Answer:
The correct answer is - 10.6666 channels.
Explanation:
Given:
numbers of clusters duplicated = 16 times
The frequency bands for mobile unit transmission are - 825 to 845 MHz
The frequency bands for base station transmission = 870 to 890 MHz
The required bandwidth for each one-way direction of channels = 30 kHz
Formula:
the number of simultaneous communications that can be supported by each system [tex]k_{sys}[/tex] = [tex]MB_{CL}[/tex]/[tex]b_{ch}[/tex]
Solution:
The required bandwidth for each two-way direction of channels = 2 × 30 kHz
then, according to the formula the number of simultaneous communications that can be supported by each system
[tex]k_{sys}[/tex] = [tex]MB_{CL}[/tex]/[tex]b_{ch}[/tex]
k_{sys} = 16×40/60
[b_{ch} = (845-825) + (890-870) = 20+20=40)]
= 10.6666.
After visiting a factory on a field trip, your little sister is really concerned about her carbon footprint. Name two ways that she can reduce her carbon footprint at home. please help
Scientists looking for a repressor of the androgen receptor (AR)-mediated transcription gene discovered a protein, Ankrd1. ARs were observed to bind to Ankrd1 and, in cells where Ankrd1 was over-expressed, AR-mediated transcription was inhibited. The scientists also detected lower levels of ARs when Ankrd1 was overexpressed using chromatin immunoprecipitation (ChIP) and Ankrd1 was not detected by ChIP.Based on these observations, which of the following conclusions would the scientists most likely draw?
A. Ankrd1 is binding to ARs and preventing ARs from binding to the promoter, which inhibits mRNA transcription
B. Ankrd1 is binding to the promoter and blocking ARS from binding, which prevents transcription of AR- mediated genes.
C. Ankrd1 is binding to multiple sites and causing DNA to loop, preventing ARS from binding and activating gene transcription
D. Ankrd 1 is binding to chromatin, recruiting proteins that remove acetyl groups, and silencing transcription of that region of DNA.
Answer:
D. Ankrd 1 is binding to chromatin, recruiting proteins that remove acetyl groups, and silencing transcription of that region of DNA.
Explanation:
Ankrd is a binding chromatin, there is recognition that mutation is deregulating the chromatins. The proteins remove acetyl groups and then the region for DNA transcript. The recruitment chromatin is associated with proteins are enzymes which are chemical moieties.
Answer:
Ankrd1 is binding to ARs and preventing ARs from binding to the promoter, which inhibits mRNA transcription
Explanation:
Just took the test :)
describe the benefits to using tissue cultures to study medications used for treating cancer cells
Medications can be tested on cell cultures instead of being injected into patients unnecessarily.
Cancer cells continue to grow in the cultures uncontrollably allowing scientists to test multiple medications on the cancer cells.
To which biomolecular group h2o belongs?
Answer: I believe its the symmetry group C2v
Explanation:
:)
Human blood types have 3 alleles: A, B, and O. A and B are codominant, while o is
recessive to A and B.
If a person has the genotype AO what is their blood type?
a. O
b. B
C. AB
d. A
Answer:
D
Explanation:
A genotype of AO means that the person only has the A antigen, so their blood type is just A. AO and AA have different genotypes but the same blood type.
can anbody help me??
i need help asap
Answer:
c
Explanation:
the tiger
Most of the improvement in agricultural crop yields has been through inputs: getting more fertilizer to the plant, decreasing weeds, spacing, reducing loss from pests and local environmental changes. But the next big engineering feat will be with the plant molecular pathways themselves, in particular, photosynthesis. The article refers to C3 and C4 plants. What are plant geneticists trying to accomplish
Answer:
It changes the genetic makeup to produce more yielding plants.
Explanation:
Plant geneticists trying to produce a plant which used all the inputs efficiently in order to produce higher yield with the use of low inputs. C3 plants are inefficient plants because they uses resources not efficiently while on the other hand, C4 plants are those which utilizes resources efficiently means more growth by using less inputs or high conversion power so we can say that the Plant geneticists produce a plant by changing their genetic makeup.
Please WHAT IS MEMBRANE POTENTIAL
Answer:
Membrane potential is a potential gradient that forces ions to passively move in one direction.
Explanation:
Membrane potential is a potential gradient that forces ions to passively move in one direction: positive ions are attracted by the 'negative' side of the membrane and negative ions by the 'positive' one.
