Giving 20 ! ! will make !

using the image below, identify which of the statements is true.

a. in part a the cell is 2n, and in part b the cell is 4n.

b. all of the above are true.

c. part a in the image is the chromosome before s phase of interphase, and part b is after dna replication has occurred.

d. the image shows a homologous pair chromosome 4 in part a, and sister chromatids in part b.

The construction of phylogenetic trees is a mapping out the proposed divisions and common ancestors of all living species. traditionally, these trees have been built using morphological data, such as appearance and embryology. recently, it has been possible to construct these trees using molecular data. phylogenetic trees based on different types of information agree with each: that there is strong evidence of a real underlying common descent. this phylogenic tree is composed based on molecular data (rrna). what statements can we infer are true about the organisms throughout the tree? because the tree is rooted, all branches share a common ancestor. all organisms have some sort of cellular structure/organization. all eukaryotes evolved from bacteria. since the organisms contain rna, they share the same dna. if the organisms contain rna, the share the same four nitrogen bases.

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.

Which statement best compares aerobic and anaerobic respiration