PLTW HBS Final Exam Review With 100% Correct Answers 2025/2026

PLTW HBS Final Exam Review With 100% Correct Answers 2025/2026 Location on the body where routine blood is drawn from the body? - answer-Veins in the arm A basin-shaped structure in the skeleton of many vertebrate that is formed by the pelvic girdle together with the sacrum and often various coccygeal and caudal vertebrae and that in humans is composed of the 2 hip bones bounding it on each side and in front while the sacrum and coccyx complete it behind? - answer-Pelvis Longest bone of the upper arm or forelimb extending from the shoulder to the elbow - answer-Humerus Differences in DNA sequences on homologous chromosomes that can result in different patterns of restriction fragment lengths (DNA segments resulting from treatment with restrictioned enzymes)? - answer-Restriction Fragment Lengths Polymorphisms (RFLP's) Situated at or toward the hind part of the body - answer-Dorsal A group of subcortical structures (as the hypothalamus, the hippocampus, and the amygdala) of the brain that are concerned especially with emotion and motivation? - answer-Limbic System Either of the pair of sensory nerves that compromise the 2nd pair of cranial nerves, arise from the ventral part of the diencephalon, form an optic chiasma before passing to the eye and spreading over the anterior surface of the retina, and conduct visual stimuli to the brain? - answer-Optic Nerve A defect of the optical system (as a lens) causing rays from a point to fail to meet in a focal point resulting in a blurred and imperfect image? - answer-Astigmatism A restriction enzyme is... - answer-A protein that recognizes a specific, short nucleotide sequence & cuts DNA only at that specific site (target sequence)DNA is__________and will move through the gel toward the _______end of the electrophoresis chamber - answer-The molecule that encodes the genetic instructions used in the development and functioning of all known living organisms and many viruses Positive