________ are heritable changes in a gene or chromosome
Fill in the blank(s) with correct word
Mutations
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Which of the following polypeptide chains would be sequenced from the mRNA code AGG-GAG-CCC?
A. serine - aspartate - proline B. arginine - glutamate - alanine C. serine - leucine - proline D. arginine - glutamate - proline
A cross was made between homozygous wild-type female Drosophila and yellow-bodied male Drosophila. All of the resulting offspring were phenotypically wild type
Offspring of the F2 generation had the following phenotypes: Sex Phenotype Number male wild 96 male yellow 99 female wild 197 Based on this information: (a) Is the mutant gene for yellow body behaving as a recessive or dominant gene? (b) Is the yellow locus on an autosome or on the X chromosome?
A nucleotide is composed of the following molecules arranged in this order:
A. three amino acids covalently bonded in a series. B. three fatty acids individually bonded to three different places on glycerol. C. a base bonded to a sugar bonded to a phosphate. D. mRNA bonded to tRNA bonded to an amino acid.
In yeast, posttranslational translocation of proteins targeting the ER is
a. a process affecting many newly synthesized proteins. b. much less common than in mammalian cells. c. rare. d. impossible, because all translocation into the ER is driven by the process of protein synthesis.