Week 26 Fun Friday Review for Unit 6 Exam

Front

What is a gene family?

Back

A gene family is a group of related genes that have similar sequences and functions, often arising from gene duplication events.

Front

What are pseudogenes?

Back

Pseudogenes are nonfunctional sequences of DNA that resemble functional genes but do not produce functional products.

Front

What is gene duplication?

Back

Gene duplication is a process by which a segment of DNA is copied, resulting in two identical or similar genes.

Front

What is the role of transcription control elements?

Back

Transcription control elements are sequences in DNA that regulate the transcription of genes by binding transcription factors.

Front

What is an operon?

Back

An operon is a cluster of genes under the control of a single promoter, allowing coordinated regulation of gene expression.

Front

What is a repressible operon?

Back

A repressible operon is one that is normally active but can be turned off by a repressor molecule when a specific metabolite is present.

Front

What is an inducible operon?

Back

An inducible operon is one that is normally inactive but can be turned on by an inducer molecule.

Front

What is the function of anticodons?

Back

Anticodons are sequences of three nucleotides in tRNA that pair with complementary codons in mRNA during protein synthesis.

Front

What is the effect of acetylation of histone proteins?

Back

Acetylation of histone proteins leads to a more open chromatin structure, increasing the rate of transcription.

Front

What are inducers?

Back

Inducers are molecules that promote the expression of specific genes by binding to repressors or transcription factors.