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
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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.
A. convergence B. consensus C. idealized D. common
The hormone ________ removes calcium from the blood and causes it to be stored in the bone
Fill in the blank(s) with correct word
Energy has discrete pockets called
A) wavelengths B) photons C) electro-magnetic spectrum D) pigments
Which organelle contains almost all of the genetic material of the cell?
Nucleus Nucleolus Rough endoplasmic reticulum Cytoplasm