Mutations, Gene Expression, Heredity, and Random Review

Which of the following could increase the speed of gene transcription?

• A TATA box is not present in the operon

• Alternate splicing of pre-mRNA

• A missense mutation

• An activator binding to an enhancer

Which of the following point mutations would have the greatest impact on protein function?

• Nonsense mutation at the beginning of a gene

• Missense mutation at the beginning of a gene

• Silent mutation at the beginning of a gene

• Missense mutation at the end of a gene

Which of the following mutations would likely have the greatest impact on protein function?

• Frameshift mutation at the beginning

• Point mutation causing missense at the beginning

• Point mutation causing nonsense at the end

• Point mutation causing missense at the end

What phrase describes a mutation that changes the organization of nitrogenous bases into codons, causing a stop codon to occur early in the transcript?

• Frameshift causing immediate nonsense

• Frameshift causing immediate missense

• Point mutation causing delayed nonsense

• Point mutation causing immediate missense

Which of the following would NOT increase the rate of protein production from a gene?

• Acetylation

• Methylation

• High concentration of transcription factors

• Low concentration of corepressors

What is the immediate driving force behind ATP synthesis?

• The actions of the electron transport chain

• The hydrogen ion concentration gradient

• The energy stored in glucose's covalent bonds

• The repeated oxidation during Kreb's cycle

What inheritance pattern is illustrated in this pedigree?

• Autosomal Dominant

• Autosomal Recessive

• Sex-Linked Recessive

• Co-dominant

Which inheritance pattern is illustrated in this pedigree?

• Autosomal Dominant

• Autosomal Recessive

• Sex linked recessive

• Co-dominant

You may inherit any 2 allele combination of the A, B, and i alleles for blood type. (ex. Ai, ii) What inheritance pattern is occurring here?

• Incomplete Dominance

• Polygenic Inheritance

• Mendelian Inheritance

• Multiple Alleles

When two genes are described as "linked" they are...

• Close together on a chromosome

• Separate alleles on a pair of homologous chromosomes

• Only located on the X chromosome

• Inherited as a result of nondisjunction in gametes