Pax-6 is a gene that is involved in eye formation in many invertebrates, such as Drosophila. Pax-6 is also found in vertebrates. A Pax-6 gene from a mouse can be expressed in a fly and the protein (PAX-6 ) leads to a compound fly eye
This information suggests which of the following? A) Pax-6 genes are identical in nucleotide sequence.
B) PAX-6 proteins have identical amino acid sequences.
C) Pax-6 is highly conserved and shows shared evolutionary ancestry.
D) PAX-6 proteins are different for formation of different kinds of eyes.
C
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a. RNA molecules b. proteins c. DNA molecules d. transposable elements e. codons
Signaling molecules involved in the paracrine and autocrine signaling:
a) travel through the circulatory system b) remain attached to the plasma membrane c) travel by diffusion
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a. gymnosperms and angiosperms b. angiosperms only c. gymnosperms only d. seedless vascular plants
An mRNA molecule is synthesized by __________.
A) replication B) duplication C) transcription D) translation