Answers
If I am understanding correctly, the first thing they are asking you to do is match nitrogen bases.
Adenine (A) always pairs with thymine (T), and guanine (G) always pairs with cytosine (C).
Then, whichever are the double strands, cut them out and put them into you notebook. (I am not sure where the notebook is, but I am assuming you know)
Then in the speech bubble next to the picture of Chargaff- talk about his rule.
What does the rule mean?
What does the rule explain?
How is the rule demonstrated?
Lastly, finding percents. What percent of the pairs has Adenine in them?
For example:
If I look at this pairing below
A →T
T→ A
G →C
C→ G
50% of the pairs include Adenine.
Hope I helped! Comment if you have questions about my answer :)
Answer:
If the sequence of nitrogenous bases of a DNA strand is ATCTAGGCCG, the complementary strand would be TAGATCCGGC, with a percentage of guanine 30%, cytosine 30%, adenine 20% and thymine 20%, according to Chargaff's rule.
Explanation:
DNA is made up of sequences of nitrogenous bases, which are adenine (A), guanine (G), thymine (T) and cytosine (C). The bases of one strand are matched with the bases of another, according to the complementarity of nitrogenous bases, where:
Adenine is complemented with Thymine A=T Guanine is complemented with Cytosine G≡CThe image shows a DNA chain whose chain is complementary:
DNA Strand given Complementary Strand
Adenine Thymine
Thymine Adenine
Cytosine Guanine
Thymine Adenine
Adenine Thymine
Guanine Cytosine
Guanine Cytosine
Cytosine Guanine
Cytosine Guanine
Guanine Cytosine
Therefore, in a DNA molecule there is as much adenine as thymine, and an equal amount of cytosine and guanine. In this example there are 4 molecules of adenine, 4 molecules of thymine, 6 guanines and 6 cytosines.
The proportion or percentages of nitrogenous bases can be calculated according to Chargaff's rule.
Chargaff was able to establish that in a DNA molecule the ratio of purine:pyrimidine of 1:1, so there must be the same amount of thymine as adenine and a similar amount of guanine for the cytosine, according to the complementarity of bases.
Taking into account the law of the base pair, if in a DNA chain there is 30% of Adenine, in the molecule there is:
Guanine 30%
Cytosine 30%
Adenine 20%
Thymine 20%
Total ..... 100%
Related Questions
One student made the incomplete diagram shown below to represent the relationship between magma, igneous rocks, and metamorphic rocks:
three ovals, labeled from left to right, metamorphic rock, magma, and igneous rocks respectively.
Which of these is the correct next step to complete the diagram?
Put an arrow labeled cools and crystallizes, pointing from igneous rocks to metamorphic rocks.
Put an arrow labeled cools and crystallizes, pointing from metamorphic rocks to igneous rocks.
Put an arrow labeled heat and pressure, pointing from igneous rocks to metamorphic rocks.
Put an arrow labeled heat and pressure, pointing from metamorphic rocks to igneous rocks.
30 POINTS
Answers
Answer:
Because you know when the magma falls down as lava
Explanation:
When the lava grows it boils the rocks createing a burn of magma
Answer:I think it’s c
Explanation:
A order arrangement of properties is called
Answers
Answer:
its order of operations
Give an example of convection.
Answers
Answer:
radiator -
A radiator puts warm air out at the top and draws in cooler air at the bottom. steaming cup of hot tea -
The steam you see when drinking a cup of hot tea indicates that heat is being transferred into the air. ice melting -
Ice melts because heat moves to the ice from the air.
Explanation:
What are the possible blood types of a baby with a mom who is heterozygous for blood type A and a dad with type O?
Answers
Answer:
A & O group
Explanation:
Dad will be having io io allele and mom will be having ia io
The possible blood types for the baby are either A or O, with equal likelihood of 50% for each.
What is blood type?A classification system called blood type explains whether or not specific antigens are present on the surface of red blood cells. Each of the four major blood types—A, B, AB, and O—has distinct antigen markers.
