Answer:
A DNA fragment is inserted into a plasmid.
The DNA fragment replicates during cell division.
The plasmid enters a host bacterial cell.
The plasmid becomes part of a host cell's chromosome.
A host cell produces a protein that it would not have produced naturally.
Explanation:
Recombinant DNA is the DNA molecules formed invitro or lab condition with the help of a plasmid, bacterial cell as host and a desirable gene or DNA fragment by the technique of genetic engineering or recombination. This is also known as molecular cloning.
The correct order of steps in the DNA recombination process are as follows:
The desired DNA fragment is inserted into a vector or plasmid.
The DNA fragment replicates during cell division.
The plasmid enters a cell of host bacterial
The plasmid becomes part of a host cell's chromosome.
A host cell produces a protein that it would not have produced naturally.
Which change is not likely to help a community reduce its use of fossil fuels?
O A. Giving citizens money to install solar panels on their homes
B. Lowering natural gas prices in the community
O C. Installing wind turbines in windy areas
D. Switching from coal to hydropower
Answer:
B
Explanation:
Lowering gas price's will only make the community use more fossil fuels
State some changes in boys and girls during puberty
Answer:
Girls have a change in the way they act and behave, mood swings and changes in there body and growth. Boys have changes in growth and there voices might change.
Explanation:
There. Short answer sorry lol
The chemical reaction that represents photosynthesis is 6 H20 + 6 CO2 → C6H12O6 +6
O2. What are the reactants?
Answer:
The chemical equation for photosynthesis is 6CO2+6H2O→C6H12O6+6O2. 6CO2+6H2O→C6H12O6+6O2. In plants, the process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts. Chloroplasts contain disc-shaped structures called thylakoids, which contain the pigment chlorophyll.
Explanation:
3. What does the Earth's magnetic field reveal about the structure of the Earth's layers?
That the outer core is solid.
That the outer core is liquid.
That the mantle is solid.
That the mantle is liquid.
Answer:
The above answer is correct. The answer is That the outer core is liquid.
The Earth's magnetic field reveals the structure of the Earth's layers and the outer core is liquid. Thus, the correct option for this question is B.
What is the principle of magnetic field reveal about the earth?The principle of earth's magnetic field states the production of attraction by the motion of molten iron in Earth's core, the magnetic field protects our planet from cosmic radiation and from the charged particles emitted by our Sun. It also provides the basis for navigation with a compass.
The magnetosphere is the region that is located above the ionosphere that is defined by the extent of Earth's magnetic field in space. The Earth is composed of layers having different chemical compositions and different physical properties.
The crust of the Earth has some permanent magnetization, and the Earth's core generates its own magnetic field, sustaining the main part of the field we measure at the surface.
Therefore, the Earth's magnetic field reveals the structure of the Earth's layers and the outer core is liquid. Thus, the correct option for this question is B.
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2. Select the systems below that are affected by cystic fibrosis:*
A. Reproductive
B. Lymphatic
C. Respiratory
D. Gastrointestinal
E. Neuro
F. Integumentary
OOOO
Answer:
ACDFHope it helps youThe systems affected by cystic fibrosis are the respiratory, gastrointestinal, reproductive, and integumentary.
Cystic fibrosis is a condition that damages organs in the gastrointestinal system or digestive system and the respiratory system. It can lead to damages in:
The lungs (respiratory system)The pancreas (gastrointestinal system)This condition is caused by the accumulation of mucus on organs due to a defective gene. This accumulation leads to negative effects in these systems but also in other systems such as:
Frequent respiratory infection (respiratory system)Damage to the airways (respiratory system)Digestive problems such as diarrhea or constipation (digestive system)Infertility (Reproductive system)Yellowing of the skin (integumentary system)Thus, the systems affected are the respiratory, gastrointestinal, reproductive, and integumentary; while others such as the lymphatic or neurological are not affected.
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Please choose the correct letter option below
Someone please help me
Answer:
mass and volume
Explanation:
Matter is anything that has mass and takes up space
An aquifer is a non permeable layer of rock that contains or transports
state two functions of a microscope
Answer:
what is microscope is a laboratory instrument used to examine objects that are too small to be seen by the naked eye.
