Three loci, yellow, singed, and crumpled, were observed for mitotic crossing over. single spots for yellow and single spots for crumpled were found, as well as twin spots for yellow and singed. no other patterns were observed. what is the order of these three loci and the centromere (assume that all are linked)? a. y - s-cent - cr b. y - cr-s-cent c. cr-s - cent - y d. s-cr - y - cent

There are six elements that make up most of the human body. which of the following is not one of these six elements?

Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.