#Question id: 4765
#Unit 8. Inheritance Biology
The recessive mutant allele that causes cystic fibrosis is much more frequent in Caucasians population than in other world populations. Some scientists believe heterozygotes must have had a survival advantage during plagues such as cholera that occasionally swept through this population. What concept does this illustrate?
#Question id: 28482
#Unit 5. Developmental Biology
A cell become the trophoblast cells by the activation of the transcription of cdx2 gene, these cdx2 gene is regulated by which transcriptional factor?
#Question id: 24581
#Unit 3. Fundamental Processes
If the mismatch is near 3’ then which of the following will degrade strands of DNA in the 5’ → 3’or 3’ → 5’ direction
#Question id: 3459
#Unit 11. Evolution and Behavior
A vampire bat sharing blood with another bat that is not its kin is an example of ________.
#Question id: 24431
#Unit 1. Molecules and their Interaction Relevant to Biology