Unit 4 and 5 Test - Study Guide - Pre-AP - Updated

Front

What are the components of a nucleotide?

Back

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

Front

Which component is NOT part of a nucleotide?

Back

Fatty acid is not a component of a nucleotide.

Front

What is the role of helicase in DNA replication?

Back

Helicase is the enzyme responsible for unwinding the DNA double helix.

Front

What occurs during translation in the ribosome?

Back

Amino acid chains are assembled from information in the mRNA.

Front

What are tumors?

Back

Tumors are abnormal tissue masses formed by the uncontrolled multiplication of cancerous cells.

Front

What is the function of DNA polymerase?

Back

DNA polymerase is responsible for synthesizing new DNA strands during replication.

Front

What is the role of tRNA in protein synthesis?

Back

tRNA transports amino acids to the ribosome, where they are added to the growing polypeptide chain.

Front

Define transcription in the context of genetics.

Back

Transcription is the process of copying information from DNA to RNA.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains deoxyribose sugar, while RNA is single-stranded and contains ribose sugar.

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can lead to changes in protein structure and function.