Genes that are not required for survival, but are likely to be beneficial to the organism, are called _________
A. essential genes
B. lethal alleles
C. semilethal alleles
D. nonessential genes
E. conditional lethal alleles
D
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A testcross consists of a cross
a. of two pure-breeding forms to find out which form of a gene is dominant. b. between two unknown forms to determine their genotypes. c. between an offspring and its homozygous dominant parent. d. of an organism of dominant phenotype but unknown genotype to an individual that is homozygous recessive for that trait. e. of two F2 individuals to produce an F3 generation.
Which of the following are heterotrophs?
a. primary carnivores b. herbivores c. detritivores d. decomposers e. all of these
What type of vaccine involves host synthesis of viral antigens?
A) conjugated vaccine B) subunit vaccine C) nucleic acid vaccine D) attenuated whole-agent vaccine E) toxoid vaccine
Which is the more correct definition of "predatory lending"?