Biology Unit 6 (Ch. 13-14) STUDY GUIDE

Front

Which base does not exist in DNA?

Back

Uracil (U) does not exist in DNA; it is found in RNA.

Front

What is the complementary DNA strand for CCTAGCT?

Back

The complementary DNA strand is GGATCGA.

Front

What encodes the unique combination of characteristics in an organism?

Back

DNA encodes the unique combination of characteristics in an organism.

Front

Which type of RNA is a direct copy of the genetic code?

Back

mRNA (messenger RNA) is a direct copy of the genetic code.

Front

What are the base pairs in DNA?

Back

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

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

Nucleotides are made of a sugar, a phosphate group, and a nitrogenous base.

Front

What is the function of tRNA?

Back

tRNA (transfer RNA) brings amino acids to the ribosome during protein synthesis.

Front

What is the role of ribosomes in protein synthesis?

Back

Ribosomes are the sites where proteins are synthesized from amino acids.

Front

What is transcription in the context of genetics?

Back

Transcription is the process of copying a segment of DNA into RNA.