Which timeline shows the correct order of contributions made to the discovery of DNA?
(Options are in screenshots below!)
Answers
Answer:
The correct answer is B.
Explanation:
DNA was discovered in 1800, and then scientists studied DNA with X-Rays. After a while, scientists published a 3D model of DNA, and shortly after, scientists decoded DNA genes. So the answer is Option B.
Hopefully, this helps! :D
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In the 1800s first the discovery of DNA was done, than the X-ray study of the DNA was done, after that the 3-D model of the DNA was developed, and finally human genetic code was decoded in the 1960s.
• The DNA was initially identified in the late 1860s by Friedrich Meischer, a Swiss chemist.
• After that Rosalind Franklin and Wilkins studied DNA with the help of X-ray diffraction tool.
• In the 1953s, the 3D model of the DNA molecule was discovered by Watson and Crick.
• Finally in the 1960s, Nirenberg and his colleagues at the National Institutes of Health deciphered the human genetic code.
Thus, the second timeline shows the correct order of contributions made to the discovery of DNA.
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Related Questions
Groundwater is found in pores of soil and rock,
O True
O False
Answers
Answer:
true
Explanation:
Can someone help me please
Answers
456 Explanation:
...
Match the following vocabulary words with the correct definitions.
1. green pigment needed for photosynthesis
chlorophyll
2. plant-like organism without chlorophyll
community
3. water falling from the atmosphere
habitat
4. place where an organism naturally lives
transpiration
5. water released into the atmosphere through stomata
precipitation
6. group of organisms living in the same area
fungi
Answers
Chlorophyll is the green pigment needed for photosynthesis and precipitation is the water released into the atmosphere through stomata.
What is the role of chlorophyll?Chlorophyll is vital for photosynthesis, which allows plants to absorb energy from light. Chlorophyll molecules are specifically arranged in and around photosystems that are embedded in the thylakoid membranes of chloroplasts.
Chloroplast has a structure called chlorophyll which functions by trapping the solar energy and is used for the synthesis of food in all green plants. Produces NADPH and molecular oxygen (O2) by photolysis of water.
Chlorophyll absorbs the light energy required to convert carbon dioxide and water into glucose. It is found within chloroplasts in cells exposed to light. Chlorophyll is green - so absorbs the red and blue parts of the electromagnetic spectrum.
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#SPJ1
i’m tired of school and hate it and have no idea what i’m learning i don’t have any motivation on learning that and i cheat so whats the point it’s useless anyways also i’m behind and wanna drop out i’m not trying to go to hell bc of school
Answers
Answer:
Explanation:
dont worry and dont loose hope
u can start to love ur school
just pay attention to what the teacher is teaching for one day and then the next day answer the questions that ur teacher asks. Then if she appreciates u, u feel good and start loving school. Ask ur parents and ur friends to motivate u. Try not to cheat in exams. U get good marks and then everyone will be happy. dOnt ever think of dropping out.
Thats all i can say
Which statement BEST explains why few plants grow on a tropical rain forest floor?
A.pollution
B.climate change
C.habitat destruction
D.tectonic plate motion
Answers
Answer:
c
is correct!
Describe how radiocarbon dating method is used to find the absolute age of a fossil?
Answers
Answer:
Radiocarbon dating involves finding the age of an ancient fossil by measuring its carbon-14 content. Carbon-14 (radiocarbon), is a naturally occurring radioactive isotope that forms when cosmic rays in the upper atmosphere strike nitrogen molecules, which then oxidize to become carbon dioxide.
What differs Flood from Flash Flood then? Explain your answer concisely.
Answers
Floods and flash flooding Now is the time to determine your area's flood risk. ... Flash floods have a rapid hydrological response in catchments with short lag times, ... Two different types of flood hazard assessment methods were tested: (i) a ... elongation ratio and roughness index can be used to explain the flash flood types.
Answer:
Flooding is an overflowing of water onto land that is normally dry. Floods can happen during heavy rains, when ocean waves come on shore, when snow melts quickly, or when dams or levees break. Damaging flooding may happen with only a few inches of water, or it may cover a house to the rooftop. A flash flood is = A flood caused by heavy or excessive rainfall in a short period of time, generally less than 6 hours. Flash floods are usually characterized by raging torrents after heavy rains that rip through river beds, urban streets, or mountain canyons sweeping everything before them.
Explanation:
i new the first on the top of my head but the second on was on google mabye this would help.
What type of protein helps molecules move through a
cell membrane?
Answers
Answer:
Gated Channel protein
Explanation:
Answer:
Water channel proteins are helps the molecules move through a cell membrane.
Explanation:
this protein acts like a pore in the membrane that lets water molecules or small ions through quickly. This proteins (aquaporins) allow water to diffuse across the membrane at a very fast rate. Ion channel proteins allow ions to diffuse across the membrane.
Which of the following is equal to inputs? products products reactants reactants reactions reactions yield yield
Answers
Answer:
c
Explanation:
A mineral forms from water at the edge of a lake.
PLEASE ANSWER I ONLY HAVE 2 MINS LEFT
Which statement best describes this mineral?
The mineral formed from lava.
The mineral formed through evaporation.
The mineral formed when hot water cooled.
The mineral crystallized from magma.
Answers
Answer: B) The mineral formed through evaporation!
Hope this helps!!! :)
I added a picture it’s simple plz help
Answers
Answer:
The higher the density, the more closely packed the particles called atoms and molecules. The lower the density the more spaced muy the particles are
If density = mass divided by volume, than the more volume a material has the less dense it is. For example, if there are five people in a room that is 5ft. by 5ft. the people will be tightly packed together and more dense. If those same five people were in a room that is 20ft. by 20ft. they would have more space and it would not be as dense in the room.
