Mendel knew very little about genetics and nothing about genes or chromosomes. However, his law of independent assortment explains a fundamental phenomenon of genetics. What is that phenomenon?
a. formation of the cleavage furrow and separation of the two progeny in telophase
b. crossing over during gametogenesis
c. random sorting of the homologous chromosomes during metaphase I
d. fertilization and formation of the zygote during sexual reproduction
c. random sorting of the homologous chromosomes during metaphase I
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What kind of eye color would be expressed in male progeny from a white-eyed female and a red-eyed male?
A. All males would have red eyes. B. All males would have white eyes. C. Half of the male progeny would have red eyes and half of the male progeny would have white eyes (1:1 ratio of eye color in males).
Where do the light-dependent reactions take place?
a. stroma b. intermembrane space c. thylakoid membrane d. thylakoid lumen
Facilitated diffusion is limited by
A. the substrate concentration. B. the size of the cell. C. carrier proteins in the membrane. D. osmotic pressure. E. the size of the pores in the membrane.
You are worried about your friend Mary, a type 1 diabetic. She is nauseated, short of breath, tired, and confused. She says not to worry because she just has a case of the flu
What diagnostic test should you urge her to perform to make sure that there is nothing more serious going on? A) blood bilirubin B) urinary ketones C) blood pressure D) stress test for the heart