5. Una población de perezosos de tres dedos en un bosque

Some mutations result in proteins that function well at one temperature but are nonfunctional at a different (usually higher) te

Vadim26 [7]

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.

7 0

3 years ago

Which mutation(s) cause the product to be a non-functional protein?

erica [24]

Answer:

The correct answer is - option D. nonsense and frameshift.

Explanation:

If there is a change in the sequence of DNA resulting in premature stop codon mRNA during transcription is known as a nonsense mutation and result in a non-functional protein.

a frame-shift mutation takes place when at least two nucleotides are altered and there are less chances to be changed by two others coding for the same nucleotide. It leads to a non-functional protein.

8 0

3 years ago

Scientists discovered that the inner core of Earth is a solid. Explain what evidence supports this thinking. Be sure to include

Leya [2.2K]

Answer:

The inner core is solid because the inner core consists of a lot of pressure and high temperatures. And the more pressure and high temperatures the more dense the substance gets.

Explanation:

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5 0

3 years ago

What are the products of hyrolysis of atp? what is released during this reaction

Veseljchak [2.6K]

Upon hydrolysis of the molecule of ATP, the products are a molecule of ADP or adenosine diphosphate and an inorganic phosphate molecule, along with substantial energy released upon breaking the chemical bond connecting the high energy containing phosphates together in ATP.

4 0

4 years ago

Which applies to an earthworm but not to a hydra?

kow [346]

I think the hydra lacks the specialized cells for touch and chemical detection. On the other hand earthworms have touch, light, vibration and chemical receptors along the entire body surface. Both of them are invertebrates (those animals without a backbone), they include insects, worms, jelly fish, spiders among other animals.

3 0

3 years ago