A grouping of three nucleotides code for one amino acid
__________________ Indicate whether the statement is true or false.
True
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An early contributor to the understanding of nitrogen fixation was
A. Hooke. B. Pasteur. C. Winogradsky. D. Beijerinck.
Imprinting affects the phenotype when
A) both alleles of a gene are imprinted. B) both alleles of a gene are inactivated or deleted. C) one allele is imprinted and the other is inactivated or deleted. D) an embryo arises from two female genomes or two male genomes.
Which of the following would you NOT expect to find in phloem sap?
a. Carbohydrates. b. Hormones. c. Water. d. Amino acids. e. Nitrate.
Before cells divide into two daughter cells, it must first duplicate its
A. entire genome. B. array of enzymes. C. cell membrane structure. D. cytoplasmic contents. E. All of the answer choices are correct.