Denaturation is done at a very high temperature of 95 degree Celsius for complete separation of mouse DNA.
What is PCR?The polymerase chain reaction, or PCR, is one of the most important uses of molecular biology. To amplify the target DNA molecule, PCR is utilised. In a thermal cycler, PCR is performed.
The three main stages to do PCR are as follows:
1. Denaturation 95 degrees Celsius is a very high temperature at which it is performed. This high temperature causes a process known as denaturation, which causes the DNA strands to split from one another.
2. The temperature is lowered to 55 degrees centigrade for renaturation in order to allow the denaturized DNA strands to anneal with one another.
3. DNA synthesis Deoxyribonucleotides, a thermostable DNA polymerase, and an RNA primer are added to the 3" ends of both strands to carry out the synthesis of new DNA strands relative to the template strands.
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Which best helps scientists determine the age of fossil
Explanation:
To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.
The method that best helps scientists determine the age of fossils is radiometric dating. This method is highly accurate and reliable, providing precise numerical ages for fossils.
Radiometric dating is a technique that uses the decay of radioactive isotopes to calculate the absolute age of rocks, minerals, and fossils. Different isotopes have specific half-lives, which is the time it takes for half of the radioactive parent isotopes to decay into stable daughter isotopes.
By measuring the ratio of parent isotopes to daughter isotopes in a fossil or rock sample, scientists can determine how many half-lives have passed and calculate the age of the specimen.
This method is highly accurate and reliable, providing precise numerical ages for fossils and other geological materials, and helping scientists understand the timeline of Earth's history and the evolution of life on our planet.
Therefore, The method that best helps scientists determine the age of fossils is radiometric dating.
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During photosynthesis in plants, what is the source of the carbon in the glucose sugar molecule
(C6H12O6)?
Carbon dioxide in the air
Carbon monoxide in the air
Carbon particles in the soil
Carbon particles in water
Answer:
Carbon in the air
Explanation:
How can you use what you have learned in Biology to help yourself, family and the planet?
Answer: I’m not sure what you’ve learned but for me it’s that you shouldnt leave the lights on when you don’t need them, you should switch off the TV when you aren’t using it, if you see a piece of trash pick it up and throw it in a trash can, and recycle
Explanation: HAPPY (late) EARTH DAY!!
please help!!!!!!!!!!!!!!!!!!
Answer:
The clownfish and anemone won't be able to survive in the wild without each other. The clownfish provides the anemone with nutrients and scares off potential predator fish. The anemone provides the clownfish with protection and shelter.
Explanation:
Which organism is a secondary consumer?
a. Bear
b. Weasel
c. Deer
d. Rabbit
e. Grass
Answer:
I think weasel.
Hope it helps! :)
Explanation:
Write 5-6 sentences that explains roles of Heredity and probability.
Answer:
Probability is a method for determining the likelihood of something uncertain occurring. If you flip a coin, you do not know whether it will be heads or tails, but probability can tell you that there is a 1/2 chance of either happening. Probability is a method used to predict the likelihoods of uncertain outcomes. It is important for the field of genetics because it is used to reveal traits that are hidden in the genome by dominant alleles. Probability allows scientists and doctors to calculate the chance that offspring will inherit certain traits, including some genetic diseases like cystic fibrosis and Huntington's disease.
Explanation:
31. Which sequence shows increasing ecological
levels of organization?
A. organism, population, community, ecosystem
B. ecosystem, population, organism, community
C. community, ecosystem, population, organism
D. population, organism, ecosystem, community
Hello there, kawissaehsshen!!!
The answer here would be A. The organism is a singular thing, so it should be first. The population comes next - it is all the same type of organism living in one ecosystem. Next is community - this is all the living organisms in the area. Lastly, there is the ecosystem - the organisms, their habitats, and everything else.
I really hope this helps you!!
The diagram shows a cladogram.
Which statement is supported by the cladogram?
A. The tuna does not have a
jaws.
B. The leopard does not walk on four legs.
C. The lamprey does not have vertebral column.
D. The salamander does not produce an amniotic egg.
Answer: C
Explanation:
Phytoplankton are microscopic organisms that perform photosynthesis in oceans. When urban pollution runoff makes it to the oceans, it poses a threat to humans by killing numerous phytoplankton. How does reducing the number of phytoplankton most directly affect humans? O E. The atmosphere will contain more oxygen, resulting in warmer global temperatures. G. The atmosphere will contain more carbon dioxide, resulting in cooler global temperatures. H. The atmosphere will contain more oxygen, resulting in cooler global temperatures. O J. The atmosphere will contain more carbon dioxide, resulting in warmer global temperatures. WILL MARK BRAINLEST IF CORRECT!!!
Answer:
The atmosphere will contain more oxygen, resulting in warmer global temperatures.
Explanation:
I did this on my test
The reduction of the number of phytoplankton that impact the human should be that atmosphere will contain more oxygen, leads in warmer global temperatures.
What is phytoplankton?It is also called as the microalgae that should be same like the terrestrial plants which comprise of the chlorophyll and it needs the sunlight for living and growth.
It is to be considered as the buoyant and float in the upper part of the ocean where the sunlight should be penetrates with the water
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Why would a Nonsense mutation be less damaging if it occurred at the end of the gene rather than the
beginning?
Which cities are experiencing clear weather? Which are experiencing rainy weather?
