If nondisjunction occurs during meiosis, a)only two gametes may form instead of four b)some gametes may have an extra copy of some genes c) the gametes cannot join another to form an organism d) the gametes redistribute chromosomes after meiosis

Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?