6B Genetic Code

The twisted ladder structure of DNA is also known as a "____________________."

• single helix

• double helix

• multiple helix

__________ determine a variety of traits, from hair color to an organism's ability to digest food.

• Chromosomes

• Proteins

• Genes

Who is responsible for publishing the structure of DNA in 1953?

• James Watson and Francis Crick

• Gregor Mendel and Walter Sutton

• Thomas Edison and Albert Einstein

DNA Replication is the process in which

• an identical copy of DNA is formed for a new cell

• a copy of DNA is formed for 4 different cells

• DNA is reversed

DNA Replication begins when...

• a DNA molecule unzips

• a DNA molecule multiplies

• base pairs pair up with bases on the DNA halves

At the end of replication,

• two identical DNA molecules are formed

• five identical DNA molecules are formed

• DNA unzips

Adenine always pairs with ___________.

• thymine

• guanine

• cytosine

Cytosine always pairs up with _________________.

• adenine

• guanine

• thymine

A ______________ is any change in the DNA of a gene or chromosome.

• differentiation

• mutation

• cancer

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

Types of Mutation: One base pair may be removed

• Deletion

• Addition

• Substitution