Which of these layers is the deepest?
A. O horizon
B. A horizon
C. C horizon
D. B horizon
Answers
Answer: C) C horizon
Hope this helps!! :D
Plz answer quick 20 points! WILL GIVE BRAINIEST! Answer correctly! 2 questions!!!!
Answers
Answer:
I think both of them are C
Explanation:
I’m sorry if I get one wrong I was trying to be quick about it
Please Help
Which type of transport moves waste or very important products out of the cell? Question 8 options:
A. Endocytosis
B. Diffusion
C. Carrier Protein (Pump)
D. Transport
Answers
Answer: Duffusion B. Hope this Helps bro
Explanation:
Help! The is a question about enzymes.
Answers
ans is no 3
Explanation:
If the gametes produced by a given organism contain 6 chromosomes, how many chromosomes are found in that organism’s body cells
Answers
Answer:
I think 6
Explanation:
Answer:
The answer is 12
Explanation:
hope this helps
What did the scientists disagree on and why
Answers
Answer:
Could you explain more?
Explanation:
Answer:
Scientists disagree on the experiments because
they all have different answers and they can't decide which one to
do so they disagree.
Explanation:
I know this because I am the goodest at science PLEASE MARK ME AS YOUR BRAINLEST!!!
PLEASE ANSWER WILL GIVE OUT BRAINLIEST!
Answers
Answer: I'm willing to help but, I can't see the screenshot.
Jackson says, “The really scary things though are the physical, chemical, oceanographic things that are happening.” What does he mean by this?
Answers
Oceanography includes the oceans and sea depicting and analysis or change in the characteristics of water bodies.
By the statement, scary things are happening to the oceans by Jackson means that:
The oceans and aquatic lives are suffering from climatic changes and is undergoing immense physical and chemical changes.
The addition of unwanted wastes, dumps and chemical spills in oceanic bodies are altering the chemical and physical attributes of the water. The habitants of water like fauna and flora are suffering a lot of loss due to changes.
The involvement of human activities has increased water pollution and many other kinds of pollution. Overfishing, oil spills and dumping of waste in water bodies have altered the natural characteristics of water.
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Radiant energy is made up of electromagnetic waves. True or False?
Answers
Answer:
raidiant energy is the energy of electromagnetic waves
Which best describes how a plant cell divides
Answers
Which of the following can upset the balance of an ecosystem?
too much water
not enough water
too much light
not enough light
all of the above
none of the above
Answers
Answer:
All of the above.
Explanation:
all four of those situations can cause plants to die and animals with it. Without plants, herbivores will not have food and either die or leave, and without herbivores, carnivores will face the same situation.
Matter (water, glucose, proteins, etc.) can move into a cell.
True
False
Answers
Answer:
True because googe says it can move in and out of cells
Explanation:
Answer:
true
Explanation:
Very small polar molecules, such as water, can cross via simple diffusion due to their small size. ... To resolve this, a specialized carrier protein called the glucose transporter will transfer glucose molecules into the cell to facilitate its inward diffusion.
3.1 The Cell Membrane – Anatomy and Physiology
The ATP molecule can be considered a form of chemical energy because
It stores the energy from the glucose in the bonds between the phosphate groups
It has a five-carbon sugar like RNA
It takes in light energy from the sun
It is a form of fat
Answers
Answer: The correct answer is A) It stores the energy from the glucose in the bonds between the phosphate groups.
Hope this helped!!! :)
Answer:
The correct answer is It stores the energy from the glucose in the bonds between the phosphate groups. :)
Explanation:
The mother has long fur:
(FF)
F= long fur
The father does not have long fur:
(ff)
f=short fur
Answers
Answer:
are you looking for a pedigree, or a square pedigree?
Explanation:
what is the income source obtained from silk worm?
Answers
Answer:
silk
Explanation:
Changes in inherited characteristics can cause a species to change into a new one. This change over time is called?
Answers
Answer:
Evolution
Explanation:
Evolution is the change in the inherited traits of a population from generation to generation. Mutations in these genes can produce new or altered traits, resulting in heritable differences (genetic variation) between organisms.
Help please:
What makes up cell membranes and is used to create hormones?
A. Starch
B. Hydrocarbon
C. Glucose
D. Cholesterol
All biomolecules have the following traits except:
A. a carbon backbone.
B. covalent bonds.
C. hydrogen elements.
D. nitrogen elements.
Which soil-based compounds do plants use to create amino acids from glucose?
A. carbon
B. fluoride
C. hydrogen
D. nitrogen
Answers
Answer:
Cholesterol
Nitrogen elements
nitrogen
100% correct
Explanation:
The other two answers on this assessment are amylase and Cholesterol again
Biomolecules are those molecules produced in the body which are useful for life functions. They often consist of carbon, nitrogen and oxygen.
The correct answers to each question are listed below;
1) The correct answer is option D: Cholesterol
2) The correct answer is option D: Nitrogen elements
3) The correct answer is option D:Nitrogen
Biomolecules are quite necessary for the perpetuation of life processes.
Living organisms are composed of diverse substances of biological importance called biomolecules.
Many biomolecules contain carbon, hydrogen and oxygen.
Nitrogen is very important in making amino acids because amino acids must contain nitrogen.
Cholesterol is found in the cell membrane. It is very important in building the cell membrane as well as the formation of several hormones.
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What are some examples of producers that are classified as phytoplankton?
Answers
Answer:
Some phytoplankton are bacteria, some are protists, and most are single-celled plants. Among the common kinds are cyanobacteria, silica-encased diatoms, dinoflagellates, green algae, and chalk-coated coccolithophores.
Explanation:
ANSWER THIS FAST FOR ME!!!
Answers
Answer:
Option A.) 22; 4
Explanation:
