Answer: X-rays
double helix
Wilkins and Franklin studied the structure of DNA using X-rays, a technique to examine molecules, and helped Watson and Crick determined that the shape of the molecule was a double helix.
What are the functions of DNA?Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix. The polymer carries genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses.
DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins.
DNA is essential for inheritance, coding for proteins, and providing instructions for life and its processes. DNA dictates how a human or animal develops and reproduces, and eventually dies.
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what will happen to biodiversity as more farms are made
Answer:
Farming affects biodiversity as it needs space and chemicals.
Explanation:
Farming requires space, so it firstly contributes in the habitat loss of many plants and animals species that were already present there. Then seeds are sown to grow the desired
You have discovered the fossil remains of three organisms. One is
mammalian, one is reptilian, and the third has both mammalian and
reptilian characteristics. What techniques could you apply to
determine possible relationships among these organisms?
Answer:
Explanation:
These "missing links" demonstrate the evolution of traits within groups as well as the ... You have discovered the 5. fossil remains of three organisms. One is mammalian, one is reptilian, and the third has both mammalian and reptilian features. What techniques could you apply to determine possible relation- ships a
The methods which are used for determination of the possible relationships among the given organisms is by comparative anatomy, DNA sequence analysis and protein comparison.
What is comparative anatomy?The study of the body structures of different species of animals to understand the adaptive changes in them during evolution from common ancestors is referred to as comparative anatomy.
The methods which are used for determination of the possible relationships among the given organisms is by comparative anatomy, DNA sequence analysis and protein comparison.
Thus, using these techniques one can determine possible relationships among these organisms.
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which level of organization does the neuron belong in
Answer:
CELL
Explanation:
Discuss TWO ways in which some cultural views that exist may affect
a relationship negatively
(
Culture can introduce strains in a relationship.
What are cultural views?The term culture is regarded as the totality of the way of life of a people. Civilizations are rooted in the culture of the people this is why whole societies can never be alienated from their culture.
However, where there is a disparity in cultural orientation;
A relationship is prone to misunderstanding as people will approach matter from different perspectives.Their is an increased chance of alienation of different groups due to cultural bias.Hence culture can introduce strains in a relationship.
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what do you know about energy and cells?
Answer:
Cells do not use the energy from oxidation reactions as soon as it is released. Instead, they convert it into small, energy-rich molecules such as ATP and nicotinamide adenine dinucleotide (NADH), which can be used throughout the cell to power metabolism and construct new cellular components.
PLEASE HELP!!!!!!
1. If your child had a child with a man with sickle cell disease, predict whether that child
would also have sickle cell disease. Explain the reasoning and describe the information
you used to make your prediction.
Answer:
Sickle cell disease (SCD) is a blood disorder that a child is born with. It's passed down through a parent’s genes. Children with SCD make an abnormal type of hemoglobin. This is the protein in red blood cells that carries oxygen to all parts of the body. With SCD, the body organs and tissues don’t get enough oxygen.
Explanation:
Healthy red blood cells with normal hemoglobin are round and move easily through blood vessels. When a child has SCD, the red blood cells are hard and sticky. They are shaped like the letter C (and like a farm tool called a sickle). These damaged red blood cells (sickle cells) clump together. They can’t move easily through the blood vessels. They get stuck in small blood vessels and block blood flow. This blockage can cause pain. It can also damage major organs.
Sickle cells die sooner than healthy cells. Normally the spleen helps filter infections out of the blood. But sickle cells get stuck in this filter and die. Having fewer healthy red blood cells causes anemia. The sickle cells can also damage the spleen. Without a healthy spleen, children are more at risk for serious infections.
There are several complex types of the sickle cell gene. Some don’t cause symptoms or severe problems, but others do. Talk to your child’s healthcare provider about the specific form of sickle cell your child has.
Most children with SCD will start showing symptoms during the first year, often around 5 months.
Answer:
IN my opinion I dont really thinkthe child would have ssickle cell because the mother or father dont have it, its only one part of its family have it but if the one part of its family sickle cell jeans is storng thn yes the child may get it .
Explanation:
All of the major components of the light reactions, including the pigment molecules
clustered in photosystems I and II, are located in the thylakoid membrane. What is the advantage of
having these components confined to the same membrane rather than dissolved in the stroma or the
cytosol/cytoplasm? Explain your argument. (up to 5 points)
Answer:
Having the light reaction components in close proximity speeds up the process. Electrons move from one protein to the next in sequence. If the proteins had to 'swim' around to find the next part of the electron transport chain, then the ATP would form at a much slower, inefficient rate.
12. Grassland biomes have all of the following EXCEPT ______
A. grass for grazing animals
B. wet season
C. slight temperature range D. wheat fields
13. Deserts have all of the following EXCEPT
A. little rainfall
B. little wind
C. soil with little organic matter D. few large animals
Answer:
12. C. slight temperature range
13. B. little wind
Explanation:
Grassland biomes do not have a slight temperature range, they have a large one. It could be very hot in the day time but then quite cold at night.
Deserts do not have little winds blowing across them. These winds are usually strong and dry. The sand dunes in deserts were formed by these winds as they pick up sand particles and carry it to another area.
Drag the tiles to the correct boxes to complete the pairs. Match the descriptions to the correct type of fungi. has positive and negative mating strands has erect fruiting body the first fungi to evolve lives in a varied habitat and exhibits all forms of nutrition chytrid arrowRight common mold arrowRight sac fungi arrowRight club fungi arrowRight
Answer:
Fungi are unicellular or multicellular eukaryotic organisms that are dependent for their energy and food on dead organic material or other organisms. These organisms produce by both sexual and asexual reproduction.
1. club fungi show a bipolar mating system as they have positive and negative mating strands.
2. sac fungi have an erect fruiting body filled with asci.
3. The chytrids have a cell wall of chitin, a flagellum, absorptive structures for nutrition therefore have a lineage.
4. The common molds grow in the form of hyphae and shows all for of nutrition and live in every possible habitate.
hope this helps you! :)
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When does DNA replication occur (DNA makes copies of itself) in
the Cell Cycle? Choose 2 answer choices
Why do we only see four trophic levels in most food webs?
Answer:
Usually there's not enough energy left to support any additional levels.
Dentro de las Cadenas Tróficas, existen otros tipos de organismos que se alimentan de fuentes derivadas, sea de las Plantas o de los Animales, ¿cuáles son?
Answer:
Los detritívoros
Explanation:
Los detritívoros son organismos que se alimentan tanto de plantas como de animales en descomposición (detritos). Los organismos detritívoros representan un componente fundamental de los ecosistemas ya que de ellos depende el reciclaje de nutrientes en los ciclos biogeoquímicos. Los detritívoros incluyen bacterias (por ej., bacterias nitrificantes claves en el ciclo del nitrógeno), animales (por ej., la cochinilla de la humedad, lombrices, etc) y hongos saprófitos (por ej., Fomitopsis pinicola, Fomes fomentarius, los cuales crecen sobre la madera y/o sus restos). Los detritívoros se encuentran en todos los tipos de ecosistemas y tienen un rol fundamental en la cadenas trófica mediante su activa participación en los ciclos biogeoquímicos, especialmente en el ciclo del nitrógeno.
Which of the following statements is true?
OA. Chromosomes make up proteins.
OB. Genes make up cells.
OC. Chromosomes make up genes.
OD.
Genes make up chromosomes.
Where in the cell is dna copied into rna? Cytoplasm or the nucleus
Answer:
nucleus
Explanation:
*please mark brainliest *
What do these questions mean ? WILL GIVE BRAINLIEST :) pls give an example or answer
Answer:
There must be another half but if there isn't its asking what about that animal what it is and the development and diversification of the animal
Capital M = Melanin, darker skin color Capital N = No Melanin, lighter skin color Imagine the following couple; NN NN NN (female) x NN MN NN (male) 13. Give the phenotypes for these parents. Female: lightest skin color Male: dark skin 14. a. What is the genotype of the darkest child they could have? b. What are the odds of producing such a child? Show your math: 14 - MNMNMN -middle brown skin 15. a. What is the genotype of the lightest child they could have? b. What are the odds of producing such a child? 16. What are the odds of having a child that is heterozygous for all three genes?
What would be on the gag reel of your life? ...
Answer: everything
Explanation:
Answer:
Everytime i've had a total brain fart in public
Explanation:
When a sperm and egg combine, it is called _______________________________
Fertilization
Explanation:
When a sperm and egg combine, it is called fertilization.
Answer:
fertilization
Explanation:
Plant cells have
It is used for photosynthesis.
es
A.chloroplast
B.nucleus
C.Cytoplasm
D.cell membrane
Answer: A is for sure the answer
Explanation:
what is the significance of a chemical formula?
Answer:
The significance of chemical formula is that it tells us a lot about the chemical reaction
like the name of elements involved in it, number of atom of each element and it also shows that which type of reaction is going on
like exothermic and endothermic, combination, decomposition etc
hope it helps
what happens during G1 phase?
Answer:
G1 phase. G1 is an intermediate phase occupying the time between the end of cell division in mitosis and the beginning of DNA replication during S phase. During this time, the cell grows in preparation for DNA replication, and certain intracellular components, such as the centrosomes undergo replication.
Explanation:
Which is the last structure to contact sperm before it leaves the body?
penis
sperm duct
testes
urinary bladder
Answer:
A is correct
Explanation:
Urinary bladder is the last structure to contact sperm before it leaves the body.
What are the functions of urinary bladder?The urinary bladder, or simply bladder, is a hollow organ in humans and other vertebrates that stores urine from the kidneys before disposal by urination. In humans the bladder is a distensible organ that sits on the pelvic floor.
The urine formed by the nephrons of the kidneys is transported to the urinary bladder for storage before it gets expelled through the urethra. The urinary bladder is a sac that serves as a reservoir for urine.
The urinary bladder is a temporary storage reservoir for urine. It is located in the pelvic cavity, posterior to the symphysis pubis, and below the parietal peritoneum. The size and shape of the urinary bladder varies with the amount of urine it contains and with the pressure.
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Which of the following provides the energy needed for photosynthesis?
Water
Sunlight
Plants
Atoms
Answer:
Explanation:
sunlight
Answer:
Sunlight
Explanation:
Sunlight is light energy that is used for photosynthesis.
Bacteria exist in many shapes and sizes. Which of the following diagrams does not represent a typical bacterial cell?
Answer:
can u please send the diagram.
Question 7
Which equation correctly represents a change in population density?
Change in Population Density = (Births + Immigration) - (Deaths + Emigration)
B.
Change in Population Density = (Births + Emigration) - (Deaths + Immigration)
С
Change in Population Density = (Births - Immigration) + (Deaths + Emigration)
D
Change in Population Density = (Births + Immigration) + (Deaths - Emigration)
Answer:
Its D. I hope this helps!
The equation that correctly represents a change in population density is as follows: Change in Population Density = (Births + Immigration) - (Deaths + Emigration).
What is population density?Population density refers to average population per unit area; especially, the average number of organism living on each km² of land.
A change in the population density is affected by the following factors:
Death rateBirth rateEmigrationImmigrationHowever, the equation that correctly represents a change in population density is as follows: Change in Population Density = (Births + Immigration) - (Deaths + Emigration).
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Can someone please solve this for me?
PLEASE solve number 1 and 2 because i don’t get it , don’t mind my answers
Answer:
1) RNA strand = UCA GCA AAU
2) Amino acids: Asparagine Arginine Stop
(ASN) (ARG) (STOP)
Explanation:
Some theory that you need to know to answer the question:
Each tRNA has two important sites. One of them that couples with the codon of the mRNA molecule, named anticodon. The other site couples with an amino acid through the action of the aminoacyl-tRNA synthase enzyme. The whole complex, amino acid + enzyme + tRNA is named aminoacyl-tRNA. Considering that there are twenty amino acids available, there are also twenty complexes of aminoacyl-tRNA, one for each amino acid.
tRNA allows amino acids to align according to the nucleotidic sequence in the mRNA molecule.
Once the new amino acid joins the growing peptidic chain, the binding between the amino acid and the tRNA molecule breaks. The tRNA is now free to join another amino acid and repeat the cycle.
