Chromosomes duplicate during which part of the cell cycle?interphaseprophaselate prophaselate telophase
Answers
As the cell cycle is divided into two main stages, the chromosomes duplicate during interphase. Interphase is the first stage of the cell cycle where the chromosomes are duplicated. The correct option is a.
In the interphase stage, the cell grows, replicates its DNA, and prepares for the next stage of the cell cycle which is the mitotic phase.
The cell cycle includes two main stages, the interphase stage and the mitotic phase. The interphase is a period between the cell divisions. During this period, the cell replicates its DNA and grows in size.
The interphase is divided into three parts:
G1 phase: This phase follows cell division and is the period when the cell grows in size, makes additional organelles, and begins metabolic activities.
S phase: In this phase, DNA replication occurs. At the end of this phase, the cell has doubled the amount of DNA it contains.
G2 phase: This phase is the period when the cell prepares for the process of cell division. The organelles are duplicated and other proteins are synthesized.
The cell cycle's mitotic phase is the process of cell division that is separated into four phases. These phases are prophase, metaphase, anaphase, and telophase.
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Related Questions
in this food web for a particular terrestrial ecosystem, arrows represent energy flow and letters represent species. which species is a primary producer?
Answers
A primary producer in this food web is a species that generates energy and food from an external source by using the process of photosynthesis. In this food web, the primary producer is represented by the letter "A".
This species is able to capture energy from the sun and convert it to food. Through the process of photosynthesis, A is able to convert light energy into glucose and other organic molecules. This process then provides a source of energy and nutrients for other organisms in the ecosystem, allowing them to survive and thrive.
A is also responsible for creating oxygen and releasing carbon dioxide, which are both essential for other organism's survival. The energy produced by A is used to create a foundation of support for the environment, feeding complex web of organisms and helping to maintain the balance of the ecosystem.
Through the process of photosynthesis, A is a keystone species as they are the initiators of essential and necessary energy production.
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Correct question is :
in this food web for a particular terrestrial ecosystem, arrows represent energy flow and letters represent species. what species is a primary producer?
what is a group of organisms with exactly the same traits called
Answers
Answer:
the group of organisms with exactly the same traits is called species
Transcription of ribosomal RNA is primarily the function ofA) primase.B) RNA polymerase I.C) RNA polymerase II.D) RNA polymerase III.E) mitochondrial RNA polymerase
Answers
Answer: Transcription of ribosomal RNA is primarily the function of RNA polymerase I.
So, the answer is B) RNA polymerase I.
Explanation:
The correct answer to the question is B) RNA polymerase I. RNA polymerase I is responsible for transcribing the large ribosomal RNA (rRNA) genes found in the nucleolus of eukaryotic cells.
These rRNAs are important components of the ribosomes, which are the cellular machinery responsible for protein synthesis. The transcription of rRNA genes by RNA polymerase I is a complex process that involves multiple steps and requires the involvement of several accessory factors. The transcription of rRNA genes is tightly regulated and is coordinated with other cellular processes to ensure that the appropriate levels of rRNAs are produced to meet the demands of protein synthesis. In contrast, RNA polymerase II is responsible for transcribing protein-coding genes, while RNA polymerase III is responsible for transcribing smaller non-coding RNAs, such as transfer RNAs and small nuclear RNAs. Mitochondrial RNA polymerase is responsible for transcribing the genes found in the mitochondrial DNA.
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slime molds are an example of this type of protist funguslike plantlike move produce their own energy diatoms dinoflagellates malaria
Answers
Answer:
Slime molds are example of protists that can produce energy
Explanation:
Slime molds are known as photosynthetic protist. They can produce their own foods. Like plants, slime molds also have cellulose in the cell walls of their spores. They are unicellular but they can form colonies.
Hence, it can be said that Slime molds are example of protists that can produce energy
Deforestation - amazon rain forest, brazil. On average, based on your answer to problem 4, how much deforestation occurred in this area per year (km2/yr)?
Answers
Answer:An increase in atmospheric carbon dioxide since the trees were taking in carbon dioxide from the environment
Explanation:
What are some Cons about cloning?
Answers
Answer:
Explanation:
The process is not entirely safe and accurate. Despite being genetically identical with each other, clones will not be the same regarding behavioral attributes. ... It is regarded as unethical, and the probability of abuse is very high. ... The offspring lack genetic uniqueness. ... It is not yet fully-developed.Answer:
1) The process is dangerous.