FUNCTIONS : The microscope is one of the most important tools used in chemistry and biology. This instrument allows a scientist or doctor to magnify an object to look at it in detail. Many types of microscopes exist, allowing different levels of magnification and producing different types of images
Which line
represents
constant speed?
Answer:
b
Explanation:
ATP Synthase is a channel for protons to pass from and area of High concentration to an area
of low concentration. This makes in an example of:
Active Transport
Filtration
Facilitated Diffusion
Osmosis
Exocytosis
Translate this rna triplet : UUU
C. Suppose you catch 100 fish out of this pond. About how many of these fish would you expect to be
tagged? Explain.
Sot the Fish to catch to 100. Click Catch and check. How does the number of tagged fish shown
Answer:
C
Explanation:
Please help me figure this out I don't understand this.
Answer: The big blue ball is the NUCLEUS, The things with The Rib looking things, Are the MITOCHONDRIA, The green circles are called the APICOPLAST, The outside is called the RBC, You might have to search the rest up because i don't know the rest!
Explanation:
Century
Page:
What
vestigial organs?
How do they support organic
evolution ?
Answer:
Explanation:
Structures that have lost their use through evolution are called vestigial structures. They provide evidence for evolution because they suggest that an organism changed from using the structure to not using the structure, or using it for a different purpose.
is protozoans biotic or abiotic
Answer:
biotic duh!!!!!!!!!!!!!!!!!!!!!!!!!!!!
A Mismatch occurs when:
A. organisms that were well adapted to one environment cannot evolve rapidly enough to adapt to new circumstances.
B. when an organism is well adapted to its environment
C. when an organism inherits a mutation that decreases its reproductive success
D. when a mutation increases the reproductive success of an organism
Answer:
A
Explanation:
A mismatch occurs when organisms that were well adapted to one environment cannot evolve rapidly enough to adapt to new changes in the environment. Hence, a trait that once confers an adaptive advantage becomes inimical due to the changes in the environment.
In order words, a mismatch occurs when a once adaptive trait becomes maladaptive or no longer confers an adaptive advantage to organisms due to a change in the environment but still persists in organisms.
For example, an organism with a body adapted to aquatic habitat suddenly finds itself in a terrestrial habitat due to climate change. The body that use to be adaptive to the environment would suddenly become maladaptive to the new environment.
The correct option is, therefore, A.
Maturation refers to
A. Acquiring socially acceptable behaviors
B. Biological growth processes that influence development
C. Learned behavior patterns that accompany personal growth
D. The physical and sexual development of early adolescence
Which of the following is not a risk factor for metabolic syndrome?
A. Hyperglycemia (high blood glucose)
B. Hypertriglyceridemia (high blood triglycerides)
C. Low LDL cholesterol
D. Excess abdominal fat
Answer:
The answer is C
Explanation:
Among the following is not a risk factor for metabolic syndrome is - C. Low LDL cholesterol.
A metabolic syndrome is a group of conditions that can result in cardiovascular diseases such as heart disease, diabetes, stroke, and other health problems. Metabolic syndrome is classified only if a person has three or more of the following risk factors:
High blood glucose or hyperglycemiaIncreased levels of LDL (“bad”) cholesterol in the bloodHigh levels of triglycerides in the bloodLarge waist circumference or “apple-shaped” body due to excess abdominal fatHigh blood pressureThus, the correct answer is - C. Low LDL cholesterol
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What is the role of ATP in photosynthesis?
How is tone in poetry defined?
Answer:
The poet's attitude toward the poem's speaker, reader, and subject matter, as interpreted by the reader. Often described as a “mood” that pervades the experience of reading the poem, it is created by the poem's vocabulary, metrical regularity or irregularity, syntax, use of figurative language, and rhyme.
Explanation:
In 1998, paleoanthropologist Rick Potts published an article in The Yearbook of Physical Anthropology, a peer-reviewed journal. The article was titled “Environmental Hypotheses of Hominin Evolution.” Which statement would discredit Potts’s objectivity if it were included in the article?
Answer:
I believe the human race is capable of great things.
Explanation:
Two genes (R or r) and (D or d), each with a dominant and recessive allele, are
inherited independently of each other. Which of the following combinations
could result in gametes of a plant with an Rr Dd genotype?
