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Related Questions
Vincristine is a drug used to treat cancer. It prevents spindle fiber formation during mitosis. Which one of these events CANNOT occur due to
the usage of Vincristine?
-sister chromatid separation
-DNA replication
-chromosome coiling
-cytokinesis
Answers
Cytokinesis cannot occur due to the usage of Vincristine as it prevents spindle fiber formation during mitosis. The correct option is D.
Vincristine is a medication that prevents spindle fibres from forming properly during mitosis, which prevents the sister chromatids from being separated and being pulled to the opposing poles of the cell.
Sister chromatid separation cannot take place adequately in the absence of functioning spindle fibres, which prevents mitosis from progressing normally.
Vincristine, however, has no direct impact on chromosome structure or organisation, DNA replication, chromosome coiling, or any other cellular processes.
Vincristine use does not directly stop these processes, despite the fact that the disruption of mitosis may have an indirect impact on them.
Thus, the correct option is D.
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Your question seems incomplete, the probable complete question is:
Vincristine is a drug used to treat cancer. It prevents spindle fiber formation during mitosis. Which one of these events CANNOT occur due to
the usage of Vincristine?
A -sister chromatid separation
B -DNA replication
C -chromosome coiling
D -cytokinesis
What do prokaryotic and eukaryotic organisms not have in common?
Group of answer choices
Cytoplasm
DNA
Ribosomes
Organelles
Answers
Answer:
They don't have DNA common. In prokaryotic cells there is a single piece of DNA whereas in eukaryotic there are multiple chromosomes.
What is the distance between Earth and the Moon?
364,000 km
384,000 light-years
364,000 light-years
384,000 km
Answers
Answer:
384,000 km or 238,900 mi :)
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What is responsible for production of a blood moon?
absorption of blue light by the Earth's atmosphere
absorption of red light by the Moon's atmosphere
absorption of blue light by the Moon's atmosphere
absorption of red light by the Earth's atmosphere
Answers
Answer:
Blood Moons happen during a total lunar eclipse. This occurs when the Earth moves between the Moon and the Sun, casting a large shadow on the Moon, putting the Moon in darkness.
Explanation:
hope it will help you
.
What happens during telophase of the cell cycle?
Chromosomes are pulled apart.
Chromosomes condense.
Chromosomes uncoil and the nucleus reappears.
Chromosomes line up.
Answers
The telophase of the cell cycle chromosomes uncoil and the nucleus reappears. That is option C.
What is telophase?Telophase is a stage of the cell cycle that occurs once the replicated, paired chromosomes have been separated and pulled to opposite sides, or poles, of the cell.
During the telophase stage, chromosomes arrive at opposite poles and unwind (uncoil) into thin strands of DNA, the spindle fibers disappear, and the nuclear membrane reappears.
Therefore, the telophase of the cell cycle chromosomes uncoil and the nucleus reappears.
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Compare and contrast cladistics and phylogeny. What are their advantages and disadvantages? Which is the most useful in understanding how an organism developed into its current form? Which concept most strongly supports your opinion about the origin of any given organism?
Answers
Cladistics categorizes organisms depending on the most recent common ancestor, whereas phylogeny analyses the history of the evolution of a given taxonomic group.
What is Cladistics?Cladistics is a subsystem of classification to organize organisms depending on the most recent common ancestor, which is based on observable (current) phenotypic/molecular features.
Conversely, phylogeny refers to how we interpret the relationships between organisms from an evolutionary point of view.
In conclusion, Cladistics categorizes organisms whereas phylogeny analyses the evolution of a given taxonomic group.
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Which of the following is true about the Moon?
A- The Moon has light of its own.
B- The Moon reflects the light of the Earth.
C-The Moon shines by reflecting the light of the Sun.
D-The Moon reflects the light of other stars in the sky.
Answers
Answer:
Your answer is C
Explanation:
Answer:
C
Explanation:
The moon reflects the light of the sun
Hsaio manages the finances for her company and has a particularly large amount of money budgeted for the purchase of calcium chloride, or cacl2. which type of company does hsaio most likely own?
Answers
Hsaio most likely own likely owns a catering company. calcium chloride is widely used in canned foods and vegetables.
Calcium chloride, a salt with the chemical formula CaCl2, is an inorganic substance. At room temperature, it is a white, crystalline solid that is very water soluble.Calcium chloride is a firming chemical that is used in the canning of vegetables, the firming of soybean curds into tofu, and the creation of a caviar alternative from fruit or vegetable juices. It is frequently utilized as an electrolyte in bottled water, sports drinks, and other beverages. The firming agent calcium chloride is commonly used in food to preserve pickles and other canned fruits and vegetables crisp and crunchy. The FDA recognizes calcium chloride it as generally safe.learn more about calcium chloride here:
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In which layer is lithification most likely to occur?
