Restriction maps of two alleles of the cystic fibrosis gene are shown below. the restriction enzyme ecor1 cuts the normal allele at the site indicated with a vertical arrow.
which fragment(s) would be detected on an electrophoresis gel following ecor1 digestion of the region from a person who is heterozygous for the two alleles? (picture atached)
1 kb only
4 kb only
5 kb only
1 and 4 kb only
1, 4, and 5 kb

What is being converted during photosynthesis

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.

The most effective way to provide children with safety messages is to