There are two types of alleles. an allele that masks another is . the one that is masked is called . an organism that has the same alleles for a particular trait an organism that has different alleles for a particular trait

answer choices are: homozygous // phenotype // allele // recessive // heterozygous // dominant // genotype //

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.