers are organisms that get their energy from inorganic matter
Tall grass is a plant that gets it's energy from the sun
☁️My Answer☁️:
The answer options I would choose are A. takes energy from the sun, and and D. Tall grass, because producers take the energy from the Sun and they also live of of tall grass.
I do hope you enjoy the rest of your day! (ɔ◔◡◔)ɔ ♥
Also, I apologize if I am incorrect.
-Kirby ★ ツ ✌
Plant cells usually can be distinguished from animal cells because only plant cells have
Answer:
A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane.
Explanation:
Brainliest please?
the 1918 influenza epidemic killed between 50 million and 100 million people worldwide. This epidemic happened near the end of world war 1. more people died from the influenza epidemic than were killed in the war. which of the following explains why this virus was so deadly worldwide?
A. Influenza started off in the lysogenic cycle.
B. Influenza is a lytic cycle virus
C. Influenza remained dormant after the war.
D. Influenza replicates using mitosis.
Answer I think its c srry if im wrong it just makes sense
Explanation:
Influenza virus was so deadly worldwide because Influenza started off in the lysogenic cycle.
What do you mean by lysogenic cycle?The lysogenic cycle is a method by which a virus can replicate its DNA using a host cell. Lysogeny, or the lysogenic cycle, is one of two cycles of viral reproduction Lysogeny is characterized by integration of the bacteriophage nucleic acid.
The phage infects a bacterium and inserts its DNA into the bacterial chromosome, allowing the phage DNA (now called a prophage) to be copied and passed on along with the cell's own DNA.
In the lysogenic cycle, phage DNA is incorporated into the host genome, forming a prophage, which is passed on to subsequent generations of cells. Environmental stressors such as starvation or exposure to toxic chemicals may cause the prophage to be excised and enter the lytic cycle.
Learn more about lysogenic cycle:
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Hawk
Sun
Sun
Grasshopper
Grass
MAAN
Was
In the diagram above, where is light energy converted to chemical energy?
Answer:
There is no diagram in this question, however, the question can be answered based on general understanding.
Light energy is converted to chemical energy by PLANTS (GRASS) i.e from the sun to grass
Explanation:
This question is trying to depict a food web or chain of organisms feeding on one another in order to obtain energy. However, in this process, only one organisms amongst the list of organisms is capable of converting LIGHT energy to CHEMICAL ENERGY.
This organism is called a PRODUCER and it is the GRASS (plant). Green plants like the grass in this question are autotrophs i.e. are capable of producing their own food via the process of PHOTOSYNTHESIS. In this process of photosynthesis, plants capture light energy from the sun and convert it to chemical energy stored in sugars.
Leon listed the steps involved when auxin affects plant growth in response to light. The steps are listed in random order.
1 - Auxin builds up in the stem.
2 - The stem bends toward light.
3 - Auxin moves to the shaded side of plant.
4 - Cells on the shaded side grow more quickly.
Which shows the correct order of steps involved when auxin affects plant growth?
1, 4, 2, 3
4, 3, 2, 1
3, 1, 4, 2
2, 3, 1, 4
The correct answer is 3,1,4,2
5 foods that can be processed using cold pack method
A general function of membranes in the cell is to
Answer
According to ThoughtCo,
The cell membrane (plasma membrane) is a thin semi-permeable membrane that surrounds the cytoplasm of a cell. Its function is to protect the integrity of the interior of the cell by allowing certain substances into the cell while keeping other substances out.
Hope this helps! <3
Answer:
The cell membrane, therefore, has two functions: first, to be a barrier keeping the constituents of the cell in and unwanted substances out and, second, to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.
Explanation:
Which is a sustainable practice?
Answer:
A (the first one)
Explanation:
Sustainable practice include operating wind farms.
What do you mean by sustainable practice?It means that the resources are limited so one should use it wisely and carefully so that it will last long.What are wind farms?"A wind farm also called a wind power station or wind power plant, is a group of wind turbines in the same location used to produce electricity."Coal which is used to produce electricity is a non-renewable resources and will get exhausted after a certain time.So wind farms are set up to generate electricity by using renewable resource(wind).Hence, the correct answer is operating wind farms.
To know more about wind farms here
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What organelles are only found in plant cells
Answer:
cell wall, chloroplasts, plastids, and a central vacuole, if u dont give me brainliest ill rob u for ur points no joke no scam
bruising of brain tissue
Answer:
Cerebral contusion
Explanation:
a form of traumatic brain injury, is a bruise of the brain tissue. Like bruises in other tissues, cerebral contusion can be associated with multiple microhemorrhages, small blood vessel leaks into brain tissue. Contusion occurs in 20–30% of severe head injuries.
what is the state of maintaining a stable internal environment despite changing external conditions.
Answer:
Homeostasis
Explanation:
Homeostasis- state of maintaining a stable internal enviornment despite changing external conditions
When you use the same histone protein as your standard, you determine the histone protein concentration to be 5 mg/ml. Explain the discrepancy (pick ONE answer): (5 points) a. The histone protein has fewer basic amino acids than albumin. b. The histone protein has more acidic amino acids than albumin c. The histone protein has more basic amino acids than albumin d. The histone protein contains more methionine than albumin
Answer:
A. The histone protein has fewer basic amino acids than albumin
Note: The question is incomplete. The complete question is given below:
You use the Bradford (coomassie) assay to determine the concentration of a whey protein. You use bovine albumin as your standard. You determine the histone protein concentration to be 3 mg/ml. When you use the same whey protein as your standard, you determine the histone protein concentration to be 5 mg/ml. Explain the discrepancy (pick ONE answer): (2 points) The histone protein has fewer basic amino acids than albumin. The histone protein has more acidic amino acids than albumin c. The histone protein has more basic amino acids than albumin d. The histone protein contains more methionine than albumin
Explanation:
The Bradford assay measures the concentration of proteins in a a protein sample using a color change that occurs from brown to blue when the protein in the sample binds to Coomassie dye. The Coomassie dye specifically binds to basic and aromatic amino acids in the protein. A standard curve is created using absorbance data from samples of proteins of known concentrations. The spectrophotometer is set to read at 595 nm in the Bradford assay as the peak absorbance of Coomassie Blue once bound to proteins occurs at 595 nm.
The higher the concentration of proteins, the higher the color intensity and the higher the absorbance values.
Since when bovine serum albumin was used as standard, the sample protein concentration was lesser than when the protein sample was used as standard, this means that the sample protein binds less to Coomassie dye as a standard thereby giving a higher sample protein concentration than the BSA standard. Therefore, the histone protein has fewer basic amino acids than albumin.
Which two organ systems work together to perform gas exchange and deliver oxygen to the rest of the body?
A. Digestive & cardiovascular
B. Respiratory & cardiovascular
C. Respiratory & excretory
D. Skeletal & muscular
Answer:
I believe its B. respiratory & cardiovascular
Explanation:
blood exchanges oxygen poor blood for oxygen rich blood with the help of the respiratory system
Calculate the oxygen partial pressure, in torr, at which 97% of myoglobin molecules exist in the oxygen-bound state. Assume p50(Mb).
Answer:
Partial pressure of oxygen = 90.53 torr
Explanation:
Using the formula; YO₂ = (pO₂)ⁿ / (pO₂)ⁿ + (p₅₀)ⁿ
where Y is the fraction of oxygenated myoglobin, pO₂ is the partial pressure of O₂, expressed in torr (760 torr = 1 atmosphere) and p₅₀ is the partial pressure of O₂ required to bind 50% of the myoglobin molecules, n is Hill's constant which describes the degree of cooperativity among interacting ligand sites or subunits
p₅₀ = 2.8 torr
n = 1 for myoglobin calculations since it only contains one heme group
YO₂ = 97% or 0.97
pO₂ = x
substituting the values
0.97 = x (2.8 + x)
x - 0.97x = 2.716
0.03x = 2.716
x = 2.716 / 0.03
x = 90.53 torr
what is the main advantage of small cell size
Answer:
The advantage of small cell size is that substances like organic molecules and ions can diffuse easily into the cells whereas wastes can diffuse easily out of the cells.
would an electric eel be able to shock predators if its cells run low on ATP?
Answer: no.
Explanation:
