Explanation:
Introduction
Our modern understanding of DNA role in heredity has led to a variety of practical applications, including forensic analysis, paternity testing, and genetic screening. Thanks to these wide-ranging uses, today many people have at least a basic awareness of DNA.
It may be surprising, then, to realize that less than a century ago, even the best-educated members of the scientific community did not know that DNA was the hereditary material!
In this article, we'll look at some of the classic experiments that led to the identification of DNA as the carrier of genetic information.
Protein vs. DNA
The work of Gregor Mendel showed that traits (such as flower colors in pea plants) were not inherited directly, but rather, were specified by genes passed on from parents to offspring. The work of additional scientists around the turn of the 20th century, including Theodor Bovari, Walter Sutton, and Thomas Hunt Morgan, established that Mendel's heritable factors were most likely carried on chromosomes.
Scientists first thought that proteins, which are found in chromosomes along with DNA, would turn out to be the sought-after genetic material. Proteins were known to have diverse amino acid sequences, while DNA was thought to be a boring, repetitive polymer, due in part to an incorrect (but popular) model of its structure and composition1
start superscript, 1, end superscript.
Today, we know that DNA is not actually repetitive and can carry large amounts of information, as discussed further in the article on discovery of DNA structure. But how did scientists first come to realize that "boring" DNA might actually be the genetic material?
Plants and snails gizmo ( HELP ASAP)
Answer:
88
Explanation:
866666
Many pine trees grow in the taiga, the largest habitat in the world. Using incredible sources such as nasa research the typical climate conditions in the taiga. Explain why the structure of pine cones helps ensure successful reproduction in the taiga
Answer:
Hard structure of cones protects reproductive parts of pine trees.
Explanation:
The structure of pine cones helps in successful reproduction in the taiga because in pine trees both male and female reproductive parts are present on the same tree that leads to successful reproduction and production of seeds. The pollen from the male cone fall onto the female cone that produces seeds after fertilization process. The structure of cones are hard that protects the male and female reproductive part in that environment.
Which of the following pairs a land cover with its most appropriate use
Can you please include the pairs?
Are large organisms such as redwood trees and elephant large because they contain extra large cells or just more standard size cells?
Answer:
more standard sized cells
If a branch bearing sweet seedless oranges is grafted to a branch of an orange tree bearing sour seeded oranges, what type of oranges will the grafted branch produce?
Is this an example of natural or artificial vegetative propagation? (Explain)
Answer:
i would say natural because the branches grafted together they weren't made to go together by a human
Explanation:
How do H-R diagrams help scientists compare new stars with the Sun? In your answer, name one type of data that H-R diagrams do not show.
Answer: Hertzsprung-Russell (HR) diagram is an essential tool used in stellar evolution. In the universe, there are several hundreds of billions of stars. Scientists use the tool, in differentiation, the billions of stars in the world from the sun. In the HR tool, there plotting of the luminosity or energy output of a star, which is plotted on the X-axis of a graph against the absolute magnitude. The sun's magnitude is an absolute of +48, which, when plotted against its luminosity, helps in setting an apparent variance between the sun and any other star. Additionally, the sun has been identified as the primary star with a very high temperature. Hence the tool can locate the sun from other forms of stars. HR diagrams outline data such as temperature and luminosity or energy. However, star distance from the Erath is not a type of data represented in the charts.
Explanation: If you want to read it you can open the picture below.
↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓
Pagel Pieces
Puzzle Pieces
Page 2 Pieces
6CO2
Carbon
Dioxide
J
All the time
Plant
cell
6CO2
6H20
602
Joxygen
Carban
Dioxide
Water
K
Chloroplast
Energy
Stored
CHO
6H2O
ATP
Energy
Water
Sunlight
D
E
Mitochondrion
02
Animal & Plant
cell
Energy
Released
C.H.O.
CHUO
60
CH₂O
Sugar
Oxyge.
