In crosses involving complete dominance, the F2 genotypic ratio is 1:2:1 and is expressed as a phenotypic
____________________ ratio (express as x:x). Fill in the blank(s) with the appropriate word(s).
ANSWER: 3:1
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Which of those below is NOT an important consideration when designing a fusion protein construct?
A) Avoid hybridization of the fusion gene in the artificial construct. B) Reading frame is the same for both the fusion gene and reporter gene. C) Transcriptional start and stop signals are shared. D) Translational start and stop signals are shared.
In humans and other animals, maternal inheritance is characteristic of mitochondrial diseases that often affect ____ phosphorylation
Fill in the blank with the appropriate word.
Members of this phylum have radial symmetry and nematocysts; they may have polyp or medusa
forms (or both) as adults.
a. Nematoda b. Cnidaria c. Porifera d. Rotifera e. Ctenophora
Isotype switching occurs when
A) an antibody changes which class it is. B) an antibody changes epitope it can recognize. C) a B cell changes which antibody class it is producing. D) a B cell switches which epitope it recognizes. E) activated B cells differentiate into either plasma or memory cells.