Let's complete the question by adding the missing piece of information
The mutation results in the breed's distinctive point markings (ears, mask, tail and legs) and lighter body color. Use this information to explain the pattern of the cat's fur pigmentation.
Answer:
The mutation of the TYR gene results in the enzyme tyrosinase to be heat susceptible. Tyrosinase takes part in the production of melanin to give darker fur in colder areas. The areas like the tail, legs, ears, and face do lack as much body heat and so will get darker.
Explanation:
A unique protein (enzyme), known as tyrosinase, is the major workhorse in the development of the melanin. A research team from the University of California, USA, led by L. A. Lyons, discovered that Siamese cats have tyrosinase that went through mutation due to the changes in the DNA helix and is temperature-sensitive as it's activity reduces with a rise in temperature. This explains why cat’s warm parts of the body are coated with white, melanin-lacking hair since Tyrosinase is deactivated in these regions and melanin is not developed – hair is white-colored. On the other hand, in cooler boundary the enzyme is active and the melanin is formed – hair has dark color.
The nurse should first note the amount, color as well as the
odor of the amniotic fluid.
Explanation
<span>When a patient’s membrane ruptures
spontaneously, the nurse should start by checking the consistency, odor, as
well as the volume of the amniotic fluid. For this case, there are minimal
chances of cord prolapse because the fatal head is already engaged and at 0
station. If the fatal head is not yet engaged, the nurse should start by
checking for cord prelapse if the membrane ruptures spontaneously. </span>
Answer:
chromosomes of the sex are doubled
Explanation:
Minhas desculpas, eu não falo português. Espero que você encontre alguém que faça !! Obrigado pelos pontos. :)
