Which of the following is true of RNA compared to DNA? A. It lacks phosphate groups. B. It is a single-stranded molecule. C. Its nucleotides do not have sugars. D. It contains four different nucleotides.

QUESTION POSTED AT 13/11/2019 - 05:22 PM

Answered by admin AT 13/11/2019 - 05:22 PM

And if more:Between DNA and RNA, there are three major differences: 1. DNA contains deoxyribose sugar, RNA - ribose, which has an additional, compared deoxyribose with hydroxyl group. This increases the possibility of hydrolysis of the group of the molecule, i.e. reduces the stability of an RNA molecule. 2. The nucleotide complementary to adenine, thymine in RNA does not, as in DNA and uracil - thymine unmethylated form. 3. DNA exists as a double helix consisting of two separate molecules. RNA molecule, on average, shorter and more preferably single-stranded.   based on this, select the answer yourself)!
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Related questions

What are the parts that make up nucleotide

It is made up of a five carbon ribose sugar, phosphate, and on of the nitrogenous bases: adenine, guanine, cytosine or uracil (its usually just one of those bases)

ANSWERED AT 25/01/2020 - 02:36 PM


QUESTION POSTED AT 25/01/2020 - 02:36 PM

Around 50000 rainforest species go extinct every year. true or false

The statement "Around 50000 rainforest species go extinct every year." is true. The principle essential reason for animal extinction in latest circumstances has been, with no sensible uncertainty, human request, either for creature assets specifically or for the regular assets constituting the creatures' living spaces.

ANSWERED AT 25/01/2020 - 02:31 PM


QUESTION POSTED AT 25/01/2020 - 02:31 PM

A paleontology student plans to compare the genomes of fossilized marine organisms from Africa and North America to identify how long ago they had a common ancestor Like most old fossils, the tissue and shell of the organism have been replaced by quartz and calcium rock What faulty reasoning will the student's research advisor most likely point out?

Answer:

A paleontology student plants to compare the genome of the organism and know the recent common ancestor.

The problem that is associated with the question is that the fossils has now been converted into minerals and rocks which has no genetic content in it.

The fossils can be studied only when the fossils has not be completely replaced by minerals. So, the point which has to be point out is that the genetic content cannot be studied when the fossils has been converted in the form of rocks.

ANSWERED AT 25/01/2020 - 02:00 PM


QUESTION POSTED AT 25/01/2020 - 02:00 PM

Which of the following is true concerning the Little River Salt Marsh Restoration Project? a. It revolved around restoring tidal flow with culverts. b. It is a 20 year old conservation effort. c. It was immediately successful upon inception. d. It used massive water pumps to simulate tides.

It revolved around restoring tidal flow with culverts is the one among the following statements that is true concerning the Little River Marsh Restoration Project. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer helps you.

ANSWERED AT 25/01/2020 - 01:59 PM


QUESTION POSTED AT 25/01/2020 - 01:59 PM

In a molecule of water, how many electrons are shared between each hydrogen atom and an oxygen atom? A.) One B.) Two C.) Four

In water molecules there are 2 atoms of hydrogen of and 1 atom of oxygen present. each hydrogen atom shares 1 electron with the oxygen atom. So the total number of electrons shared with oxygen are 2,total no. of electrons shared by hydrogen is 2 and the total no. of electrons shared by each hydrogen atom is 1.

ANSWERED AT 25/01/2020 - 01:59 PM


QUESTION POSTED AT 25/01/2020 - 01:59 PM

The sequence of a DNA strand is ACCTGGAT What will be the sequence of its RNA transcript? TGGACCTA UGGACCUA ACCTGGAT

The second one I believe is coreect

ANSWERED AT 25/01/2020 - 01:59 PM


QUESTION POSTED AT 25/01/2020 - 01:59 PM

The number of different species in an area is a measure of biodiversity True or False?

Answer:

False

Explanation:

The number of different species accounts for SPECIES DIVERSITY. The term biodiversity is a more complex term that should include not only the number of species diversity, but the genetic diversity and the ecosystem diversity of that area.

