BIO 181 - Genetic Mutations and Biotechnology

chromosomal

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Terms in this set (21)

The two types of mutations are point and _____.

substitution, deletion, insertion

The three types of point mutation are _____, _____, and _____.

Substitution is a type of point mutation that may change _____ resulting in a different functioning or nonfunctioning protein.

Substitution occurs due to the changing of a _____ in the DNA code.

Tay-Sachs, cystic fibrosis

Two examples of genetic disorders related to substitution are _____ and _____.

Down syndrome and Turner syndrome

Two examples of chromosomal mutations are _____ and _____.

An individual with Down Syndrome has _____ copies of chromosome 21, rather than two.

neutral, beneficial

Mutations can be harmful, _____, or _____.

operon, transcription

Gene activation: prokaryoates lack a(n) _____ system. So, regulation occurs during _____.

Monrod, glucose, repressor protein

How is gene expression regulated? In 1940, Francois Jacob and Jacques_____ found that E. coli can digest _____ all the time. They can also digest lactose sometimes. When E. coli are grown in glucose, a _____ binds to DNA preventing RNA polymerase from transcribing the lactose digesting enzymes. When E. coli are grown in lactose, the lactose molecule binds to the repressor protein. RNA polymerase is free to transcribe the lactose-digesting proteins.