- DNA contains four types of nitrogenous bases. One of these bases is

A.)thymine.

B.) glucose.

C.) ribose.

D.) uracil.

Answers

Answer 1

Answer:

thymine

Explanation:

the answer is thymine I'm 100% sure

Answer 2
the answer is a) thymine

Related Questions

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.

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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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 :)

NEED THIS ASAP, ITS A FINAL!!! WILL MARK BRAINLIEST IF CORRECT.
The following chart shows the amount of four different minerals found in lake water and in the cytoplasm of algae:

Which mineral(s) did the algae uptake through active transport?

Calcium and sodium
Nitrogen and potassium
Nitrogen only
Potassium and sodium

Answers

Answer:

Calcium and sodium

Explanation:

Answer: Calcium and sodium

Explanation:Here is the chart

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

B is your answer I believe

Answer: YOUR ANSWER IS C- DECREASES

Explanation:

A P E X

In the 1950s, the structure of DNA was discovered by using models and x-ray chromatography. Currently, science has used advanced technology to completely map out the genes in a human’s body. What would be the best advantage of using this information?

Answers

Answer:

Recently around 2008 i believe a female scientist found the end of our chromosomes and what the enzyme telomerase did.

Explanation:

What was awesome was they telomerase fixes the small fragements of DNA that degrade over time. A study was done on mine one was treated with the enzyme the other was not keep in mind the mice were old. The reated mice actually seemed to reverse age because its fur became shinier and its bones strong it just seemed healtehr and it was. The other of course stayed old. So the discoveries help push our life expectancy farther than we used to think was convinient

Answer:

gene therapy to correct defective genes that cause diseases.

Explanation: i hope this is right.

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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Need HELP

Of the items listed, what is something that could be used to help tell the history of an area?

rock layers


animal habitats


human settlements


plant life

Answers

Answer:

rock layers becuase fossils and other ancient things could be in there

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 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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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:

Cytoplasm is found...
A only in prokaryotic cells.
B in all cells.
C. in plant cells only.

Answers

Answer:

C i think

Explanation:

sorry if its wrong :(

Answer: B. In all cells

Explanations: Cytoplasm is found in all cells. This includes plants cells, animal cells, prokaryotic cells and eukaryotic cells. They hold all the components in the cell in place.

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.

Why is one Of the strands of DNA considered leading and the other is considered lagging?

Answers

Answer:

umm

Explanation:


Which of the following tools, produced through the cooperation of many nations, was designed to conduct space research and is
continuously manned by a team of astronauts?

A.
Hubble Telescope

B
International Space Station

C
Spitzer Space Telescope

Chandra X-ray Observatory
D

Answers

Answer:

B ISS

Explanation:

The ISS is a cooperation of the worlds largest nations and can have Russian astronauts, Americans and Italians i believe

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:

FIRST GETS BRAINLIEST so hurry

Answers

Answer:

Your answser should be C

Explanation:

Answer:

c

Explanation:

What is Grow food??????? and wat is the answer :)

Answers

Grow food can consist of chicken,fish,meat,eggs,milk,cheese,yogurt, basically things that are full of vitamins and minerals to keep your skin hair and eyes ✨GLOWING✨‼️ have a God blessed day✝️

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:

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

d.......................................

Deletion of a DNA base from a gene affects an organism by—

Causing future gametes to have additional chromosomes


Changing the sequence of amino acids in a protein


Causing chromosome fragments to form long chains

Changing the structure of ribose sugar in nucleic acids

Answers

Answer:

Deletion of a DNA base from a gene affects an organism by changing the sequence of amino acids in a protein.

Explanation:

A DNA fragment forms a gene, with a specific sequence of nitrogenous bases, which determines the synthesis of a specific protein. When a deletion of a base occurs in such a gene, it affects:

Transcription of the mRNA, which will have the sequence of altered bases. During translation, the mRNA codons will encode at least one different amino acid. The structure of the synthesized protein, which will be altered by changes in its amino acid sequence.

In summary, the deletion of a base in the DNA will affect the protein to be synthesized by changing the amino acid sequence of its structure.

The other options are not possible, because the deletion of a base in the DNA of a gene

    Does not influence the number of chromosomes that the gametes will have.

    It does not produce long chains in the chromosomes.

    It does not affect the ribose structure of the nucleic acids.

Deletion of a DNA base from a gene affects an organism by :

B) Changing the sequence of amino acids in a protein.

DNA

Deletion of a DNA base from a gene affects an organism by the changing the sequence of amino acids in a protein.

A DNA part shapes a quality, with a particular arrangement of nitrogenous bases, which decides the blend of a particular protein. When a erasure of a base happens in such a quality.

Transcription of the mRNA, which is able have the arrangement of changed bases.

The structure of the synthesized protein, which can be changed by changes in its amino corrosive sequence.

Thus, the correct answer is B.

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What is menstruation

Answers

Answer:

a period

bleeding from the woman's parts

Explanation:

a period . which is when a woman bleeds from her private parts

1. B= Brown eyes b= blue eyes Mom= Bb Dad= BB What percentage of their children will have Brown eyes and what percentage will have blue eyes?





% of Brown eyes-

% of Blue eyes-

Answers

100% will have brown and 0% will have blue

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.

What are the primary processes that increase genetic variability?

A. sexual reproduction and mutations

B. cloning and binary fission

C. asexual reproduction and mitosis

D. budding and recombination

Answers

Answer:

A

Explanation:

A is the answer !! hope this helped

How does a Soccer Ball use Inertia

Answers

To change the motion of an object, inertia must be overcome by an unbalanced force acting on the object. Until the soccer player kicks the ball in Figure below, the ball remains motionless on the ground. ... The ball starts moving across the field because its inertia has been overcome

What is the advantage of genetic connections and disadvantage

Answers

Answer:

A sense of relief from uncertainty.

it reduced the risk of cancer

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:

1.
All living things are composed of cells.
Which action is not accomplished by repeated cell
division?
A.
a plant developing new leaves
B.
a broken bone growing back together
C.
a plant using sunlight to make its own foods
food
D.
an eight-pound baby growing into a 100-pound
teenager

Answers

Answer:

C

Explanation:

Everything else has to do with growth but C is talking about food/energy.

A plant using sunlight to make its own foods is accomplished by repeated cell division.

What do you mean by cell division?

Cell division is the process by which a parent cell divides into two daughter cells. Cell division usually occurs as part of a larger cell cycle in which the cell grows and replicates its chromosome before dividing.

There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life.

In eukaryotic cells, or cells with a nucleus, the stages of the cell cycle are divided into two major phases: interphase and the mitotic (M) phase.

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Please help me to do this thank you

Answers

1 .Electrophoresis is a laboratory technique used to separate DNA, RNA, or protein molecules based on their size and electrical charge.

2.Gel electrophoresis is a technique used to separate DNA fragments (or other macromolecules, such as RNA and proteins) based on their size and charge.

... [All DNA molecules have the same amount of charge per mass. Because of this, gel electrophoresis of DNA fragments separates them based on size only.]

3.Gel electrophoresis [ pls chck tiz answer!]

4.DNA is negatively charged, therefore, when an electric current is applied to the gel, DNA will migrate towards the positively charged electrode. Shorter strands of DNA move more quickly through the gel than longer strands resulting in the fragments being arranged in order of size.

5.A buffer is a solution that can resist pH change upon the addition of an acidic or basic components. It is able to neutralize small amounts of added acid or base, thus maintaining the pH of the solution relatively stable.

Why buffer is used in electrophoresis?

High-quality buffers are an important part of electrophoresis. They allow a current to be carried through the sample while resisting pH changes in the overall solution.

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