A recessive allele usually results from a mutation that

a. disrupts expression of the gene.

b. alters the structure of the encoded protein leading to gain of function.

c. alters the structure of the encoded protein leading to loss of function.

d. increases the activity of the encoded protein.

TLS Online TPP Program

#Question id: 4352

#Unit 3. Fundamental Processes

How does extracellular glucose inhibit transcription of the lac operon?

TLS Online TPP Program

#Question id: 4353

#Unit 3. Fundamental Processes

The cAMP receptor protein (CRP) is said to be responsible for positive regulation of the lac operon because __.

TLS Online TPP Program

#Question id: 4354

#Unit 3. Fundamental Processes

Which of the following statements correctly describes the primary difference between enhancers and proximal control elements?

TLS Online TPP Program

#Question id: 4355

#Unit 3. Fundamental Processes

The reason for differences in the sets of proteins expressed in a nerve and a pancreatic cell of the same individual is that nerve and pancreatic cells contain different __.

TLS Online TPP Program

#Question id: 4356

#Unit 3. Fundamental Processes

Gene expression is often assayed by measuring the level of mRNA produced from a gene. What level of the control of gene expression can by analyzed by this type of assay?

TLS Online TPP Program

#Question id: 4357

#Unit 3. Fundamental Processes

Which of the following processes would allow the detection of alternative splicing of transcripts from a given gene?