(Help me with questions 3 and 4 in the attachment please :( )
Answer:
3.) San Fransico and Denver because they are far away from the rain
4.) Dallas because it is right next to the high pressure
Which term means a volume of a certain rock type of a specific age?
x geologic map
geologic unit
contact
O fault line
The answer is geologic unit
Thanks. :) this is really :)
what are the Seven parts of the water system
1: Evaporation
2: Condensation
3: Sublimation
4: Precipitation
5: Transpiration
6: Runoff
7: Infiltration
which of the following is a matter
Answer:
gas, liquid and solid
Explanation:
hi
suggest why an MRSA infection may have to be treated with many different antibiotics
Answer:
A trio of antibiotics that had become powerless against MRSA decades ago proved effective in infected mice when used together.
Although more testing is needed, the results suggest that combinations of already-approved antibiotics might add to our options to combat MRSA infections.
Explanation:
Rocks are made of collections of mineral grains that are held together in a firm, solid mass. Rocks are identified primarily by the minerals they contain, their color, and their texture.
Based on this passage, you can infer...
A. Rocks are classified into three major groups
B. Rocks form from the cooling and hardening of molten rock
C. A rock's origin is the way it was formed
D. Each type of rock has a distinctive set of minerals
OMG PLSSS HELP ME PLS PLS PLS!!!!!!!
Answer:
Explanation: it’s a
Someone please answer i’ll give you brainliest.
Answer:
You can go with first option
Explanation:
First option contains mitochondria, vacuole, nucleus, cell membrane, cytoplasm
These elements contained by both cells animals and plants
But in other option cell wall is also in the options
So, but it is contained by plant cells only so they are not correct
THANK YOU
If you are helped with my answer pls tag me brianliest I really want it.......
What kind of rock? Igneous, Metamorphic, sedimentary. Explain why? plz help!! ASAP
Answer:
sedimentary
Explanation:
it seems eagle rock has sedimentary features, such as layers, or ripple marks
what happens during cytokines
Answer:
during cytokines the cytoplasm( the liquid center of the cell that holds the organelles in to place) split into two equal half's, and the cell becomes two daughter cells.
write two examples of consumers tell whether they are herbivores omnivores carnivors or scavengers
Answers
Lion,Tiger -Carnivores
vulture- scavenger
Cow,sheep -Herbivores
Man, Pig -Omnivores
In an ecosystem, consumers are organisms that obtain their energy and nutrients by feeding on other organisms. They are a vital part of the food chain, and they come in different sizes and types.
Consumers can be classified into several categories based on what they eat. For example:
Herbivores: These are animals that consume only plants for their food. Examples include rabbits, cows, and giraffes.Carnivores: These are animals that consume other animals for their food. Examples include lions, tigers, and sharks.Omnivores: These are animals that eat both plants and animals. Examples include humans, bears, and raccoons.Scavengers: These are animals that feed on the remains of dead organisms. Examples include vultures, hyenas, and some types of beetles.Consumers play an important role in an ecosystem, as they help to transfer energy and nutrients from one level of the food chain to another. They are an integral part of maintaining the balance and stability of an ecosystem.
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What signals the end of
the cell cycle?
A. cell death
B. Cancer
C. Cell division
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How does the location of the heart, lungs, and brain differ in the human body?
A) The brain and heart are located in the head while the lungs are located in the chest.
B) The brain is located in the head while the heart and lungs are located in the chest.
C) The heart is located in the head while the brain and lungs are located in the chest.
D) The lungs are located in the head while the heart and brain are located in the chest.
Answer:
B
Explanation:
The heart and lungs are in the chest, while the brain is located at the head.
Answer:
B
Explanation:
I got it right on my test
Which of the following is not a tectonic boundary
A) convergent
B) divergent
C)transform
D) sedergent
Answer:
transform
Explanation:
trust me
the ovary develops into the?
Answer:
Ovules
I hope this helps!
Answer:
fruit
Explanation:
The ovary itself will mature into a fruit, either dry or fleshy, enclosing the seeds
Fill in the blank below with the vocabulary word that best completes the sentence.
Natural selection leads to
a process of change in a population over time.
DO NE
Answer:
natural growth
Explanation:
because all thing's which are natural are natural resources.
Answer:
Fill in the blank below with the word that best completes the sentence.
Natural selection leads to Evolution, a process of change in a population over time.
after
Complete the sentence below by selecting the correct words from the drop-down menus.
Factors that affect natural selection include
✔ variation
,
✔ overpopulation
, and
✔ adaptation
.
Explanation:
What is the relationship between atmospheric pressure and the density of gas particles in an area of decreasing pressure? O As air pressure in an area decreases, the density of the gas particles in that area decreases. O As air pressure in an area decreases, the density of the gas particles in that area increases. O As air pressure in an area decreases, the density of the gas particles in that area remains constant. O As air pressure in an area decreases, the density of the gas particles in that area increases and decreases in an alternating pattern.
Answer:
As air pressure decreases so does density of gas particles
Explanation:
The process of one ecological community gradually changing into another is called:
community development
ecological succession
O community succession
O ecological development
Answer:
ecological succession
Are scallops decomposers?
Answer:
Yes they are.
Explanation:
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If sperm contains both x and y chromosomes then who decides the gender. Whether egg chooses which sperm( a sperm carrying x or y chromosomes) has to be fertilized.
Answer:
Egg cells all contain an X chromosome, while sperm cells contain an X or Y chromosome.
Explanation:
This arrangement means that it is the male that determines the sex of the offspring when fertilizationocc
what is Spermatogenesis ?