Answer:
The principal enzyme involved in DNA replication is called _DNA polymerase_. The enzyme joins _nucleotides_ to synthesize a new __complementary_ strand of DNA. DNA replication is called __semiconservative__ because each new DNA molecule is made up of one original and one new strand.
Explanation:
DNA replication is the process through which DNI molecule duplicates. This event takes place during the S stage of the interphase. So when the cell divides during mitosis or meiosis, each cell will get a complete set of chromosomes.
DNI replication is semi-conservative because each new molecule carries an original DNI strand and a new one. The fact that the new molecule is composed of an original strand makes it semi-conservative. The old existing strands are used to synthesize the new complementary strand.
The origin of the replication requires helicase enzymes to break hydrogen bonds and separate the two original strands. The topoisomerase enzyme is necessary to release tension. Other proteins are also needed to join the strains and keep them separated. Once the molecule is opened, there is a region named replication forks. DNA polymerase makes the new nucleotides enter into the fork and pairs them with the corresponding nucleotide of the original strand. Adenine pairs timine, and cytosine pairs guanine.
DNA strands are antiparallel, and replication occurs only in 5´-3´direction. So one of the strands will replicate continuously, while the other strain will be formed by short fragments known as Okazaki fragments.
Primers are needed to make the DNA polymerase work. Primers are small units of RNA and are placed at the beginning of each new fragment.
Explain how genetic mutations may result in genetic and physical variations differences) within a population.
Answer:
The correct answer is - Mutations produce different versions of genes.
Explanation:
Mutations are the changes in the gene or DNA of an organism that leads to the production of different version of genes and proteins. Mutations result in genetic variation or physical variation within the population as it introduces new alleles in the populations.
Mutations introduce or remove various versions of genes called alleles within a population and increases genetic variation. These changes in the genes are the source for new genetic variation. Genetic or physical variation does not occur without mutations.
what is the process of VEGETATIVE PROPOGATION?? PLEASE HELP ME and Thank you so much!!
Vegetative propagation is an asexual method of plant reproduction that occurs in its leaves, roots and stem. This can occur through fragmentation and regeneration of specific vegetative parts of plants.
How does El Niño affect climate? (1 point)
O Warm water move westward, making coastal South America cooler.
O Warm waters move eastward, making coastal South America warmer.
O Winds blow the warm water southward, making coastal Alaska cooler.
Winds blow the warm waters northward, making coastal Alaska warmer.
Answer:
B. Warm waters move eastward, making coastal South America warmer.
Explanation:
During El Niño the warm surface water moves to central and eastern pacific ocean
Answer:b
Explanation:
Please transcribe this DNA code into the complementary
RNA code.
TCG GGG CTA ATC AAG
The transcribed code for the DNA as complementary to the RNA code is AGC CCC GAU UAG_ UUC . Th the option D is correct.
What is the RNA code?The RNA code is made of four nucleotides that are adenine, guanine, the cytosine, and the uracil. The code makes a unit known as a codon which forms the amino acid. The RNA consists of a code that is kept by the cell DNA and signals the formation and end of the protein synheis.
Find out more information about the RNA code.
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Clouds form when water vapor in the air condensed to form
Answer:
liquid water or ice crystals (visible water droplets)
Explanation:
which substance is harmful to the body when consumed (A) calcium (B) Cobalt chloride (C) iron (D) phosphorus (E) sodium chloride
Answer:
I think it's probably E, sodium chloride
What can scientists assume about individuals with similar anatomy?
I
Answer:
Scientists compare the anatomy, embryos, and DNA of living things to understand how they evolved.
Explanation:
Evidence for evolution is provided by homologous structures. These are structures shared by related organisms that were inherited from a common ancestor. Other evidence for evolution is provided by analogous structures
Scientists use anatomy for the study of the evolution of DNA other organs and how they are modified.
Similar anatomy means homologous structure as they provide the information for evolved structure. They provide evolutionary evidence.
What is an analogous structure?
