Which of the following explains why snakes do not have forelimbs or necks?

a. A mutation causes the expression of Hoxc6 to extend into a more backward region of the animal's body.
b. A mutation causes the expression of Hoxc8 to extend into a more backward region of the animal's body.
c. A mutation causes the expression of Hoxc8 to extend into a more forward region of the animal's body.
d. A mutation causes the expression of Hoxc6 to extend into a more forward region of the anim


Answer: c. A mutation causes the expression of Hoxc8 to extend into a more forward region of the animal's body.

Biology & Microbiology

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Slow-growing NTM whose colonies produce no pigment, whether they are grown in the dark or the light, are referred to as:

a. scotochromogens. b. photochromogens. c. nonphotochromogens. d. chromogenicums.

Biology & Microbiology

When an incorrect base is added during DNA replication, what should happen?

a. DNA replication stops and starts over from the beginning. b. The incorrect bases are removed and replaced by the correct bases and replication continues. c. RNA polymerase catches the error and signals DNA polymerase to correct the issue. d. The incorrect bases are left in because eukaryotes do not have a way to correct errors.

Biology & Microbiology

If an mRNA carries AUCGUG as a sequence,

what would be the sequence of the DNA complement to the sequence of DNA that is the complement to the mRNA?

a. ATCGTG b. TCGCAC c. CGATCT d. GCTACA e. UAGCAC

Biology & Microbiology

Distinguish between the functions of the basal apparatus, activators, and coactivators

What will be an ideal response?

Biology & Microbiology