Someone who has diabetes insipidus has not enough ________

Fill in the blank(s) with correct word


antidiuretic hormone

Biology & Microbiology

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The presence of a lophophore in a newly discovered species would suggest that the species _____

A) has an exoskeleton B) grows by shedding its external covering C) is more closely related to an arthropod than a mollusk D) is motile E) is a suspension feeder

Biology & Microbiology

In E. coli replication the enzyme primase is used to attach a 5 to 10 base ribonucleotide strand complementary to the parental DNA strand. The RNA strand serves as a starting point for the DNA polymerase that replicates the DNA

If a mutation occurred in the primase gene, which of the following would you expect? A) Replication would only occur on the leading strand. B) Replication would only occur on the lagging strand. C) Replication would not occur on either the leading or lagging strand. D) Replication would not be affected as the enzyme primase in involved with RNA synthesis.

Biology & Microbiology

The indicator(s) in the Bile Esculin Agar is (are)

A. Bile salts only B. Esculin C. Esculetin D. Ferric citrate E. Bile salts & esculin

Biology & Microbiology

Langur monkeys and ruminants (such as cows) are the only known mammals in which lysozyme functions in the stomach instead of in tears and saliva. The cow/langur enzyme also has five amino acid changes that are not present in other mammals. What is most likely to be true about lysozyme from langurs and cows compared to lysozyme from other mammals?

A. These five amino acid changes alter the specificity of the enzyme, such that the cow/langur lysozyme attacks viruses instead of bacteria. B. These five amino acid changes somehow make the cow/langur lysozyme resistant to pepsin digestion. C. Salivary and tear lysozyme functions best at a higher H+ ion concentration than the cow/langur enzyme. D. The five amino acids that langurs and cows have in common in their lysozyme were present in the common ancestor of all mammals.

Biology & Microbiology