Insertion of two bases into the coding region of a gene just after the start codon of a gene will result in
a ____ mutation.
a. missense
b. chromosomal
c. frameshift
d. silent
e. nonsense
C
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When two true-breeding parental genotypes are crossed, the offspring are referred to as the
A. F1 generation. B. true recessives. C. F2 generation. D. test cross.
STR alleles differ by the number of copies of a set of nucleotides, such as AGA
a. True b. False Indicate whether the statement is true or false
Both Streptococcus pyogenes and Corynebacterium diphtheriae are highly pathogenic, and the disease symptomology can be very severe. Why is this?
A. They induce autoimmune states in the patients. B. There are no antibiotics useful for diseases caused by these bacteria. C. Infants and children are the high-risk groups, and their mortality rate is higher than for other ages. D. Both bacteria produce potent exotoxins.
Sapwood develops from:a
secondary xylem b. secondary phloem c. primary phloem d. primary xylem e. cork parenchyma