AP Biology: Unit 6 Review

Front

What is gene expression?

Back

Gene expression is the ability for a gene to be transcribed.

Front

What are the components of DNA nucleotides?

Back

DNA nucleotides consist of a phosphate group, a deoxyribose sugar, and a nitrogenous base (adenine, thymine, cytosine, or guanine).

Front

Which sugar is not found in DNA nucleotides?

Back

Ribose sugar is not a component of DNA nucleotides; it is found in RNA nucleotides.

Front

What are base pairing rules in DNA?

Back

In DNA, adenine pairs with thymine (A-T) and cytosine pairs with guanine (C-G).

Front

What is the complementary DNA sequence to 5' - CAGGT - 3'?

Back

The complementary DNA sequence is 3' - GTCCA - 5'.

Front

What is a codon?

Back

A codon is a sequence of three nucleotides on mRNA that codes for a specific amino acid.

Front

What is the role of mRNA in protein synthesis?

Back

mRNA carries the genetic information from DNA to the ribosome, where it is translated into a polypeptide.

Front

What is translation in the context of protein synthesis?

Back

Translation is the process where a polypeptide sequence is produced from a sequence of mRNA codons.

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 function of ribosomes in translation?

Back

Ribosomes facilitate the binding of mRNA and tRNA, allowing for the synthesis of polypeptides.