Cells of budding yeast(saccharomyces cerevisiae) leave the mitotic cell cycle and meiosis when resources are scarce.
48 fg of DNA are present in the yeast cell in G2, and DNA doubles during S phase. The yeast cell in G1 contains 24 fg of DNA, the zygote will have 24 fg of DNA, each cell will have 24 fg of DNA at the end of meiosis I, and each cell will have 12 fg of DNA at the end of meiosis II.
For somatic cells and the asexual reproduction of unicellular eukaryotic cells, mitosis is a type of cell division. The form of cell division known as meiosis is used to produce gametes during sexual reproduction.
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which is true about chromatin? it is composed of single-stranded dna. it is composed of loose strands of dna. it is composed of tightly coiled dna. it is located outside of the nucleus.
The statement that is true about chromatin is that it is composed of loose strands of DNA.
The DNA of eukaryotic cells is arranged differently from that of prokaryotic cells, and the genomes of most eukaryotes are far more complicated than those of prokaryotes. Prokaryotes have only one chromosome, which is typically a circular DNA molecule and contains their whole genome. The genomes of eukaryotes, in contrast, are made up of several chromosomes, each of which contains a linear DNA molecule. All eukaryotes share the same fundamental chromosomal structure, despite the fact that the numbers and sizes of chromosomes vary greatly between different species. Chromatin, the name given to the protein-DNA complexes found in eukaryotic cells, normally has a protein content that is roughly twice that of DNA. The main chromatin proteins are the histones, which are tiny proteins with a high concentration of basic amino acids that make it easier for them to connect to the negatively charged DNA molecule.
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Explain the role of the cell cycle in the production of tissues.
Answer:
the cell cycle allows multicellular organisms to grow and divide a single-celled organism to reproduce
The fundamental function of the cell cycle is to duplicate accurately the vast amount of DNA in the chromosomes and then segregate the copies precisely into two genetically identical daughter cells. The collection of cells gives rise to the synthesis of tissues.
What do you mean by Cell cycle?Cell cycle may be defined as the entire sequence of events happening from the termination of one nuclear division to the beginning of the next. The cell cycle can be divided into two types. They are as follows:
Interphase.M-phase (Division phase).Apart from this, the Cellular division has three main functions. It may include helping in the reproduction of an entire unicellular organism. Helps in the growth and repair of tissues in multicellular animals. Aids in the formation of gametes (eggs and sperm) for sexual reproduction in multicellular animals.
Therefore, the most fundamental function of the cell cycle is to duplicate accurately the vast amount of DNA in the chromosomes and then segregate the copies precisely into two genetically identical daughter cells.
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Identify one factor, besides genetics, that could influence the
development of human offspring.
Answer:
Drugs/alcohol/tobacco
Explanation:
environment
hormones
diseases
Drugs ,alcohol and tobacco could influence the development of human offspring apart from genetics.
How does alcohol and smoking affect fertility?
Alcohol consumption resulted in significant increases in morphologically abnormal nuclei and plasma membranes. Heavy smoking was associated with decreased sperm counts and alcohol consumption was associated with increased numbers of morphologically abnormal sperm.
What are the effects of drugs alcohol and tobacco on an unborn baby?
The effect could be premature birth, low birth weight, miscarriage and cot death. Breathing problems and wheezing in the first six months of life.
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Determining enzyme activity Enzyme activity can be determined in the following ways: Check All That Apply O by measuring how much of the enzyme is consumed O by measuring how much of the substrate is consumed acesO by measuring how much of the product is produced O determining when the amount of substrate is equal to the amount of productO by measuring the ratio of enzyme to substrate concentration
Enzyme activity can be determined (b) by measuring how much of the substrate is consumed aces and (c) by measuring how much of the product is produced O determining when the amount of substrate is equal to the amount of product.
Usually, the purpose of cultivating bugs in a plant is to increase enzyme activity. A biological catalyst is an enzyme. They decrease activation energy, just like other catalysts, enabling processes to go in the desired direction.
They are often sensitive to the temperature, pH, and salt content of the environment they function in since their action depends on the folding of a protein. There are few exceptions to this rule, such as the enzymes used in washing powder, but generally speaking, activity may be reduced (reversibly) when slight departures from their tolerance limits occur.
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The diagram shows a quadrat containing some plants, some of which have flowers. How many flowering plants would you expect to find in a garden measuring 10m × 15m?
To estimate the number of flowering plants in a 10m × 15m garden, you'll first need to determine the area of the quadrat and count the number of flowering plants within it. Quadrat sampling is a common method used in ecology to estimate the abundance or density of organisms in a given area.
