In a developing embryo, different cells begin to transcribe different master genes, depending on where they fall within a gradient of ________
a. protein products of embryonic mRNAs
b. homeodomains
c. temperature
d. protein products of maternal mRNAs
d
Biology & Microbiology
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The ____ lineage contains the fleshy-finned fishes, with fins supported by muscles and an internal bony skeleton
a. Petromyzontoidea b. Chondrichthyes c. Actinopterygii d. Myxinoidea e. Sarcopterygii
Biology & Microbiology
What is the LEAST useful indicator of an evolutionary relationship?
a. base sequence in DNA b. amino acid sequence in a protein c. similar ecological requirements d. similar embryonic development e. similar polypeptides
Biology & Microbiology
Cells involved in bone resorption
What will be an ideal response?
Biology & Microbiology
Briefly describe the structure of a honeybee society. What are the benefits associated with this organization? What will be an ideal response?
Biology & Microbiology