Which genetic diseases involve defects in DNA repair that affect cell division?
a. Gaucher disease and Werner syndrome
b. Kearns-Sayre syndrome and progeria
c. progeria and Gaucher disease
d. Gaucher disease and cystic fibrosis
e. progeria and Werner syndrome
e
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What is the term for crosses between parents that differ in only one trait?
A) Testcrosses B) Cross fertilize C) Monohybrid crosses D) Dihybrid crosses E) Reciprocal crosses
A person with type A positive blood has which antibodies?
a. A only b. B only c. A and B d. neither A or B e. Rh
Which of the following is true regarding single pass transmembrane proteins?
A. They traverse the membrane more than once and can only be extracted by using detergents B. Have 2-20 hydrophobic segments C. Protrude from only one side of the membrane D. Are comprised of 90% beta-sheet structures E. Contain only one hydrophobic segment
Cytoplasm in a plant cell will shrink if the cell is
a. placed in a concentrated salt solution b. kept warm and moist and in medium light c. placed in distilled water d. exposed to a different concentration of nitrogen gas