O When we are considering regulatory genes where forward mutation decreases expr

Question

O When we are considering regulatory genes where forward mutation decreases expression and back mutation increases expression. Question 18 1 pts Sunflower hybrids resulting from crosses between wild sunflowers and their domesticated relatives have high rates of survival. This would seem to suggest that the hybrids have a high fitness. However, before reaching this conclusion, you should next examine O whether hybrids have a higher mutation rate than their parents. 0 the number of offspring produced by hybrids. whether there is evidence of balancing selection in the parents. O the rate at which wild migrants enter populations of domestic sunflowers. Question 19 1 pts

Explanation / Answer

In this it is found that on crossing the wild sunflowers with domesticated relatives, the survival rate is higher which clearly indicates that number of offspring produced is higher as compared to number of offspring produced when two wild sunflowers cultivars are crossed. If the wild migrants enter the domestic sunflowers at a very rapid rate, it would not give a very positive fitness level.

The option is whether hybrids have a higher mutation rate than their parents. It is because the hybrids might undergo mutation which might impart it superior characteristics.

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