The structure that forms most of the flesh of an apple is the
a) petal.
b) ovary.
c) stamen.
d) carpel.
e) sepal.
Ans: b) ovary.
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Which of the following will cause a shift in the hemoglobin-oxygen dissociation curve to the right?
A) increase in temperature only B) increase in plasma pH only C) increase in 2,3-BPG (2,3-bisphosphoglycerate) only D) both an increase in temperature and an increase in 2,3-BPG E) both an increase in temperature and an increase in plasma pH
When compared to their warmer water counterparts, cold-water plankton often:
What will be an ideal response?
In ligase-deficient strains of E. coli, DNA and chromosomal replication are unaltered because ligase is not involved in DNA replication
Indicate whether the statement is true or false
It has been found that a particular "+ –" combination of frameshift mutations in gene X gives a wild-type phenotype, whereas a "– +" combination gives a mutant phenotype, even though the sites of insertion/deletion are the same
How might these results be explained?