What is the purpose in the genetic engineering of crop plants and domestic animals? Briefly explain how GMOs are created. What foods in your supermarket contain GMOs? Are foods that contain GMOs safe for human
Explain the difference between artificial and natural selection in terms of: (i) Source of selection pressure (ii) Types of traits selected for (iii) Fitness of offspring as the result of selection Explain why artificial selection does not result in animals ...
Kin selection theory provides one important explanation for seemingly altruistic helping behaviour by non-breeding subordinates in cooperative breeding animals. However, it cannot explain why helpers in many species provide energetically costly care to unrelated offspring. Here, I use comparative analyses to...
We conducted this for aloft and not for on-ground conditions since conditions aloft are more variable from day to day than on-ground conditions. Methods Tracking and environmental data acquisition We caught nine adult and eighteen juvenile Demoiselle cranes at their breeding ground in Northeast ...
molten lava has a temperature in excess of 700 °C. While populations of plants and animals in the immediate path of a lava flow and adjacent to it are rapidly incinerated, those somewhat further away experience significant thermal stress. The rapid upregulation of the heat shock genes, along...
For clarity, parameter estimates and CI are shown on the logit scale (as estimated by logistic regression) Full size image Discussion Unfolding fine-scale habitat selection is critical to reveal the complexity of predator behaviours, and ultimately how they impact their prey. Habitat selection ...
In the first meiotic division (MI) of oocytes, the cortically positioned spindle causes bivalent segregation in which only the centre-facing homologue pairs are retained. ‘Selfish’ chromosomes are known to exist, which bias their spindle orientation an
and fully visible to the animals, was the experimenter. Food reward for the test were placed in a bowl in front of the experimenter, where half the bowl held the HVR and the other half held the LVR. Both food reward were present and visible in every condition, and the HVR was always ...
Answer to: Explain how natural selection and sexual selection can work together to cause the evolution of large antlers on male moose. By signing...
How are animals that are different species able to reproduce? What is convergent evolution? (a) Two or more unrelated species change independently of each other and the environment in which they live (b) Two or more related species change to become less si...