Now, to fill in the boxes, you need to pay attention to two things:
• Anticodon: In this box, you need to place the sequence of bases that pairs with the mRNA codon.
• Amino Acid: In this box, you need to place the amino acid that is codified by the mRNA codon.
For instance, let us say that the codon of mRNA is CUC. The anticodon for this sequence is GAG (because guanine joins cytosine and adenine joins uracyl).
The amino acid places on the 3´extreme of the tRNA molecule will be the one that is codified by the codon, NOT the anticodon. So, as the codon is CUC, the amino acid will be Leucine, Leu. Do not use the anticodon GAG to fill these boxes. Remember that tRNA is translating information carried by the mRNA, so we need to use this information to grow the protein.
1)
Strand of DNI → AGT CGT TTA
Each of these letters are bases → Adenine, A - Guanine, G - Thymine, T - Cytocine, CEach of these three-lettered groups are codons.So, we need to pair these bases, knowing that:
Adenine (A) and guanine (G) derive from purines, while Thymine (T) Uracile (U), and Cytosine (C) derive from Pyrimidines.
In the DNA molecule, Adenine (Purine) always pairs with Timine (Pyrimidine), while Guanine (Purin) forms pairs with Cytosine.
In the RNA molecule, Adenine is paired with Uracil, U. So, whenever there is an Adenine in the DNI strand, it pairs with Uracil of RNA strand. If there is a Thymine in the DNI strand, it pairs Adenine of the RNA strand. And, as always, Guanine pairs with Cytosine.
A ⇒ UT ⇒ AG ⇔ CKnowing how to pair bases, we can fill the RNA molecule boxes.
Strand of DNI → AGT CGT TTAStrand of RNA → UCA GCA AAUA ⇒ U C ⇒ G T ⇒ A
G ⇒ C G ⇒ C T ⇒ A
T ⇒ A T ⇒ A A ⇒ U
2)
Now we need to translate these new codons of mRNA to amino acids.
To fill the boxes you should have a genetic code chart to see the codons that codify for each amino acid.
Codon: AAU CGA UAG
Amino acids: Asparagine Arginine Stop
(ASN) (ARG) (STOP)
The new protein is synthesized from the amino terminus to the carboxy terminus of the mRNA molecule. The added amino acids to the chain are coded by a codon formed by three bases in the mRNA. mARNs also have a start and end codon that are the signals of the synthesis initiation and finish. When the ribosome reaches a stop codon, protein synthesis is over.
what is the answer to those
Some people think hydropower should be used to supply all of the electricity
for the United States. Which of the following statements describes a flaw in
this plan?
A. Hydropower contributes to the greenhouse effect.
L
B. Hydropower can be used only in the desert.
C. Hydropower is used only as transportation fuel.
D. Hydropower can harm native aquatic populations.
Answer:
D. Hydropower can harm native aquatic populations.
Explanation:
Hydropower is the power of water or hydrosphere and is the cheapest and simplest form of energy. The hydrosphere is a renewable source of energy and is thus non-polluting but most of the hydropower that is converted into electricity is harmful to the marine and aquatic life forms. As it disturbs their habitats and created chemical and physical change in the body of water. Such as depletion of oxygen and enrichment of nutrients.If an air mass is sinking, it must be
A. cold and less dense
B. warm and more dense
C. cold and more dense
D. warm and less dense
Answer:
The awnser to your question is C.
Explanation:
The colder matter is the atoms get closer therefore making the matter more dense. A. is half correct but if the matter is cold it wouldn't be more dense because when something is less dense it goes above whatever is around it. Take for example water and oil. They seperate into different layers due to density. Hope this helps. :)
The airmass is a large homogenous mass of air over a region that could be for many days.
The volume of air is defined by the temperature and water vapor content. Airmass may spread from hundreds to miles and are classified according to latitude and altitude. There are 4 types of air mass artic, tropical equatorial, and polar. The airmass that is light is warm and has a low pressure always lifts upwards. The cold and cool airmass always settles as it's dense and heavy. Hence the option C is correct.Learn more about the air mass is sinking, it must be.
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