Answer:
DNA paternity testsExplanation:
The DNA of an individual is equal and the same in every somatic cell. While in egg or sperm, the chromosome number and DNA amount is half as compared to somatic cells. In sexual reproduction, one cell comes from father and one cell comes from mother brings the DNA of both parents and finally fuse together and forms a unique combination of genetic material, so the genetic material of an individual is derived from both parent in equal amounts .
Comparing the DNA sequence of one individual to the DNA sequence of other individual can prove what is the relation between them and if one of them was derived from the other, but DNA paternity tests are not 100% accurate. Specific sequences are examined to find the difference and similarities.
Besides nuclear DNA, mitochondria also contain their own, called mitochondrial DNA. The pattern of inheritance of mitochondrial DNA is that it passes only from the mother to the child without any shuffling. So, mitochondrial DNA is used only used to test for maternity not for paternity.
Some of the DNA tests like DNA paternity test can help to determine the parent of a particular child. In the test, the DNA is matched of the child and the parent.
What is DNA paternity test?DNA or the deoxyribonucleic acid refers to the genetic material, which one inherits from the mother and father. In the DNA paternity test, the DNA is used, which is generally obtained from a cheek swab to find the biological father of the child. Paternity means fatherhood.
The test is almost precise, but not 100 percent accurate. The test is mainly performed to attain legal rights to child custody and to determine the genetic conditions, which can influence one's health.
Thus, DNA test is done to find the parent of the child.
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During which stage of mitosis do the chromosomes attach to the spindle fibers and line up in the center of the cell?
Anaphase
Interphase
Metaphase
Telophase
Answer:
C. Metaphase
Explanation:
A reduction in sea ice due to climate change has negatively affected the food abundance of _______.
A. Frigates
B. Albatrosses
C. Penguins
D. Plovers
E. Pelicans
A reduction in sea ice due to climate change has negatively affected the food abundance of Penguins.
Explanation:
Sea ice is ocean water frozen blocks. Unfortunately, rather than most other areas, climate change impacts Antarctica. If the temperatures on the surface of air and water rise, the sea ice melts. This leads to many marine mammals and seabirds losing their habitat and food supply, including Adelie penguins.The biggest threat to the penguins stems from changes in the Antarctic sea-ice cover, that will affect its feeding and breeding.Angelique has several symptoms of pneumonia that her doctor diagnoses as being caused by a virus. Her parents ask for an antibiotic prescription, but the doctor recommends other treatment. Why did the doctor give this advice?
Answer:
antibiotics do not kill viruses.
Explanation:
antibiotics only kill bacteria, they cannot kill viruses.
Answer:
Antibiotics only work fro bacteria. You would need and antiviral prescription for it to work on a virus.
PLZ HELP!!! I'm timed. I need answer as soon as possible. Will mark the brainliest if correct and ad a thanks with a rate of 5 too. thank you :) .
Which definition best describes global warming?
a long-term change in the Earth's climate
a long-term increase in the Earth's average temperature
a long-term change in the climate of a region or a city
solar heat that is radiated out into space
Answer:
I think it's the 2nd one
What advantage does nuclear power have over fossil fuels?
A. It is less expensive
B. It has less risk of a dangerous explosion
C. It is available to poor countries
D. It has no negative byproducts
Answer:
D}
Explanation:
Answer:
A. It is less expensive
Hope this helps :)
Based on the passage, both plants and humans
I NEED THIS RIGHT NOW! Can someone please help me.
Answer:
b
Explanation:
Select the correct answer from each drop-down menu.
How can you reduce air pollution arising from transportation?
Use
Avoid
because they emit relatively less pollution
to reduce the emission of pollutants.
Answer:
We can reduce air pollution by using vehicles run by electricity which emitted no harmful gases while we have to avoid vehicles which uses fossil fuels for running because it produces a lot of harmful gases and pollute the environment.
Explanation:
Air pollution is increasing day by day due to the use of fossil fuels such as petrol and diesel, in the vehicles which is burn in the engine and releases harmful gases such as carbondioxide gas etc. This gas is also responsible for the global warming of the earth atmosphere.
Answer:
carpool & accelerating rapidly
Explanation might be right!
Identify each of the following as a positive or negative impact of science on society. In 1965, Congress passed the Cigarette Labeling and Advertising Act. In the 1930s, medical journal articles linked asbestos to cancer. For more than 2,000 years, asbestos has been used in home insulation, roofing, cements, tiling, and brake pads. In the 2000s, industries specialize in asbestos reduction. Scientists provided evidence that secondhand smoke causes cancer.
Answer:
Positive impact
Positive impact
Negative impact
Positive impact
Positive impact
Answer:
Positive impact
Positive impact
Negative impact
Positive impact
Positive impact
Explanation:
The image below represents a phase in what process?
