The unpredicted changes in the genetic material of chromosomes in a cell is known as Mutation. Mutations are the changes in gene caused by mutagens. Thus, the correct option is A.
Mutation can be defined as any change in the DNA sequence of a cell. These may be caused by mistakes during the cell division, or may be caused by exposure to DNA-damaging agents in the environment which are called Mutagens. Mutations can be harmful, beneficial, or have no effect.
Mutations can affect an organism by changing the phenotype or it can impact the way DNA of an organism codes the genetic information. When mutations occur in an organism they can cause termination of an organism or can be partially lethal.
Therefore, the correct option is A.
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Answer: Amino acids.
Explanation:
There were an famous experiment made by two biochemists called Stanley Miller and Harold Urey, in the year of 1953. They made it at the University of Chicago, USA.
In this experiment, Stanley Miller and Harold Urey simulated hypothetical conditions that Earth’s early atmosphere had, in order to test the hypothesis that gases (as the methane, carbon dioxide, ammonia, amonia and water vapor) allowed inorganic chemicals to form organic molecules.
After one week, these scientis found that organic compounds were formed.
Through this experiment the scientists Stanley Miller and Harold Urey obtained that several amino acids were formed (the most abundant was Glycine).
According to their work, they got 13 of the 22 aminoacids that are used to make proteins in living cells.
lipid
B.
nucleic acid
C.
carbohydrate
D.
protein
Answer:
The correct answer is B. nucleic acid
Explanation:
DNA (deoxyribonucleic acid) is a biomolecule which belongs to the chemical groups of nucleic acids. Nucleic acids include DNA and RNA (ribonucleic acid) and they were called in this way because they were discovered initially within the nucleus of the cells. They are polymers- composed by nucleotids bonded in definited sequences- and they are in charge of the genetic information transference in living organisms.
Where is Glycolysis happening
Answer:
Glycolysis takes place in the cytoplasm. Within the mitochondrion, the citric acid cycle occurs in the mitochondrial matrix, and oxidative metabolism occurs at the internal folded mitochondrial membranes (cristae).
Explanation:
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Answer:
Area
Explanation:
B. Active transport is the only form of transport that requires the use of protein carriers.
C. Active transport requires the cell to expend energy, while passive transport does not.
The difference between active transport and passive transport is that active transport requires the cell to expend energy, while passive transport does not, which is option C.
Cell membranes are selectively permeable barriers that allow certain materials to pass through while blocking others. In order to cross the membrane, materials move through transport processes. There are two main types of transport: active and passive. Passive transport is the movement of materials across the cell membrane without the input of energy. This includes diffusion, osmosis, and facilitated diffusion. These processes are driven by a concentration gradient, which is the difference in concentration of a substance between two areas. Active transport, on the other hand, is the movement of materials across the cell membrane that requires the cell to expend energy.
Hence, the difference between active transport and passive transport is that active transport requires the cell to expend energy, while passive transport does not, which is option C.
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