Does DNA replication begin at one end and proceeds to the other? (Yes or No question)
Answers
Answer:The correct answer is No
Explanation:
Related Questions
What is the difference between a catabolic pathway and an anabolic pathway?.
Answers
Answer: Anabolic pathway: small molecules are assembled into larger ones. Energy is typically required. Catabolic pathway: large molecules are broken down into small ones. Energy is typically released.
Which of the following is evidence of evolution?
-Fossil record
-DNA analysis
-Comparative Anatomy
-All of the above
Answers
Immediately after a forest fire, the primary consumers in the area will compete most for which biotic factor?
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In a freshly burnt forest, primary consumers will compete for forages with themselves.
Primary consumers are organisms that feed on producers.
When a forest is lost to fire, most of the plants (the producers) are lost.
Thus, primary consumers will compete heavily for the few plants that are left among themselves.
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In a freshly burnt forest, primary consumers will compete for forages with themselves.
Who are Primary consumers?
Primary consumers are herbivores, feeding on plants.Caterpillars, insects are examples of primary consumers because they only eat autotrophs (plants). Primary consumers are organisms that feed on producers.When a forest is lost to fire, most of the plants (the producers) are lost. A major energy pathway is eradicated, reducing system productivity and shifting importance to energy supplied by primary producers.
Thus, primary consumers will compete heavily for the few plants that are left among themselves.
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Which of the following are components of the conducting portion of the respiratory system? a) Alveoli b) Bronchioles c) Larynx d) Trachea
Answers
Answer:
Explanation:
The components of the conducting portion of the respiratory system are Bronchioles, Larynx, and Trachea.
b,c and d are the correct options.
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The conducting portion of the respiratory system includes the trachea, bronchi, bronchioles, and larynx.
These structures are responsible for conducting air into and out of the lungs. The trachea is a flexible tube that connects the larynx to the bronchi and is supported by cartilage rings. The bronchi branch off from the trachea and continue to divide into smaller bronchioles, which eventually lead to the alveoli. The larynx is located at the top of the trachea and contains the vocal cords.
While the alveoli are part of the respiratory system, they are not considered part of the conducting portion because they are responsible for gas exchange, not air transport. In summary, the components of the conducting portion of the respiratory system are the trachea, bronchi, bronchioles, and larynx.
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If the anticodon of a molecule of tRNA has the sequence GAU, what was the original DNA sequence?
Answers
Answer:it’s not CUA
Explanation:
in the previous video, we worked under the hypothesis that the condition is autosomal dominant. if it is a common condition, which other modes of inheritance are possible based on this pedigree? (assume the trait is fully penetrant.)
Answers
Based on the assumption that the condition is autosomal dominant and fully penetrant, if it is a common condition, there are a few other modes of inheritance that are possible based on this pedigree. Let's explore them:
1. Autosomal recessive: In this mode of inheritance, both parents must carry a recessive gene for the condition, and the affected individual inherits one copy from each parent. If the condition is common, it is possible that both parents are carriers, leading to affected offspring. For example, if two carriers (Aa) have a child, there is a 25% chance of the child being affected (aa).
2. X-linked dominant: This mode of inheritance occurs when the gene responsible for the condition is located on the X chromosome. If the condition is common, it is possible that affected individuals have an affected parent. In this case, all daughters of an affected father would be affected, while sons do not inherit the trait from their fathers.
3. X-linked recessive: Similar to X-linked dominant inheritance, this mode of inheritance also involves the X chromosome. If the condition is common, affected individuals can have unaffected parents. In this case, males are more commonly affected because they inherit the X chromosome from their mothers. For example, if an unaffected mother is a carrier (XaXa) and the father is unaffected (XY), there is a 50% chance of an affected son (XaY).
These are just a few possible modes of inheritance that could occur if the condition is common. It is important to note that the actual mode of inheritance can vary depending on the specific condition being studied. Remember to always consider additional factors and gather more information to accurately determine the mode of inheritance.
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Using the information in the table about people visiting the mountains and Tibetans living at high elevations,
construct an explanation for why, over many generations, the people of Tibet today are physiologically
different from people living at lower elevations.