A wrinkled, green seed and a round yellow seed were grown into plants and mated. In the F1 generation, half the seeds were round and yellow; the other half were round and green. The round yellow seeds were grown into plants and allowed to self-fertilize. In the F2 generation, what fraction of the seeds will be genotypically identical to the plants of the parental generation
Answer:
Parental generation: rr yy and RR Yy
wrinkled, green round, yellow
F2) 2/16 RRYy
1/16 rryy
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
Continent
shorating
38
Weleanstaland)
А
D
A
B
c
D
E
F
Answer: honestly there isnt enough of an explintaion
Explanation:
As Earth's climate changes, which of the following do scientists expect?
The correct option is (c) Decreased Biodiversity.
The term "biodiversity loss" describes the reduction or extinction of biological diversity, which is defined as the range of living creatures that inhabit the earth. their various degrees of biological organization, their individual genetic variability, and the natural patterns found in ecosystems.What is causing the biodiversity to decline?The variety of all living creatures on our world, known as biodiversity, has been decreasing at an alarming rate in recent years. This decline is primarily attributable to human activities such changing land use, pollution, and climate change.The main direct cause of biodiversity loss is land use change (primarily for large-scale food production) which drives an estimated 30% of biodiversity decline globally.Learn more about Decreased Biodiversity brainly.com/question/18200563
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The Punnett square is used to
A determine the probability of offspring traits.
B determine the parent alleles of the offspring.
C determine the location of mutated genes.
D determine the makeup of chromosomes.
dlhybrid cross practice
when a single cell of E. coli reproduces it first duplicates it's dna next the cell elongates as each copy of dna is pulled toward opposite ends of the cell the membrane then pinches inward, dividing the cytoplasm into two halves and producing two daughter cells what is true about these daughter cells
Answer:
They are identical
Answer:
They are genetically identical to the parent because they are produced by asexual reproduction.
Hope this helps!
Explanation:
Combining your knowledge of rates of diffusion with your knowledge of muscle physiology, explain why it is advantageous for oxidative muscle fibers (which depend on aerobic metabolism to generate ATP) to have smaller diameters compared to glycolytic muscle fibers.
Answer:
To provide quick energy to the muscles.
Explanation:
It is advantageous for oxidative muscle fibers to have smaller diameters compared to glycolytic muscle fibers because these fibers depend on aerobic respiration to provide energy to muscle contractions. This smaller diameter enables the oxidative muscle fiber to move very quickly in order to provide quick energy to the muscles. If their diameters are big so they are unable to provide quick energy in the form of ATP to the muscles for their contractions.
1
What are pterosaurs?
А
extinct flying reptiles
B
extinct dinosaurs
с
living descendants of dinosaurs
D
flying reptiles alive today
What factors can impact the population size of a species?
Answer:
Food availability
Water availability
Reproductive success
Predation
Fitness
Resistance to pests/diseases
Temperature
Sunlight
Answer: Birth rate, death rate, migration, natural selection
Explanation: The population can grow or shrink depending on the birth and death rates. If there are more births than deaths then your population will grow. If there are more deaths than births then your population will shrink.
A remote island in Lake Superior is uninhabited by humans. The primary mammal populations are white-tailed deer and wolves. The island is left undisturbed for many years, with plenty of vegetation. Circle the best choice to complete the statement about what will happen to the average populations of the animals in the stable ecosystem over time. On average, the populations of deer and wolves will fluctuate, but: *
Answer:
It will go up and down and might go straight up or straight down.
Explanation:
4. What is the difference between a Nucleolus and a Nucleoid?
The nucleus is the largest and the most important cell organelle in a eukaryotic cell. A nucleus is a membrane-bound organelle that houses the genetic material of eukaryotes in DNA. The nucleus consists of protein fibres or the DNA inside chromatin fibres. Nucleoids contain the genetic material of prokaryotes in the cytoplasm. The nucleoids usually consist of a single chromosome.
Let us look at more difference between nucleus and nucleoid in the table given below.
Answer: It has different letters.
Explanation: Nucle = prefix.
Olus in Nucleous and Oid in Nucleoid
What is a meiosis and how it is formed
Answer:Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.
Which group classifies a molecule with a structure composed primarily of monosaccharides?
A.nucleic acids
B.lipids
C.carbohydrates
D.proteins
Answer:
C. Carbohydrates
Explanation:
I'm sorry if it is wrong
What happens when heat from inside Earth is transferred to its surface?
a Warmer material is pushed to the crust
b More dense material is pushed to the crust
c Warmer material is pushed to the outer core
d Less dense material is pushed to the outer core
Explanation:
B. MORE DENCE MATERIAL IS PUSHED TO THE CRUST
If proteins do not have the correct structure, they cannot function properly. Protein misfolding is a cellular malfunction that occurs when proteins do not properly get modified and folded into their correct 3D shape after they are initially synthesized.
Which of these cell structures is most likely responsible for protein misfolding?
NUCLEOUS
LYSOSOME
ENDOPLASMIC RETICULUM
MITOCHONDRIA
Answer:
The correct answer is - ENDOPLASMIC RETICULUM
Explanation:
In the cell, all cell organelle performs a specific function. Protein synthesizes with the help of ribosomes then they are sent to the endoplasmic reticulum for folding the proteins to their correct form or shape before sending them to the Golgi body for packaging.
Protein folding is an important function performed by the ER and must be correctly folded into particular 3-D shapes in order to function correctly and if not correctly folded then degraded by lysosomes.
How does a monocot root differ from a dicot root? (select all that apply)
A. pith at the center of the vascular cylinder
B. xylem at the center of the vascular cylinder
C. fibrous root system
D. taproot system
Answer:
C & D
Explanation:
Fibrous means many roots and tap root means one long root
Evolution shows us that all living organisms have a
Answer:
cell membrane, nucleus, nucleolus, nuclear membrane, cytoplasm, endoplasmic reticulum, Golgi apparatus, ribosomes, mitochondria, centrioles, cytoskeleton, vacuoles, and vesicles.
Explanation:
Cytokinesis in animal cells happens when the:
A: cell wall pinches in to separate the cytoplasm.
B: cell plate forms across the middle of the cell.
C: chromosomes line up in the middle of the cell.
D: cell membrane pinches in to separate the cytoplasm.
Answer: D
Explanation:
Cytokinesis is basically the formation of 2 new cells. C describes metaphase and A and B are talking about cytokinesis in a plant cell because animals don't have cell walls or plates. So the right answer has to be D
Which of the following describes why phospholipids are better suited to forming the cell membrane than regular fats or steroids? A:Their glycerol head allows them to bond easily with most other molecules. B: Their phosphate group gives them a hydrophilic end. C: Their three-pronged structure allows them to store large amounts of energy. D: Their unique ringed structure provides them with the ability to regulate cell metabolism.
Answer:
B
Explanation:
Answer:
Their phosphate group gives them a hydrophillic end.
Explanation:
I got it right on the test.
explain why SARS-COV-2 is classed as a pathogen
Answer:
SARS-CoV-2 is the seventh coronavirus strain known to infect humans and it causes respiratory disease in humans. These viruses infect humans and are currently causing a pandemic in the world.
A pathogen is an infectious organism that causes illness or disease to its host. There are many types of pathogens that infect the body of the host that disrupts the normal physiological process of an organism. SARS CoV2 is also a pathogen as it infects the human body and disrupts its physiology and causes disease.
Which of the following statements concerning diffusion and active transport is correct?
A. Active transport requires energy while diffusion does not
B. Diffusion requires energy while active transport does not
C. Both processes require energy
D. Neither diffusion nor active transport requires energy
Answer: A
Explanation:
Active transport requires energy while diffusion does not
Active transport pumps molecules and ions against a concentration gradient. Thus, option A is correct.
What is the main role of active transport?As contrast to assisted diffusion, which carries molecules or ions along a gradient of concentration without the application of energy. An organism occasionally needs to transfer items up or down a gradient of concentration.
In order for cells to acquire molecules or ions from the environment in opposition to the concentration gradient, active transport is a crucial activity.
Because active transport is not passive and requires molecules to move against a concentration gradient, it requires energy.
On the other hand, metabolic products or electrolytes that are substantially loaded into cells might be expelled in opposition to the concentration gradient.
Therefore, Active transport requires energy while diffusion does not.
Learn more about Active transport here:
https://brainly.com/question/12133248
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In a population of birds, the average beak size is favored. What type of selection is this?
a. directional
b. disruptive
c. tabilizing
d. kin
Answer:
C. Stabilizing selection
Explanation:
Natural selection, is of three different types namely: disruptive selection, directional selection and stabilizing selection. Disruptive selection occurs when the two extremes of a population are being favored over the average or intermediate.
Directional occurs when one extreme of a population is favored. However, in STABILIZING SELECTION, the average or intermediate population is favored over both extremes of a population. Example is when the average-sized beaks of a bird population is being favored over the long and short ones (extremes).
Answer:
the answer is stabilizing.
Explanation:
I got it right on my test.