In yeast, there are three gene products required to synthesize the amino acid lysine. you cross two haploid lysine auxotrophs to form a diploid. the diploid fails to grow on plates lacking lysine. which of the following can you definitively conclude?
a) the haploid strains have mutations in the same gene.
b) the haploid strains have mutations in different genes.
c) the haploid strains have identical mutations in the same genes.
d) the haploid strains have identical mutations in different genes.
e) the haploid strains must belong to the complementation group encoding the first enzyme in the biosynthetic pathway.

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explanation:

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in addition to spreading humanist ideas, erasmus has contributed to criticism of corruption in the church.

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation:

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.