A and O are the two possible blood types for a child whose mother is heterozygous for blood type A (genotype AO) and whose father has type O (genotype OO).
A baby has a 50% chance of acquiring the A allele from the mother and a 50% chance of inheriting the O allele from the father because each parent gives one of their two blood type genes to their offspring.
Baby with blood type A inherits the A allele from the mother and the O allele from the father (genotype AO).
The child will have blood type O if both parents carry the O allele (genotype OO).
Therefore, the possible blood types for the baby are either A or O, with equal likelihood of 50% for each.
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Describe animal interactions that affect populations in the tundra ecosystem. (Please help please... I have already had a mental breakdown over school today because its getting harder and harder so please help!)
Answers
Answer:
Herbivorous animals are unable to feed and end up migrating to other regions in search of food.
Explanation:
The tundra is a type of vegetation composed almost exclusively of mosses and lichens. This type of vegetation is found in regions with a polar climate. It is important to note that the tundra has a very fast vegetative cycle. That's because it freezes quickly and can be covered with ice all winter. This ends up modifying the lives of some animals that feed on this vegetation. These animals end up with unavailability of food and need to migrate to others in search of food.
the male and female reproductive cells called _________ ( gametes / zygote ) fuse to from a single cell called ___________ ( gametes / zygote ).
Answers
Answer:
Explanation:
the female and male reproductive cells are called "Gametes" fuse to from a single cell called "Zygote"
Which is involved in engulfing?
(A)Golgi bodies (B)transport proteins (C)endoplasmic reticulum (D)cell membrane
Answers
Answer:
c
Explanation:
Please guys answers these questions! If you answer I’ll mark you brainliest. Thank you
Answers
1. digestive organs accesory organs
the organs that are directly involved the organs which helps the
in digestion like stomach, small intestine, digestive organs by thier
large intestine etc scretions or by other means like
liver ,pancreas etc
2. food bolts chyme
DIFFERENCES
the substance which The semi hard the soup like substance
is eaten by a person. substance
it is semi digested in it leaves oral cavity it leaves stomach and went to
oral cavity. and move to stomach small intestine
SIMILARITIES
They all are nutrients containing meterials which are to be digested. they all contain carbohydrates,protiens ,fats and vitamins (somehow if the food is taken from plant source) and they all are about to be absorbed.
3.DIGESTIVE SYSTEM:
the process in which food substance is broken into pieces and is converted into the simpler substances which can be assimilate by body cells. Different glands scretes digestive juices which digest fats,protiens ,carbohydrates etc e.g gastrin,bile,pancreatic juice and intestinal juice. and at the end all the product remain is excreted out after assimilation.
ORGANS INVOLVED: oral cavity,oesophagous,stomach small intestine ,large intestine.
4. salivary glands are damaged:
if salivary glands are destroyed or damaged then no saliva will produce to protect the walls of gut and the gut walls will be damaged by the acidic or basic juices of gut which will causes severe ulcer of oesophagous, stomach or intestinal.
5.CONSTIPATION:
when too much water is absorbed by the walls of large intestine so the end product which is to be excreted will become so hard that it is dificult to excrete 0it out of body.
CAUSES: it may be caused by hormonal disturbance ,water deficiency and may be by silliness of a person that he use to be silly to go to the bathroom at time.
6. INGESTION: Taking of food from the outside of the body from different means which contain nutrients essential for body growth.
DIGESTION: Breakdown of food into simpler substance which can be easily taken by body cells .
ABSORPTION:Large intestine and smaal intestine absorbs the certain amount of nutrients and water from the digested substance to fullfil the body deficiencies. These nutrients are then assimilated into the body.
EXCETION:the substance which remain after absorption is excreted out of the body from exterior opening called anus is called excretion.
Explain how buming fossil fuels can lead to a lower ocean pH
Answers
Answer:
By letting the fossil die in the sea in let sit for a long time
Explanation:
If a DNA strand has 32 % guanine before semi conservative replication occurs, what
percent thymine will each new strand have after replication?