The basic idea is to randomly place a quadrat (a square or rectangular frame of known size) on the ground and count the number of individuals of interest that are found within the quadrat.
This count is then used to estimate the total number of individuals in the larger area based on the assumption that the density of organisms is relatively uniform across the area being sampled.
Next, calculate the area of the garden and divide it by the quadrat's area. Finally, multiply the number of flowering plants in the quadrat by this ratio to estimate the total number of flowering plants in the garden.
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What will be the end product(s) of the following dehydration synthesis reaction?
Answer:
C24H44O22 + 2H2O
Explanation:
i’m guessing
fill in the blank. to cause cancer, proto-oncogenes require 1 (or) 2 allele(s) to be mutated and are therefore considered dominant (or) recessive. this results in___of function.
To cause cancer, proto-oncogenes require 1 allele to be mutated and are therefore considered dominant. This results in the gain of function.
Proto-oncogenes are genes that regulate cell growth and division. When they are mutated, they can become oncogenes, which can cause cells to grow and divide uncontrollably, leading to the development of cancer. Because only one allele needs to be mutated for this to occur, proto-oncogenes are considered dominant. This mutation results in the gain of function, meaning that the mutated gene is more active or has a new function that contributes to the development of cancer.
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Which of these is the direct result of an error in the transcription of a DNA nucleotide
Amino acids do not bond to tRNA.
The nuclear membrane is ruptured.
A codon sequence is incorrect.
Transportation of mRNA does not occur.
The direct result of an error in the transcription of a DNA nucleotide is that a codon sequence will be incorrect. So the correct option is C.
What is transcription?The first step in the expression of a genetic code is called transcription. During gene expression, the information stored in the DNA is expressed in the form of proteins.
In transcription, DNA is utilized to produce RNA. The RNA molecule is the copy of the DNA's genetic sequence. The RNA copy produced by the process of transcription is called an RNA transcript.
This transcript has the required information for the construction of a polypeptide chain. But before the formation of proteins, a eukaryotic RNA transcript requires processing to be converted into mRNA.
The mRNA thus produced has codons for the formation of proteins. Each amino acid is a result of the translation of three codons.
Therefore, if there is an error in the transcription of DNA nucleotides, the codon sequence will be incorrect. The correct option is C.
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What are some ways that natural selection equips organisms for survival in their environment?
Answer:
Well organisms who have traits that are beneficial to them and would make them live long enough to usually reproduce, it would become an adaptive trait. That organism who has that trait will most likely live the longest and reproducing which will pass down their traits. Other same type of organisms who don’t have that trait will most likely die quicker then those who do and they won’t be able to pass on their genes which will lead to the natrual selection being very few of those types. If your born with a non useful trait, you jsut pass it down, you can’t just have the ones that benefit you unless yoru parents have it. This is why at the ”end” there will be more with useful traits and barley any with non.
The feeding mode that is most associated with a fermenter (e.g. goat, rabbit, catfish) is?
The feeding mode that is most associated with a fermenter (e.g. goat, rabbit, catfish) is association with symbiotic microbes.
Symbiotic microbes- Symbiotic bacteria are those that coexist in harmony with one another or with other organisms. Rhizobia, for instance, are responsible for nitrogen fixation in the roots of legumes.
Nitrogen Fixation- The soil is home to a large number of heterotrophic bacteria, which fix large amounts of nitrogen without coming into close contact with other living things. Azotobacter, Bacillus, Clostridium, and Klebsiella species are a few examples of this type of nitrogen-fixing bacteria.
The enhanced nitrogen level in the soil benefits both crops used in the intercropping method.
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I'LL GIVE YOU BRAINLIEST!!Which is the best definition of air pressure? *
1 point
the weight of the air pressing on everything in the environment
the amount of precipitation in a certain area
the type of clouds in the atmosphere
the amount of water vapor in the air
it's the weight of the air pressing on everything in the environment
in bronfenbrenner's ecological model of development, what is the difference between the mesosystem and the exosystem? in your answer, give socioeconomic examples of both systems.
The ecological systems theory of Bronfenbrenner views a child's development as a complex system of interactions that are impacted by a variety of environmental influences, ranging from the child's immediate home and school contexts to more general societal values, laws, and practices.
