Which of the following determines genetic sex (male or female) in mammals?  

A.  the Y chromosome contained in the egg
B.  the SRY gene on the Y chromosome
C.  the temperature of the developing fetus
D.  the genetic makeup of the parents
E.  the acrosome of the sperm


B.  the SRY gene on the Y chromosome

Biology & Microbiology

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A. B B. A C. C

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RNA molecules that act as enzymes to catalyze specific biochemical reactions are

A) RNases. B) splice acceptors. C) ribozymes. D) tRNAs. E) restriction enzymes.

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Some cells are very large, seemingly in defiance of maintaining a large surface area to volume ratio. What are some

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The most common route of transmission for true pathogenic fungi is ingestion of spores.

Answer the following statement true (T) or false (F)

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