Scientists studying the passage of genetic materials of the T2 bacteria phage during infection prepared two batches of phages. Batch I is prepared in the presence of 35S. Batch II is prepared in the presence of 32P. Scientists used the two batches of phages to infect bacteria grown in medium that did not contain 35S or 32P, and then isolated the progenies. What proportions of the progenies of Batch I and Batch II phages would be labeled

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

14) whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.

What property of water provides for appropriate sugar, salt, and amino acid levels to be present and carried in the blood of animals to be delivered to cells