Type of bonding in which an atom loses or gains electrons:
A) Ionic
B) Covalent
C) London
D) Hydrogen
Ans: A) Ionic
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Which of the following is TRUE of a morphogen?
A. It is a signaling molecule required for cell-to-cell contact within the embryo. B. It is a signaling molecule that induces the differentiation of cells within the embryo. C. It is a signaling molecule that induces blastulation of the developing embryo. D. It is a signaling molecule that induces implantation of the embryo into the uterus of mammals. E. It is a signaling molecule that separates out cytoplasmic factors to their respective cells within the developing embryo.
Select the that best matches each factor .
A) catalyzes formation of peptide bonds B) UUU C) contains information in the form of anticodons D) binds to Pribnow box E) catalyzes disassembly of the translation complex F) involved in transcription G) associated with the binding of mRNA in the ribosome H) catalyzes disassembly of the transcription complex I) involved in replication J) catalyzes translocation of the ribosome K) binds to Shine–Delgarno sequence L) catalyzes the formation of amino acid-AMP M) AUG N) associated with the binding of tRNA in the ribosome O) UAG 1) start codon 2) 30S ribosomal subunit 3) tRNA 4) peptidyl transferase 5) aminoacyl-tRNA synthetase 6) release factor 7) stop codon 8) elongation factor G 9) 16S rRNA 10) RNA polymerase
All fungi can reproduce via ____
a. asci b. pollen c. spores d. conidia e. basidia
The volume of air remaining in the lungs after maximal expiration is the:a
vital capacity. b. tidal volume. c. tidal capacity. d. residual capacity. e. residual volume.