The coded information of a DNA molecule is determined by the- •sequence of amino acids
•sequence of nitrogenous bases
•number of enzymes
•sequence of sugar-phosphate units

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?

Genes that come together with different alleles are heterozygous. homozygous. genotype. segregated.

What would be he the strand of complementary dna produced be the strand of dna shown below> tcg aag