True or false,"chemical formula are a symbolic description of the type of atoms contained in a substance."

If the coding part of an mrna molecule is 1800 nucleotides (bases) in length, this molecule will contain codons and code for a polypeptide that is amino acids long.

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

Consider the classification levels of a human. eukarya ,animalia ,chordata ,mammalia ,primates, hominidae ,homo ,sapiens .which is the most specific taxonomic level in the classification system above? a sapiens b homo c hominidae d primates