#Question id: 28669
#Unit 2. Cellular Organization
#Question id: 4753
#Unit 8. Inheritance Biology
Pattern baldness in humans is a sex-influenced trait that is autosomes dominant in males and recessive in females. What is genotype of both parents with normal hair had one son with pattern baldness and another son is normal hair?
#Question id: 7207
#Unit 5. Developmental Biology
Which of the following statements is true about formation of the primitive streak ?
A. by the cellular dance mechanism, the cells came down the sides of the epiblast to undergo a medially directed intercalation of cells in the posterior margin where primitive streak forms.
B. Cellular dance is mediated by wnt planar cell polarity pathway in the hypoblast cells, at the posterior edge of the embryo.
C. The Wnt pathway activated by fibroblast growth factors (FGFs) produced by the hypoblast.
D. The Wnt planar cell polarity pathway activated by b-catenin produced by the epiblast.
#Question id: 11082
#Unit 7. System Physiology – Animal
A 67-year-old man has a solid tumor that pushes
against an airway partially obstructing air flow to the distal alveoli. Which
point on the ventilation-perfusion line of the O2-CO2 diagram corresponds to
the alveolar gas of these distal alveoli?
#Question id: 19868
#Unit 13. Methods in Biology