DNA & RNA (Chapter 13 &14)

Front

What are the three components of a nucleotide?

Back

sugar, phosphate, nitrogen base

Front

RNA contains which sugar?

Back

ribose

Front

What did Chargaff discover about the structure of DNA?

Back

He discovered that A=T and G=C.

Front

What type of bond joins nitrogenous bases?

Back

hydrogen bonds

Front

What is the difference between DNA and RNA in terms of bases?

Back

RNA contains uracil in place of thymine.

Front

What is the structure of DNA?

Back

DNA is a double helix.

Front

What are the four nitrogenous bases in DNA?

Back

adenine, thymine, cytosine, guanine

Front

What are the four nitrogenous bases in RNA?

Back

adenine, uracil, cytosine, guanine

Front

What is the function of mRNA?

Back

mRNA carries genetic information from DNA to the ribosome for protein synthesis.

Front

What is the role of tRNA in protein synthesis?

Back

tRNA transports amino acids to the ribosome during translation.