If a parent cell has 16 chromosomes, how many sister chromatids will be present after duplication of the chromosomes?
A) 16 B) 64 C) 4 D) 8 E) 32
E
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Which of the following sequences correctly describes mitosis?
A) prophase -> anaphase -> metaphase -> telophase= B) prophase -> metaphase -> anaphase -> telophase C) prophase -> metaphase -> telophase -> anaphase D) metaphase -> prophase -> telophase -> anaphase E) metaphase -> prophase -> anaphase -> telophase
The purpose of the light reactions is to produce ____.
A. NADPH and ATP B. oxygen and glucose C. ATP and oxygen D. glucose and NADPH E. carbon dioxide and ATP
Which term refers to a structure with stems and leaves that arise from apical meristems?
a. protonema b. rhizome c. shoot system d. vascular system
Researchers unravel cause-and-effect relationships in complex natural processes by performing experiments in which they change ________ .
a. several independent variables at a time b. both the dependent and independent variable at the same time c. one dependent variable without altering the independent variables d. several dependent variables without altering the independent variables e. one independent variable at a time