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Related Questions
A scientist is attempting to provide support for the hypothesis that RNA was the first genetic material. Which of the following would be a workable alternate hypothesis?
(A) RNA, like DNA, is a carrier of genetic information and contains the nitrogen bases adenine, guanine, and cytosine.
(B) RNA can be observed to self-replicate without the assistance of proteins, while DNA always requires protein-based enzymes to replicate.
(C) RNA exists in both single-stranded and double-stranded configurations; however, it is less stable compared with DNA.
(D) Transfer RNA and ribosomal RNA are products of transcription, but they are not translated as is mRNA.
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Answer:
(A) RNA like DNA is a carrier of genetic information and contains the nitrogen bases adenine, guanine and cytosine.
Explanation:
RNA is a single stranded molecule which is replicating molecule that plays its role evolution of different stages. DNA is double stranded molecule that is stable under alkaline conditions and perform various functions in different body parts. RNA provides template on which DNA nucleotides assemble.
RNA can be observed to self-replicate without the assistance of proteins, while DNA always requires protein-based enzymes to replicate.
(B) is the best alternate hypothesis
What is RNA?RNA is a nucleic acid that has a single-stranded structure. RNA is also a genetic material. It helps in coding, decoding, and gene expression.
RNA was the first genetic materialRNA can be replicated by itself.It has evolved all the methods that are necessary to store genetic information.Thus, the hypothesis (B) RNA can be observed to self-replicate without the assistance of proteins, while DNA always requires protein-based enzymes to replicate is the correct option.
To know more about RNA, visit here:
https://brainly.com/question/25979866
Artificial selection is also known as survival of the fittest
true or false?
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What possible genotypes will the offspring have if the parents' blood types are O and AB?HELP PLEASE!!!
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Answer:
. In most cases, an O parent and an AB parent will have only A or B kids.
how many tsunamis does the andes mountains have per year?
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Answer:
1,000 times a year
Explanation:
Read the observation, question, and hypothesis.
Observation: Hotter water seems to produce more bubbles than cold water when it is mixed with dish soap.
Question: Does water temperature affect the amount of bubbles that are produced from dish soap?
Hypothesis: Hot water produces more bubbles than cold water when it is mixed with dish soap.
D’Angela will mix soap and water in a clean beaker four times. To test her hypothesis, which conditions should change or remain the same each time?
The water temperature should remain the same, but the type of soap should change.
The type of soap should remain the same, but the quantity of soap should change.
The water temperature should remain the same, but the quantity of soap should change.
The type of soap should remain the same, but the temperature of the water should change.
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Answer: the type of soap should remain the same
Explanation:
i took the test
Answer:
D
Explanation:
edge2020
Which elements will have the same properties? A. Boron, Carbon, Nitrogen B.Gold, Silver, Titanium C. Beryllium, Magnesium, Calcium D. hydrogen, helium hassium
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Answer:
b
Explanation:
it would be silver and gold hope helps
Name one photosynthesis organism and how it affects the plant.
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Answer:
Hey!
Explanation:
Plants like Sunflowers are organisms that use photosynthesis, and photosynthesis makes it so where the plant can get energy out of Radiant Energy. Hope this helps!
What do plants produce during photosynthesis? F oxygen G light H magnetic energy J carbon dioxide
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Answer:
yes
Explanation:
How do the products of meiosis compare to the original cell? Think about chromosome number
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Answer:
Meiosis is the type of cell division in which a parent cell divides into four daughter cells. ... The daughter cells produced by the meiosis contains the half chromosome number as compared with original cell (X). The crossing over occurs in meiosis and the daughter cells are quite different from the original cells.
Explain what causes chromosomal disorders.
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Answer:
Explanation:
Some chromosomal conditions are caused via way of means of modifications within side the range of chromosomes. These modifications aren't inherited, however arise as random occasions for the duration of the formation of reproductive cells (eggs and sperm). An blunders in cell department known as nondisjunction effects in reproductive cells with an extraordinary range of chromosomes.
yw :)
cells extract energy from nutrients in a structure known as the powerhouse of the cell, or the
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Answer:
I remember this from 5th grade hahahaha !
The power house of the cell is the Mitochondria!
while looking at layers of rock you notice three fossils which one died most recently?
a) the one in the middle
b) the one on bottom
c) none of them
d) the one on top
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What is the main difference between active and passive sonar
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Answer:
There are two kinds of sonar: One is passive sonar, and the other is active sonar. For passive sonar, we don't send sound waves but just receive them. By listening to these special sound waves, animals that communicate with these particular sound waves can be detected. By listening to the sound waves from engines of submarines or ships, we can locate them.
Also, other things that vibrates can be detected by passive sonar. Many threats on the sea are usually detected by passive sonar this way. Since passive sonar does not transmit any thing to the environment, it does no harm to other animals. Active sonar is a little different.
