Sickle disease cell is a recessive genetic disorder. How many copies of the mutated gene (HbS allele) do you need to develop full blown sickle cell anemia?Please explain as well
If a bot gets first, Ill give the person who gives a correct answer 30 points and brainliest.
Answer:
It takes two copies of the mutant gene.
Explanation:
One from each parent, to give somebody the all-out sickness. Numerous individuals have only one duplicate, the other being typical.
Hope this helped and have a great afternoon!
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Which statement best describes the distribution of
resources around the earth?
Please help me :(
Answer:
Resource distribution refers to the geographic occurrence of resources on earth. In other words, where resources are located. Any particular place may be rich in the resources people desire and poor in others. As a result, resources are distributed unevenly across the globe.
Explanation:
brainliest pleahs
Which occurs just before a volcanic eruption?
Lava flows onto the sides of the volcano.
The expanding gases push magma through the pipe.
A pocket of magma forms beneath the volcano.
New rocks are formed as lava hardens.
Answer:
The expanding gases push magma through the pipe.
Explanation:
The activity that happens before the volcanic eruption is the expanding gases pushing magma through the pipe.
What do you mean by Volcanic eruption?A volcanic eruption may be defined as an activity that is responsible for an opening in the earth's crust through which lava, volcanic ash, and gases exit.
Before the volcanic eruption, several gases create an extreme pressure that efficiently pushes the magma through the pipe which leads to the flow of lava onto the sides of the volcano.
Therefore, the correct option for this question is B.
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which enzymes are found in detergents that remove mucus and oil stains from cloth soaked in water ?
Answer:
Most biological laundry detergents contain lipase and protease enzymes, both of which are found in the body. Lipases break down fats and oils, while proteases work to break down protein chains. Their ability to break down these compounds makes them excellent for stain removal.
Which property of water makes it helpful to use in car radiators?
Answer:
Specific heat capacity is the property of water that makes it useful in car radiators.
Explanation:
Water has a high specific heat capacity. So it is used as a coolant in car radiators and helps maintain temperature of car engines.
What are Cyanobacteria ?
Explain biological principles behind preservation of meat by refrigeration
Answer:
yes because at the room temperature the bacteria and fungi grow but in the refrigerator the temperature is lower than the room temperature which is not sufficient for growing microbes due to which we preserve in refrigerator.
I hope u understand
The fact that many of the proteins produced by humans have identical or nearly identical counterparts in chimpanzees suggests
that
A)
all proteins are basically the same.
B)
humans and chimps share a common ancestor.
o
humans and chimps have convergently evolved.
D)
humans and chimps actually belong to the same species.
Answer: B)
humans and chimps share a common ancestor.
Explanation:
What are the inputs and outputs of trees?
Answer:
Inputs: Carbon Dioxide (CO2), Water (H2O), Nutrients/Minerals, Sunlight
Outputs: Oxygen (O2), Sugar, Water Perspiration
The genetic code is the set of instructions that
translates genetic material into proteins. This code
defines how sequences of three nucleotides specify
which amino acid will be added next during protein
synthesis. Each sequence of three nucleotides is called
A. a protein
B. a codon
C. a Mutagen
D. a DNA molecule
Answer:
DNA molecule
Explanation:
Each sequence of three nucleotides is called a codon. Therefore, the correct answer is option B.
Codons are named by the request for their bases. The three stop codons in mRNA are UAA, UAG, and UGA, where U represents uracil, A for adenine, and G for guanine. Stop codons signal the end of protein synthesis. They can be found in DNA or mRNA.
They are three-nucleotide sequences that encode a particular amino acid. During the translation process, the tRNA (transfer RNA) molecules contain anticodons that aid in the transfer of amino acids to the mRNA.
A codon is a sequence of three nucleotides in DNA or RNA, also known as a trinucleotide. It is a unit of genomic information that encodes a specific amino acid or signals the end of protein synthesis (stop signals).
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Adam writes the following hypothesis, "Grasshoppers prefer plants with higher levels of
sugar content" His hypothesis was not supported by his data but he wants to find out if
other insects prefer plants with higher levels of sugar in them. Why is his original
hypothesis still valuable?
A. It can lead to further investigations
B. It is clearly written
C. It involves the study of insects
D. It was disproven
Answer:
b
Explanation:
i got a hundred on it
Two balloons are rubbed with fur, which creates an excess of electrons on the balloons. If the balloons are hung from flexible wires from a shared point overhead, what will happen to the balloons?
A.
They will repel one another and the angle between them will be proportional to the charge on each.
B.
They will attract one another and sustain that attraction until the charges have redistributed.
C.
They will swing like a pendulum, with the period based on the magnitude of the transferred charge.
D.
They will join at a single point where the excess charge has collected and then they will repel one another.
What is the relationship between mass and solar energy in plants?
Answer:
Plants increase in mass as they convert solar energy to chemical energy
(True or False) The replication of DNA requires little to no energy expenditure
Answer:True
Explanation: The process of breaking the hydrogen bonds between the nucleotides of the double helix strand of the DNA requires energy.
What can be done to eliminate the dangers of antibiotic resistance that are all over the
world?
Answer:
There are many ways that drug-resistant infections can be prevented: immunization, safe food preparation, handwashing, and using antibiotics as directed and only when necessary. In addition, preventing infections also prevents the spread of resistant bacteria.
Explanation:
Which substance is NOT a known carcinogen?
a) latex
b) tobacco products
c) radiation
d) sunlight
Carcinogens are the agents that cause cancer in an organism and can be man-made or natural. Latex is not a type of carcinogen. Thus, option a is correct.
