DNA Replication & Protein Synthesis

Front

At what point in the cell cycle does DNA replication occur and why?

Back

before a cell divides, to provide each of the two resulting cells with a complete set of DNA instructions

Front

Which choice describes DNA after replication has taken place? Options: one molecule with two original strands and one molecule with two new strands, two molecules, each with one original and one new strand, two molecules, each with two new strands, two molecules, each with two old strands

Back

two molecules, each with one original and one new strand

Front

The sequence of DNA below is part of a gene. How many amino acids are coded for by this segment?

Back

4

Front

Which of the following would most likely cause a mutation?

• the placement of ribosomes on the endoplasmic reticulum
• the insertion of a nucleotide into DNA
• the movement of transfer RNA out of the nucleus
• the release of messenger RNA from DNA

Back

the insertion of a nucleotide into DNA

Front

Identify the process shown at point Z in the cellular diagram. Options: Translation, Translocation, Replication, Transcription

Back

Translation

Front

Which of the following carries amino acids to the site of protein synthesis? mRNA, rRNA, tRNA, nRNA

Back

tRNA

Front

What is the relationship between these three structures? (Refer to the diagram)

Back

DNA controls the production of protein in the cell.

Front

Why can bacteria recognize a human gene and then produce a human protein?

Back

The basic components of DNA are the same in humans and bacteria.

Front

The molecule represented is found in living things. Which statement describes one characteristic of this molecule?

Back

It is the template for the replication of genetic information

Front

The diagram below represents a portion of a DNA molecule. The letters represent different types of: sugar molecules, nitrogen bases, enzymes, proteins

Back

nitrogen bases