ANSWERED AT 25/01/2020 - 01:59 PM


QUESTION POSTED AT 25/01/2020 - 01:59 PM

Which of the following is NOT found in the nucleus? a. cytoplasm c. chromatin b. nucleolus d. DNA

The answer is cytoplasm 

The nucleus contains a fluid called nucleoplasm.

ANSWERED AT 25/01/2020 - 01:57 PM


QUESTION POSTED AT 25/01/2020 - 01:57 PM

___________ is the attraction of water molecules to one another, while _________ is the attraction of water molecules to other polar substances. A: Adhesion; cohesion B: Cohesion; adhesion C: crossed out D: Surface tension; adhesion

Answer:

The answer is Cohesion;adhesion

Explanation:

Cohesion means attracted to one another.Adhesion means attracted to the polar substances.

ANSWERED AT 25/01/2020 - 01:54 PM


QUESTION POSTED AT 25/01/2020 - 01:54 PM

Which essential nutrients does the body MOST need in order to build molecules within cells? a. fats b. proteins c. minerals d. carbohydrates

B. Proteins
Hence why body builds drink protein shakes in order to build muscle.

ANSWERED AT 25/01/2020 - 01:47 PM


QUESTION POSTED AT 25/01/2020 - 01:47 PM

In DNA what pairs go together

Due to bonding interactions the nitrogenous bases on one strand of the DNA will always bind with another base on the other strand of DNA. This is due to many different enzymes that help DNA to take its structure

ANSWERED AT 25/01/2020 - 01:45 PM


QUESTION POSTED AT 25/01/2020 - 01:45 PM

The microscope helped prove the theory of blood circulation. a. True b. False?

the answer is false cuase the  blood circulation go in diffren ways


ANSWERED AT 25/01/2020 - 01:43 PM


QUESTION POSTED AT 25/01/2020 - 01:43 PM

Some bacteria, like those that cause Cholera, have a flagellum that allows them to a. move. b. reproduce. c. excrete water. d. produce sugar.

Answer: a. move.

Explanation:

Cholera is a kind of bacteria that uses bacterial flagellar motor composed by stator and rotor and flagellum (plural, flagella) to move. It is located in the plasma membrane and the movement generated is the rotation of flagellum attached to the rotor, driven by the flow of protons from outside to inside the cell. Flagella are long polymers because they are constituted essentially of thousand of identical protein sub units.

ANSWERED AT 25/01/2020 - 01:41 PM


QUESTION POSTED AT 25/01/2020 - 01:41 PM

Why are there many different cell types in the human body if they all contain identical DNA?

Well, DNA is just a big information store house. Every cell in the body contains all the information it needs to perform ANY function in the body. However, every cell does not perform the same job. We need different cells that specialize in muscle formation, brain signals, fingernails, ECT. It's really fascinating if you think about it. Each cell as smart as its neighbor but not too proud or selfish to simply do its own jobs. Hope this helps!

ANSWERED AT 24/01/2020 - 09:57 PM


QUESTION POSTED AT 24/01/2020 - 09:57 PM

True or false recycling of garbage solid wastes and certain crops for generating energy has been accomplished already

Your answer is so true 

ANSWERED AT 24/01/2020 - 09:55 PM


QUESTION POSTED AT 24/01/2020 - 09:55 PM

What do ants do with the sugar they collect

They eat and store it. Ants depend on sugar for energy. 

ANSWERED AT 24/01/2020 - 06:09 PM


QUESTION POSTED AT 24/01/2020 - 06:09 PM

Limiting calories and increasing exercise will cause cells to harvest energy from what molecules?

The answer that will complete the sentence is fat molecules because they are the molecules that are responsible for providing energy and if a person limits calorie intake and exercise increasingly, the fat molecules that the person has will burn and be converted as energy.

ANSWERED AT 24/01/2020 - 06:05 PM


QUESTION POSTED AT 24/01/2020 - 06:05 PM

What can you conclude about gamma rays compared to radio waves?

Radio waves are much more spaced out as gamma rays are much more shorter

ANSWERED AT 24/01/2020 - 05:55 PM


QUESTION POSTED AT 24/01/2020 - 05:55 PM

Which of the following techniques is used by researchers to carry out DNA replication in vitro?

