A researcher is using adult stem cells and comparing them to other adult cells from the same tissue. Which of the following is a likely finding?
A) The nonstem cells have lost the promoters for more genes.
B) The cells from the two sources exhibit different patterns of DNA methylation.
C) Adult stem cells have more DNA nucleotides than their counterparts.
D) The two kinds of cells have virtually identical gene expression patterns in microarrays.
E) The nonstem cells have fewer repressed genes.

Why is answer A), The nonstem cells have lost the promoters for more genes, INCORRECT

and

Why is answer B), The cells from the two sources exhibit different patterns of DNA methylation, CORRECT?

can you make it bigger i can't see it

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.