2) The process is not fully developed yet.
3) Cloning does not always work.
4) Faster aging.
Explanation:
Hope this helps
Temperature stratification is caused by improper ventilation. True False
Answers
False, because temperature stratification is not caused by improper ventilation.
The vertical variation in temperature within a space is referred to as temperature stratification. It is primarily brought on by convection, a natural phenomenon in which warm air rises and cold air sinks. A number of things, including temperature differences, fluctuations in air density, and thermal gradients, can cause this convection.
Temperature stratification is not primarily caused by ventilation, but ventilation can help to mitigate it by promoting air movement and eliminating stagnant pockets of warm or cold air. Temperature stratification can be impacted by a number of additional elements, including insulation, heating systems, and building design.
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A new litter of pupples was born. The pupples in the litter do not all look the same, which can be seen
In the picture.
Rom
Which part of the cell contains the information that controls the traits of these dogs?
Helpppppp
WILL GIVE BRAINLY
Answers
Answer:
Explanation:
A
the process of __________ is responsible for healing the damaged or worn out cells in our body. (pls answer fast!!)
Answers
Answer:
Mitosis
Explanation:
Mitosis is the process in which new cells are formed from older ones by equational division in which ploidy of the cell (chromosome number) remains the same.
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Explain how germinating peas use cellular respiration to obtain energy stored within their endosperm?
Answers
Answer:
Explanation:
Through aerobic respiration in the presence of oxygen they produce ATP. Explanation: Food reserves in the seeds will be hydrolyzed by the enzyme alpha amylase. ... These glucose molecules will enter into the glycolysis, TCA cycle and electron transport chain to produce ATPs.
Germinating peas use cellular respiration to obtain energy stored within their endosperm in the following way:
The endosperm is the tissue that has the function of accumulating the seminal reserves, which are the nutritional substances for the embryo, supplying all the energy necessary for it to begin its evolution.
During dormancy, the seed "waits" until conditions are correct and then germination begins.Germinating peas need to use stored energy reserves to form proteins, divide and maintain homeostasis (stable internal environment) and for this they carry out cellular respiration.The process begins by absorbing water and releasing a hormone called gibberellic acid, in turn, this substance is absorbed by the cells to form certain enzymes that will change the endosperm into sugar.Cells oxidize glucose (sugar) for energy, often this energy is used to convert ADP and phosphate into ATP, that is, the energy extracted from the sugar is stored by using it to synthesize the ATP molecule.This energy is used for germinating peas to actively divide and to maintain themselves.Therefore, we can conclude that germinating peas extract energy from endosperm into sugar through cellular respiration to create proteins, divide, stay alive and grow.
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What is the main difference between Biomass, & Biofuel?
Answers
Biomass refers to all organic material that comes from plants and animals. The sources of it may include plant-derived materials that include forestry residues and urban wood waste. On the contrary, biofuel refers to the energy sources that come from biological materials such as plant material and animal wastes. Both of them are renewable resources. Biomass is burned to produce electricity and biofuels can be converted into liquid fuels which replace petrol from fossil fuel and diesel.
Indicate the correct order of steps for a broth to agar plate transfer Rank the options below Remove a loopful of bacterial culture from the broth tube, pass the mouth of the tube through the Bunsen burner flame, and N replace the cap. Lift the lid of the agar plate slightly and streak the loop across the surface of the agar plate. Replace lid. Sterilize inoculating loop, remove cap of culture tube, and pass mouth of culture tube through the Bunsen burner flame. 1 Sterilize inoculating loop prior to replacing in loop holder.
Answers
The correct order of steps for a broth to agar plate transfer is:
Sterilize the inoculating loop prior to replacing it in the loop holder.
Sterilize the loop again, remove the cap of the culture tube, and pass the mouth of the culture tube through the Bunsen burner flame.
Remove a loopful of bacterial culture from the broth tube, pass the mouth of the tube through the Bunsen burner flame, and replace the cap.
Lift the lid of the agar plate slightly and streak the loop across the surface of the agar plate.
Replace the lid.
Sterilize the loop, transfer culture, and streak agar.