A. RD and rd
B. DR, Dr, Rd, dr
C. DD, Dd, dd, RR, Rr, rr
D. Rrand Dd
Answer:
B. DR, Dr, Rd, dr
Explanation:
This question involves two genes. Alleles D and R are dominant over alleles d and r. These two genes obey the law of independent assortment as proposed by Gregor Mendel.
Based on the question, a genotype RrDd will produce the following combination of gametes following the process of meiosis:
DR, Dr, dR, dr
timeline of the discovery of Uranus
13, 1781: British astronomer William Herschel discovers Uranus—the first new planet discovered since ancient times - while searching for faint stars. 1787-1851: Four Uranian moons are discovered and named Titania, Oberon, Ariel and Umbriel. 1948: Another moon, Miranda, is discovered. Mar.
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Someone please help me
Marine science notes what is marine science
Answer:
The study of oceans and their life.
Explanation:
The study of oceans, including seawater, the ocean floor, and marine plants and animals.
Describe: Fossil fuels are used in many ways. Using the Gizmo, describe the main use for each fuel.
Coal:
Petroleum:
Natural gas:
In each case, what is the end product of burning the fossil fuel, and where does it go?
Answer:
Coal:
Coal is primarily used as fuel to generate electric power
Petroleum:
heating and electricity generation, asphalt and road oil, and feedstocks for making the chemicals, plastics, and synthetic materials
Natural gas:
heating, cooking, and electricity generation.
it all end up in the atmosphere
Explanation:
The coal is burned and the heat given off is used to convert water into steam, which drives a turbine.
petroleum was formed from the remains of ancient marine organisms, such as plants, algae, and bacteria.
Like oil, natural gas is a product of decomposed organic matter, typically from ancient marine microorganisms, deposited over the past 550 million years. This organic material mixed with mud, silt, and sand on the sea floor, gradually becoming buried over time.
Coal and natural gas are burned in power plants to boil water. Steam from boiling water converts turbines into electricity. Carbon dioxide from burning fuel is released into the atmosphere.
This is about description of fossil fuels which are simply fuels that are formed from natural processes.
The uses and end products of fossil fuels are talked about in the explanations below;
1) (I) The primary use of the fossil fuel named coal is to generate electricity.ii) When coal is burnt, it produces a very high heat. This heat is so high that it converts water into high-pressure steam. What drives a turbine is a high pressure steam and this drive makes the turbine to produce electricity.
2) I) Petroleum products are used to set vehicles in motion, for asphalt on roads, production of electricity and heating of buildings.II) when petroleum is burnt to create energy, it produces high amount of carbon dioxide and other toxic gases into the atmosphere that can cause greenhouse effect.
3) I) Natural gas is used primarily as a source of energy for cooking, generating heat and for providing electricity.II) When it undergoes combustion is produces large amount of carbon dioxide and nitrogen oxides into the atmosphere.
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The pedigree below shows two generations of individuals within a family. The pedigree shows
that a daughter has a genetic trait, even though neither of her parents nor her siblings have the
trait.
7. How can the daughter have the genetic trait if no one else in the family has it?
A. The trait is determined by a recessive allele.
B. The trait is not inherited.
C. The trait is determined by a dominant allele.
D. The trait is passed only from female to female.
Answer: B The trait is determined by a recessive allele
4. The diagram below shows the procedures scientists use to clone a frog from the nucleus
of another frog's skin cell.
Skin cells in
culture dish
Nucleus in pipet
Inject nucleus
into egg
Tadpole
Young
embryo
Adult frog
Untertilized e99
mo
Destroy nucleus
by irradiation
The procedure is evidence that
A. The nucleus of a skin cell protects the frog.
B. Only skin cells can be used to clone a frog.
C. The skin cells are the reproductive cells in frogs.
D. The nuclei of the skin cells of the frog contain all the DNA needed to clone the
frog.
Answer:
D
Explanation:
the nuclei of the skin cells of the frog contain all DNA needed to clone the frog
The branch of science which deals with the study of a living being is called biology.
The correct option is D
The branch of biology which deals with living things along with technology is called biotechnology. In the question, the genes from the Skin cell of the frog are injected into the egg cell.
This experiment is done because scientist wants to inject the skin cell and pass this character to the new frog without fertilization.
Hence the correct option is D that is The nuclei of the skin cells of the frog contain all the DNA needed to clone the frog.
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During asexual reproduction, does the organism NEED to make a copy of two organisms or can it just be one?