What is an abstract?

1 answer:

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An abstract is a summary of the most important points in a scientific paper so scientists can keep up to date and know what the scientefic work says with out spending lots of time reading it.

Check out the article below for more information.
Ebert, James R. "WHAT IS AN ABSTRACT." WHAT IS AN ABSTRACT. N.p., n.d. Web. 06 Mar. 2016.

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Proteins may be classified according to their three-dimensional shapes. Determine whether the following examples and description

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Answer:

-often function as enzymes or transport proteins ⇒ globular proteins

-peptide chains arranged in long strands, or fibers ⇒ fibrous proteins

-peptide chains highly folded into spherical shapes ⇒ globular proteins

-keratins ⇒ fibrous proteins

-hemoglobin ⇒ globular proteins

-water-soluble ⇒ globular proteins

-collagens ⇒ fibrous proteins

-insoluble in water ⇒ fibrous proteins

-generally function in structure and support ⇒ fibrous proteins

Explanation:

Fibrous proteins are composed by large polypeptide chains which interact each other and form large structures. They have water insoluble and have structural and protection functions- they are components of cells and tissues. Examples are: collagen, fibronectin, keratin, elastin, actin.

Globular proteins have a spherical compact structure in which hydrophobic aminoacids are buried inside the structure and hydrophilic aminoacids (which can interact with water molecules) are exposed to the exterior medium. For this, they are water soluble. They have often transport and catalytic functions. For example: hemoglobin, mioglobin, albumin, enzymes in general.

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3 years ago

PLEASE HELP! Bruh I will give brainly

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Answer:

Analytical Chemistry

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Why am I am idiot? I want my friends to come to me to a school and I have tried to convince them so much and succeeded. Now, I f

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Answer:

Explanation:

You might not necessarily be any idiot as you think but what you failed to do before convincing your friends to come to the school was that you did not make appropriate findings if the school, the comfortability of your friends, their needs if then eventually come and transportation. Assuming you make these researches beforehand, you would have know what to to do and won't find yourself in the situation you find yourself now.

It is advisable you make proper, findings before taking a decision. You can still explain the situations to your friends.

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What is recombination and how does it work? is it the same thing as crossing-over? if an organism practiced self-fertilization,

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Recombination is the method by which organisms can randomly assort their genotypes amongst each other to create offspring with a different haplotype than either of its parents. This can be done by either copying sequences from one homologous chromosome to another (no physical exchange) or crossing over (physical exchange.
Crossing over is a mechanism in eukaryotes by which recombination can occur, in which the two homologous chromosomes contributed by both parents literally cross over and break at certain points to exchange certain sections of the chromosomes amongst each together.
Self fertilizing organisms typically do not produce offspring that are genetically identical. However, this has an inbreeding effect on its offspring, since it is recombining from the same genotype and so has a higher chance of producing homozygous offspring. This is very detrimental for mammals and some eukaryotes, but in some other organisms such as bacteria, homozygosity is typically not an issue.

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A shadow of complete darkness is called the

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The umbra is the innermost and dark part of the shadow where like it’s created by any light source and is completely blocked by the occluding body. It’s a Latin term hope this helps man!

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