Small circular RNAs called ________ are plant pathogens
A) plasmids
B) viruses
C) viroids
D) prions
E) phages
C
You might also like to view...
Homologous chromosomes undergo recombination during
a. prophase II. b. metaphase I. c. metaphase II. d. both prophase I and II. e. prophase I.
You decide to repeat the Meselson-Stahl experiment, except this time you plan to grow the E. coli cells on light 14N medium for many generations and then transfer them to heavy 15N medium and allow them to grow for 2 additional generations (2 rounds of DNA replication). If the conservative model of DNA replication was correct, what is the expected distribution of DNA in the density gradient after two rounds of replication?
A. One band of light density. B. One band of intermediate density. C. One band of light density and one band of intermediate density. D. One band of light density and one band of heavy density. E. One band of heavy density.
The probability of parents with the genotypes (Mm) ´ (Mm) having an offspring with the genotype (mm) is
A. 1/2. B. 1/4. C. 3/8. D. 0.
Put the following terms in order from first to last in development.
A. zygote ? morula ? blastula ? gastrula B. morula ? blastula ? gastrula ? zygote C. blastula ? zygote ? gastrula ? morula D. zygote ? morula ? gastrula ? blastula