The mesosystem includes the interactions that take place between the child's microsystems, such as those between parents and teachers or between classmates and siblings.For instance, interaction between a kid's parents and teachers may affect the development of the youngster.The exosystem is a part of Urie Bronfenbrenner's ecological systems theory, which he created in the 1970s. It also includes additional formal and informal social structures that don't directly contain children but have an impact on one of the microsystems in a negative way.Exosystems include areas including neighborhoods, parent's workplaces, parent's friends, and the media. These are circumstances that don't include the child and aren't part of their everyday lives, but they nonetheless have an effect on them. A workplace incident may cause the parent to become irritable with the kid when they get home, which might stunt the child's development.Learn more about the bronfenbrenner's ecological model with the help of the given link:
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decomposer(s)
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From the image, there is a cycling of nutrients and minerals throughout the ecosystem as shown.
What is the ecosystem?
An ecosystem is a complex network of living organisms, their interactions with each other, and their physical environment. It encompasses all the biotic (living) and abiotic (non-living) components of a particular environment and the interactions among them.
The water and the air are important in the photosynthesis of the plant. The cricket feeds on the plant and the toad feeds on the cricket. When the cricket dies, the bacteria see to its decomposition(decomposers) and return the inorganic nutrients to the soil to be used by the plants.
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A benefit of moderate physical activity is the reduction in risk of hypokinetic disease and early death.
An individual with sedentary lifestyle might be at risk for hypokinetic diseases such as high blood pressure. Moderate physical activity such as walking and biking gives a great benefit to avoid such risk. Moderate physical activity can reduce major medical conditions that might lead to early death. Too little movement or activity might lead to hypokinetic diseases. Regardless of the intensity of the physical activity, it will lower the risk of an early death due to hypokinetic diseases.
The physical expression of organism's genetic constitution is called the:____.
a. phenotype
b. karyotype
c. genotype
d. stereotype
All eukaryotic cells have a.
a covering called a membrane that surrounds the cell and controls what information and materials enter and leave it.
b. an internal fluid that gives shape to the cell and supports the other things within it.
c. a central zone or nucleus that contains the cell’s genes.
d. All of the above
Answer:
All eukaryotic cells have a membrane that covers them, internal fluid and a central nucleus, so the correct answer is option d (All of the above).
Explanation:
Eukaryotic cells are those that possess a plasma membrane that surrounds them, acting as a semi-permeable membrane to the passage of substances, in addition to possessing the capacity to receive external signals.
The cytoplasmic membrane of eukaryotic cells is related to an endomembrane system, associated to cytoplasmic organelles and to the central nucleus, which stores genetic information, in the form of DNA.
The eukaryotic cell cytoplasm is fluid and serves as a support for the organelles, as well as all the chemicals suspended in it.
The existence of true nucleus and organelles is what defines a eukaryotic cell and differentiates them from prokaryotic cells.
the discovery of microbes as discrete entities sharing many of the characteristics of larger plants and animals was made possible by the .
The discovery of microbes as discrete entities sharing many of the characteristics of larger plants and animals was made possible by the development of microscope.
What is a Microscope?This is referred to an instrument which is commonly used in the laboratory to examine objects that are too small to be seen by the na-ked eyes. It does this by the process of enlargement of the objects and it brought about new discoveries about plants and animals.
It made the organelles present in cells to be more visible and their similarities and differences were noted which were also compared to that of microbes so as to find out their common ancestry.
This is therefore the reason why discovery of microbes as discrete entities sharing many of the characteristics of larger plants and animals was made possible by the instrument.
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what is the principle that different body systems grow at different rates?
The principle that different body systems grow at different rates is known as differential growth.
This principle means that different parts of the body will grow at different rates, depending on the demands placed on them. For example, the nervous system develops more rapidly than the skeletal system because the brain needs to be functional in order for the body to perform basic functions such as breathing, swallowing, and maintaining body temperature.
Similarly, the reproductive system doesn't begin to develop until puberty because it isn't needed for survival until that point. Additionally, the cardiovascular system grows at a faster rate than other systems in the body because it needs to supply oxygen and nutrients to all other systems in the body.
Overall, the principle of differential growth helps to ensure that the body develops in a coordinated and efficient manner, allowing for optimal function and survival.
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When biologists talk about natural selection, they are referring to the process by which environmental conditions favor organisms with specific traits that make them more likely to survive and produce offspring.
True
False
The correct answer is True.
During translation, which molecule bears the codon? -the anticodon? the peptidyl transferase? the A site? What is the difference between the A site and P site?
During translation, the molecule that bears the codon is mRNA (messenger RNA), while the molecule bearing the anticodon is tRNA (transfer RNA). Peptidyl transferase is an enzyme that plays a crucial role in forming peptide bonds between amino acids during protein synthesis. The main difference between the A and P sites is their function during translation.
