Smooth muscle and striated muscle have distinct mRNA forms for some genes due to ____
a. aminoacylation
b. alternative splicing
c. polyadenylation
d. degeneracy
e. exon shuffling
B
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Which of the following would be considered density-independent factors that could affect the growth of a population?
A. predation B. droughts C. parasitism D. resources E. disease
his4 TRP1; his4 TRP1; HIS4 trp1; HIS4 trp1
A haploid yeast strain has mating type a and genotype his4 TRP1. A different haploid yeast strain has mating type ? and genotype HIS4 trp1. The two strains mate and produce diploid offspring with genotype his4 TRP1 / HIS4 trp1. The diploid cells undergo meiosis to produce a variety of tetrad types. In the following questions, the genotypes of the spores in a tetrad are shown. For each tetrad, tell what type it is: parental (PD), non-parental (NPD), or tetratype (T). A) PD B) NPD C) T D) cannot be determined
The accompanying figure is a micrograph of what kind of tissue?
a. cardiac muscle b. skeletal muscle c. smooth muscle d. cartilage e. dense connective
If a person gets a shot of epinephrine, he or she almost immediately feels the effects (e.g., increased heart and breathing rates). If the same person gets a shot of a steroid hormone such as cortisone, there is no immediate response
What is the reason for this difference?