DNA Genes and Proteins

What is the function of codons in RNA?

• They store the genes of a cell

• They are bonded together to form proteins

• They code for a specific amino acid in a protein

• They translate the genetic code in RNA

All mutations in a DNA sequence are harmful.

• True

• False

Tags

NGSS.HS-LS3-2

What happens in Interphase?

• Spindle fibers form in the cell.

• The nuclear membrane dissolves

• The chromosomes duplicated

• Nuclear membranes form around the chromosomes

What is the role of RNA in a cell?

• To serve as the building block of proteins

• Change code in the DNA sequence

• Transcribe and translate genetic code

• All of the answers

Why is the statement: Changes in the amino acid sequence of a protein always cause changes in its function, false?

• Changes in amino acid sequence can cause changes in protein structure.

• Changes in protein structure can cause changes in function.

• Some changes in amino acid sequence do not change the structure.

• Some changes affect the structure without affecting the function of the protein

A species of fish glows to attract prey to come to it. What might happen if the DNA had a mutation in its sequence that coded for a protein to not produce light.

• The fish may not catch as many prey

• The fish may die

• The fish may produce more fish with that mutation

• The fish may become a shark

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS4-4

The purpose of mitosis is:

• to repair damaged cells.

• to remove mutations from DNA

• to create exact copies of cells

• to create proteins from amino acids

Tags

NGSS.HS-LS1-4

Chromosome pairs can contain only one allele or version of a gene.

• True

• False

Tags

NGSS.HS-LS3-1

What is RNA made of?

• DNA

• proteins

• nucleotides

• chromosomes

How many codons are represented in the following RNA sequence? GUACCUCGAUAG

• 1

• 4

• 12

• 6