Organisms that have developed alongside special paths may also have analogous systems—that is, anatomical functions which can be superficially just like one another (e.g., the wings of birds and insects). Although such systems serve comparable functions, they have got pretty special evolutionary origins and developmental patterns.
Thus it is clear that scientists assume individuals with similar anatomy for evidence of evolution.
To know more about homologous refer to the link ;
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Put these in order NO LINKS NO LINKS
Choices: bronchi, nasal cavity, capillaries, trachea, pharynx, aveoli, bronchioles
Answer:
From smallest to largest:
Capillaries, alveoli, bronchi. bronchioles, trachea, pharynx, nasal cavity.
is chloroplast an Organ an organelle a process an organic molecule or a building block
True or false
An allele is the name given to the position of a gene on a chromosome.
Answer:
false
Explanation:
What are the two kinds of rainforests?
Answer:
tropical and temperate.
Explanation:
Tropical rainforests are found closer to the equator where it is warm. Temperate rainforests are found near the cooler coastal areas further north or south of the equator. The tropical rainforest is a hot, moist biome where it rains all year long.
How do coral reef ecosystems demonstrate the ecological principles of shifting baselines, disturbance, succession, and sustainability?
Answer:
Explanation:
c
Answer:
Explanation:
Sorry, I answered the wrong question.
PLEASE HELP
Which statement best describes peristalsis? O Peristalsis is a voluntary, two-way movement. Peristalsis moves the food along the digestive tract. Peristalsis breaks down carbohydrates in the mouth. Peristalsis absorbs water and nutrients.
Answer:
B
Explanation:
Answer:
B
Explanation:
cual es la diferencia netre los cloroplastos y la cianobacteria si ambos son bacterias fotosinteticas???
Answer:
Encontré esto en un texto de microbiología, tal vez sea útil.
Explanation:
"Las cianobacterias y los cloroplastos de las plantas tienen ambos fotosistemas, mientras que las bacterias fotosintéticas anoxigénicas sólo utilizan uno de los fotosistemas. Ambos fotosistemas son excitados simultáneamente por la energía luminosa. Si la célula requiere tanto ATP como NADPH para la biosíntesis, entonces llevará a cabo una fotofosforilación no cíclica".
Si estoy equivocado, pido disculpas. También lo he sacado de un traductor así que si suena mal también me disculpo por ello.
What are the three differences between sugars in DNA and RNA?
What are tiny organisms that float near the surface of freshwater and marine environments?
Answer:
These tiny creatures are referred to as "plankton."
Plankton includes plants and animals that float along at the mercy of the sea's tides and currents. Their name comes from the Greek meaning "drifter" or "wanderer."
please write me a polar bear slogan
Answer:
Polar bears are cool
Explanation:
like cold
ha
ha
ha
Activators are specific DNA sequences which increase the rate of transcription.
A. True
B. False
Answer:
A is your answer
Explanation:
in your own words,what is the definition for vitamin?
please help me with this. im having writers block right now and i cant think.
Answer: vitamin is
any of a group of organic compounds which are essential for normal growth and nutrition and are required in small quantities in the diet because they cannot be synthesized by the body.
an organisms haploid number if its diploid number is 32?
Answer:
The haploid (n) number would be 23 chromosomes found in the gametes, reproductive cells of sperm and ova. For the organism in this example the diploid (2n) number is 12 making the haploid (n) number would be half of that or 6 chromosomes
Answer:
16
Explanation:
This is because the diploid number of an organism is double the haploid number, therefore 32/2=16
A beneficial association between coral and algae is an example of
a. commensalism
b. mutualism
c. parasitism
d. predation
Answer: B
Explanation:
The corals and algae have a mutualistic relationship. The coral provides the algae with a protected environment and compounds they need for photosynthesis. In return, the algae produce oxygen and help the coral to remove wastes.
O
It could cause snow to melt, flood, and drown local
plants and animals.
O
It could decrease the amount of rock at the bottom
of the volcano.
O
It could increase the amount of sunlight that
reaches plants on the volcano.
o
It could decrease the number of minerals in soil
found around the volcano.
