DNA Structure

The genetic material in cells is contained in a molecule called deoxyribonucleic acid. (Pg. 220)

• DNA
• RNA
• FDA
• WWE

A _____ is a set of rules and symbols used to carry information. (Pg. 220)

• code
• copy
• step
• guide

Tags

NGSS.MS-PS4-3

The structure of DNA is a twisted ladder shape called a ... (Pg. 222)

• double helix
• helix
• nucleotide
• nucleous

Tags

NGSS.HS-LS1-1

A base, a sugar, and a phosphate group make a building block of DNA known as a ... (Pg. 223)

• nucleotide
• double helix
• nucleous
• ribosome

There are four different nucleotides in DNA, identified by their bases: adenine (A), thymine (T), cytosine (C), and guanine (G). Adenine always pairs with ... (Pg. 223)

• thymine (T)
• cytosine (C)
• guanine (G)
• adenine (A)

There are four different nucleotides in DNA, identified by their bases: adenine (A), thymine (T), cytosine (C), and guanine (G). Cytosine always pairs with ... (Pg. 223)

• guanine (G)
• thymine (T)
• cytosine (C)
• adenine (A)

_______ are segments of DNA that are organized and carried on the chromosomes. (Pg. 223)

• Genes
• DNA
• Nucleotides
• RNA

Tags

NGSS.HS-LS3-1

The cell is able to make copies of DNA molecules through a process known as _______________. The two strands of DNA separate, almost like two threads in a string being unwound. The bases on each side of the molecule are used as a pattern for a new strand. As the bases on the original molecule are exposed, complementary nucleotides are added. (Pg. 224)

• replication
• mitosis
• meiosis
• fission

Changes in the number, type, or order of bases on a piece of DNA are known as (Pg. 225)

• mutation
• replication
• osmosis
• meiosis

Tags

NGSS.HS-LS3-2

Sometimes, a base is left out. This kind of change is known as a ... (Pg. 225)

• deletion
• insertion
• substitution
• mutagens

Tags

NGSS.HS-LS3-2