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Oksi-84 [34.3K]
3 years ago
9

Secondary structure is determined by interactions between amino acid side chains and tertiary structure is determined by interac

tions between the repeating constituents of the polypeptide backbone.
Biology
1 answer:
STatiana [176]3 years ago
6 0

Answer:

False

Explanation:

The sequence of amino acids in a protein is determined by the DNA and the structure of protein thus formed is a linear sequence.  These linear structures undergo structural changes due to the formation of bonds between the constituent molecules.  

When bonds are formed by the interactions between the CO group of one chain and the -H group which forms the backbone is known as the secondary structures. Two types of arrangements arise of this that is the helical and pleated sheet.

When the bonds are formed between the side groups or the R group of the amino acid therefore the amino acid structure formed is known as the tertiary structure.

Thus, false is the correct answer.

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How are the 3 stages of cell division similar to how new animals are created?
Vera_Pavlovna [14]

Answer:

Cell divison is defined as the process in which a parent cell split into two or more daughter cells. There are three stages of cell division that includes interphase, mitosis/meiosis and cytokinesis.

In the interphase the proteins, enzymes and cell organelles are formed and at the end of this phase single strand chromosome becomes a double strand carrying genes.

In the meiosis (in sexual reproduction) or mitosis (asexual reproduction) phase, divison of nucleus takes place. Meiosis gives rise to geneticaly different cells due to crossing over while mitosis leads to  identical cells .

Cytokinesis occurs cocurrently after meiosis or mitosis in which cytoplasm of a parental cell divides into two daughter cells each with identical chromatin.

Creation of new animals are also undergo these 3 stages of cell division that is interphase, meiosis (eukaryotes)/mitosis (prokaryotes) and cytokinesis. Majority of animals (eukaryotes) undergo meiosis phase because their mode of reproduction sexual and have genetic variation due to crossing over of chromosomes and produces 4 daughter cells at the end cell division.

Hence, the 3 stages of cell division is similar to craetion of new animals.

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Answer:

Wait like actually? Do we need to get to Mars?

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Gabe's wife wakes him from his peaceful slumber to tell him she heard a noise. As he slowly gets up to investigate, his heart be
allochka39001 [22]

Answer: Clearly his SYMPATHETIC nervous system has been activated.

Explanation:

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What are the similarities and differences between prokaryotic and eukaryotic cells?
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Eukaryotic

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Prokaryotic

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  • Prokaryotes are smaller than eukaryotes

Hope this helps :)

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