Figure 42.2
The following question refers to the figure above illustrating frog development.
Organ formation is occurring at ____.
A. A
B. B
C. C
D. D
E. E
Answer: D
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Mendel's law of segregation indicates that
A. gametes have one allele copy for each gene B. more gametes carrying the dominant allele are produced than gametes carrying the recessive allele C. gametes are diploid D. two alleles segregate into each gamete.
What explanation can you give for why the sodium-potassium pump does not run out of ions to move in or out of the cell?
A. The cell continuously produces more ions to replace those moved by the pump, maintaining a constant supply. B. Leak channels are always open, allowing the passage of sodium ions (Na+) and potassium ions (K+) across the membrane. C. Many of the ions moved in or out then diffuse passively back through the membrane in the opposite direction.
Which of these is NOT a legal or physical disadvantage of current reproductive technologies?
A) Babies born as a result of In Vitro Fertilization have significantly higher rates of autism. B) Surgery is necessary to remove eggs for In Vitro Fertilization. C) Hormone injections to promote ovulation may cause the birth of multiples. D) It is sometimes unclear how current law applies to babies born through current reproductive technologies.
What does photosynthesis capture?
a. chemical energy b. light energy c. heat d. magnetic energy