Autosomes form matched homologous pairs
Chromatid- 1 of 2 identical halves of a replicated chromosome
Hemizygous- Having only a single copy of a gene in diploid
organism. All of the gene on the single X chromosome in the male
are in the hemizygous state.
acentric fragment: a portion of a chromatid or chromosome that lacks a
additive genetic variance: genetic variance atributed to the average
effects of substituting one allele for another at a given locus, or at the
multiple loci governing a pol
BIO 230 Chapter 11 Regulation of Gene Expression in Bacteria and Their Viruses
Terms to get familiar with outside of class
o Activator: Protein when bound to a cis acting regulatory DNA element,
such as a promoter or an enhancer, activates transcription o
Formation of the peptide bond could be described as:
A) a spontaneous reaction between two peptides, forming a covalent bond.
B) a ribosome-catalyzed process occurring in the nucleus.
C) a tRNA catalyzed process.
D) a ribosome-catalyzed dehydration reac
BIO 230 Chapter 9
Review of transcription
What are the differences between prokaryotic and eukaryotic transcription?
o All RNA species are synthesized by holoenzyme RNA polymerase (pro)
o mRNA is translated during transcription (pro)
o Sigma factors (pro)
BIO 230 Chapter 12
Chapter 11 Review
o What role does lactose play in the lac operon?
It activates the lac operon by binding to the repressor on the
allosteric site which causes an allosteric transition. When you have
an allosteric transition in a repres
BIO 230 Chapter 9 Terms
active site the part of a protein that must be maintained in a specific shape if the
protein is to be functional; for example, iin an enzyme, the part to which the
amino acid a peptide; the basic building block of p
Chapters 4 and 6
1. In fruit flies, the gene that is called the sex-switch gene is
B. [_]zinc finger gene
C. [X] sex lethal
2. If 83 individuals are homozygous for the recessive trait, eyeless,
and 67 of the individ
acentric fragment: a portion of a chromatid or chromosome that lacks a centromere
additive genetic variance: genetic variance attributed to the average effects of
substituting one allele for another at a given locus, or at the multiple loci governing a
1. A bacterium that is unable to grow on minimal medium is said to be:
2. A strain of E. coli has the genotype leu lac. leu is the abbreviation for the synthesis of the ami