LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Breeding two dogs to get a small-sized dog is an example of:
A
sexual selection
B
artificial selection
C
natural selection
D
directional selection
Explanation: 

Detailed explanation-1: -Dog breeding is another prime example of artificial selection. Although all dogs are descendants of the wolf, the use of artificial selection has allowed humans to drastically alter the appearance of dogs.

Detailed explanation-2: -Selective breeding versus natural selection Natural selection is driven by environmental factors that limit survival and reproduction, such as harsh environments or competition for mates. Selective breeding is also known as artificial selection. Artificial selection is driven by human intervention.

Detailed explanation-3: -An example of artificial selection-Dog breeding Domestication is the act of separating a small group of organisms (wolves, in this case) from the main population, and select for their desired traits through breeding.

Detailed explanation-4: -Broccoli, cauliflower, Brussel sprouts, cabbage, kale, and kohlrabi are all the result of selective breeding of a single wild mustard species, Brassica oleracea. Traits of the wild mustard flower buds were artificially selected for and bred to create broccoli and cauliflower.

Detailed explanation-5: -Both agree that natural selection favored wolves that were bold and friendly. They also agree that bold and aggressive wolves would be killed and therefore unable to breed. This allowed the bold and friendly dogs to breed, which was a key to the eventual evolution into dogs.

There is 1 question to complete.