Flashcardizz 13.2

Front

What type of bond connects the nitrogenous bases in the middle of the DNA molecule?

Back

Hydrogen bonds are the type of bond that connects the nitrogenous bases in the middle of the DNA molecule.

Front

According to Chargaff’s rules, if the percentage of adenine in a DNA molecule is 30%, what is the percentage of thymine?

Back

According to Chargaff's rules, the percentage of thymine is also 30%.

Front

What are nucleic acids made up of?

Back

Nucleic acids are made up of nucleotides.

Front

What is the orientation of the two strands in a DNA double helix called?

Back

The orientation of the two strands in a DNA double helix is called antiparallel.

Front

What is the overall shape of a DNA molecule?

Back

The overall shape of a DNA molecule is a double helix.

Front

What are the four nitrogenous bases found in DNA?

Back

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

Front

What is the function of DNA?

Back

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

Front

What is the role of hydrogen bonds in DNA structure?

Back

Hydrogen bonds hold the two strands of the DNA double helix together by connecting complementary nitrogenous bases.

Front

What is the significance of Chargaff's rules in DNA structure?

Back

Chargaff's rules state that in DNA, the amount of adenine equals thymine and the amount of cytosine equals guanine, which helps maintain the double helix structure.

Front

What is a nucleotide composed of?

Back

A nucleotide is composed of a phosphate group, a sugar molecule, and a nitrogenous base.