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In 2010, it was discovered that Tibetans possess many genes that enable them to utilise oxygen more effectively and transport enough of it to their limbs while exercising at high altitudes.
What two adaptations to living at a high altitude have the inhabitants of Tibet made?In comparison to lowlanders, Tibetans have larger lungs, higher lung function, and greater lung diffusing capacity. Additionally, they react to hypoxia and hypercapnia more quickly. The blood haemoglobin levels of Tibetans are lower than those of lowlanders or Andeans living at a same height.
What caused the Tibetans to change?The genes of 50 Tibetans and 40 Han Chinese were compared to demonstrate that the ethnic Tibetans diverged from the Han fewer than 3,000 years ago, and that they have since rapidly evolved a special capacity to flourish at high altitudes and low oxygen levels.
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Which one is it ?’ 2, 3, 4, 5?
Answers
Explanation:the number means how many atoms it has
16. In which of the following situations are the phenotypes of F2 offspring expected to follow
the ratio of 9:3:3:1?
a. monohybrid cross for two unlinked traits
b. a monohybrid cross for two closely linked traits
c. a dihybrid cross for two unlinked traits
d. a dihybrid cross for two closely linked traits
Answers
Answer:
C
Explanation:
The F2 offspring of a cross would follow the ratio of 9:3:3:1 only if the cross is a dihybrid for two unlinked traits.
There is nothing like a monohybrid cross for two traits. A cross involving two traits is a dihybrid cross. Hence, options a and b are out of the equation.
A dihybrid cross for two closely linked traits would produce F2 offspring in another ratio that is different from 9:3:3:1 depending on the linkage map.
Hence, the correct option is C.
mention three benefits of being able to effectively communicate with your teachers
Answers
Answer:
1. if you are struggling with a concept/assignment/etc. you can easily get help
2. If you have a religious belief/IED/etc to not be able to do an assignment you can easily find ways to work around this and find alternative assignments
3. being able to communicate with a teacher if you have a 504 plan can be helpful as the teacher may need to know something about the reason for the 504 plan to better help you
Interactions between organisms and their environment impact the organism’s overall population. The jaguar Panthera onca is the largest cat in North America. It is found in areas across the Southwest, including Arizona, New Mexico, and Texas. It is a carnivore that has powerful jaws and sharp teeth and preys on fish, turtles, and many smaller mammals. Which shows the relationship between the jaguar and turtles?
adaptation principle
competitive exclusion principle
niche principle
predator-prey relationship
Answers
Answer:
D.) Predator-prey relationship
Explanation:
EDGE Test
The relationship shown between the jaguar and turtles is a predator-prey relationship.
What do you mean by Environment?An environment may be defined as anything which is present in our surroundings through which we interact and performs metabolic activities.
The jaguar Panthera is a carnivore that has powerful jaws and sharp teeth and preys on turtles. It indicates that the jaguar is a predator that hunts or kills turtles for the purpose of food.
Therefore, the relationship shown between the jaguar and turtles is a predator-prey relationship.
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Explain how your model demonstrated energy transformation from thermal energy to mechanical energy during a volcanic eruption.
(I mixed warm water, vinegar, and baking soda)
Answers
Answer:
Well to begin with, the thermal energy is mostly provided by the energy contained in warm water, when mixed with the other two components the chemical units are modified to form a composite solution that will result in an energy release, this energy release generate a movement, which in this case is the eruptive movement simulating the eruption of a volcano.
Explanation:
By mixing the vinegar (which is an acid) with the baking soda (which is a base), they react and transform into water, sodium acetate (a salt), and carbon dioxide (a gas). Carbon dioxide (CO2) is the gas that causes bubbles to form from the eruption of the volcano and balloons to swell.
Respond with at least 120 words.
Find a scientific or news article that provides examples of
selective breeding and let us know why you chose it.
Answers
I have chosen an article titled "Selective Breeding in Livestock: Advantages, Limitations, and Applications" published in the journal Frontiers in Genetics.
