All atoms tend to fill their outer energy levels with the maximum number of electrons, usually eight. Depending on whether atoms satisfy the octet rule will predict:
A. the chemical behavior of the atoms.
B. whether they will be found in nature.
C. whether they will dissolve in water.
D. their radioactive energy.
A
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Microphthalmia is a condition that causes chickens to have very small eyes, but it only appears in hens. The condition is autosomal recessive. Microphthalmia is sex-influenced and not sex-limited because
A) it is recessive in males and dominant in females. B) sex-influenced traits affect structures or functions that are present only in males or only in females. C) it is not transmitted on a sex chromosome. D) sex-limited traits affect structures or functions that are present only in males or only in females.
The energy for translocation during translation comes from
a. formation of the peptide bond. b. breaking of bonds between tRNA and mRNA. c. breaking of bonds between mRNA and the ribosome. d. removal of a tRNA from the E site. e. hydrolysis of GTP.
What tissue comprises the outer bark of woody plants?
a. ground tissue b. epidermis c. phloem d. periderm e. xylem
A Ti plasmid carrying a foreign gene is inserted into which bacterium that infects a plant cell?
A. Phytomyxea B. Agrobacterium tumefaciens C. Proteobacteria D. Verticillium E. Arabidopsis thaliana