Only plants need cell walls, animals do not. Cell walls help maintain cell shape in plants, while the cell membrane helps support animal cells.
Based on the symptoms Mrs. Hernandez most likely has arthritis. Arthritis is the inflammation of joints, it may be one or multiple joints.Symptoms of arthritis include pain, stiffness, swelling, redness and a decrease in range of motion. There are two main types; osteoarthritis and rheumatoid arthritis.
Answer:
E. 1/16
Explanation:
In a duplicate dominant epistasis, when one locus presents a dominant genotype and the other presents a recessive genotype, the dominant one hides the effective of the recessive gene. Therefore, a recessive phenotype will only be observed when both genes are recessive homozygous (aabb).
Assuming a doubly-heterozygous mating (AaBb x AaBb), the probability that both genes are recessive homozygous is:
![P=\frac{1}{2}*\frac{1}{2}*\frac{1}{2}*\frac{1}{2}\\P =\frac{1}{16}](https://tex.z-dn.net/?f=P%3D%5Cfrac%7B1%7D%7B2%7D%2A%5Cfrac%7B1%7D%7B2%7D%2A%5Cfrac%7B1%7D%7B2%7D%2A%5Cfrac%7B1%7D%7B2%7D%5C%5CP%20%3D%5Cfrac%7B1%7D%7B16%7D)
1/16 of offspring are expected to show the recessive phenotype.