Protein Synthesis Practice Test

Which outcome would be most likely if a cell failed to undergo cytoplasmic division during mitosis?

• The result would be one cell with no nucleus.

• The result would be two cells each without a nucleus.

• The result would be two cells where one has no nucleus.

• The result would be one cell with two nuclei.

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NGSS.HS-LS1-4

If a chemical that disrupts cell division were added to a culture of human kidney cells in a laboratory, which process would be halted?

• active transport

• cellular respiration

• mitosis

• photosynthesis

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NGSS.HS-LS1-4

Imagine a single skin cell on your hand decides to divide. What is the outcome of this cell going through one cycle of mitosis?

• one daughter cell with half the number of chromosomes of the parent cell

• two daughter cells with half the number of chromosomes of the parent cell

• one daughter cell with the same number and type of chromosomes as the parent cell

• two daughter cells with the same number and type of chromosomes as the parent cell

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NGSS.HS-LS1-4

Why is the S phase of the cell cycle important in a rapidly growing plant?

• The cell copies its DNA.

• The cell grows.

• The cell makes more organelles.

• The cell divides into two daughter cells.

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NGSS.HS-LS1-4

Imagine observing a plant in your garden under a microscope during its cell division. You note four distinct stages of mitosis. Which sequence correctly orders these stages?

• W, X, Y, Z

• X, Y, W, Z

• Y, Z, X, W

• Z, X, W, Y

Tags

NGSS.HS-LS1-4

In the context of molecular biology, when comparing the structure of molecules within a cell, what is the primary difference between RNA and DNA?

• DNA is double-stranded and contains uracil, while RNA is single-stranded and contains thymine.

• DNA is double-stranded and contains thymine, while RNA is single-stranded and contains uracil.

• RNA is double-stranded and contains thymine, while DNA is single-stranded and contains uracil.

• RNA is double-stranded and contains uracil, while DNA is single-stranded and contains thymine.

During an expedition to a remote island, Dr. Smith discovers a new species of bacteria. In analyzing its DNA, she finds that the relative percentage of adenine base is approximately 23%. Based on this information, what would be the expected percentage for the other three bases?

• thymine: 27%; guanine: 27%; cytosine: 23%

• thymine: 23%; guanine: 23%; cytosine: 23%

• thymine: 23%; guanine: 27%; cytosine: 27%

• thymine: 27%; guanine: 23%; cytosine: 23%

Where does the process of translating the genetic code into proteins occur in a cell?

• in the nucleus

• in the mitochondria

• on the chloroplasts

• on the ribosomes

Where does transcription occur in a human cell?

• on a ribosome

• in the nucleus

• in the cytoplasm

• on the mitochondria

In the process of creating a new protein, what role does mRNA play in a cell?

• It checks and corrects the cell's DNA before the cell divides, ensuring accuracy during mitosis.

• It duplicates the cell's DNA, enabling the cell to split during mitosis.

• It acts as a messenger carrying instructions from DNA for controlling the synthesis of proteins.

• It serves as a guide for tRNA to assemble amino acids in the correct order for protein formation.