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Homologous chromosomes are inherited from two parents while sister chromatids are generated by DNA replication
DNA replicates conservatively, which means that one of the two daughter double helices is "old" and the other is "new."
Which of these cellular components are not used during translation?
IV.DNA dependent RNA Polymerase
You assess the nucleic acids from a novel virus to determine the base composition. You obtain the following results: 35% A, 15% T, 25% G, and 25% C. What is the most likely physical nature of the genome from this virus?
A. single-stranded DNA
Shorter molecules of DNA will migrate faster through an agarose genes than longer molecules
A mutation results in a change of an Alanine amino acid to a Valine amino acid at position 9 of a protein. Which term best describes this mutation?
You perform an Ames test to determine which compound X causes mutations or not. You grow an auxotrophic strain of bacteria on three plates; one with no compound X, one with just compound X and one with compound X mixed with liver enzymes. You find many more colonies on the plates with compound X and with compound X plus liver enzymes compared to the control plate. Which of the following describes the best interpretation of the results?
Compound X is mutagenic regardless of whether it has been processed by liver enzymes.
Which of the following components is not needed for a PCR reaction?
cDNA library will contain fragments of both genes and intergenic sequences (the regions in between genes)
Which of the following is closest to the number of genes encoded in the human genome?
Retrotransposons often contain terminal inverted repeats that provide a binding site for the transposase enzyme.
Which of the following is not a correct description of autonomous and non-autonomous DNA transposons?
Non-autonomous elements lack terminal inverted repeats.
Which of the following is not required for a Sanger sequencing reaction?
You would like to measure the expression of all genes. Which of the following methods would be the most useful?
Which of the following genotypes would exhibit constitutive expression of a functional lacZ gene?
The process of attenuation that is involved in regulating expression of genes important for tryptophan biosynthesis in E. coli is likely important for regulation of tryptophan biosynthesis in human too.
Peptide hormones typically cause changes in gene expression by binding with membrane-bound receptors
Transcription factors contain multiple domains. Which of the following are not typically found in transcription factors.
Which of the following factors are not associated with increased risk for cancer?
Inheritance of a loss-of-function mutation in an oncogene from a parent
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