Polymerase chain reaction

ANSWERED AT 24/01/2020 - 04:56 PM


QUESTION POSTED AT 24/01/2020 - 04:56 PM

What are the basic units of a chemical element called? a. gases b. solids c. atoms d. molecules

the basic units of a chemical element is called atoms

ANSWERED AT 24/01/2020 - 12:47 PM


QUESTION POSTED AT 24/01/2020 - 12:47 PM

What molecule makes up more than half of the human body? a. n2 b. h2 c. h2o d. co2

the correct answer for apex is H2O      

ANSWERED AT 24/01/2020 - 12:47 PM


QUESTION POSTED AT 24/01/2020 - 12:47 PM

Which statement is true about gold and helium? a. they are both made of subatomic particles. b. one of made of protons and the other of only electrons. c. they both occur as a gas at room temperature. d. they are both used in balloons.

Answer;

A. They are both made of subatomic particles.

Explanation;

-All the atoms of any element are made of particles, gold and helium are atoms that both contain subatomic particles.

-Particles that are smaller than the atom are called subatomic particles. The three main subatomic particles that form an atom are protons, neutrons, and electrons. Protons and neutrons make up the nucleus of an atom. All protons are identical to each other, and all neutrons are identical to each other.

-Protons have a positive electrical charge while neutrons have no electrical charge and are said to help hold the protons together. Electrons on the other hand are negatively charged and found on the energy levels.

ANSWERED AT 24/01/2020 - 12:46 PM


QUESTION POSTED AT 24/01/2020 - 12:46 PM

What is all matter made of? a. liquids b. atoms c. molecules d. carbon

All matter is made of atoms.

Answer: b. atoms.

ANSWERED AT 24/01/2020 - 12:46 PM


QUESTION POSTED AT 24/01/2020 - 12:46 PM

Which statement is true about silver and gold? a. they both make up the water molecule. b. they are both in every living organism. c. they both are made only of protons. d. they are both made of subatomic particles.

They are both made of subatomic particles is the statement that can be considered as a true statement in regards to silver and gold. The correct option among all the options that are given in the question is the last option or option "d". I hope the answer helped you.

ANSWERED AT 24/01/2020 - 12:46 PM


QUESTION POSTED AT 24/01/2020 - 12:46 PM

What is the most common molecule in living things? a. co b. co2 c. h2o d. h2

Answer: C. H2O

Explanation: Living things composed of many molecules. Which are water , fats , carbohydrates , proteins. Gases include oxygen , carbon dioxide , carbon monoxide , hydrogen etc. Body also contains ions such as sodium , phosphate , potassium etc.

Water is body's main component. The amount of Water in human body is around 55- 60 percent. The percent of water in infants is high around 75-85 percent.

ANSWERED AT 24/01/2020 - 12:46 PM


QUESTION POSTED AT 24/01/2020 - 12:46 PM

“when nitrogen is liquefied, heat is released.” is this statement true or false? it is false because nitrogen absorbs heat when it is liquefied. it is false because nitrogen cannot absorb enough heat to liquefy. it is true because heat is released when a gas changes to a liquid. it is true because heat is released when a liquid changes to a gas.

Nitrogen exist naturally as a gas. When nitrogen is liquefy, it means that the gaseous nitrogen is turn into the liquid form by compressing it. When a substance changes state from gas to liquid form, heat is always released. Thus the correct option for the question given above is: IT IS TRUE BECAUSE HEAT IS RELEASED WHEN A GAS CHANGES TO LIQUID.

ANSWERED AT 24/01/2020 - 12:46 PM


QUESTION POSTED AT 24/01/2020 - 12:46 PM

)Which of the following represents an effect of the dissections of human bodies that occurred during the Scientific Revolution?. . It led to the discovery of DNA.. . It allowed for important discoveries such as the circulation of blood through the body.. . It was a first step toward creating the germ theory of disease.. . It reaffirmed the importance of tools such as the microscope in the study of human anatomy.

It allowed for important discoveries such as the circulation of blood through the body is the statement among the following statements that represents an effect of dissections of human bodies that occurred during the Scientific Revolution. The correct option among all the options that are given in the question is the second option.

ANSWERED AT 24/01/2020 - 12:28 PM


QUESTION POSTED AT 24/01/2020 - 12:28 PM