Answer:
Local effects of volcanic eruptions
Explanation:
Lava flows, volcanic landslides, mudflows, and ash flows (nuees ardentes) generally result in total obliteration of any ecosystem in their path. ... Volcanic ash weathers rapidly and releases plant nutrients.
If a population grows by 3 percent each year, the growth of the population is
A. exponential
B. linear
c. cubic
D. logarithmic
Answer:
A. (exponential) population
If a population grows by 3 percent each year, the growth of the population is exponential. Hence, option A is correct.
What is exponential growth?A function called exponential growth depicts an expansion within a population that happens at the same pace across time. If a population doubles or triples in size, you can assume that the data grows exponentially. Exponential decay is the inverse of exponential growth, in which data contracts rather than expands.
Bacteria are one of the best illustrations of exponential growth. Prokaryotic fission is a method of bacterial reproduction that takes around an hour. The population size of 100 bacteria would increase exponentially if we measured it every hour in a certain environment.
The population growth is exponential. Hence, option A is correct.
Learn more about exponential growth, here:
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How can pollution reduce the rate of photosynthesis? Research work (60-90 words) unnecessarily,useless answers will be reported
[tex] \huge\mathcal\green{answer}[/tex]
Air pollution has become an extremely serious problem. Air pollutants affect both plants and animals. Under polluted conditions, plants develop different physiological, morphological and anatomical changes. Pollutants cause damage to cuticular waxes by which then they enter the leaves through stomata. This further leads to injury to plants which can be either acute or chronic. Changes in stomata due to air pollutants which seem to be small can be of great consequence with respect to survival of the plant during stress. These effects can further lead to disturbing the water balance of leaf or whole plant. Respiration also gets affected because of the exposure of plants to air pollutants. The present paper deals with the effect of air pollutants on stomata as well as on respiration leading to affect gaseous exchange.
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[tex] \huge\mathfrak\green{mark \: as \: bainliest}[/tex]
6. explain the relationship between temperature and pressure. why do you think this occurs?
Answer:
The pressure of a given amount of gas is directly proportional to the temperature at a given amount of volume. When the temperature of a system goes up, the pressure also goes up, and vice versa.
Explanation:
This occurs because of the pressure temperature law. (or also known as the Gay-Lussac's law)
Humans select from among the naturally occurring genetic variations in a species in the
process of
A) natural selection
B) genetic equilibrium
C) artificial selection
D) survival of the fittest
Answer:
A) Artificialal Selection
Explanation:
The selection is controlled by humans seeking particular phenotypes
Which of these phenotypes are recessive?... check all that apply.
Ww
Straight Hairline
tt
Smooth Chin
DD
No Freckles
Detached earlobes
Answer:
tt - smooth chin
Explanation:
have a great day!
Find the volume of the cylinder to the nearest tenth 30 in 10 in
Answer:
9424.78 inches cubed
Explanation:
V=πr^2h
π*100*30
Have a good day :)
For the growth curve to continue increasing, which of these must occur?
The environment must provide a habitat for a large variety of organisms.
The organisms must migrate to a new environment.
The organisms must adapt to a new habitat.
The resources in the environment must be unlimited.
Answer:
Out of all the answer choices I would say the answer is A: The environment must provide a habitat for a large variety of organisms. i hope this helped you.
Explanation: This is because it would not make sense for the orginisms to move and we can say that the 3rd answer is true but it doesnt make the most sense and we can also eliminate the last one
What is the difference in the number of chromosomes found in each cell produced in meiosis compared with mitosis?
a-Cells produced during meiosis have half the number of chromosomes as cells produced in mitosis
b- Cells produced during mitosis have half the number of chromosomes as cells produced in meiosis.
c-Cells produced during meiosis have the same number of chromosomes as cells produced in mitosis.
The cells in our bodies contain 23 pairs of chromosomes - giving us 46 chromosomes in total. Sperm cells and egg cells contain 23 single chromosomes, half the normal number, and are made by a special form of cell division called meiosis. ... Meiosis II divides each chromosome into two copies (much like mitosis).