#Question id: 10715
#Unit 10. Ecological Principles
Following table shows the presence (+) or absence (-) of five species in three communities (A, B, C):
Based on the above, which of the following is the correct order of diversity strength communities?
#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: 3601
#Unit 8. Inheritance Biology
In cucumbers, dull fruit (D) is dominant over glossy fruit (d), orange fruit (R) is dominant over cream fruit (r), and bitter cotyledons (B) are dominant over non-bitter cotyledons (b). The three characters are encoded by genes located on different pairs of chromosomes. A plant homozygous for dull, orange fruit and bitter cotyledons is crossed with a plant that has glossy, cream fruit and nonbitter cotyledons. The F1 are intercrossed to produce the F2. What will be expected proportions progeny with Dull, Orange and non-bitter?
#Question id: 29441
#Unit 6. System Physiology – Plant
#Question id: 28340
#Unit 5. Developmental Biology
Which of the following gene is specify the characteristic structures of each segment?