Answer:
Forests store large amounts of carbon. When fossil fuels are burned, carbon from dead and decayed plants, animals and phytoplankton that lived hundreds of millions of years ago (before dinosaurs existed), is released into the atmosphere in the form of carbon dioxide. .
Answer:
Changes in the Mc1r gene sequence are not responsible for the colour difference in the mice sampled from New Mexico, however, leading the researchers to conclude that the almost identical dark coat colours developed multiple times in rock pocket mice, an example of convergent evolution.
Answer:
H Flies with long wings can produce offspring with short wings.
Explanation:
For example, if we name the gene for the wings length with A, then the fruit flies with short wings have the genotype aa (recessive homozygous), while those with long wings can have either AA (dominant homozygous) or Aa (heterozygous) genotype. So, if two fruit flies with long wings and Aa genotype are crossed:
P: Aa x Aa
F1: AA Aa Aa aa
There is a 25% chance that offspring will have short wings.
Answer:
Sutton and Boveri published independent papers proposing what we now call the chromosome theory of inheritance.
Sickle-cell anemia is a disorder of the blood caused by an inherited abnormal hemoglobin which is an oxygen-carrying protein within the red blood cells. The abnormal hemoglobin causes distorted (sickled appearing under a microscope) red blood cells.