Answers
Answer:I believe that the answer would be 18
Explanation:
32 divided by 2 is 18
If a DNA strand has 32% Guanine before semi-conservative replication occurs, then the percent Thymine will each new strand have after replication will be 18%.
The deoxyribonucleic acid (DNA) is a double helix molecule composed of four types of nucleotides: Adenine (A), Thymine (T), Cytosine (C) and Guanine (G).In DNA, Adenine (A) always pairs with Thymine (T), whereas Cytosine (C) always pairs with Guanine (G). The replication of DNA is semi-conservative because after replication each DNA molecule contains one original DNA strand and one newly-synthesized DNA strand.If a DNA molecule contains 32% of Guanine, then the content of G + C is equal to 64%, so the content of T + A is equal to 36% (64 + 36 = 100) and T content is 18% (18 + 18 = 36).In conclusion, if a DNA strand has 32% of Guanine before replication, then the percent of Thymine after replication will be 18%.
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What is Grow food??????? and wat is the answer :)
Answers
please answer this question
Answers
Answer:
The trend shows that the Enzyme Pepsin is active and prefers the pH level of 2. While Trypsin Is much active at pH 8 and prefers that pH level.
Explanation:
You can tell by seeing the enzyme activity compared to the pH range. Enzymes are simply proteins which work around your body so pepsin since it is active in acidic levels (pH 2) is probably an enzyme found in the stomach.
The trend shows that the Enzyme Pep sin is active and prefers the pH level of 2. While Trypsin Is much active at pH 8 and prefers that pH level.
What are the functions of enzyme pepsin?Pepsin is an endo peptidase that breaks down proteins into smaller peptides. It is produced in the gastric cells of the stomach lining and is one of the main digestive enzymes in the digestive systems.
Pep sin is a stomach enzyme that serves to digest proteins found in ingested food. Gastric chief cells secrete pep sin as an in active zymogen called pepsinogen.
In the digestive tract pepsin effects only partial degradation of proteins into smaller units called peptides, which then either are absorbed from the intestine into the bloodstream.
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PLZ HELP!!!
Which layer of Earth has convection currents?
A. Asthenosphere
B. Crust
C. Lithosphere
D. Mesosphere
Answers
Answer:
D is answer
i
hope
it
helps
uwu
what is energy releasing equation ?
Answers
Answer:
I hope this helps you
Explanation:
ADP is combined with a phosphate to form ATP in the reaction ADP+Pi+free energy→ATP+H2O. The energy released from the hydrolysis of ATP into ADP is used to perform cellular work, usually by coupling the exergonic reaction of ATP hydrolysis with endergonic reactions.
The energy releasing equation, also called enthalpy is calculated using the formula: ΔH = Hfinal - Hinitial
What is enthalpy?Enthalpy refers to the heat content of a system combining the energy of the system with the product of its pressure and volume. When a chemical reaction or physical process occurs energy is emitted in the form of heat.
The equation used to determine the amount of heat released by a system during a reaction or physical process is known as the energy release equation.
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Help pleaseeeee
A patient has a severe bacterial infection. within a few weeks of treatment with an antibiotic, the bacterial population consists entirely of
antibiotic-resistant bacteria. How can this outcome most likely be explained?
OA The antibiotic caused a mutation in the bacteria's RNA,
OB. The bacteria began reproducing at a faster rate than before the antibiotic treatment.
Oc. The antibiotic created resistance in the bacteria, and the bacteria are passing the resistance to one another.
oDA Small population of antiblotic-resistant bacteria were present before the treatment, and natural selection increased their
frequency.
Answers
Answer:
D
Explanation:
The antibiotics are targeting bacteria that are not resistant to the antibiotic and any that are will survive treatment. Bacteria can reproduce and share their resistance quickly.
a web of proteins in the cytoplasm that keeps a cell's membrane from collapsing is a?
Answers
Answer: Cytoskeleton
Explanation: The cytoskeleton is the web of proteins in the cytoplasm. -It acts as a muscle and a skeleton. -It keeps the cell membrane from collapsing.