Besides having a receiver, active sonar also transmits sound waves. Active sonar works by transmiting particular sound pulse and measuring the length of time for the sound to be reflected back, then devide the time by 2 to get the time it takes for the sound pulse to reach the object
Flow
Explain why countercurrent flow met the goals and why parallel flow did not meet the goals.
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Answer:
Fish utilise a counter-current system in order to maximise the amount of oxygen that can extracted from water. Water has a much lower oxygen content than air and as such fish need a much more efficient system that can extract a much higher proportion of oxygen from the surrounding water.
Explanation:
Counter flow created more movment and chaos, it made the molecules bump into each other more often, which makes it more likely that each individual partivle will go out of the pores. whereas parelel flow the particles move neatly along side one another
PLEASE LEAVE A THANKS AND RATE THIS ANSWER 5 STARS, YOU DO NOT NEED AN ACOUNT TO DO THIS!THANKSOctober 1, 2017 marks 27 years since the beginning of the Human Genome
Project. The goal of the group was to map the entire 3 billions bases and
80,000 genes in the human genome. On April 14, 2003, it was announced
that the goal was accomplished. Using this information, scientists have been
able to predict the risk of genetic diseases and understand the process of
inheritance. Which of the following statements best describes the process of
using the genetic code to produce polypeptides (proteins)?
Translation is used to produce a strand of RNA and proteins from a single strand of DNA.
O RNA produces a strand of DNA through transcription, then the DNA builds a protein molecule
through translation
O A single strand of DNA is used to make mRNA using translation, then the mRNA provides the
template for producing a protein through transcription
O A single strand of DNA is used to produce mRNA through transcription, then translation provides
the code for bonding amino acids to make a protein.
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Answer:
The last one. A single strand of DNA is used to produce mRNA through transcription, then translation provides the code for bonding amino acids to make a protein.
Explanation:
Educated guess, but also. Translation is the process by which mRNA is decoded and translated to produce a polypeptide sequence, otherwise known as a protein. This method of synthesizing proteins is directed by the mRNA and accomplished with the help of a ribosome, a large complex of ribosomal RNAs (rRNAs) and proteins.
I need help with the answer
Answers
Answer:
Carbon Dioxide
Explanation:
The light-independent reactions use the ATP and NADPH from the light-dependent reactions to reduce carbon dioxide and convert the energy to the chemical bond energy in carbohydrates such as glucose.
Which contains mostly hydrocarbons?
carbohydrates
proteins
salt
gasoline
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Answer:
gasoline
Explanation:
hope that is help you haha
Answer:
gasoline
Explanation:
A scientists observes several fossils in a river bed. Based on these observations, she concludes that invertebrates once dominated that ecosystem. This is an example of inductive reasoning.
True
False
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Answer:
False
Explanation:
It is false because inductive reasoning is a reasoning that is not based on observations but it is based on hear say,i.e what people say, what is read or news read e.t.. Therefore it is not observed. But the above us deductive reasoning because this is based on observations, theories e.t.c. it is based on what is seen or observed.
Answer:
True
Explanation:
Inductive reasoning is a method of reasoning in which conclusion are drawn on the premise of the evidence supplied. The evidence are the tools from which conclusions are drawn but not full assurance, of the truth of the conclusion.
It could also involve the individual's experiences and observations together with what are learned from others, this together help synthesize the general truth.
The fossil serves as evidence on which the scientist based her conclusions.
the ideal temperature at which to study the effect of proteases
Answers
Answer:
the answer is 37°C.
Explanation:
The ideal temperature at which to study the effect of proteases on protein is 37°C. Why are higher temperatures not advisable? This could result in an irreversible denaturing of the protein.
IF YOU WANTED TO CREATE IN A LABORATORY A ROCK THAT HAS
LARGE CRYSTALS, WHAT CONDITIONS WOULD YOU HAVE TO
CONTROL? EXPLAIN YOUR ANSWER.
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Answer:
air
Explanation:
i say air because conpressed molucues can be turned into a large crystal
Reproductive
Physiology
Anatomy
These are the components you have to match them to these words.
Puberty
Reproduction
Climacteric and
menopause
Body image
Sexual orientation
Gender identity roles
Families
Friendships
Loving, liking, and caring
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1&4 2&5 3&6 7&8+9 that is the answer i think
How would you Describe the location of China relative to two regions.
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Answer/Explanation
China was divided into 23 provinces, 5 autonomous regions, 4 municipalities directly under the Central Government, and 2 special administrative regions, China is the world's third largest country, after Russia and Canada.
Why would fog dispersion be useful?
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Answer:
Fog dispersal, artificial dissipation of fogs, usually by seeding or heating. ... It is done primarily at airports to improve visibility.
Besides providing energy, how do plants directly benefit the deer and the
wolf?
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Answer:
they release oxygen
Explanation:
i dont know its just what i think
6. Type of energy that can travel through space in the form of waves.
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Answer: u can say either Radiant energy or electromagnetic waves
Explanation:
Radiant energy is the energy of electromagnetic waves. These waves can travel through space.