Answers
Answer:
Lithification is the process by which sediment turns into hardened rock. There are three ways in which lithification can occur. These processes are called compaction, recrystallization and cementation. It happens mostly in the subsoil.
Explanation:
Lithification is most likely to occur in sediments on the bottom of the ocean or other bodies of water.
What do you mean by lithification?Lithification is the process in which sediments compact under pressure, expel connate fluids, and gradually become solid rock. Essentially, lithification is a process of porosity destruction through compaction and cementation.
It refers to the process that loose and underconsolidated Sediment particles transform into hard and solid rocks. This process includes a number of geological processes, such as consolidation, deep bury, cementation, recrystallization and dehydration.
Sedimentary rocks are the product of 1) weathering of preexisting rocks, 2) transport of the weathering products, 3) deposition of the material, followed by 4) compaction, and 5) cementation of the sediment to form a rock. The latter two steps are called lithification.
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Phenylthiocarbamide (PTC), also known as phenylthiourea (PTU), has the unusual property that it either tastes very bitter or is virtually tasteless, depending on the genetic makeup
of the taster. There is a single gene which codes for a protein found in our tongues. PTC will bind with the protein if it present and a person will taste it. If the protein is not present,
PTC will not bind and a person cannot taste it. The ability to taste PTC is often treated as a dominant genetic trait. The dominant allele, T, causes a person to be able to taste PTC, and the recessive allele is represented as t. Assume that a population is in Hardy-Weinberg equilibrium and 16 individuals out of 100 are unable to taste PTC.
What are the allele
frequencies of T and t in this population?
A. The allele frequency of T is 0.80, and the allele frequency of t is 0.20
B. The allele frequency of T is 0.84, and the allele frequency of tis 0.16.
C. The allele frequency of T is 0.00, and the allele frequency of t is 0.40
D. The allele frequency of T is 0.50, and the allele frequency of t is 0.50.
Answers
Answer: a
Explanation:
A
The allele frequencies of T and t in this population are the allele frequency of T is 0.80, and the allele frequency of t is 0.20. Therefore, option A is correct.
What is allele frequency ?The relative frequency of an allele at a certain locus in a population, represented as a fraction or percentage, is known as gene frequency or allele frequency. The percentage of chromosomes in the population that carry that allele relative to the whole population or sample size is what is being discussed.
In human statistical genetics, the frequency of an allele in the population is a fundamental quantity. A lot of population and medical genetic studies are based on this amount. Allele frequencies are altered by numerous evolutionary factors. As a result, allele frequencies can be utilized to guess at previous evolutionary occurrences.
The distribution of genetic variation in a population is shown by the relative genotype frequencies. The fraction of all copies of a gene in a population that carry a certain allele is known as relative allele frequency.
Thus, option A is correct.
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PLEASE I REALLY NEED HELP! THIS ASSIGNMENT IS DUE TODAY!!
Part D
If different masses of water are heated to the same temperature, which sample will absorb more energy? Base your argument on the definition of heat and what you learned from the experiment.
Answers
If different masses of water are heated to the same temperature, the sample that will absorb more energy will be the mass of water with the greatest amount of water mass, because the larger the material, the greater the amount of heat needed.
What is the specific heat of water?Water has a specific heat of 1 cal/g. ºC This means that the energy of 1 cal is required for a variation of 1 °C in 1 g of water.
With this information, we can conclude that Water's specific heat power is 4.2 joules per gram per Celsius degree or 1 calory per gram per Celsius degree.
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Which of the following is a mismatch?
A. Omethanogens - prefer anaerobic environments
B. thermophiles - live in extremely cold temperatures
C. thermoacidophiles - live in high temperatures and acidic environments
D. halophiles - live in high salt environments
Answers
What may occur when convergent boundaries interact?
formation of island chains
creation of mid-ocean ridges
creation of convection currents
formation of rift valleys
Answers
When convergent boundaries interact, the formation of island chains happens. The correct option is A.
What are convergent boundaries?
Convergent boundaries is the name given to those plates which collide with one other, and they may both go upside or one plate from beneath the other plate.