In otters, the allele for brown fur (B) is dominant over the allele for silver fur (b). Two brown otters mated and a silver pup (baby otter) was born. What were the genotypes of the parents?
Answers
Answer:
Bb, Bb
Explanation:
since silver was recessive, both parents had to carry the gene to affect the nest generation but since they were both brown they also needed to have the brown gene present.
The genotype of the parents who produce a silver pup will be heterozygous dominant i.e., Bb. The ratio of the offspring produced from this cross will be 3:1.
What is Genotype?
The genotype of an organism is the complete set of genetic material which is present in the nucleus of the cell. Genotype can also be used to refer to the alleles an individual carries in a particular gene or genetic location in the genome.
In otters, the allele for brown fur (B) is dominant over the allele for silver fur (b). When the two brown fur otters were mated, a silver pup was born.
In this case, brown fur phenotype can be expressed in two cases, homozygous (BB) and heterozygous (Bb).
When both the parents are heterozygous for the character i.e., Bb. Then, the offspring produced will be in the phenotypic ratio of 3:1 i.e., three offspring will have brown fur and one will have silver fur.
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What would cause a change in the phenotype of an offspring?
Answers
Answer:
In most sexually reproducing organisms, each individual has two alleles for each gene (one from each parent). This pair of alleles is called a genotype and determines the organism's appearance, or phenotype.
Explanation:
A sound wave passes from air into water and then into steel. With each change in medium, what happens to the speed of the wave?
A
It increases, then decreases.
B
It increases.
C
It decreases.
D
It decreases, then increases.
Answers
Answer: YOUR ANSWER IS C- DECREASES
Explanation:
A P E X
Why is one Of the strands of DNA considered leading and the other is considered lagging?
Answers
Answer:
umm
Explanation:
Why were garden peas a good choice for a study of heredity?
Answers
Answer:
pea plants because they were easy to grow, could be bred rapidly, and several observable characteristics, like petal color and pea color.
Explanation:
Why can’t your body heal an amputation the same way it can heal a cut?
Answers
Answer:
because the mother sells are less for that kind of cuts so they don't regenerate and in a cut its easier because they are just in number for that cut
Explanation:
Need help pls if you can
Answers
Answer:
60
Explanation:
Advantage of genetic connections
Disadvantages of genetic connections
Answers
Answer:
Advantage
Explanation:
- ups
Label the transverse wave below
Answers
What is the main function of environmental policy?
a.
prevent the use of natural resources
b.
reduce human impact on the environment
c.
prevent nature from having a harmful effect on humans
d.
reduce the use of natural resources
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
reduce impact on the environment
The main function of environmental policy is to reduce human impact on the environment. So the correct answer is B.
environmental policy is any action taken by a government, business, or other public or private organization to address the impacts of human activity on the environment, particularly those that aim to mitigate or prevent negative effects on ecosystems.
It is our approach to look for consistent improvement all through our business tasks to reduce our effect on the neighborhood and worldwide climate by saving energy, water and other normal assets; reducing the production of waste; repurposing and; minimizing our use of hazardous materials.
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Describe binomial nomenclature with a single sentence
Answers
Answer:
Binomial nomenclature is a two word naming system using the genus as the first word and the species as the second word
Explanation:
For example, using binomial nomenclature we can classify a maple tree as the genus "Acer". Since there are so many species of maple trees, they have different names all starting with Acer.
- Acer rubrum = Red maple
- Acer saccharum = Sugar maple
I hope this helps!!
- Kay :)
A mutation can cause a defect in human hemoglobin. Which would result in this type of mutation?
Answers
Answer:
Decreased ability to carry oxygen. -a result in this type of mutation.
Answer:
There would be a decreased ability to carry oxygen, there will be development of cancer tumors, and there would be an inability to break down sugar development of bacterial infections.
Explanation:
When the process of mitosis is correctly completed, the daughter cells should contain exact copies of all of an organism's genes. Which biomolecule contains all of an organism's genes?
Answers
Answer: nucleic acids
Explanation:
Identify the moon phase pictured below
IDENTIFY
Answers
Answer:
first quarter
Explanation: