In cucumbers, heart-shaped leaves (h) are recessive to normal leaves (h) and having numerous fruit spines (n) is recessive to having few fruit spines (n). the genes for leaf shape and number of spines are located on the same chromosome; findings from mapping experiments indicate that they are 32.6 m. u. apart. a cucumber plant having heart-shaped leaves and numerous spines is crossed with a plant that is homozygous for normal leaves and few spines. the f1 progeny are then crossed with plants that have heart-shaped leaves and numerous spines (testcross). 5a. create a drawing to indicate the chromosomes, gene arrangements and phenotypes of the f1 parents and the nonrecombinant and recombinant progeny produced from the testcross. (8 points)

Transpiration is the evaporation of water from

Which term best describes a community in which people work mostly in factories? a.agricultural. b.hunting and gathering. c.domesticated. industrial.

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.