How do you transfer culture to agar using a loop?To transfer bacterial culture from a liquid broth to an agar plate, it is important to maintain aseptic technique to prevent contamination. The process involves sterilizing the inoculating loop prior to use by passing it through a flame. The culture tube's cap is removed, and the mouth of the tube is passed through the Bunsen burner flame to eliminate potential contaminants.
A loopful of the bacterial culture is then taken from the broth tube and the tube is promptly recapped. The lid of the agar plate is lifted slightly, and the loop is streaked across the surface of the agar to evenly distribute the culture. Finally, the plate's lid is replaced to maintain sterility.
This method allows for the growth of individual bacterial colonies on the agar plate, facilitating further analysis and experimentation.
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T/F:An individual with Turner syndrome has no Barr bodies
Answers
False.
An individual with Turner syndrome does have Barr bodies. Barr bodies are inactive X chromosomes that are seen as condensed heterochromatin in the nuclei of somatic cells of individuals with more than one X chromosome. In Turner syndrome, which typically involves the presence of only one X chromosome (45,X), there is still one Barr body visible in each somatic cell.
~~~Harsha~~~
False. An individual with Turner syndrome does have Barr bodies.
Turner syndrome is a genetic condition that affects females and is characterized by the absence or incomplete development of one of the X chromosomes. One of the consequences of Turner syndrome is the presence of Barr bodies.
Barr bodies are condensed, inactive X chromosomes that are visible in the nuclei of cells. In females, one of the two X chromosomes is randomly inactivated in each cell during early development. This inactivation process ensures dosage compensation between males and females, as both sexes normally have one active X chromosome. The inactive X chromosome condenses into a Barr body, which is typically seen as a small, dark-staining structure within the nucleus.
In individuals with Turner syndrome, who have only one X chromosome instead of the usual two, Barr bodies are still present. Despite the absence or incomplete development of one X chromosome, the remaining X chromosome will undergo inactivation, forming a Barr body in each cell. Therefore, it is incorrect to say that individuals with Turner syndrome have no Barr bodies.
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On the African savanna, grasses feed wildebeest, gazelles, and hares. Lions, hyenas, and cheetahs hunt the wildebeest and gazelles. Vultures eat the remains from predator kills. Bacteria and fungi break down anything that is left over from the carcasses. Dung beetles eat the feces left behind from grass-eating animals like hares and elephants.
Which organism is a detritivore in this example?
Answers
Answer:
dung beetles
Explanation:
they reuse our waste for their needs
most phospholipids move freely within a semifluid membrane ______.
Answers
Most phospholipids move freely within a semifluid membrane bilayer.
Phospholipids form a bilayer with their hydrophilic (water-loving) heads facing outward and their hydrophobic (water-fearing) tails facing inward. This arrangement creates a fluid and flexible membrane. The phospholipids have the ability to move laterally within the membrane, which is known as lateral diffusion.
This movement occurs because the lipid bilayer is not rigid but rather has a semifluid consistency. It allows phospholipids to constantly undergo lateral movement, interacting with neighboring molecules and adjusting their positions, contributing to the dynamic nature of the membrane and facilitating various cellular processes such as membrane fluidity, signal transduction, and protein recruitment.
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what is the differences between a girl and a guy?
Answers
Answer:
Guys produce different hormones, they have different private parts, and they usually have a different build than girls. They have facial hair
Explanation:
Sponges, cnidarians, and flatworms lack a specialized gas exchange surface because:
-they are too large for a circulatory system
-nearly all of their cells are in direct contact with the external environment
-countercurrent exchange mechanism cannot function in the environment they inhabit
-they can survive without oxygen
Answers
Sponges, cnidarians, and flatworms lack a specialized gas exchange surface primarily because nearly all of their cells are in direct contact with the external environment, making specialized structures unnecessary.
Sponges, cnidarians, and flatworms are simple organisms with relatively small body sizes and low metabolic rates. Unlike more complex animals, they do not possess circulatory systems for the transport of gases throughout their bodies. However, their body structures allow for a high surface area-to-volume ratio, enabling efficient gas exchange through simple diffusion.
These organisms are composed of relatively few cell layers, and the majority of their cells are in direct contact with the external environment. As a result, gases can easily diffuse across their thin cell membranes, eliminating the need for specialized respiratory structures. The simplicity of their body plans and their reliance on diffusion for gas exchange are sufficient for meeting their metabolic needs.