Convergent boundaries collide in three forms and for different types of landforms. The types are:
Ocean-oceanOcean-continentContinent-continent.When convergent boundaries interact, they create a chain of islands. When one plate moves over another, a hot plate erupts lava and forms volcanic eruptions.
Thus, the correct option is A. formation of island chains regarding when convergent boundaries interact.
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Answer: A, formation of island chains
Explanation: got it on edge
What is A molecule ?
Answers
Answer:
molecule is a smallest particle in atom
Explanation:
don't know
Name two cell components(parts) that bacteria and human epithelial cells have in common
Answers
Answer:
So first of all we have cell membrane salman green is an essential feature of all living cells. The next we have is genetic material in the form of D and E. This present in bacteria amoeba and epithelium sold as well. In addition to this cytoplasm, cytoplasm is also present in a bacteria amoeba and epithelium.
The cell components common in a bacterial and the epithelial cells are the cell membrane and ribosome.
Prokaryotic cells lack membrane-bound organelles like the nucleus, endoplasmic reticulum, and mitochondria while eukaryotic cells do; the only organelle that is present in both types of cells is the ribosome and the cell membrane.
Cell membrane is the gatekeeper of the cell as it check the entry and exit of the material in the cell. Eukaryotic ribosomes are significantly larger than prokaryotic ones, but both types of ribosomes perform the same task—protein synthesis.
Therefore, the bacterial cell and the epithelial cells have cell membrane and ribosome in common.
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Fill in the blanks to complete each statement about igneous rock formation.
rocks form when
cools below Earth's surface.
rocks form when
cools on Earth's surface.
Answers
Plutonic or intrusive igneous rocks form when it cools below the Earth's surface.
Igneous rocks form when it cools on the Earth's surface.
How is the rock formation process?They originate from the solidification of magma inside the Earth's crust or when lava comes out of the mantle, through a volcanic eruption. When magma cools slowly inside the crust, turning into rock, a process called intrusion occurs.
With this information, we can conclude that Igneous rock or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic and Intrusive, or plutonic, igneous rock forms when magma remains inside the Earth's crust where it cools and solidifies in chambers within pre-existing rock.
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Answer:
intrusive, magma
extrusive, lava
Explanation:
edge
c)Phage therapy may be considered the 21st century answer to combatting
bacterial infections. Discuss the potential merits and problems associated with
using this as a clinical treatment.
What are the pros and cons?
Answers
Answer:
Phages are currently difficult to prepare for use in people and animals.
It's not known what dose or amount of phages should be used.
It's not known how long phage therapy may take to work.
It may be difficult to find the exact phage needed to treat an infection.
Explanation:
Question 1 of 10
Which best explains how the human body obtains energy from food?
OA. By exhaling carbon dioxide
B. By breaking and reforming chemical bonds
C. By inhaling oxygen into the lungs
D. By removing dangerous wastes
SUBMIT
Answers
Answer:B
Explanation: this answer makes the most sense and is correct
A hunting and gathering society typically had
Opermanent living sites
O access to one crop
O a large stable population
O
a wide variety of food sources
Answers
____________feed on animal waste and debris
Answers
Answer:
I'M NOT TELLING YOU!Just kidding
Explanation:
They are called scavengers.Scavengers are those animals that feed on debris and animal wastes and such like that.Examples of scavengers:Vulture, Coyote, hyenas, jackals etc.Hope this helps.Good luck ✅.Evidence of an oxygen-rich atmosphere is the presence of
A cyanobacteria
B. trace fossils
C. banded iron formations
D. stromatolites
Answers
In addition to the outer cell membrane, certain cells contain inner membranes
that surround the individual organelles. Which of the following explains why
the presence of internal membranes affords these cells an advantage over
cells lacking such structures?
25ual
ea
C
A. The synthesis of cell components to support internal membranes
increases the cell's energy expenditures.
O B. Compartmentalization keeps different functions separated within
the cell.
O
C. Proteins and other molecules can move more slowly between
organelles via a transport system than by diffusion.
© D. The presence of internal membranes causes cells to be larger,
decreasing the cell's surface-area-to-volume ratio.
Answers
The statement that explains the presence of internal membranes that affords these cells an advantage over cells lacking such structures is compartmentalization keeps different functions separated within the cell. Thus, the correct option is B.
What type of cells has an internal membrane?The eukaryotic cells have an internal membrane that separates the cell from the inner environment to the outer and provides a suitable condition for metabolic activity.
Internal membranes also furnish the process of compartmentalization which are responsible for maintaining the functions separated from the cells with respect to its organelles.
Therefore, the correct option for this question is B.
