You genetically engineer nonadhesive cells to express one variety of cadherins and then mix the cells in various combinations. you then monitor their interactions. what do you observe?

a. the genetically engineered cells adhered preferentially to cells expressing one of the other cadherins.
b. the genetically engineered cells adhered preferentially to cells expressing the same cadherins.
c. the genetically engineered cells did not stick to any other cells.
d. the genetically engineered cells died.
e. the genetically engineered cells migrated to a different location.

How is mitosis different in plants and animals? a. in animals, the cell membrane pinches together. b. in plants, the dna is one circular chromosomes. c. in plants, there are no sister chromatids. d. in animals, a new cell wall forms.

Approximately 90% of all cases of polycystic kidney disease are inherited in an autosomal dominant fashion. the disease is typically related to mutations to genes (pkd1 and pkd2). pkd genes can be found on chromosome 16. the disease occurs in approximately 1: 800 to 1: 1000 people. here is a hypothetical example. the dominant allele d will cause the development of pkd. the recessive allele is known as d. what genotypes would correspond to suffering from pkd? dd, dd what genotypes would correspond to being normal (not suffering from pkd)? dd consider that 1: 1,000 people have pkd in your population of 325million. consider that pkd is inherited in an autosomal dominant fashion. show you math for all of the following questions: what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is p? what is q? how many people in your population would have pkd?

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d