When cells begin to divide, chromatin strands coil and condense to structures called . A.
DNA

B.
chromosomes

C.
centrioles

D.
spindle fibers

The diagram shows the results when two parents are crossed. the letters represent alleles for a trait that is controlled by three different genes. which best describes this inheritance pattern? multiple allele because a trait is controlled by three different genes polygenic because the offspring have alleles from both parents multiple allele because the offspring have alleles from both parents polygenic because a trait is controlled by three different genes