Lets say that the genotypes are:
Male affected:XbY
Male unaffected: XaY
Female affected: XbXb
Female carrier: XaXb
Female unaffected:XaXa
P: XbY x XaXa
F1: XaXb XaXb XaY XaY The middle square is female carrier.
P:XbY x XaXb
F1: XaXb XbXb XaY XbY The left square is affected female.
P:XaY x XbXb
F1: XaXb XaXb XbY XbY The right square is affected male.
Answer:
Explanation:
Causes for Disruptions in the Food Web
Overpopulation.
Water pollution.
Acid rain.
Climate change.
Air pollution.
Illegal hunting.
Soil pollution.
Illegal dumping.
Livestock producers and breeders rank livestock on their ability to produce high quality, efficient breeding animals and market-worthy <u>offspring</u>.
To be able to effectively evaluate breeding and market animals is of vital economic importance for the animal markets. The same traits used to evaluate <u>high-grade slaughter animals</u> are also important in the <u>grading </u>of <u>breeding stock</u>.
When we judge livestock we classify them as:
- Superior livestock
- Average livestock
- Inferior livestock
We are looking for the most desirable traits to fit our particular market and genetic needs. The "Livestock Judging Manual" indicates that some of the most prevalent traits necessary to score a better rating are:
- <em>Live weight</em>
- <em>Fat depth</em>
- Muscling
and many more. The most important of which is muscling given that an animal with more muscle will produce more desirable meat for the average consumer, and therefore can be sold at higher prices.
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Explanation:
- <em>Permian Triassic Extinciton</em>
Lots of places were affected, extinction; in species, vertebrates, etc, etc.
- <em>Devonian extinction</em>
Extinction-- in marine species...