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malfutka [58]
3 years ago
8

You discover an unknown protist. A section breaks off from the main protist specimen, and this piece develops into an adult prot

ist. Select the type of reproduction your specimen underwent and the name of this particular process.
A sexual reproduction; conjugation
B sexual reproduction; fission
C asexual reproduction; fragmentation
D asexual reproduction; budding
Biology
1 answer:
IceJOKER [234]3 years ago
7 0

Answer:

C. Asexual reproduction; fragmentation

Explanation:

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jek_recluse [69]
C. Weather patterns
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3 years ago
Knowledge of the amino acid sequences is important for several reasons. What is NOT one of those reasons
kotegsom [21]

Complete question:

Knowledge of the amino acid sequences is important for several reasons. What is NOT one of those reasons

  1. Amino acid sequences determine the three-dimensional structures of proteins.  
  2. Knowledge of the sequence of a protein can help to prevent mutations.
  3. The sequence of a protein reveals much about its evolutionary history.
  4. The sequence of a protein is necessary to determine its function.

Answer:  

Knowledge of the sequence of a protein can help to prevent mutations.

 Explanation:  

<em>Amino acids connect to each other by peptidic bonds </em>to form a <em>linear polymer</em>. The number of amino acids composing the chain and the order in which they are arranged determines the primary structure of the protein.

The secondary structure is the folding that the polypeptide chain adopts thanks to the formation of <em>hydrogen bonds between the atoms that form the peptide bond.</em>

<u>Protein functions depend on their aminoacids sequences</u><u>.</u> <u>The primary structure of the proteins determines the three-dimensional one</u>. Proteins with different functions have different sequences. And among species, proteins with similar functions have similar structures.

By knowing the sequence of amino acids, we can predict the function of the protein and we can classify them into different families. Integrants of these groups have at least 25% of their sequences identical to each other.  

Also, the knowledge of the sequence allows establishing evolutionary and genetic relationships between different species.

When a mutation occurs in the sequence -an alteration in the primary structure- the protein function is modified. BUT knowing the sequence of a protein CAN NOT help to prevent mutations.

   

6 0
3 years ago
Your skin cells have 46 chromosomes. After they complete the cell cycle, how many chromosomes will be in the daughter cells? Exp
lidiya [134]

Answer:

46

Explanation:

<u>The skin cells with 46 chromosomes will each produce daughter cells with 46 chromosomes after they complete the cell cycle.</u>

The skin cell is a vegetative cell that can only divide through mitosis. Mitosis is also referred to as equational division during which a cell produces two daughter cells that are both genetically and phenotypically similar to the parent cell.

<em>During the cell division, at the anaphase stage to be precise, the chromosomes are separated into sister chromatids and sister chromatids of the same chromosomes move in the opposite direction to the poles of the cell before the cytoplasm of the mother cell divides to produce two independent daughter cells. Each chromatid in the new daughter cells then goes ahead to become a complete chromosome with two sister chromatids.</em>

Hence, at the end of the cycle, each daughter cell ends up having the same 46 chromosomes as the parent cells.

4 0
3 years ago
A cell plate is forming in one of the cells that you are observing, which of the following type of cells could you be viewing?
Nadya [2.5K]
The answer is B) root tip cells
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3 years ago
Which of the following describes a relationship of parasitism?
quester [9]
The correct answer is <span>C. A tick attaches itself to the skin of a dog.

A parasitic relationship is one where one organism thrives at the expense of the other. The other organism does not gain but loses.</span>
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3 years ago
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