Let 'A' denote the dominant allele and 'a' denote the recessive allele. The heterozygous cross will involve a cross between Aa and Aa i.e, Aa x Aa. The image shows the cross using a Punnett square to give an idea about the resultant offspring genotypes. The resultant offspring will have 3 dominant phenotype (yellow colored) and 1 recessive phenotype. Thus the probability of the dominant phenotype in the offspring is 75% or 3/4.
Answer:
A plant cells contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many smaller vacuoles. Plant cells have a cell wall as well as a cell membrane. In plants the cell wall surrounds the cell membrane.
The spinal fluid is actually called cerebrospinal fluid(CSF). It's job is to pretty much protect the brain and spine. It also soaks them in nutrients and gets rid of waste products from the spine and brain.
Similar DNA may support "common" ancestry. ☺
The DNA is packaged... it starts by being wrapped around special protein molecules (histones). This forms a nucleosome.