The A site (aminoacyl-tRNA site) and the P site (peptidyl-tRNA site) are two adjacent sites in the ribosome, which is the molecular machine that carries out translation.
The A site is where the incoming aminoacyl-tRNA, carrying the next amino acid to be added to the growing polypeptide chain, binds to the ribosome. The anticodon of the tRNA base pairs with the codon on the mRNA, ensuring that the correct amino acid is added to the chain. Once the tRNA is in the A site, the peptidyl transferase catalyzes the formation of a peptide bond between the amino acid in the A site and the polypeptide chain in the P site.
The P site holds the tRNA carrying the growing polypeptide chain. After the peptide bond formation, the tRNA in the P site, now without its amino acid, is transferred to the E site (exit site) and released from the ribosome. The ribosome then moves along the mRNA, shifting the tRNA with the polypeptide chain from the A site to the P site, making room for the next aminoacyl-tRNA to enter the A site.
In summary, the A site is where the new aminoacyl-tRNA binds, while the P site holds the tRNA with the growing polypeptide chain during translation.
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is amoeba a matter¿, if it is, which state of matter do we classify it
If an essential amino acid were not present in the person's diet, could all proteins be made?
What is it called when a organism has two identical alleles?
Answer:
Try homozygous genotype
If it is wrong, I do apologize.
good movie recommends? My teacher said I get to choose the movie for today
Answer:
titanic you teacher will think you are very mature or you gold do something like hobbs and shaw really good or you could watch endgame lol
Explanation:
Answer:
Explanation:
Instant family or playing with fire are both Carey amazing movies
Does anyone know the answer
Answer:
rock
Explanation:
i could be wrong but my best answer is rock
Which mesentery helps tether the stomach to the liver? A) pylorus. B) lesser omentum. C) greater omentum. D) fundus
The mesentery that helps tether the stomach to the liver is the lesser omentum. The answer is B)
The lesser omentum is a double-layered fold of peritoneum that connects the lesser curvature of the stomach to the liver. It forms a protective covering for the structures within the lesser sac of the peritoneal cavity.
The lesser omentum consists of two parts: the hepatogastric ligament and the hepatoduodenal ligament. The hepatogastric ligament extends from the lesser curvature of the stomach to the liver, while the hepatoduodenal ligament connects the liver to the duodenum.
These ligaments provide support and maintain the position of the stomach relative to the liver.
Hence, the correct option is: B) lesser omentum.
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Water is a(n)__molecule because it has a positive end and a negative
end (like a magnet).
Answer:
Water is a polar molecule
how did you get this answer i don't get it
What question?- there's nothing there
A biomedical researcher measured the diastolic blood pressure of 30 patients, from each person's right and left arms. To estimate the average population difference in diastolic blood pressure between the left and right arms, the correct confidence interval to compute is: A confidence interval for the odds ratio. A one-sample confidence interval for a proportion. A one-sample confidence interval for the mean. A confidence interval for the mean difference. A research study asked the research question: Do adults who live alone and without a pet dog watch less television, on average, than adults who live alone but with a pet dog? The researchers recorded the number of minutes of television watched per day by 65 adults with a pet dog, and by 77 adults without a pet dog. The best graph for displaying the relationship between the minutes of television watched per day and whether or not the person owns a dog would be: A barchart. A stem-and-leaf plot. A boxplot. A scatterplot. A histogram. A study (in the British Medical Journal) recorded: - whether people kept birds or not, and - whether the subjects had lung cancer (the cases) and or did not have lung cancer (the controls) as follows: What is the value of
p
^
, the sample proportion of lung cancer patients who kept pet birds? 15%. We do not know. 41%. 70%. 97\%. A 2005 study in the International Journal of Sport Nutrition and Exercise Metabolism found that 10 of a sample of 41 female runners with non-stress fractures were vegetarians. The approximate 95% confidence interval for the population proportion of female runners with non-stress fractures who are vegetarians is: 0.24 give or take about 0.25. 0.24 give-or-take about 0.27 0.24 give-or-take about 0.068 0.24 give-or-take about 0.13. 0.24 give-or-take about 0.41. A study measured the number of people at a busy supermarket who used the stairs or the elevator. To estimate the population proportion of people who use the stairs to within 0.03 of the true value (with 95% confidence), an estimate of the sample size would be at least: 44. None of the other answers are correct. 33. 1112 . 1111. A 2012 study conducted for ALDI stores found that the mean time taken for 1.5 volt Energizer Max batteries to reach 1 volt was 7.36 hours with a standard deviation of 0.29 hours from their sample of size 9. Based on this sample, an approximate 95% confidence interval for the population mean time taken by Energizer Max batteries to reach 1.0 volts is None of the other answers are correct. From 6.78 to 7.94 hours. From 7.26 to 7.46 hours. From 7.17 to 7.55 hours. From 7.07 to 7.65 hours. A study of a freight train derailment led to a statistical comparison of cone penetration for two different bearings in a sample of 17 traction motors (the study appeared in Lubrication Engineering). The mean difference in penetration is 0.42 mm (the mean pinion bearing cone penétration was greater than the mean commutator armature cone penetration) with a standard deviation of the differences of 3.59 mm. The standard error of the sample mean difference is We have insufficient information to find the standard error of the sample mean 0.42 mm. 0.87 mm 3.59 mm. A researcher wanted to compare the mean strength of concrete cylinders made using two different concrete additives. The analysis produced a 95\% confidence interval from 32 to 36 in favour of additive A. What would the researchers conclude? The sample mean difference is likely to be between 32 and 36 greater for additive A. The population mean difference is likely to be between 32 and 36 greater for additive A. Additive A is definitely better than additive B for increasing concrete strength in the population. Which one of these is a disadvantage of using a large sample? Select all correct answers. Larger samples cost more and take longer. Unnecessarily large samples may be unethical. Larger samples have poor internal validity. Random samples are harder to find for larger samples.