Conjugation
Mitosis
Binary fission
Transduction
Answer:
Mitosis in Metaphase
Transition step:
Each pyruvic acid molecule is transported to the ____________
A one carbon molecule called _____ is released from each molecule of pyruvic acid and the remaining 2-carbon unit that is formed is called ________.
CoenzymeA is then attached to _ ____ to form ____________.
Additional energy is stored as reduced ______ molecules
Answer: mitochondrion, carboxylic group , acetyl group, acetyl group, acetyl CoA, NADH
Explanation:
Two pyruvate molecules remain at the end of glycolysis which still have a lot of extractable energy. The next step in storing the remaining energy in the form of ATP is oxidation by pyruvate. The transition steps are as following:
Pyruvate must join the mitochondrion, cross its inner membrane and arrive at the matrix before the chemical reactions can begin. A group of carboxyl (one carbon molecule) is snipped off of pyruvate and released as a carbon dioxide molecule, leaving behind a two-carbon molecule called the acetyl group. The oxidised two-carbon molecule, acetyl group attached to Coenzyme A to form acetyl CoA.The additional energy during conversion is reduced NADH molecules and two carbon dioxide molecule.Hence the correct order to fill the blanks is mitochondrion, carboxylic group , acetyl group, acetyl group, acetyl CoA, NADH.
I need help with number 12 please
Maya made the diagram below to represent ultraviolet rays, radio waves, gamma waves, and infrared rays based on their properties.
Which of the following best represents a radio wave?
Wave A
Wave B
Wave C
Wave D
Which of the following planets has one moon? Group of answer choices Earth Jupiter Neptune Saturn
Answer:
earth
Explanation:
Jupiter has 79 moons and Neptune has 14 moons and Saturn has 62 moons
Which of the following is an example of homeostasis?
A) In a dangerous situation, your senses heighten, your muscles tense, and your heart pumps faster.
B) If you are sleepy, you can drink coffee to stay awake.
C) When you are sick, your body temperature increases and you get a fever.
D) When you drink a lot of water, you urinate (pee) more than usual.
Answer:
C) When you are sick, your body temperature increases and you get a fever.
Explanation:
The deepest ocean trenches have high salt concentrations that can reach upwards of
10 pounds per square centimeter.
10 tons per square inch.
10 pounds per square inch.
10 tons per square centimeter.
Answer:
Its 10 Tons per square centimeter
Explanation:
The deepest ocean trenches have high salt concentrations that can reach upwards of 10 tons per square centimeter.
What are the functions of ocean trench?Oceanic trenches are prominent long, narrow topographic depressions of the ocean floor. They are typically 50 to 100 kilometers wide and 3 to 4 km below the level of the surrounding oceanic floor.
Ocean trenches are a result of tectonic activity, which describes the movement of the Earth's lithosphere.
Trenches are formed through subduction, which occurs when tectonic plates collide and push one plate beneath the other.
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What type of proteins function as building blocks for larger structures ? ASAP plz
Answer:
The protein building blocks for larger structures are called amino acids.
Explanation:
Protein synthesis allows these amino acids to be manufactured. Soon they link together to form larger protein structures. The shape of the protein impacts its ultimate function.
Do oraginsions have to look the same in oder to be the same species?
Answer:
yes
Explanation:
Because they often survive at extreme temperatures, _______ are thought you have been the first organisms on the early earth
Answer:
Extremophiles
Explanation:
Extremophiles are organisms that have been discovered on Earth that survive in environments that were once thought not to be able to sustain life. These extreme environments include intense heat, highly acidic environments, extreme pressure and extreme cold. Different organisms have developed varying ways of adapting to these environments, but most scientists agree that it is unlikely that life on Earth originated under such extremes.
In Betta fish, colored bodies (B) are dominant to white bodies (b), and blue tails (T) are dominant to black tails (t). A Betta fish that is homozygous for having a colored body and a blue tail (BBTT) is crossed with a Betta that is white with a black tail (bbtt). What are the chances of producing an offspring that is white with a blue tail? *
Answer:
0
Explanation:
This question involves two genes in Betta fish; one coding for body color and the other coding for tail colour. The allele for colored body (B) is dominant over the allele for white body (b) in the first gene while allele for blue tail (T) is dominant over allele for black tail (t) in the second gene.
Thus, in a cross between a Betafish that is homozygous dominant for both genes (BBTT) and homozygous recessive for both genes (bbtt), each parent will produce only one type of gamete combination
BBTT- BT
bbtt- bt
Using this in a punnet square, all offsprings will possess a genotype: BbTt.
Since alleles B and T are dominant, a Bettafish with genotype BbTt will be phenotypically color-bodied and blue-tailed.
Hence, according to the question, the probability of producing an offspring with white body and blue tails will be O since no offspring has such genotype.
The chance of producing an offspring that is white with a blue tail from the described cross in Betta fish is 3/16 or about 18.75%.
