DNA polymerase is an enzyme that has several functions in DNA replication. Which of these is NOT a function of DNA polymerase?
A) adding nucleotides to a strand of DNA as it is being generated
B) identifying incorrectly paired nucleotides in newly-generated DNA
C) removing and replacing incorrect additions to a new strand of DNA
D) breaking hydrogen bonds to allow double-stranded DNA to "unzip"
Ans: D) breaking hydrogen bonds to allow double-stranded DNA to "unzip"
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The vaginal microbiome changes as a female matures because
A. most sexually mature women use douching as a means to eliminate the vaginal microbiome. B. hormonal changes and sexual activity alter the environment of the vagina. C. episodic treatments with antibiotics for UTIs and antifungals for vaginitis eliminate many of the normal microbiota. D. estrogen has an antibiotic effect on the vaginal microbiome.
The ________ is a microtubule structure that binds to sister chromatids to separate them in anaphase
Fill in the blank(s) with correct word
Colonization specifically refers to the multiplication of a pathogen on or within a host, and includes the resulting tissue invasion and damage.
Answer the following statement true (T) or false (F)
Which of the following could be classified as a "transitional form" fossil?
A. Hyracotherium, the first fossil of a horse that was found 55 mya. B. An early amphibian tetrapod from 360 mya. C. A clam shell laying at the bottom of the ocean. D. A fossil that has all of the ancestors traits and none of the present day animals traits. E. A fossil that has some ancestoral traits and some traits that are found in present day animals.