If an allele must be present on both the matermal and paternal chromosomes to affect the phenotype, the allele is said to be
a. dominant
b. recessive
c. complementary
d. heterozygous

the correct answer is B

Explanation:

If there is a dominant allele, it will conceal the presence of the recessive, therefore, the two parents will need to present the recessive alleles, so that there is the possibility of expressing themselves in the offspring.

of

explanation:

answer: depends on how munch your body can take ( personal advice use 6 lines then quit)

explanation: