Transgenic animals made by pronuclear injection can be limited for studies of the links between genes and disease because
A) the transgene allele must be dominant to the normal, endogenous allele and some diseases are caused by recessive mutations.
B) the transgene allele must be recessive to the normal, endogenous allele and some diseases are caused by dominant mutations.
C) all diseases are caused by mutations in multiple genes.
D) diseases are not caused by specific alleles of a gene, but by posttranslational modifications of proteins.
A) the transgene allele must be dominant to the normal, endogenous allele and some diseases are caused by recessive mutations.
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They might be conducting such an experiment to _____
A) find the location of a particular gene in the human genome B) prepare to isolate the chromosome on which a particular gene of interest C) find which of the students has which alleles D) measure the expression of one or more genes in their genomes E) determine if any of them carries an extra sex chromosome
What would be the advantage of having multiple sigma factors that each could be produced under different stress conditions in E. coli?
What will be an ideal response?
The basic subunits of DNA are the ________
Fill in the blank(s) with correct word
What would you expect to occur if the shugoshin protein was degraded sooner than normal during meiosis?
a) Sister chromatids would not separate at all. b) Sister chromatids might separate during anaphase I. c) There would be no microtubule spindle fibers. d) Microtubules would not attach to chromosomes.