The genetic code is made up of units (codons), each of which consists of how many nucleotides?
a. 2
b. 3
c. 5
d. 6
e. 12
B
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The law of segregation states that
A) when two identical alleles come together, complete dominance occurs in terms of phenotype. B) genes for different traits assort independently of each other during the formation of egg and sperm. C) genes separate from each other during gamete formation so that each sperm and egg receive only one allele from each pair. D) when different alleles for the same trait come together, one allele will be recessive to another. E) different alleles for the same gene occupy unique loci on sister chromatids.
Given that most ligands form covalent bonds with their associated receptors, these complexes are more or less permanent and can only be broken through the hydrolysis of ATP.
a. true b. false
Which category contains the greatest number of different types of organisms?
A. genus B. family C. phylum D. Class E. Kingdom
What is the name of the meristematic tissue that gives rise to future vascular tissue?
A. Procambium B. Dermal tissue C. Ground meristem D. Cork cambium E. Protoderm