Sugar
2017 math in. Demand
Answer:
I wish I could help I do
Explanation:
i am not doing that stuff so lets me know if you figure it out
Identify which statements are correct. A. All bacteria have peptidoglycan in their cell walls. B. All fungi have chitin in their cell walls. C. All algae have cellulose in their cell walls D. All protozoans have protein in their cell walls.
Answer:
A. All bacteria have peptidoglycan in their cell walls. B. All fungi have chitin in their cell walls. C. All algae have cellulose in their cell walls
Explanation:
The cell wall of a bacteria has peptidoglycan. Peptidoglycan is the basic unit of the bacteria cell wall, it makes the cell wall strong, and determines the cell form.
The cell wall of a fungi contain chitin. Chitin makes the cell wall strong, and rigid.
The cell wall of an algae has cellulose. The cellulose helps to provide rigidity and in maintaining the shape of the cell walls of the algae.
A one-year simulation is run with the settings shown below. The resulting yield was 6.6 tons per hectare, or 44% of the maximum yield. What is the most likely cause for the poor yield?
Answer: The corn plants were damaged by the herbicide.
Explanation
Depending upon the plant affected and the herbicide used, effects of herbicide damage differ. Popular signs include flattened stems or twisting or corkscrewing. Leaves can have shapes, sizes or textures that are irregular. Moreover, yellow or reddened leaves or leaf veins may. This usually leads to loss in crops as noticed from the maize plantation where more than half was lost.
The most plausible explanation of the low yield would be herbicide harm to the maize plants.
Herbicide
Herbicide damage has different consequences it depends on the plant as well as the herbicide employed. Ground down stems, twirling as well as rotating clockwise are popular symptoms.
Leaves could have varied forms, dimensions, and properties. Furthermore, yellow or reddish leaves especially leaf veins are possible. This frequently results in crop losses, as seen in the maize plantations, where more than half of the harvest was destroyed.
Thus the response above is correct.
Find out more information about herbicide here:
https://brainly.com/question/25467483
A cat standing near a pond looking at the fish in water. Which of the following statement is correct?
Оа
b
It depends upon the clarity of the pond water.
The fish appears to the cat at the right depth
The fish appears nearer to the cat than it really is
The fish appears farther to the cat than it really is
Ос
d
4. A type B woman whose mother was type O marries a type O man. What will be the
possible genotypes and phenotypes of their children?
Macromolecules inside of foods can be large polymers or small monomers
How do these molecules from food get built into polymers and broken down into monomers in our bodies
Explanation:
Most macromolecules are made from single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers. In doing so, monomers release water molecules as byproducts
Please Help
(Didn’t find science so I put biology for subject)
Answer:
They are crossing each other because when there is an earthquake this happens.
Explanation:
Look at the pic
The esophagus is a tube in which food is pushed from the mouth to the stomach. As the food is pushed through the esophagus, it becomes more compact. This is —
A.
a chemical change, only.
B.
a physical change, only.
C.
both a chemical and a physical change.
D.
neither a chemical nor physical change.
melanie completes a long distant run at an average speed of 6 mph. if it takes her 3 hours, how far did she run ?
Answer:
18 miles
Explanation:
6*3=18
What is the name of an an exact copy of a DNA segment?
Answer:
DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.
Explanation:
please mark me as branlist
A cat standing near a pond looking at the fish in water. Which of the following statement is correct?
Оа
b
It depends upon the clarity of the pond water.
The fish appears to the cat at the right depth
The fish appears nearer to the cat than it really is
The fish appears farther to the cat than it really is
Ос
d
Answer:
The fish appears nearer to the cat than it really is
Explanation:
The situation above is related to the refraction of light. The cat will think that the fish is closer to him, however, it is actually at a different depth in its actual position. This is because of the refraction of light as it travels in two different mediums: water and air. The eyes and brains are not capable of tracing the light rays' refraction, thus, the cat's image of the fish is on a shallower depth. In reality, the light rays reflecting from the fish are actually being refracted on the water's surface.
why does mercury have such a dramatic different temperatures during the day and night
Answer:
Mercury rotates slowly and has a thin atmosphere, and consequently, the night-side temperature can be more than 1,000 degrees Fahrenheit lower than the day-side temperature shown on the diagram. It can be as cold as -290 degrees Fahrenheit (-179 degrees Celsius) on Mercury at night.
