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AleksandrR [38]
2 years ago
8

Qu'est-ce qu'un polymère?

Biology
2 answers:
STALIN [3.7K]2 years ago
3 0

Answer:

polymer any of a class of natural or synthetic substance composed of very large molecules called macromolecules,that are multiple of simpler chemical units called monomers .polymers they make up many of the materials in living organisms example proteins , cellulose

Serhud [2]2 years ago
3 0

Answer:

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What is the purpose of alternative splicing in eukaryotic cells? What is the purpose of alternative splicing in eukaryotic cells
Komok [63]

Answer:

Produce multiple polypeptide sequences from a single primary transcript.

Explanation:

Some genes produce more than one type of protein since the primary transcript encoded by these genes undergoes alternative splicing. These genes mostly have one segment that can serve either as intron or exon. Also called differential splicing, alternative splicing removes the segment as intron but retains it as an exon.

Splicing of the single primary transcript in different ways produces more than one version of mRNA from a single primary transcript encoded by a single gene. The alternative splicing allows the cells to produce multiple types of troponin proteins from single genes. These different troponin regulation muscle contraction in different muscles

6 0
3 years ago
An introduced species that's sometimes harmful to the prairie chicken (native species) is
Citrus2011 [14]

Answer:

Ring-Necked Pheasants

Explanation:

Ring-Necked Pheasants are known to be nest parasites to the Prairie-Chicken and can disrupt Booming Grounds and Feeding Areas. This puts Prairie-Chickens under the endangered list.

8 0
3 years ago
Why is it important that a healthy diet does not have a specific macromolecule composition?
just olya [345]

Answer:

The correct answer is - each macromolecule has its own function and role in the body of an organism.

Explanation:

There are four major macromolecules that are essential for the energy and growth and development of an organism, are Proteins, carbohydrates, fat and nucleic acids. Each macromolecule is essential and found in various food sources so any specific macromolecule can not found in a healthy diet.

Proteins play various roles in the body such as support, building blocks, carriers, enzymes, and hormones. On other hand, carbohydrate provides energy for the cells, the transmission of the genetic information will be transferred by a nucleic acid. Fat also helps provide insulation, make lipid membranes.

6 0
3 years ago
Consider the parts of a polar ecosystem and a desert ecosystem.
soldier1979 [14.2K]

Answer:

One biotic factor includes soil, air(oxygen and carbon dioxide), water.

One biotic factor includes animals and plants.

Both factors are different in each ecosystem. This is because, for example, the soil in desert ecosystem can differ from the polar ecosystem. Animals in polar ecosystems include polar bears, wolves, etc. while desert ecosystems have animals like deer, artic fox, etc.

Thenks and mark me brainliest :)))

8 0
2 years ago
Read 2 more answers
The lithosphere is divided into ____ (answer the rest please)
Elza [17]
It is divided into tectonic
7 0
3 years ago
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