DNA Flashcard

Front

What is Chargaff's rule regarding DNA base pairing?

Back

In DNA, the amount of adenine (A) is equal to the amount of thymine (T), and the amount of guanine (G) is equal to the amount of cytosine (C).

Front

If a DNA sample has 20% adenine, what percentage of thymine is present?

Back

20%.

Front

Which nitrogenous base pairs with adenine in DNA?

Back

Thymine.

Front

Who was the first scientist to confirm the three-dimensional structure of DNA using x-ray diffraction?

Back

Rosalind Franklin.

Front

What type of bond joins nitrogenous bases in DNA?

Back

Hydrogen bonds.

Front

What are the four nitrogenous bases found in DNA?

Back

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

Front

What is the complementary DNA sequence for the strand ATG TGA CAG?

Back

TAC ACT GTC.

Front

What is the structure of DNA?

Back

DNA is a double helix composed of two strands of nucleotides.

Front

What are nucleotides made of?

Back

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

Front

What is the function of DNA?

Back

DNA stores genetic information and provides instructions for the development and functioning of living organisms.