Gene families are composed of homologous genes that have different evolutionary origins but the same function
Indicate whether the statement is true or false.
Answer: FALSE
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Bell-shaped distributions produced by plotting results of F2 and F3 crosses are typical of which type of inheritance?
A) incomplete dominance B) hemizygosity C) codominance D) alternation of generations E) multiple-factor inheritance
The probability of parents with the genotypes (Mm) ´ (Mm) having an offspring with the genotype (mm) is
A. 1/2. B. 1/4. C. 3/8. D. 0.
The nuclear localization signal is recognized by and binds to which protein in the process of nuclear protein import?
a. Ran b. Importin c. Exportin d. The outer fibril protein
Lactose is a disaccharide of glucose and galactose, and its digestion requires the actions of the enzyme lactase
If lactose is eaten as part of the diet but is not digested by lactase, this sugar is then metabolized by bacteria in the intestine, leading to the symptoms of lactose intolerance. Lactose intolerance, therefore, results from a(n) A) lack of dehydration synthesis of lactose. B) inability of the body to produce lactose. C) low blood lactose level. D) lack of hydrolysis of lactose.