Which of the following forms the skeleton of invertebrate chordates?

a. pharynx
b. neural crest
c. oral hood
d. notochord
e. cranium


D

Biology & Microbiology

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Steroid hormomes are an example of an effector which regulates regulatory transcription factor activity

Indicate whether the statement is true or false

Biology & Microbiology

Meiosis occurs in the ____

a. testes only b. ovaries only c. somatic cells d. synaptonemal complex e. gonads

Biology & Microbiology

Which of the following statements is

INCORRECT?

a. Viruses are not able to move by themselves. b. Viruses are not able to reproduce by themselves. c. Viruses are not structurally organized. d. Viruses are nonliving particles. e. Viruses contain instructions to manufacture themselves

Biology & Microbiology

Which of the following is the binding site for RNA

polymerase on the DNA molecule? a. structural gene 1 b. repressor gene c. promoter sequence d. operator sequence e. region between an operator and the first structural gene

Biology & Microbiology