The article "Selective Breeding in Livestock: Advantages, Limitations, and Applications" offers a valuable exploration of selective breeding practices in livestock. It discusses the advantages of selective breeding, such as the improvement of desirable traits, increased productivity, and disease resistance. The article also addresses the limitations and challenges associated with selective breeding, including reduced genetic diversity and potential negative effects on animal welfare in GMO technologies. Moreover, the article presents various real-world examples of selective breeding in livestock, ranging from dairy cattle and poultry to pigs and sheep. These examples highlight the practical applications of selective breeding techniques in achieving specific breeding goals and meeting the demands of the livestock industry.
I chose this article because it provides a comprehensive and scientifically grounded examination of selective breeding in the context of livestock. It offers a balanced view by discussing both the benefits and limitations of this practice. Additionally, the inclusion of real-world examples adds practical relevance to the topic. Overall, this article serves as a reliable and informative resource for understanding the concepts and applications of selective breeding in livestock.
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Are data that do not support a hypothesis useful?
A. No, because the data must be inaccurate
B. No, because the data show that the experiment failed
C. Yes, because the data prove that the experiment was designed
poorly
D. Yes, because the data provide useful information that can lead to
more testing
Answers
Answer:
D
really dude, just read these types of questions the one that's really different is usually right
which of the following protists is not authotrophic?
amoeba
brown algae
dinoflagellates
euglena
Answers
cephadrine is one of many antibiotics that act by inhibiting bacterial cell wall synthesis. if a typical daily disage is 660 mg, how many milliliters of 75 mg/ml suspension of cephadrine should be adminstered daily
Answers
The dosage for Cephadrine should be given to patients as per their weight and health condition. Cephadrine is one of the antibiotics that inhibits bacterial cell wall synthesis.
Cephadrine is an antibiotic that is used to treat bacterial infections. It functions by inhibiting the bacteria's cell wall synthesis. Cephadrine can also be used to treat skin, bone, and soft tissue infections. Cephadrine belongs to the cephalosporin class of antibiotics.The daily dosage for Cephadrine is typically 660 mg. If the drug comes in the form of a 75 mg/ml suspension. Given that, Cephadrine suspension has 75 mg/ml of the drug. The daily dosage is 660 mg.To determine how many milliliters of Cephadrine suspension should be administered daily
Convert 660 mg to ml by dividing 660 mg by 75 mg/ml.660mg ÷ 75 mg/ml = 8.8 ml (approx)Therefore, 8.8 ml.Cephadrine suspension should be administered daily.
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the primary reason steroid hormones usually act slowly is that . the primary reason steroid hormones usually act slowly is that . they are produced at very low concentrations acting via a signal transduction pathway makes for slower responses than does directly interacting with a cell's dna they are too large to enter a cell and therefore must first bind to a plasma membrane receptor before having an effect on a cell target cells tend to ignore steroid hormones in favor of nonsteroid hormones they turn genes on or off and it takes time for gene products to build up or become depleted
Answers
Primary reason steroid hormones usually act slowly is that e. they turn genes on or off and it takes time for gene products to build up or become depleted.
Primary reason why steroid hormones usually act slowly is that they turn genes on or off and it takes time for gene products to build up or become depleted. The receptors for steroid hormones tend to be cytoplasmic proteins that also serve as transcription factors which also requires them to enter the nucleus.
Steroids can also act very quickly, by binding to cell surface receptors, or slowly, by binding to cytoplasmic or nucleic receptors and ultimately activate gene transcription.
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when completing a punnett square for a monohybrid cross, there are four possible offspring. how many possible offspring are possible when completing a punnett square for a dihybrid cross?
Answers
In a dihybrid cross, there are 16 possible offspring genotypes.
A dihybrid cross involves two traits with two alleles each, resulting in four possible allele combinations for each parent. When completing a Punnett square for a dihybrid cross, you create a 4x4 grid, giving you 16 boxes. Each box represents a possible offspring genotype, so there are 16 possible offspring genotypes in a dihybrid cross. This method helps to predict the inheritance patterns of two traits simultaneously and demonstrates the principle of independent assortment, which states that the inheritance of one trait does not influence the inheritance of another trait.
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an international body of anatomists convened in 1998 to standardize anatomical terminology. the result was a book known as the ______, which accepts both latin and common english equivalents.
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The result was a book known as the Terminologia Anatomica, which accepts both Latin and common English equivalents.
Terminologia Anatomica is a book that contains widely internationally accepted terminology for human gross and/or topographical anatomy both in Latin and English.Terminologia Anatomica was jointly produced by the Federative Committee on Anatomical Terminology and the International Federation of Associations of Anatomists.This book represents the international standard of human anatomic terminology.Terminologia Anatomica divides anatomical structures into different parts which include, among others: General anatomy (anatomia generalis), Joints (juncturae), Bones (ossa), Muscles (musculi), Digestive system (systema digestorium), etc.Learn more in:
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Which of the following statements are true about mutations??
1-Mutations are random
2-Mutations are mostly beneficial
3-Mutations can occur in both DNA and RNA
for an organism
4-Mutations can only occur during interphase.
5-Not all DNA codes for proteins
6-Not all genes are turned on or activated
7-Substitution mutations typically result in frameshift
8-Mutations can be genetically inherited
Help!
*I think it is 1-2-4-5-7-8
Answers
Mutations can happen in every stage of a cell cycle. Also most DNAs code for functional RNA not proteins. And only some mutations are beneficial not Mostly. Pay attention on the fact that in one cell we have complete set of genes but only a few of them express ( activated)
Mutations are mostly random, Mutations may be found in DNA and RNA, Not all the DNA codes for the proteins, some genes are turned on or activated, Substitution mutations typically result in a frame-shift, They can be genetically inherited.
A mutation is an alteration in the genome of the organisms and may be formed in the RNA or the DNA. These can result from the changes in the genetic make up of the genes. They may also prevent the genes from functioning. Mutation is a process that involves the duplication in DNA through the genetic recombination. A type of genetic engineering.Hence these mutations are random, occurring both in DNA and RNA. Leading to changes in genetic codes and not all genes are activated. Some are inherited. Thus the correct statements are 1, 3, 5, 6, 7, 8.
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Use the periodic table to complete this equation that represents nuclear fission processes.
233U+'n Ba+ C+3 'n
130
56
92
A:
B:
C
Answers
Answer:
the answer is
A: 94
B: 36
C: Kr
The process of nuclear fission will always produce daughter nuclei and more neutrons in the process.
What is nuclear fission?The term nuclear fission has to do with the process in which the nucleus of an atom is bombarded with a particle which makes it to breakup thereby releasing energy in the process.
The question is incomplete as the equation is not clear however, the process of nuclear fission will always produce daughter nuclei and more neutrons in the process. A has the value of 94. B is the element krypton with atomic number 36.
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a temporary organ formed from both fetal and maternal tissues that provides nutrients and oxygen to the developing fetus, carries away fetal metabolic wastes, and produces the hormones of pregnancy is the:
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This organ is called placenta. It forms from both fetal and maternal tissues. It plays different roles during the entire gestation period. It produces certain hormones and also is a part of the neuro-endocrine mechanism. It is very important for the entire pregnancy process.
What are the functions of the human placenta?
Immunological, barrier, endocrine, respiratory, excretory, nutritive, and nutritional functions.Simple diffusion (respiratory) provides oxygen and produces CO2 while the umbilical cord delivers nutrients to the fetus (nutritive).removing waste materials including urea, creatinine, and uric acid from the fetus (excretory).releasing dietary ingredients and necessary products into the maternal and fetal blood circulations through metabolism.xenobiotic protection for the fetus (compounds including food additives, drugs, and environmental pollutants).producing steroid and peptide hormones that support the development and growth of the fetus (endocrine).protecting the developing child from bacterial infections and maternal illnesses.All hazardous chemicals less than 500 dalton are protected from transmission by the fetal membrane with the exception of antibodies and antigens (barrier).produces several enzymes, such as oxytocinase and diamine oxidase (enzymatic).To know more about the placenta visit:
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HELP!!!!! which is a plant tissue???
Answers
i think phloem is the plant tissue along with xylem♀️
Can light cause changes metal
Answers
Answer:yes
Explanation:Cause metal to be semi conductor
Answer:
yesssssssss!!!!!
