DNA Practice

Front

What is a nucleotide?

Back

A nucleotide is the basic building block of DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

Front

What are the four nitrogenous bases in DNA?

Back

The four nitrogenous bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).

Front

How do nitrogenous bases pair in DNA?

Back

In DNA, adenine pairs with thymine (A-T) and cytosine pairs with guanine (C-G).

Front

What is the role of the sequence of nitrogenous bases in DNA?

Back

The sequence of nitrogenous bases in DNA determines the genetic information and traits of an organism.

Front

Where is DNA located in prokaryotic cells?

Back

In prokaryotic cells, DNA is located in the cytoplasm and is not enclosed in a nucleus.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains thymine, while RNA is single-stranded and contains uracil instead of thymine.

Front

What is the function of DNA?

Back

The function of DNA is to store and transmit genetic information that guides the development and functioning of living organisms.

Front

What is a gene?

Back

A gene is a segment of DNA that contains the instructions for making a specific protein or set of proteins.

Front

What is the significance of complementary base pairing?

Back

Complementary base pairing ensures accurate replication of DNA and proper transcription of RNA.

Front

What is the structure of DNA?

Back

DNA has a double helix structure, consisting of two strands twisted around each other, held together by base pairs.