What are carcinogens?Carcinogens are the substances that can be a chemical or a biological compound that are capable of causing cancers. They can be natural agents like UV rays from sun, solar radiations, or viruses or can be a man-made substance like tobacco, nicotine, fumes.
These substances are capable of causing genetic mutations by altering the genomic sequence and the nitrogenous base that affects the genotype and the phenotype. The carcinogens leads to growth of abnormal and cancerous cells. Latex is a secondary metabolite that doe not causes cancer.
Therefore, option a. latex is not a carcinogenic agent.
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The illustration shows structures into animals these are known as??? helpp
PLEASE HELP PLEASE PLEASE PLEASE
Answer: B
Explanation: This should be the correct answer(: since hereditary means passing genetical material/information from parent to offspring (one gerneration to another)
Why do scientists compare the DNA of bananas, worms, fruit flies, and humans? How can this information be helpful?
Scientists compare the DNA of bananas, worms, humans, etc., by aligning homo-logous sequences, which is useful to discover gene function and infer evolution.
What is sequence homo-logy?The expression sequence homo-logy makes reference to the similarity between nucleotide sequences due to the same evolutionary origin.
In genetics, nucleotide sequences are aligned to infer sequence homo-logy.The sequence homo-logy may result useful to discover gene function and determine evolutionary relationships.In conclusion, scientists compare the DNA of bananas, worms, humans, etc., by aligning homo-logous sequences, which is useful to discover gene function and infer evolution.
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Why aren't human populations evolving to produce immune systems that are able to fight off MRSA and other "superbugs"?
Answer: There are genes that code for different cell receptors that detect foreign substances. And for the immune system to fight these superbugs, the genes encoding these receptors must mutate and evolve. Humans have a slow rate of evolution, slower than bacterial evolution. Then not only human genes mutate at a very slow rate, but insect genes mutate very fast and can improve their strategy to evade the immune system.
Explanation:
A mutation is a random change in the nucleotide sequence or in a gene, which produces a variation in its characteristics and which is not necessarily transmitted to the offspring. They occur spontaneously by the action of mutagens, which are physical, chemical or biological agent that changes the genetic information of an organism and thereby increases the frequency of mutations above the natural level. In multicellular organisms, mutations can only be inherited when they affect the reproductive cells, called gametes (egg and sperm) A consequence of mutations can be, for example, a genetic disease, or it can also be a favorable improvement such as being able to fight against a virus. However, even if in the short term mutations could detrimental, they are essential for our long-term existence becuase without mutations there would be no change, and without change life could not evolve.
The immune system is the body's natural defense against infections, such as bacteria and viruses. The body attacks and destroys invading infectious organisms by the coordinated action of cells and proteins. Any substance or compound produced by an organism is a potential antigen when it is recognized as foreign by the immune system of another organism, whether it is of the same or a different species. In addition, the genes code for different cell receptors that detect these foreign substances. And for the immune system to fight these superbugs, the genes encoding these receptors must mutate and evolve. But, humans have a slow rate of evolution, slower than bacterial evolution. Then not only human genes mutate at a very slow rate, but insect genes mutate very fast and can improve their strategy to evade the immune system. Therefore, the human population may not have mutations that improve the immune system to help it fight againts these superbugs.
Which detail in the article BEST supports the
conclusion that the 5G network is more efficient
than other cellular networks?
Answer:c
Explanation:
Which of the following is true?
A. Renewable energy is over 90% of the energy
use in the United States.
B. There is NO renewable energy used in the
United States.
C. Renewable and fossil fuel energy use is about
equal.
D. Renewable energy use counts for less than
10% of the energy use in the United States.
Answer:
Renewable energy is over 90% of the energy use in the united states
How does the human brain receive messages and send signals to the body about what's happening?
Answer:
heres how
Explanation:
Neurons communicate with each other by sending chemical and electrical signals. Each neuron is connected with other neurons across tiny junctions called “synapses.” Impulses rush along tiny fibers, like electrical wires, from one neuron to the next. Electrical impulses travel through neurons.
Which of the following DOES NOT cause a mutation?
Environmental factors such as radiation and chemicals
Infectious agents like viruses and bacteria
Spontaneous mutations
Pure water
Need help on this and happy Mother’s Day spread some love to your mom
Answer:
I don't remember the answer for the first one but for the others
2nd question : homogenous and Dominate
3rd question: heterozygous
4th question : homogenous and Recessive
Explanation:
Why antibiotics are classified as drugs and useful drugs? Please helpp
Answer:
Antibiotics, also known as antibacterials, are medications that destroy or slow down the growth of bacteria. They include a range of powerful drugs and are used to treat diseases caused by bacteria. Antibiotics cannot treat viral infections, such as cold, flu, and most coughs.
Explanation:
Which of the following functions is controlled by the cell membrane?
a. excreting waste
b. producing energy
c. replicating DNA
d. assembling proteins
what's Ozone layer???
Answer:
The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains a high concentration of ozone in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere.
Explanation:
hope this helps you
what is photosynthesis
Photosynthesis is a synthesis of compounds with the aid of radiant energy especially in plants.
Radiant energy it transmitted in the form of electronmagnetic radiation; energy that exists in the absence of matter.
Synthesis is the process of producing a chemical compound usually by the union of simpler chemical compounds.
The combination of ideas into a complex whole.
Reasoning from the general to the particular or from cause to effect.
describe in your own words the cycle of an ecosystem
Answer:
An ecosystem is where there are many organisms such as plants and animals also including weather and landscape. Ecosystems have biotic and abiotic things . Ecosystems can be very large or very small.
Explanation: