DNA Structure Pre-Assessment Flashcard

Front

What is the basic structural unit of DNA?

Back

Nucleotide

Front

What are the proper complementary base-pairs in DNA?

Back

A--T and G--C

Front

Identify the type of bond that holds the two strands of a DNA molecule together.

Back

Hydrogen bond

Front

What is the DNA complement of the sequence GCAATCA?

Back

CGTTAGT

Front

What are the four nitrogenous bases found in DNA?

Back

Adenine (A), Thymine (T), Cytosine (C), Guanine (G)

Front

What is the role of DNA polymerase in DNA replication?

Back

DNA polymerase synthesizes new DNA strands by adding nucleotides complementary to the template strand.

Front

What is the shape of the DNA molecule?

Back

Double helix

Front

What is the function of the sugar-phosphate backbone in DNA?

Back

It provides structural support and stability to the DNA molecule.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains deoxyribose sugar, while RNA is single-stranded and contains ribose sugar.

Front

What is a gene?

Back

A segment of DNA that contains the instructions for making a specific protein.

Tags

NGSS.HS-LS1-1