While sponges, cnidarians, and flatworms lack specialized gas exchange surfaces, it does not mean they can survive without oxygen. Like all living organisms, they require oxygen for cellular respiration to produce energy. However, their simple body structures and low metabolic rates allow them to obtain the necessary oxygen through direct diffusion across their cells' surfaces.
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The Beatles chew on the stems of mosquito shrubs, forcing the shrubs to grow new branches every Spring. The trees take up more nutrients from the soil to support the new growth. This means there are fewer nutrients for other plants, such as grasses. Partly due to the action of the beetle, the desert has changed from mostly grasses to mostly mosquito shrubs over the last 150 years. How would you classify this beetle in terms of its role in the ecosystem? Explain your answer.
Answers
Answer:
ecosystem engineers
Explanation:
because they changed the desert from mostly grasses to mostly mosquito shrubs over the last 150 years
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We know that for example stem Bromelain has an enzymatic activity of 0.542 U/mg and there are 20 billion bacteria in our teeth. Calculate how long does Bromelain take to degrade all of the biofilm created by the bacteria using this rule : a) Any assumptions must be written as "(Assumption)". Plus point for those who tell me why they choose that assumption b) Any other data gained from other sources must be written specifically. If it is a book, you can just write the title of the book and the page. If it is a source/website/journal, just write the title of it. c) If you write other data without stating that it is assumption or obtained from other sources, I assume that you create data by yourself without knowing anything!!
Answers
Given that Stem Bromelain has an enzymatic activity of 0.542 U/mg, and there are 20 billion bacteria in our teeth. We need to calculate how long it takes to degrade all of the biofilm created by the bacteria.Assumptions and explanations used in the calculation: Assumption: The mass of the biofilm is not given. Therefore, it is assumed that the biofilm's mass is 1 mg, as the enzymatic activity of bromelain is provided per mg. If the biofilm's mass is different, the result will be different.
We know the enzymatic activity of bromelain, which is 0.542 U/mg.We are given that the number of bacteria in our teeth is 20 billion. The biofilm is created by these bacteria. Bromelain is supposed to degrade the biofilm. Therefore, we need to calculate the mass of the biofilm. The mass of the biofilm is assumed to be 1 mg, as the enzymatic activity of bromelain is given per mg.Now we can use the given data to calculate the time required for bromelain to degrade all of the biofilms created by the bacteria.First, we need to find the total enzymatic activity required to degrade the biofilm. The mass of the biofilm is assumed to be 1 mg.Enzymatic activity of bromelain = 0.542 U/mgTotal enzymatic activity required to degrade 1 mg biofilm= 0.542 U/mg × 1 mg= 0.542 UThe total enzymatic activity required to degrade the biofilm created by the 20 billion bacteria is:Total enzymatic activity required= Enzymatic activity per bacteria × Total number of bacteria= 0.542 U/mg × 20 billion= 1.084 × 10^10 UTo find out how long it takes for bromelain to degrade all of the biofilm, we need to know the rate of degradation. The rate of degradation depends on various factors, such as temperature, pH, etc., which are not provided in the question. Therefore, it is impossible to calculate the time required for bromelain to degrade all of the biofilms created by the bacteria without knowing the rate of degradation. Thus, the answer cannot be calculated.
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Marissa is testing a hypothesis through experimentation. She believes that immersing ocean coral in carbonic acid will slow the coral’s growth. Which of these actions will prevent Marissa from introducing confounding variables into her experiment?
Answers
Answer:
The answer choices to this question are:
A) She releases cement particles into a random number of the coral samples.
B) She uses three different types of coral to establish her dependent variables.
C) She treats the coral samples identically with varying levels of carbonic acid.
D) She obtains her coral samples from coral reefs surrounding different continents.
Best Answer is:
A) She releases cement particles into a random number of the coral samples.
Theory:
It has been researched that ocean acidification caused by carbon dioxide emissions causes a decrement in the coral reef growth and this will keep slowing down unless steep and rapid reductions in greenhouse gas emissions are made. And the Coral reefs offered economic opportunities would advantage the surrounding communities from fishing and tourism.
i did this question so thats why i know the answer choices
hope this helpsss
Answer: C. She treats the coral samples identically with varying levels of carbonic acid.
