The typical lesion of primary syphilis is

A) purulent sore throat.
B) a generalized rash.
C) the development of buboes in the lymph nodes at the site of infection.
D) a painless reddened lesion called a chancre at the site of infection.
E) gummas in bones, in nervous tissues, or on the skin.


D

Biology & Microbiology

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What type of inheritance pattern does achondroplasia exhibit?

a. Autosomal recessive b. Autosomal dominant c. X-linked recessive

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Translocation occurs when:a

part of a chromosome breaks off and attaches to a nonhomologous chromosome. b. part of a chromosome breaks off and attaches to a homologous chromosome. c. crossing-over events occur. d. genes move from one area on a chromosome to another area on the same chromosome. e. a Y chromosome replaces an X chromosome in a female cell.

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Which of the following is TRUE in the Watson-Crick model of DNA?

A) Four different types of bases are found in DNA. B) Phosphate groups always bond to ribose. C) Ribose always bonds to a nitrogenous base. D) The number of adenines equals the number of guanines. E) During replication, the phosphate groups are copied but the base sequence is not copied.

Biology & Microbiology

The fermentation of 1 glucose yields a NET ATP production of

What will be an ideal response?

Biology & Microbiology