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2 years ago

Can anyone please answer it for me pleaseeeeee

Biology

2 answers:

Leto [7]2 years ago

7 0

Answer:

what is the question

Explanation:

tell we we will solve it within minutes

Aleksandr [31]2 years ago

7 0

Answer:

Hi, I don't see any of the following questions

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What enzyme allows a retrovirus to make dna from an rna template?.

Zolol [24]

Answer:

Retroviruses or reverse transcriptase

Explanation:

Retroviruses are viruses in which the genetic material consists of ribonucleic acid (RNA) instead of deoxyribonucleic acid (DNA). Retroviruses produce an enzyme known as reverse transcriptase that uses RNA as a template to manufacture DNA, which can then be permanently integrated into the DNA of the infected host cells.

Hope this helps please mark brainliest :)

6 0

2 years ago

Read 2 more answers

What are Nitrogen Bases?

LenaWriter [7]

A nitrogenous base, or nitrogen-containing base, is an organic molecule with a nitrogen atom that has the chemical properties of a base. The main biological function of a nitrogenous base is to bond nucleic acids together. A nitrogenous base owes its basic properties to the lone pair of electrons of a nitrogen atom.

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3 years ago

What is your opinion on Global Warming?

PolarNik [594]

My opinion is that EVEN IF there is anything that humans can do to save our species,
we will argue, debate, play politics, bask in absurd conspiracy theories, fritter around,
dilly dally, and totally ignore the urgency before us, until a time when nothing we're able
to do can any longer have any effect. And that's my opinion.

3 0

3 years ago

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Distinguish between major classes of biomolecules, proteins, lipids, carbohydrates, nucleic acids?

olasank [31]

Answer:

Proteins (polymers of amino acids)

Carbohydrates (polymers of sugars)

Lipids (polymers of lipid monomers)

Nucleic acids (DNA and RNA; polymers of nucleotides)

Explanation:

Proteins:

Chemical formula is CHON

−NH2 + −COOH +R group

Monomer is Amino acids.

Examples are enzymes, and some hormones.

Uses are Storage; Signals; Structural; Contractile; Defensive; Enzyme; Transport; Receptors.

Lipids:

Chemical formula is C:H:O

Greater than 2:1 H:O (carboxyl group)

Monomer is fatty acid and glycerol.

Examples are butter, oil, cholesterol, beeswax.

Functions are energy storage; Protection; Chemical messengers; Repel water.

Carbohydrates:

Chemical formula is C:H:O

1:2:1

Monomer is monosaccharides.

Examples are Glucose, Fructose, Starch, Glycogen, Cellulose.

Uses are energy storage; structure.

Nucleic Acids:

Chemical formula is CHONP

(pentose, nitrogenous base, phosphate ).

Monomer is nucleotides.

Examples are DNA, RNA.

Uses are Genetic information

5 0

3 years ago

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Humoral immunity involves ________ cells and ___________

jarptica [38.1K]

Answer:

Humoral immunity involves B cells and recognize antigens or pathogens in the lymph or blood.

Explanation:

Humoral immunity is defined as the immunity which is mediated by several macromolecules presnet in the extracellular fluids such as antibodies, certain antimicrobial peptides, and complement proteins.

Humoral immunity allows to distinguishes two groups of foreign substances. it involves B cells and recognize antigens or pathogens in the lymph or blood.

Humoral immunity begins when an antigens bind to B cells. Interleukins or helper T cells provides a secondary signal to the B cells that activates a B cell and allows B cell proliferation. which roduces produce plasma cells. The plasma cell then produces antibodies which are identical to the specific antigen. The antibodies are the released and circulate through the body, binding to antigens. B cells the further produces memory cellss for future immunity.

So, Humoral immunity involves B cells and recognize antigens or pathogens in the lymph or blood.

8 0

3 years ago