To determine the chances of producing an offspring that is white with a blue tail when a Betta fish that is homozygous for having a colored body and a blue tail (BBTT) is crossed with a Betta that is white with a black tail (bbtt), a Punnett square can be used for each trait separately. Since one parent is homozygous dominant for both traits and the other is homozygous recessive, all offspring (F1 generation) will be heterozygous (BbTt) for both traits, displaying the dominant phenotypes: colored body and blue tail.
If two of the F1 heterozygous Betta fish (BbTt) are crossed, the resulting F2 generation will exhibit a variety of genotypes. The traits segregate independently, following Mendelian genetics patterns, which indicate a 9:3:3:1 phenotypic ratio for the two traits when F1 individuals mate.
Therefore, the chance of an offspring that is white with a blue tail (bbT-) will be calculated by determining the probability of the offspring being homozygous recessive for body color (bb) and having at least one dominant allele for tail color (T). This corresponds to 1/4 being homozygous recessive for body color multiplied by 3/4 having a blue tail (since both Tt and TT result in a blue tail), which equals 1/4 * 3/4 = 3/16, or about 18.75%.
Which is an example of an effect caused by Earth's magnetism?
A) Earth's magnetic field causes earthquakes.
B) Earth's magnetic poles repel the continents.
C) Earth's magnetic field causes volcanic eruptions.
D) Earth's magnetic poles attract the poles of a compass needle.
Answer: I think it's A. Correct me if i'm wrong.
Hope it helps! :D
Answer:
the answer is D
Explanation:
Complete this equation and balance it
Which of the following is not a physical factor that affects ventilation?
A.
size of the alveoli
B.
thoracic wall compliance
C.
size of the airway
D.
contraction and relaxation of muscle fibers
OPEN ENDED QUESTION
Over the last 300,000 years, what has
happened whenever carbon dioxide
increases in the atmosphere?
Answer:
global warming
Explanation:
Answer:
so that means you multiply 380 million* 2000 years.
and that would equal around 760000000000 and that is a ton
Explanation:
Over the last 150 years, carbon dioxide (CO2) concentrations have risen from 280 to nearly 380 parts per million (ppm).
hope this helped
brainliest plz
How would you define the following terms: category fallacy and unity of identity?
5. What are vertebrae?
A. small bones making up the backbone or spine
B. bones that the spinal cord runs through
C. bones that have joints allowing the spine to bend D. all of the above
Answer:D all the the above
Explanation:
Answer:
each of the series of small bones forming the backbone, having several projections for articulation and muscle attachment, and a hole through which the spinal cord passes.
Explanation:
Select the pair of bodies which are most alike in composition and size.
A. Earth and Venus
B. meteor and comet
C. Earth and Neptune
D .asteroid and comet
Answer: a
Explanation: because science
Earth and Venus are most alike in composition and size. Therefore, option A is correct.
What are the similarities and differences between earth and venus?Venus and Earth share many properties in common, including size, mass, density, and elemental makeup. Venus has a toxic atmosphere and an uninhabitable surface due to the vast differences between the planets' atmospheres, temperatures, and surfaces. Because of its resemblance to Earth, Venus is occasionally referred to as Earth's twin.
Our solar system contains the planets Venus and Earth, with Venus being the second closest to the sun and Earth being the third. The earth's mass is roughly 1.23 times that of Venus. Venus is hotter than Earth due to its proximity to the sun.
Earth and Venus are most alike in composition and size. Therefore, option A is correct.
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This one is also very difficult help
Fish, trees, and animals are important wildlife resources that we depend on for survival. Fish are a main source of food for many of the people in the world. Trees have been used to build and heat homes, make paper, and provide food for centuries. Humans hunt land animals such as deer, fox, antelope, and buffalo for food and other products. What can we do to protect wildlife resources so they will be around for future generations? can someone help
To protect wildlife resources for future generations, we can implement sustainable management practices, educate people about conservation, and promote alternative livelihoods.
Explanation:To protect wildlife resources for future generations, several measures can be taken. One approach is to implement sustainable management practices, such as setting fishing limits and establishing protected areas. By regulating access and preventing overexploitation, we can ensure that wildlife populations are not driven to extinction. Additionally, educating people about the importance of conservation and promoting alternative livelihoods can help reduce the pressure on wildlife resources.
Which is biotic?
water
temperature
beeswax
rocks
Answer:
beeswax
Explanation:
water is abiotic
temp is abiotic
rock are abiotic
and beeswax has to be biotic
Which stimulus most likely caused the leaves on
these trees to turn from green to yellow?
o
too much water
change in soil
change in seasons
too much sunlight
Answer:
change in seasons
Explanation:
Answer:
Change in seasons
Explanation:
The amount of daylight leaves get changes in the fall, and in response, the chlorophyll (makes the leaves appear green) breaks down to reveal the carotenoid (yellow/orange colors).