The ?S and ?A alleles can be distinguished on the basis of __________

A) variations in the length of their DNA restriction fragments
B) variations in the length of the amino acid sequence
C) different electrophoretic mobilities caused by a single amino acid substitution
D) variations in the length of both the DNA restriction fragments and the amino acid sequence (both A and B)
E) variations in the DNA restriction fragments and different electrophoretic mobilities of the protein products due to a single amino acid substitution. (both A and C)


E

Biology & Microbiology

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Key sequences exist within promoters, which vary somewhat among various promoters but are sufficiently constant that they can be represented by a sequence of bases most often found at each position. These representations are called ________ sequences.

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Fill in the blank(s) with correct word

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Which organelle contains almost all of the genetic material of the cell?

Nucleus Nucleolus Rough endoplasmic reticulum Cytoplasm

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