In Caenorhabditis elegans vulval development, the fate of the progenitor cells is dependent on their proximity to the ____ cell, which secretes epidermal growth factor

Fill in the blank with the appropriate word.


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Biology & Microbiology

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The Baltimore Scheme to classify viruses contains a total of ________ groups based on ________

A) four / genome composition B) four / genome composition and transcription mechanism C) seven / genome composition D) seven / genome composition and transcription mechanism

Biology & Microbiology

Transformation is the process where DNA is extracted from a plasmid

A. true B. false

Biology & Microbiology

You have spent time working with a population of beetles. Males range in size from 2-6 cm in length. You realize that the females only mate with males that measure less than 3 cm long

If you measured allele frequencies at a single locus that contributes to overall length, would you expect this population to be in H-W equilibrium from one generation to the next? A. yes B. no

Biology & Microbiology

The type of mutation that alters the nucleotide sequence of a gene but does not alter the amino acid sequence of the protein produced from that gene is called ________ mutation

A) missense B) silent C) nonsense D) frameshift

Biology & Microbiology