1. The correct confidence interval to compute is: A confidence interval for the mean difference.
2. The best graph for displaying the relationship between the minutes of television watched per day and whether or not the person owns a dog would be: A boxplot.
3. The value of p^, the sample proportion of lung cancer patients who kept pet birds is: We do not know.
4. The approximate 95% confidence interval for the population proportion of female runners with non-stress fractures who are vegetarians is: 0.24 give-or-take about 0.13.
5. An estimate of the sample size needed to estimate the population proportion of people who use the stairs to within 0.03 of the true value (with 95% confidence) would be at least: 1112.
6. An approximate 95% confidence interval for the population mean time taken by Energizer Max batteries to reach 1.0 volts based on the given sample is: From 6.78 to 7.94 hours.
7. The standard error of the sample mean difference is: 0.87 mm.
8. The researchers would conclude that: The population mean difference is likely to be between 32 and 36 greater for additive A.
9. Disadvantages of using a large sample include: Larger samples cost more and take longer. Unnecessarily large samples may be unethical.
1. Since the researcher measured the diastolic blood pressure of patients from both their right and left arms, the goal is to estimate the average population difference in diastolic blood pressure between the left and right arms.
2. A boxplot is suitable for displaying the relationship between a categorical variable (owning a pet dog or not) and a continuous variable (minutes of television watched per day).
3. The value of p^, the sample proportion of lung cancer patients who kept pet birds, is not provided in the question. Without the specific data from the study, we cannot determine the value of p^.
4. The approximate 95% confidence interval for a population proportion is calculated using the sample proportion, sample size, and the appropriate formula. Since the question doesn't provide the sample proportion or sample size, we cannot determine the confidence interval.
5. The formula for estimating the sample size needed to estimate a population proportion is n = (Z^2 * p * (1-p)) / E^2, where Z is the Z-score corresponding to the desired confidence level, p is the estimated proportion, and E is the desired margin of error.
6. An approximate 95% confidence interval for the population mean is calculated using the sample mean, sample standard deviation, and the appropriate formula. Based on the given sample mean of 7.36 hours and a standard deviation of 0.29 hours, the confidence interval can be calculated.
7. The standard error of the sample mean difference can be calculated using the formula: standard deviation of differences / square root of the sample size. In this case, the standard deviation of the differences is given as 3.59 mm, and since the sample size is not provided, we cannot calculate the exact standard error.
8. The 95% confidence interval from 32 to 36 suggests that the true population mean difference in concrete strength between the two additives (A and B) is likely to be between 32 and 36 in favor of additive A.
9. When using a large sample, there are some disadvantages to consider. Firstly, larger samples require more resources, such as time, money, and manpower, for data collection and analysis. This can increase the overall cost and duration of the study.
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what is the convection pattern between the 30s and 30n latitude (1 point)
The surface air flows toward the Equator in 30° North and 30° South latitude.
Direction of convection pattern?In the zone between about 30° North. and 30° South, the surface air flows toward the Equator and then flow towards polar region. Prevailing Westerlies are located in the 30 to 60 degrees latitude in the northern and southern hemispheres. They blow from west to east direction so we can conclude that the surface air flows toward the Equator in 30° North and 30° South latitude.
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