Which kind of DNA should provide the best molecular clock for gauging the evolutionary
relatedness of several species whose common ancestor became extinct billions of years ago?
a. that coding for ribosomal RNA
b. intronic DNA belonging to a gene whose product performs a crucial function
c. paralogous DNA that has lost its function (i. e., no longer codes for functional
gene product)
d. mitochondrial DNA
e. exonic DNA that codes for a non-crucial part of a polypeptide

answer; ///i do believe that the correct answer is (c) hold atoms together to form compound;

materials water oxygen those are the things i can think of in this moment.

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).