In roses assume that red or yellow flower color is controlled by a single gene with two alleles. When you cross roses with yellow flowers with each other you always get only roses that produce yellow flowers, but when you cross roses with red flowers with each other you sometimes get offspring that produce yellow flowers. If you take one of the rose plants with red flowers that sometimes produces offspring with yellow flowers and cross it with a rose plant that makes yellow flowers you would expect that their offspring will be:

What does homeostasis means in biology?

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area