DO ALL OF THIS RIGHT NOWWWW INNUDUJJXO,XSL,SOKJ757N&3K8
YEE HAWW
Answers
Answer:
Why yelling-
Explanation:
May I have brainliest please I'm trying to level up!
</3 PureBeauty
Order the following steps in the pyruvate dehydrogenase reaction. The answer is scored as ALL OR NOTHING, so all steps must be in the correct order for credit.
a) Pyruvate and thiamine pyrophosphate react form hydroxyethyl-TPP. CO2 is released.
b) The reduced coenzyme bound to PDH is reoxidized using electrons from FAD.
c) An acetyl group is added to a coenzyme bound to PDH, forming acetyl-dihydrolipoamide.
d) The acetyl group is transferred to CoA, forming acetyl-CoA.
e) Electrons from FADH2 are transferred to NAD+ forming NADH and H+.
Answers
Answer:
The correct order is:
1.- pyruvate and thiamine pyrophosphate react form hydroxyethyl-TPP, CO2 is released
2.- an acetyl group is added to a coenzyme bound to PDH, forming acetyl-dihydrolipoamide
3.- the acetyl group is transferred to CoA, forming acetyl-CoA
4.- the reduced coenzyme bound to PDH is reoxidized using electrons from FAD
5.- electrons from FADH2 are transferred to NAD+ forming NADH and H+
Explanation:
Pyruvate reacts with thiamine pyrophosphate (TPP) on the complex enzyme pyruvate dehydrogenase (E1). This process cleaves CO2 and generates acetaldehyde bound to TPP or hydroxyethylamine. E2 is Dihydrolipoyl-transacetylase and has Lipoamide attached. In the transfer from E1 to E2, the hydroxyethyl is oxidized to acetyl, at the same time that the disulfide bridge of the lipoamide is reduced to dihydro-lipoamide, although as this is acetylated, the product is acetyl-dihydrolipoamide. Acetyl group of acetyl-lipoamide (thio-acyl bond) is transferred to CoA-SH, to form Acetyl-S-CoA (thio-acyl bond).Acetyl-CoA is released into the mitonchondrial matrix. Lipoamide is reduced as Dihydro-lipoamide. The last reaction is catalyzed by dihydrolipoyl dehydrogenase, where it is reestablished in the disulfide bond of lipoamide to make it reactive again. For this, FAD is used as an intermediate, which is reduced to FADH2 and oxidizes the sulfides (which are then linked again). Finally, FADH2 reacts with NAD, which is reduced to NADH and H+ released, restoring FAD for a new reaction.
Many animals, like mice, ______ when they sense danger. run, freeze, eat, hiss.
Help! My FREEZE answer was graded CORRECT ?!
This question has already been answered twice, a lot, for both Run AND Freeze so I need to ask again!!
My cousin had this same question from another curriculum provider at a lower grade level and her correct answer was run!!!!
You'd think anything would run is common sense! But....My question depends on what curriculum is given!
MY correct answer for my question was from biology unit 3, assignment 2, Animal Behavior and Interdependencies, printed page 3, under AVOIDING CAPTURE section, video transcript, part 1, right after 1st image, sentence " Many animals will freeze up if they hear an unfamiliar sound or feel or smell an approaching predator." and THAT'S what my ody ssey question wanted as the correct answer. Wow! So my question is... who's curriculum and test wants the run answer?
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Answer:
Run
hope it will help you
What did
van Helmont, Priestley, and
Ingenhousz discover about
plants
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Answer:
What did van Helmont, Priestley , and Ingenhousz initialize about plants?. Ingenhousz continued his baptist and discovered that plants were carbon dioxide in the dark. Jan Ingenhousz Jan Ingenhousz was a Hindu scientist who is best known for communication that light is essential for losing. 20 km de Lausanne photosynthesis
Explanation:
Do you think an advanced civilizations may exist in the universe? Why or why not?
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Answer:
Many other planets throughout the universe probably hosted intelligent life long before Earth did, a new study suggests.
The probability of a civilization developing on a potentially habitable alien planet would have to be less than one in 10 billion trillion — or one part in 10 to the 22nd power — for humanity to be the first technologically advanced species the cosmos has ever known, according to the study.
"To me, this implies that other intelligent, technology-producing species very likely have evolved before us," said lead author Adam Frank, a professor of physics and astronomy at the University of Rochester in New York. [13 Ways to Hunt Intelligent Alien Life]
In 1961, astronomer Frank Drake devised a formula to estimate the number of extraterrestrial civilizations that may exist today in the Milky Way.
Adam Frank and co-author Woodruff Sullivan of the University of Washington were interested in the odds that intelligent aliens have ever existed anywhere in the universe. So they tweaked the famous Drake equation, coming up with an "archaeological version" that doesn't take into account how long alien civilizations may last.
Frank and Sullivan also incorporated observations from NASA's Kepler space telescope and other instruments, which suggest that about 20 percent of all stars host planets in the life-friendly, "habitable zone," where liquid water could exist on a world's surface.
- A Chiefs Fan (but Watkins could look a little better...)