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The star in the diagram
represents which of
these?
A. origin of replication
B. replication fork
C. replication bubble
D. Okazaki fragment
Answers
Answer:
B.) Replication fork
Explanation:
The replication fork is the point at which two strands of DNA separate via DNA helicase.
The origin of replication is the site on a singular DNA strand where replication begins. Here, complementary nucleotides begin bonding to the single-stranded DNA via DNA polymerase.
The replication bubble is created when DNA helicase separates a DNA strand. The DNA helicase does not separate the entire strand, but rather opens only certain sections at one time. This creates a "bubble" in the DNA strand where replication will take place.
Okazaki fragments are formed on the lagging strand of the single-stranded DNA. Because DNA is only created from the 5' to 3' direction, RNA primase must reposition itself after adding a primer (made of nucleotides). DNA polymerase then fills in these fragments with more complementary nucleotides in small sections.
Answer: B. replication fork
Explanation:
7 ways that invasive species affect the environment
Answers
Invasive species reduce biodiversity levels, create a nuisance, cause economic loss, and disrupt ecosystem equilibrium.
Effects of invasive speciesInvasive species tend to drive away or kill native species.Invasive species reduce the overall biodiversity of plants or animals in the ecosystem.They cause economic loss through the loss of important native species.They create nuisance in the environment and may be costly to get rid of.They affect ecosystem equilibrium by causing species change.They are usually difficult to manage.More on invasive species can be found here: https://brainly.com/question/21452505
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Archaeans are best known for being:
A. photoautotrophic
B. mixotrophic
C. Heterotrophic
D. chemoautotrophic
Answers
Which part of the scientific method is best illustrated by the
biologist wondering why there were so few frogs in the second
year compared to the first?
O forming a hypothesis
O making an observation and asking a question
O collecting data
O setting up an experiment
Answers
Answer:
I think it is making an observation and asking a question
Scientific methods are the procedural steps that involve experimentation to reach conclusion. The method best represents the observations and asking of questions. Thus, option B is correct.
What is the scientific method?The scientific method has been defined as the multistep process that involves various method procedures, including the questions, research topic issues, hypothesis, experimental and research tests, analysis of data, and drawing of conclusions.
The scientific method primarily starts with a question about the subject matter that needs to be solved for which the research is performed and a hypothesis is given. After a hypothesis, is established experiments are conducted so as to make observations.
The observations are then analyzed to draw conclusions to present the findings. This interpretation gives the solution to the presented problems. The biologist was asking questions when he observed and compared the population of the frogs in the first and second years.
Therefore, in option B. the biologist asked questions based on the observations.
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Whats the correct answer answer ASAP for brainlist
Answers
Answer:
Australia
Explanation:
it is 2.968 million square miles, therefore making it the largest country in Oceania.
How have federal and state authorities attempted to eradicate Burmese Pythons from the Everglades?
Answers
Federal and state authorities have attempted to eradicate Burmese pythons from the Everglades by allowing the hunting and trapping of these animals, giving rewards to these hunters.
How was the hunt to eradicate Burmese pythons from the Everglades?In Florida, they tried everything to end the Burmese python plague that threatens to devour native species of the Everglades, one of the most valuable wetlands in the world. They trained dogs to sniff them out, they were attracted with pheromones, they implanted radio transmitters to locate their hiding places, they set traps. But after several years of experimentation, the best method they have found is the most rudimentary. “With two hands and balls of steel”
With this information, we can conclude that Federal and state authorities have attempted to eradicate Burmese pythons from the Everglades by allowing the hunting and trapping of these animals, giving rewards to these hunters.
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about blood groups of different individuals. What is the importance of these different blood groups?
Kwlalzlzlzllallslslsl
Lllala
Answers
Answer:
Antigens are genetically determined—inherited from a combination of your parents' genes. There are many different blood type systems, but most people will be familiar with the two main blood groupings—the ABO and Rh (or Rhesus) systems. These systems lead to the eight commonly known blood groupings.
blood group A – has A antigens on the red blood cells with anti-B antibodies in the plasma. blood group B – has B antigens with anti-A antibodies in the plasma. blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma. blood group AB – has both A and B antigens, but no ..
Explanation:
https://www.nhs.uk/conditions/blood-groups/
Hope this helps!!
Which organism has membrane-bound chloroplasts and nuclei?
a. Volvox
b. Euglena
c. Oscillatoria
d. a, b, and c
e. a and b only
Answers
Answer:
euglena because it is an eukaryote