DNA Structure

Front

What is the structure of DNA?

Back

DNA is a double helix formed by two strands of nucleotides twisted around each other.

Front

What are the four nitrogenous bases in DNA?

Back

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

Front

How do the nitrogenous bases pair in DNA?

Back

Adenine pairs with Thymine (A-T) and Cytosine pairs with Guanine (C-G).

Front

What is the role of deoxyribose in DNA?

Back

Deoxyribose is the sugar component of DNA nucleotides, forming part of the backbone.

Front

What is the function of phosphate in DNA?

Back

Phosphate groups link the deoxyribose sugars, forming the backbone of the DNA structure.

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 is the significance of histones in DNA?

Back

Histones are proteins that help package DNA into a compact, organized structure called chromatin.

Front

What is a karyotype?

Back

A karyotype is the number and appearance of chromosomes in the nucleus of a eukaryotic cell.

Front

What is the difference between DNA and RNA?

Back

DNA contains deoxyribose sugar and thymine, while RNA contains ribose sugar and uracil.

Front

What is the process of DNA replication?

Back

DNA replication is the process by which a DNA molecule makes a copy of itself before cell division.