Based on its chemical formula, which of the following substances is an organic compound? Urea, CH4N2O Urea, CH 4, N 2 O Ammonium sulfide, (NH4)2S Ammonium sulfide, (NH 4 ) 2 S, Silane, SiH4 Silane, SiH 4, Sodium chloride, NaCl Sodium chloride, NaCl

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

Select the correct answer. tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d

What is the problem in this article? what solution does the article propose?