Which individual is not an Arachnid?

a. Spiders
b. Mites
c. Ticks
d. Scorpions
e. Horseshoe crabs


e

Biology & Microbiology

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Which of the following is not a feature of the "torpedo" model for RNA polymerase II transcription termination?

A. Conformational changes occur in the Pol II elongation complex when elongation factors dissociate. B. RNA is cleaved downstream from the poly(A) site. C. Exonuclease degradation of RNA promotes Pol II release. D. Pol II remains associated with the DNA template after mRNA synthesis. E. All of the choices given are a feature of the "torpedo" model.

Biology & Microbiology

Unspecialized structures in embryos that develop into female sex organs are the

A) Mullerian ducts. B) Wolffian ducts. C) oocytes. D) Barr bodies.

Biology & Microbiology

When blood returns from the pulmonary circuit, it first enters the ____ chamber of the heart

a. left atrium b. left ventricle c. right atrium d. right ventricle e. both the left atrium and the right atrium

Biology & Microbiology

Which reproductive isolating mechanism is mostly restricted to animals?

A) behavioral B) geographic C) temporal D) ecological E) hybrid infertility

Biology & Microbiology