Understanding Genes and Mutations

Front

What is a Gene?

Back

A segment of DNA that contains instructions for building proteins.

Front

If we considered the structure of DNA like a twisted ladder, what would make the sides of the ladder?

Back

The sugar-phosphate molecules.

Front

If we considered the structure of DNA like a twisted ladder, what would make the steps of the ladder?

Back

The nitrogen bases.

Front

Match the word with its meaning: Chromosome

Back

Has all genetic information of organism.

Front

Match the word with its meaning: Nucleotide

Back

Building block of DNA.

Front

Match the word with its meaning: Gene

Back

Instructions that cells follow.

Front

Match the word with its meaning: DNA

Back

Made of DNA + proteins.

Front

What determines the effect of a mutation?

Back

The specific change in the DNA sequence.

Front

How can a mutation affect the organism?

Back

Some mutations are beneficial, some are harmful, and some do not do anything.

Front

What causes cystic fibrosis?

Back

A mutation in the CFTR gene.