Explanation:
What is the difference between growth and development in a multicellular organism.
Answers
The two concepts "growth" and "development" that have probably given us the most trouble over our academic careers are these.
Growth is the simple definition of "an increase in size and mass of a specific organism over time," whereas "development" covers a wider range of topics. The definition of "development" is "the process through which a particular organism changes from a lone cell to a more complex multicellular creature."While development can include an organism's structures, functions, capacities, etc., growth just considers how big or enormous an organism is. The biomass can be used to gauge growth. Cell differentiation is a necessary component of development. These cells can become highly specialized and perform their respective activities throughout time. Every living thing is in a different stage of growth.Learn more about the Growth and development with the help of the given link:
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What type of blastula does an urchin have?
Answers
An urchin is a type of echinoderm and as such, its blastula is formed through a process known as radial cleavage.
This means that the cells divide in a pattern that is perpendicular to the polar axis of the embryo, resulting in a blastula that is spherical and hollow with a single layer of cells known as the blastoderm. The blastula is an important developmental stage for the urchin embryo as it prepares it for further development into a gastrula, where it will begin to form the three primary germ layers of the embryo. The blastula stage is also where the embryo undergoes compaction, which is a process that helps to establish the polarity of the developing embryo. Overall, the blastula stage is critical for the development of the urchin embryo and sets the stage for further differentiation and specialization of cells as the embryo continues to grow and develop.
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what are cnidarian stingers are called?
Answers
The specialised cells known as "stinging cells," or cnidocytes, are present in cnidarians and have nematocysts as their organelles (stingers).
Phylum Cnidaria are animals that have radial or biradial symmetry and are diploblastic, meaning they develop from two embryonic layers. The majority of cnidarian species are marine-based (more than 99%).
These cells, which are located near the mouth and tentacles, contain toxins that may render animals unconscious. Barbs may be embedded in the nematocysts' coiling threads. On the exterior of the cell, there are touch-sensitive cnidocils that resemble hairlike projections. When touched, the cells have been seen to emit coils of thread that can either capture or penetrate the flesh of cnidarian prey or predators.
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the organ that exchanges molecules between fetal and maternal blood is the
Answers
The organ that exchanges molecules between fetal and maternal blood is the placenta.
The placenta is an organ that creates during pregnancy to offer oxygen and nourishment to the developing fetus while removing waste products from the baby's blood. This organ attaches to the wall of the uterus and is connected to the fetus through the umbilical cord. The exchange of molecules between fetal and maternal blood is carried out by the placenta
The placenta is an organ that develops in the uterus during pregnancy. This structure provides oxygen and nutrients to a growing baby. It also removes waste products from the baby's blood. The placenta attaches to the wall of the uterus, and the baby's umbilical cord arises from it.
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How is meiosis related to mutations *?
Answers
Meiosis is a process of cell division that occurs in sexually reproducing organisms. It results in the production of four haploid daughter cells, each containing half the number of chromosomes as the parent cell.
During meiosis, chromosomes undergo a process called crossing over, in which segments of DNA are exchanged between homologous chromosomes. This creates genetic diversity in the resulting gametes, which is important for the evolution of species.
Mutations are changes in the DNA sequence that can occur during meiosis or at any other time in an organism's life. Mutations can be caused by a variety of factors, including exposure to radiation, chemicals, or viruses. Some mutations can be beneficial, leading to the evolution of new traits, while others can be harmful or even lethal.
During meiosis, mutations can occur as a result of errors in DNA replication or crossing over. For example, if a segment of DNA is not copied correctly during replication, it can result in a mutation in the resulting gamete. Similarly, if crossing over occurs at the wrong place or in the wrong way, it can result in a mutation.
Overall, meiosis is an important process that is closely related to mutations. While meiosis creates genetic diversity through crossing over, mutations can also contribute to genetic diversity and evolution.
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Drag each label to the correct location on the image.
identify the parts of the male reproductive system on the diagram
epididymis
testis
urethra
vas deferens
prostate gland
seminal vesicle
Answers
Answer in the picture below.
