DNA:The Secret of Life

What is the effect when mutation causes the gene to change?

• The organism will die.
• All mutations improve the organism.
• Mutations do not cause changes in the organism.
• Some are good, some are bad, and some have no effect at all.

Carmen has curly hair. She married a man with curly hair. All three of her children have curly hair. This is MOST LIKELY because of:

• Genetics.
• Diet.
• Environment.
• hair stylist.

What large, complex molecules perform most of life�s functions?

• Fats
• Carbohydrates
• Proteins
• Acids

Proteins are molecular machines that perform a variety of cell functions. What gives proteins their instructions?

• Mitochondria
• DNA
• Mutants
• Carbohydrates

What is the complete set of all the chromosomes know as?

• Fingerprint
• Genome
• Passport
• Profile

In model of DNA, where would one find hydrogen bonds?

• Connecting the bases
• Along the sides of the double helix
• Connecting the sugar and phosphate
• Outside the cell membrane

DNA molecule resembles a:

• Full moon.
• Ball anchain.
• Series of connected feathers.
• Twisted ladder.

In DNA, adenine always pairs with:

• Cytosine.
• Guanine.
• Thymine.
• Phosphate.

How many times would DNA have to magnified in order for its structure to be visible?

• 5x

• 10x

• 500x

• 10,000,000

Name the 2 scientists that discovered the chemical structure of DNA.

• The two scientists discovered the structure of DNA were James Watson and Francis Crick

• The two scientists discovered the structure of DNA were Rosalind Franklin and Maurice Wilkins

• The two scientists discovered the structure of DNA were Linus and Peter Pauling

• The two scientists discovered the structure of DNA were Bruce Wayne and Lex Luthor