Is DNA usually a string of nucleotides

Answers

Answer 1

Answer: In living organisms DNA does not usually exist as a single molecule, but ...... Levene suggested that DNAconsisted of a string of nucleotide units

Answer 2

Answer: DNA is made up of three subunits: a deoxyribose 5 carbon sugar, a phosphorous group, and a nitrogenous base (adenine, thymine, guanine, cytosine). All in all, these are called nucleotides that wrap around in a double helix in order to form DNA.

Related Questions

If 1g of fat contains 37KJ of energy, what percentage of the energy in the chocolate bar does the fat contain?
What factors besides alleles affect phenotypes
What sysytem does the voice box work in
Explain how a drought might result in a famine.
Can someone give a explanation on what is Natural Selection? 15 POINTS AWARDED!

Name the 3 parts of cellular respiration and where they occur

Answers

Hi there! The three parts of cellular respiration is glycolysis, Krebs cycle, and the electron transport chain. It is broken down into two molecules.

Why do scientists divide the planets into inner and outer planets

Answers

scientists divide the planets into inner and outer planets because of there distance from the Sun. Mercury, Venus, Earth, and Mars are inner planets because they are close to the sun and come before the asteroid belt. Saturn, Uranus, and Neptune are outer planets since they are far away from the sun and come after the asteroid belt.

Which type of RNA is transcribed from DNA and contains the code for polypeptide formation?

Answers

Answer:

mRNA (messenger RNA)

Explanation:

mRNA is transcribed from DNA (a process called transcription) where the mRNA acts as a blueprint to build proteins aka polypeptide formation.

Acid rain is an example of____a. a primary pollutant
b. a secondary pollutant
c. a tertiary pollutant
d. none of the above

Answers

Acid rain is an example of a secondary pollutant. Therefore, option (B) is correct.

Factory, car, and power plant emissions are primary pollutants. Primary pollutants include $SO_2$ and NOx from fossil fuel combustion.

Secondary pollutants are created by chemical interactions between main pollutants and other air components. Acid rain is created when primary pollutants like sulphur dioxide (SO2) and nitrogen oxides (NOx) mix with water, oxygen, and other atmospheric components. These interactions produce sulfuric and nitric acids, which fall as acid rain. Therefore, option (B) is correct.

Learn more about Acid rain, here:

brainly.com/question/26775834?

#SPJ4

Acid rain is known as acidic pollutants that occur when sulfur dioxide in the atmosphere is oxidized in the presence of nitrogen dioxide. So none of those.

PLZZZZZZ HELP ME how plants help provide oxygen for animals

Answers

Because people and animals exhale carbon dioxide which plants need and they release oxygen

we get oxygen from plants and give the plants carbon dioxide

Select all that apply.Vectors that some protozoa use to transfer disease are _____.

ticks
flies
mosquitoes
fleas

Answers

Answer:

Flies, mosquitoes and fleas

Explanation:

Living organisms which spread infectious diseases from infected to healthy humans or from animals to humans are called vectors. Flies, fleas and mosquitos are the vectors which are used by some protozoa to transmit diseases for examples sand flies are the vectors of Leishmania, a unicellular parasitic protozoan. Plasmodium, a parasitic protozoan cause malaria which is transmitted by mosquitos.

Other Questions

What are some biotic factors in a TROPICAL rainforest

Which statement describes a disadvantage of nonrenewable resource?HURRY

How did chloroplasts end up in the producers cell

Describe the direction of the flow of thermal energy if a bowl of ice cream sits on the counter of the kitchen.