Explanation-Answer:Enzymes can be regulated by other molecules that either increase or reduce their activity. Molecules that increase the activity of an enzyme are called activators, while molecules that decrease the activity of an enzyme are called inhibitors.
Search the NIH gene database for the term colorblindness. Use the results of the database search to explain how a father and mother who are not colorblind could have a son who is colorblind. Your model can be a pedigree chart, a Punnett square, or a diagram of chromosomes.
Answer/Explanation:
Red/green colorblindness is a recessive, X-linked condition. That means that the affected gene is on the X chromosome, and that the phenotype will only be present if there is no "healthy" gene, which is dominant to the mutated gene.
For two unaffected people to have an affected son, the mother must be a carrier. Remember, females have two X chromosomes and males have one. So if a female is a carrier of the colorblindness mutation, she will have one copy of the mutation and one normal copy of the gene, and will therefore be unaffected.
The punnet square (attached) shows that all their female children would be unaffected (have the B gene), but 1:2 male children would be colorblind, as their only copy of the gene is mutated (b).
Answer:
The person on top is awesome appreciate!!
Explanation:
got it right on edmmentum
What properties of carbon explain carbon’s ability to form different large and complex structures?
How do scientists exploit the plasmids in bacteria?
A) They multiply the cells.
B)They use them as vectors.
C)They express plasmids.
D)They nullify their effects.
Answer:
C
Explanation:
Primers can be exploited for sequence verification of plasmids
Answer: B: They use them as Vectors.
Explanation:
I took the test.
Which statement describes gravity?
There is no defined unit of measurement for gravity.
Gravity is the force that pulls objects toward Earth’s center.
Objects that have a small mass will have no gravitational pull.
Gravitational pull between two objects decreases as the mass of one increases.
Answer:
The answer is B. Gravity is the force that pulls objects toward Earth's center.
Explanation:
Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun.
Answer:
Gravity is the force that pulls objects toward Earth’s center
Explanation:
Which process connects glycolysis and the citric acid cycle?
lactic acid formation
acetyl CoA formation
electron transport
Krebs cycle
The process which connects glycolysis and the citric acid cycle is acetyl CoA formation.
GlycolysisGlycolysis is the reaction pathway busy which a glucose molecule is converted to two pyruvate molecules with the production of two net ATP molecules.
Citric acid cycleThis is a cyclic reaction pathway in which a mole of acetyl CoA is oxidized to two molecules of carbon (iv) oxide with the production of the reducing equivalents NADH and FADH2 as well as two ATP molecules.
Acetyl CoA formationThe pyruvate from glycolysis is oxidized to an acetyl CoA molecule by the pyruvate dehydrogenase complex. The acetyl CoA produced then enters the citric acid cycle.
Therefore, the process which connects glycolysis and the citric acid cycle is acetyl CoA formation.
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Answer:
It's B
Explanation:
I took one for the team.
How do ocean currents affect the paths of hurricanes?
You're enjoying playing with your neighbor's new kittens. You notice than some of them look identical to the mama cat, while others looks different from the mom and from each other. You remember from your science class that traits are inherited from parents. All BUT ONE of these traits is inherited.
Answer:
The answer is WEIGHT
Explanation:
Why do you think the size of a white dwarft affects its visual luminosity?
Answer:
White Dwarfs are extremely difficult to detect as they are quite small compared to a Star. If the area is small the Luminosity is low, which would make it harder to see the white dwarfs due to the low amount of its luminosity.
Explanation:
The Big Bang Theory is an example of which kind of theory of creation of the
universe?
Expansion
Steady State
Unchanging
Moving
Why is the cycling of matter vital to the success of an ecosystem?
Answer:
This is essential because all organisms depend on one another and is vital for the survival of living organisms. These organisms are linked by the flow of nutrients which is engineered by the nutrient cycles.
Which of the following college courses would be necessary when obtaining a degree in risk management?
Advanced Decision analysis
Pharmacology
Microbiology
Basic anatomy
Answer:
A. Advanced Decision analysis
Explanation:
Risk management can be defined as the process of identifying, evaluating, analyzing and controlling potential threats or risks present in a business as an obstacle to its capital, revenues and profits. This ultimately implies that, risk management involves prioritizing course of action or potential threats in order to mitigate the risk that are likely to arise from such business decisions.
Hence, the college course which would be necessary when obtaining a degree in risk management is Advanced Decision analysis because it will help you to measure, analyze and build decisions such as cluster analysis towards risk management and analysis.
