When the Pax6 Transcription Factor Is Transferred from a Donor

question 154

Multiple Choice

When the Pax6 transcription factor is transferred from a donor individual of one species into the genome of a recipient individual of a different species, it:

• A)usually has no detectable effect.
• B)represses eye development.
• C)induces the development of eyes similar to those in the donor species.
• D)induces the development of eyes similar to those in the recipient species.
• E)induces the development of eyes intermediate between those in the donor species and those in the recipient species.

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Definitions:

Ductus Deferens

A muscular tube that carries sperm from the epididymis to the ejaculatory duct, involved in the transport of sperm during ejaculation.

Spermatic Artery

A blood vessel that supplies blood to the testis and the ductus deferens.

Spermatic Vein

A vein draining blood from the testicle to the inferior vena cava or the left renal vein, involved in the temperature regulation of the testes.

Vagina

The muscular tube leading from the external genitals to the cervix of the uterus in women and most female mammals.