Explanation:
Answer:
due to its rotation and lack of atmosphere
Explanation:
during the day the temperature is so high that it could melt some metals and during the night the temperature drops well below freezing.
CAN SOMEONE HELP ME WITH THIS? YOU HAVE TO Transcribe and translate the following DNA sequences. plz help
To solve this you should know that Adenine(A) pairs with Thymine(T), but in RNA thymine is replaced with Uracil(U) and Guanine(G) pairs with Cytosine(C).
The codon, present in the mRNA represents a group of three letters that is complementary to the DNA strand. The codon is a result of transcription. The anticodon is present in tRNA, the structure that transports amino acids to the protein synthesis site(ribosome) during translation. The anticodon is complementary to the codon.
It's pretty easy to interpret the codon table as the first, second and third letters are indicated.
What is the definition of “migrate” as used in the following sentence?
Similar to mitosis, the centrioles migrate away from one another and both the nuclear envelope and nucleoli break down
A. Travel aboard
B. Physically move
C. Break apart
D. Repel each other
Answer:
It's physically move
Explanation:
got the wrong answer because of the previous answer
Please help ASAP please, I can't answer these question.
3 benefits that will occur if Sea walnuta is removed.
Answer:
1. There will be no High Cost of construction and maintenance.
2. Some designs of these sea walls might be unattractive.
3. natural processes can take place ... for eg. habitat migration.
Which body system is not directly connected to itself?
O respiratory
O circulatory
O endocrine
Answer:
0 endocrineExplanation:
I hope it helps ❤❤Name 3 forms of solid precipitation:
Answer:
Hail, Sleet, Snow
Explanation:
Hope this helps!
Question 4 of 10 What is a water molecule made of? O A. One hydrogen atom and two oxygen atoms O B. One carbon atom and two oxygen atoms O C. One oxygen atom and two hydrogen atoms D. One carbon atom and four hydrogen atoms SUE
Answer:
A water molecule has three atoms: two hydrogen (H) atoms and one oxygen (O) atom.
Explanation:
i hope this help if it didnt message me and ask me again for help
Stars B,C,D and E are probably?
How an improvement in apparatus allows for a greater understanding of cell structure
Answer:
In 1931, the electron microscope allowed cells to be viewed under a better resolution.
Explanation:
2.) What clues were found to support that all animal life on land, once came from animals living in the ocean?
Answer: Fossils of fish are found under the land where cows now live. Fossils give clues about environmental changes where the organisms lived
Explanation:
Which statement is an accurate description of genes?
1
Proteins are made of genes and code for DNA.
2.
Genes are made of proteins that code for nitrogen bases.
3.
DNA is made of carbohydrates that code for genes.
4.
Genes are made of DNA and code for proteins.
Answer:
An accurate description of genes is that genes are made of DNA and code for proteins.
Explanation:
Genes are the molecules responsible for containing the genetic information that determines specific characteristics or features of an individual. Genes are housed in chromosomes, in specific locations called locus.
A DNA molecule forms a chromosome, and fragments of that same molecule form the genes on that chromosome. The information contained in each gene codes the synthesis of proteins, as well as the synthesis of RNA.
The other options are not correct because:
1. Proteins are not made of genes, but of amino acids, and they do not code for DNA.
2. Genes are not made of proteins, but of DNA fragments.
3. DNA is not made of carbohydrates.
Answer:
Genes are made of proteins that code for nitrogen bases.
What piece of evidence supports the viral model presented in Viewpoint #2 that viruses are non-living?
Answer:
b. viruses do not undergo mitosis
Explanation:
One characteristics of non-living things is their ability to reproduce. Viruses on their own lack this ability to reproduce their kind. Mitosis is a form of reproduction where one cell divides to form two daughter cells. Viruses do not undergo mitosis.
Viruses are just an assembly of biochemical particles that need to gain entrance into a living cell to be able to multiply.
What does the letter A represent on diagram