QUESTIONS AND
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, A cross between two heterozygous F1 plants produces a ratio of 15:1 in the F2
offspring. Which of the following best describes the ratio?
A. Modified monohybrid ratio
B. Modified dihybrid ratio
C. Normal monohybrid ratio
D. Normal dihybrid ratio - CORRECT ANSWERS-B. Modified dihybrid ratio
The normal dihybrid ratio is 9:3:3:1, so this isi a modified dihybrid ratio. The monohybrid
ratio is 3:1.
Which of the following best describes matter in which the components cannot be broken
down into simpler substances?
A. Molecule
B. Element
C. Mixture
D. Compound - CORRECT ANSWERS-B. Element
An element is a substance made of a single type of atoms that are generally held
together by physical forces.
Which of the following formulas best summarizes a simple replacement reaction?
A. A+B= AB
B. AB+C= AC+B
C. AB+CD= AD+BC
D. AB= A+B - CORRECT ANSWERS-B. AB+C= AC+B
This is a single replacement reaction because element B is replaced by element C.
Which of the following structures stores urine before excretion?
A. Kidneys
B. Ureters
C. Bladder
D. Urethra - CORRECT ANSWERS-C. Bladder
Which of the following structures is an irregularly shaped bone?
A. Femur
B. Metacarpal
C. Rib
D. Vertebra - CORRECT ANSWERS-D. Vertebra
Respiratory System - CORRECT ANSWERS-Oxygen/carbon dioxide exchange (Lungs,
trachea, larynx, nasal cavities, and pharynx)
Breakdown of which of the following begins in the small intestine?
A. Fats
B. Fiber
C. Proteins
D. Carbohydrates - CORRECT ANSWERS-A. Fats