Answer:
Advanced decision analysis
Explanation:
I took the quiz on edge
which I true of the rock layers shown below
Answer:
C
Explanation:
The fossil can get lifted due to water and other components
Examine the following list of questions.
1. Why are kids afraid of ghosts?
2. Should I feed the raccoons that visit my trash can?
3. How does mouse color affect mouse survival?
4. Does a mother duck love her babies?
Which statement correctly identifies the scientific question and describes why the question is scientific?
Answer:
I think it is 3
Explanation:
The other questions can be explained as an opinion but 3 can be studied and it can be experimented.
The cell membrane of a tube worm maintain a stable internal environment by:
Which of the following statements is correct? *
Protons are found in the nucleus of an atom
Neutrons are negatively charged
Protons are negatively charged
Electrons are found in the nucleus of an atom
Help PLEASE!!!!!!
Just as energy flows through an ecosystem, matter also moves from organism to organism and from organisms to the environment. Using either a kelp forest or a hydrothermal vent ecosystem as an example, explain how carbon can move through the organisms
Answer:
The seaweed in the Kelp forest goes through photosynthesis, takes in carbon, other organisms eat the seaweed and take in the carbon.
What process allows Na+ and K+ to move in and out of the cell simultaneously?
ANSWERS:
A.Simple Diffusion
B.Facilitated Diffusion
C.Active Transport
D.Osmosis
Answer:
The correct answer is: C. Active Transport.
Explanation:
Because Na+ and K+ are ions, which makes them charged molecules, they can only diffuse through the cell membrane when using specialized protein channels. This is called facilitated diffusion and is a form of passive transport because sodium and potassium move following their gradients, which are made of the difference in concentration between the inside of the cell and the outside of the cell. For example, potassium is highly concentrated inside the cell and poorly concentrated outside the cell, so potassium diffuses from the inside to the outside to even the concentrations.
But the question asks in which process Na+ and K+ move in and out of the cell SIMULTANEOUSLY, so the answer is actually active transport. Active transport is the opposite of passive transport. While passive transport occurs naturally and doesn't need ATP (energy) to happen, active transport needs ATP because it moves molecules AGAINST their gradient. One of the most famous and important structures involved in active transport is the Na+/K+ pump, which consists of a specialized protein using energy to enter 2 potassium ions and take out 3 sodium ions at the same time. This Na+/K+ is fundamental to maintain the gradients, which are important for the correct functioning of many cells.
describes natural selection?
The process of making proteins is called
Answer:
translation
Explanation:
Answer:
Translation
Explanation:
3. Which structure is specific to eukaryotic cells?
O nucleus
O cytoplasm
DNA
O cell membrane
Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes. However, unlike prokaryotic cells, eukaryotic cells have: a membrane-bound nucleus. numerous membrane-bound organelles (including the endoplasmic reticulum, Golgi apparatus, chloroplasts, and mitochondria)
Six white-tailed deer and six sika deer were enclosed in a pasture for observation during an eight-year study in central Texas. White-tailed deer are a native species to central Texas, while
sika deer are a nonnative species to central Texas. White-tailed deer feed on flowering plants and the tips of trees and shrubs but do not eat grass. Sika deer feed on flowering plants, the
tips of trees and shrubs, and grass. All other grazing animals were kept out of the pasture during the study. The number of sika deer more than doubled after the eight years, while the
population of white-tailed deer decreased by 50 percent.
Which of the following statements best supports the results from the study?
A
The sika deer are generalists, while the white-tailed deer are specialists.
B
The sika deer out competed the white-tailed deer in consuming flowering plants and shrubs.
с
Parasites infected the sika deer population but did not infect the white-tailed deer population
D
Change in the local climate reduced the availability of food resources for the white-tailed deer population
Kiki
B. The sika deer out competed the white-tailed deer in consuming flowering plants and shrubs.
Would the construction of this master-planned community impact the carrying capacity of the state’s ecosystem?
Answer:
Are you against or with?
Explanation:
,.;1q23wt4y5eu6ri7ertyur
why are index fossils useful to geologist
a.they tell the relative age of the rock in which they occur
b. they tell the ages of many different rock layers
c.they tell the age of the rock at one location only
d. they tell the absolute age of the rock in which they occur
Answer:
Explanation:
Index fossils (also known as guide fossils or indicator fossils) are fossils used to define and identify geologic periods (or faunal stages). Index fossils must have a short vertical range, wide geographic distribution and rapid evolutionary trends.
Index fossil, any animal or plant preserved in the rock record of the Earth that is characteristic of a particular span of geologic time or environment. A useful index fossil must be distinctive or easily recognizable, abundant, and have a wide geographic distribution and a short range through time. Index fossils are the basis for defining boundaries in the geologic time scale and for the correlation of strata. In marine strata, index fossils that are commonly used include the single-celled Protista with hard body parts and larger forms such as ammonoids. In terrestrial sediments of the Cenozoic Era, which began about 65.5 million years ago, mammals are widely used to date deposits. All of these animal forms have hard body parts, such as shells, bones, and teeth, and evolved rapidly.
Which reason best explains why dead specimens must be used with transmission electron microscopes?
A.) Electrons pass over the specimen.
B.) The lights that are used are harmful to the specimens.
C.) Specimens are placed in a vacuum.
D.) The image that is produced is two dimensional.
Answer:
C. Specimens are placed in a vacuum
Answer:
C. Specimens are placed in a vacuum
Explanation:
Since transmission electron microscopes must be used in a vacuum the specimen cannot be living. In a vacuum, there is no oxygen so nothing could survive it.
When and how were the first trans fats made with vegetable oil?
Answer:
Artificial trans fat dates back to the early 1900s when German chemist Wilhelm Normann found that liquid vegetable or fish oils could be treated with hydrogen gas to make them solid or semi-solid.
which organelle in the cell maintains homeostasis
are lipids that serve as chemical messengers.
a
RNAs
b
Enzymes
C Steroids
d Proteins
Check it
Answer:
C. Steroids
Explanation:
Some lipids such as steroid hormones serve as chemical messengers between cells, tissues, and organs, and others communicate signals between biochemical systems within a single cell.
Answer:
steroids
Explanation:
so c
What is the molecule depicted in the figure above and in which organelle would it most likely be created?
A. ATP, the mitochondria
B. ATP, the nucleus
C.ADP, the chloroplast
D. ADP, the ribosome
Answer:
The answer is A.
Explanation:
ATP, the mitochondria
The molecule depicted in the figure above is ATP and the cell organelle in which it would most likely be created is: the mitochondria.
Cell organelles can be defined as the internal organs that are typically responsible for the performance of various functions (tasks) within the body of a living organism such as an animal, plant, and humans, especially for the survival of the organism.
Some examples of cell organelles found in the body of living organisms include the following:
Nucleus. Cytoplasm. Cell membrane. Chromosome.Endoplasmic reticulum (ER). Golgi apparatus (bodies).Vesicles.Mitochondria.Mitochondria is commonly referred to as the "power house" of a cell because it is saddled with the responsibility of providing and transforming all of the energy required by living organisms in the form of adenosine triphosphate (ATP).
In conclusion, it is very important that energy (ATP) is provided by mitochondria for the survival and optimum performance of a living organism.
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what way does the glucose go?
Answer:
The stomach and small intestines absorb the glucose and then release it into the bloodstream. Once in the bloodstream, glucose can be used immediately for energy or stored in our bodies, to be used later
Why is using the presence of chromosomes inside of a cell NOT a reliable method to
determine if the cell is a prokaryote or a eukaryote?
Because both prokaryotic and eukaryotic cells have chromosomes (prokaryotes, and more specifically, bacteria, generally have just one chromosome, but there are some bacteria as well as archaea—which are also prokaryotes—that have multiple chromosomes).
Since the chromosomes are DNA molecules present in both the prokaryotic and eukaryotic cells, it is not a reliable method to determine if a cell is prokaryotic or eukaryotic
The nucleus of a eukaryotic cell is bounded by internal membrane, therefore, it is distinctive.
In contrast, the nucleus of a prokaryotic cell lacks internal membrane, hence its nucleus is not distinctive.
Chromosomes are Deoxyribonucleic (DNA) molecules that carry genetic information of a cell or organism.
The chromosomes are present in both the eukaryotic and prokaryotic cells. Chromosomes present in the eukaryotic cells are called eukaryotic chromosomes while chromosomes present in the prokaryotic cells are called prokaryotic chromosomes.
Since the chromosomes are DNA molecules present in both the prokaryotic and eukaryotic cells, it is not a reliable method to determine if a cell is prokaryotic or eukaryotic
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