Explanation: I just took the test and this is correct
This is another word for a stage performer, named after the first actor to step out of the chorus and impersonate a character.
Answers
The term that is used for a stage performer who impersonates a character and is named after the first actor to step out of the chorus is called "protagonist.''
A protagonist is the leading character or a main character in a drama, novel, film, or any other fictional text. A protagonist is usually the character that the audience can sympathize with the most, and it's typically the one that faces the greatest obstacles throughout the narrative.
The word "protagonist" comes from the Greek word "protagonistes," which means "first actor." It refers to the actor who plays the lead role in a Greek drama and is the first to step out of the chorus and impersonate a character.
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Two pea plants were cross-pollinated. Both parents have the heterozygous genotype
Bb. What percent of the offspring would have the genotype bb?
A. 25%
B. 0%
C. 50%
D. 100%
Answers
Which event is an example of condensation?
A. A puddle dries when exposed to the Sun.
B. A lake becomes a skating rink in the winter.
C. Fog forms in a valley.
D. A spilled drop of rubbing alcohol disappears.
Answers
Answer:Fog forms in a valley
Explanation:School
when members of one sex compete with each other for access to mates.
Answers
When members of one sex compete with each other for access to mates, it's called intrasexual competition.
Intrasexual competition is the struggle between members of the same sex for access to potential mates of the opposite sex and is a common occurrence in sexually reproducing organisms. Both males and females participate in intrasexual competition, although the extent and the methods used by each sex differ considerably.
How does intrasexual competition work?
Intrasexual competition arises as a result of limited access to mates. In species where one gender is scarce or where males invest more in offspring, it is typically the males who compete intrasexual for females. Female intrasexual competition is more common in species where females are more active in the mating process.
Intrasexual competition has three primary components: contest competition, scramble competition, and sperm competition.
Contest competition is when members of the same sex compete directly for access to mates by battling or displaying.
Scramble competition is when members of the same sex race gain access to resources that are necessary for successful reproduction, such as food or nesting sites.
Sperm competition happens when males compete to fertilize the eggs of a single female.
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How do you use organic method to purify DNA and what is alkali
denaturation?
Answers
Alkali denaturation refers to the process of using alkaline conditions to denature double-stranded DNA. In this method, DNA is treated with a strong alkaline solution, such as sodium hydroxide (NaOH), to break the hydrogen bonds between the two strands of DNA, resulting in single-stranded DNA.
The organic method is a common approach used to purify DNA from biological samples. The general steps involved in the organic method are as follows:
Cell lysis: The biological sample is treated with a lysis buffer to break open the cells and release the DNA.
Protein removal: Proteins are denatured and removed from the DNA using organic solvents such as phenol and chloroform. These solvents separate the DNA from proteins, lipids, and other contaminants.
Precipitation: DNA is precipitated by adding a cold alcohol, typically ethanol or isopropanol. The DNA forms a visible pellet that can be collected by centrifugation.
Washing: The DNA pellet is washed with ethanol to remove residual contaminants
Re-suspension: The purified DNA pellet is dissolved in a suitable buffer, such as TE buffer or distilled water, to make it ready for downstream applications.
Alkali denaturation is often used in DNA sequencing, PCR, and hybridization techniques where single-stranded DNA is required as a starting material.
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What makes an organism fit for its environment is any trait that helps it survive the longest, even if it doesn't reproduce.
Answers
Answer: A cactus has needles to prevent animals from eating the water out from it.
Explanation:
____________ is the process through which blood in the capillary pushes water, waste products, electrolytes, glucose, and other substances through pores in the glomerulus and out into Bowman's capsule.
Answers
Answer:
Filtration
Explanation:
Which phase is being shown in image C?
Answers
Answer:
interphase
Explanation:
How do electronegativity, polarity, and ph all relate and effect each other? I know moderators, you will be reported if you give a link or wasteful answer.
Answers
Answer:Electrons in a polar covalent bond are shifted toward the more electronegative atom; thus, the more electronegative atom is the one with the partial negative charge. The greater the difference in electronegativity, the more polarized the electron distribution and the larger the partial charges of the atoms.
Explanation:
help ..................................................................................................................
Answers
Answer: The answer is Tt, tt, Tt, tt
Explanation: