In the alternation of generations life cycle fertilization requires two a. sporophytes. b. gametophytes. c. gametes. d. spores.  

What processes take place before the mature mrna exits the nucleus?

Describe the structure of amino acid, including what makes amino acids different from eachother

Which allele is expressed in the first-generation offspring of parents that have two different traits? a. the segregated allele b. the true-breeding allele c. the recessive allele d. the dominant allele