DNA Intro

Front

What type of bonds are responsible for holding the two strands of DNA together?

Back

Hydrogen bonds are responsible for holding the two strands of DNA together.

Front

What are the three components of a nucleotide?

Back

A nucleotide consists of a phosphate group, a sugar (deoxyribose in DNA), and a nitrogenous base.

Front

Where is DNA stored in eukaryotic cells?

Back

DNA is stored in the nucleus of eukaryotic cells.

Front

What is the basic unit of heredity in living organisms?

Back

The basic unit of heredity is a gene.

Front

What are the four nitrogenous bases found in DNA?

Back

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

Front

What is the structure of DNA?

Back

DNA has a double helix structure, consisting of two strands that wind around each other.

Front

What is the function of DNA?

Back

The function of DNA is to store and transmit genetic information.

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 a chromosome?

Back

A chromosome is a long, continuous thread of DNA that contains many genes.

Front

What is the role of the sugar in a nucleotide?

Back

The sugar in a nucleotide provides the backbone for the DNA structure and connects to the phosphate and nitrogenous base.