Nondisjunction of the XY pair during the first meiotic division can produce sperm with 2 X chromosomes and 2 Y

chromosomes.
_________________ Indicate whether the statement is true or false.


False - second

Biology & Microbiology

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Except for the stop codons, the codons in the genetic code specify which of ____ amino acids to use

a. 5 b. 64 c. 4 d. 20 e. 3

Biology & Microbiology

Atmospheric carbon dioxide levels

a. drop in the winter. b. drop in the spring. c. drop in the summer. d. drop in the fall. e. always remain constant.

Biology & Microbiology

A(n) ________ is a compound that dissolves into anions and cations in water.

A. carbohydrates B. proteins C. waxes D. peptidoglycan E. sterols

Biology & Microbiology

Match each insect order with the correct representative insects.

A. Hymenoptera B. Coleoptera C. Diptera D. Hemiptera

Biology & Microbiology